AlphaServer 8200/8400 Service Manual
© Digital Equipment Corporation 1995.
All rights reserved.
Copyright notice

AlphaServer 8200/8400 Service Manual

This document is intended for Digital service engineers. It supplies key information on AlphaServer 8200 and AlphaServer 8400 systems in these sections:

Section	Description
Overview of the Systems	Introduces the AlphaServer 8200 and 8400 systems and gives a brief overview of the system bus, modules, and power subsystem.

Troubleshooting

Troubleshooting with LEDs	Tells how to use the LEDs and other indicators to find problem components in the system.
Console Display and Diagnostics	Tells how to use these tools to find non-functioning components in the system.
DECevent Error Log	Describes how to interpret the error log produced by this utility program.

TLSB Modules

TLSB Modules	Provides procedures for replacing I/O and memory modules and for replacing or adding processor modules.
Updating Firmware	Describes how to use console commands and the Loadable Firmware Update (LFU) Utility to update system firmware.

AlphaServer 8200 Systems

Field Replaceable Units	Describes the components of the AlphaServer 8200 system that are replaceable by field service personnel.
Configuration Rules	Provides configuration information for the AlphaServer 8200 main and expander cabinet, power system, TLSB card cage and storage drawer, I/O interface, and PCI and StorageWorks shelves.
Cabinet Control System	Describes how to remove and replace components of the AlphaServer 8200 cabinet control system.
Power System	Tells how to remove and replace components of the AlphaServer 8200 power system.
Processor System Unit	Tells how to remove and replace components of the AlphaServer 8200 processor system unit.
PCI Shelves	Describes how to remove and replace PCI bus shelves.
StorageWorks Shelves	Tells how to remove and replace StorageWorks shelves and components within StorageWorks shelves.

AlphaServer 8400 Systems

Field-Replaceable Units	Describes the components of the AlphaServer 8400 system that are replaceable by field service personnel.
Configuration Rules	Provides configuration information for the AlphaServer 8400 main and expander cabinet, power system, TLSB card cage, I/O interface, and PCI plug-in unit.
Cabinet Doors and Panels	Tells how to remove and replace the AlphaServer 8400 doors and top and side panels.
Cabinet Control System	Describes how to remove and replace components of the AlphaServer 8400 cabinet control system.
Power and Cooling Systems	Tells how to remove and replace components of the AlphaServer 8400 power and cooling subsystems.
TLSB Card Cage	Describes how to remove and replace the system clock module and card cage.
PCI Plug-In Unit	Tells how to remove and replace a PCI plug-in unit in the AlphaServer 8400 system.
XMI and Futurebus+ Plug-In Units	Tells how to remove and replace these field-replaceable units in the AlphaServer 8400 system.
SCSI Storage Plug-In Unit	Tells how to remove and replace SCSI disks and tapes from a SCSI  PIU.
DSSI Disk Plug-In Unit	Tells how to remove and replace DSSI disks and tapes from a DSSI PIU.
Battery Plug-In Unit	Tells how to remove and replace the BBU fuse, cable, and individual batteries in the battery plug-in-unit.

Appendixes

Console Commands	A quick reference for commands.
Environment Variables	A quick reference for environment variables.
How to Find Option Information	Explains the ways to find information about options.
How to Find Firmware Updates	Explains the ways to find the latest revisions of firmware.

For information on conventions used in this document and lists of related documents, see the Preface.


Preface

Intended Audience

This manual is written for the customer service engineer.

Document Structure

This manual uses a structured documentation design.  Topics are organized into small sections for efficient online and printed reference.  Each topic begins with an abstract.  You can quickly gain a comprehensive overview by reading only the abstracts.  Next is an illustration or example, which also provides quick reference.   Last in the structure are descriptive text and syntax definitions.

Conventions Used in This Document

Icons.  Icons similar to those shown below are used in illustrations for designating part placement in the system described.  A shaded area in the icon shows the location of the component or part being discussed.

Documentation Titles

AlphaServer 8200 and 8400 Documentation lists the books in the AlphaServer 8200 and 8400 documentation set.  Related Documents lists other documents that you may find useful.


AlphaServer 8200 and 8400 Documentation

Title	Order Number
Hardware User Information and Installation
Operations Manual	EK-T8030-OP
Site Preparation Guide	EK-T8030-SP
AlphaServer 8200 Installation Guide	EK-T8230-IN
AlphaServer 8400 Installation Guide	EK-T8430-IN
Service Information Kit	QZ-00RAC-GC
Service Manual (hard copy)	EK-T8030-SV
Service Manual (diskette)	AK-QKNFA-CA
Reference Manuals
System Technical Manual	EK-T8030-TM
DWLPA PCI Adapter Technical Manual	EK-DWLPA-TM
Upgrade Manuals for Both Systems
KN7CC CPU Module Installation Card	EK-KN7CC-IN
MS7CC Memory Installation Card	EK-MS7CC-IN
KFTHA System I/O Module Installation Guide	EK-KFTHA-IN
KFTIA Integrated I/O Module Installation Guide	EK-KFTIA-IN
Upgrade Manuals: 8400 System Only
AlphaServer 8400 Upgrade Manual	EK-T8430-UI
BA654 DSSI Disk PIU Installation Guide	EK-BA654-IN
BA655 SCSI Disk and Tape PIU Installation Guide	EK-BA655-IN
DWLAA Futurebus+ PIU Installation Guide	EK-DWLAA-IN
DWLMA XMI PIU Installation Guide	EK-DWLMA-IN
DWLPA PCI PIU Installation Guide	EK-DWL84-IN
H7237 Battery PIU Installation Guide	EK-H7237-IN
H7263 Power Regulator Installation Card	EK-H7263-IN
H9F00 Power Upgrade Manual	EK-H8463-UI
KFMSB Adapter Installation Guide	EK-KFMSB-IN
KZMSA Adapter Installation Guide	EK-KXMSX-IN
RRDCD Installation Guide	EK-RRDRX-IN
Upgrade Manuals: 8200 System Only
DWLPA PCI Shelf Installation Guide	EK-DWL82-IN
H7266 Power Regulator Installation Card	EK-H7266-IN
H7267 Battery Backup Installation Card	EK-H7267-IN


Related Documents

Title	Order Number
General Site Preparation
Site Environmental Preparation Guide	EK-CSEPG-MA
System I/O Options
BA350 Modular Storage Shelf Subsystem Configuration Guide	EK-BA350-CG
BA350 Modular Storage Shelf Subsystem User's Guide	EK-BA350-UG
BA350-LA Modular Storage Shelf User's Guide	EK-350LA-UG
CIXCD Interface User Guide	EK-CIXCD-UG
DEC FDDIcontroller 400 Installation/Problem Solving	EK-DEMFA-IP
DEC FDDIcontrolle/Futurebus+ Installation Guide	EK-DEFAA-IN
DEC FDDIcontroller/PCI User Information	EK-DEFPA-IN
DEC LANcontroller 400 Installation Guide	EK-DEMNA-IN
DSSI VAXcluster Installation/Troubleshooting Manual	EK-410AA-MG
EtherWORKS Turbo PCI User Information	EK-DE435-OM
KZPSA PCI to SCSI Users Guide	EK-KZPSA-UG
RF Series Integrated Storage Element User Guide	EK-RF72D-UG
StorageWorks RAID Array 200 Subsystem Family Installation and Configuration Guide	EK-SWRA2-IG
StorageWorks RAID Array 200 Subsystem Family Software Users Guide for OpenVMS AXP	AA-Q6WVA-TE
StorageWorks RAID Array 200 Subsystem Family Software Users Guide for DEC OSF/1	AA-Q6TGA-TE
Operating System Manuals
Alpha Architecture Reference Manual	EY-L520E-DP
DEC OSF/1 Guide to System Administration	AA-PJU7A-TE
Guide to Installing DEC OSF/1	AA-PS2DE-TE
OpenVMS Alpha Version 6.2 Upgrade and Installation Manual	AA-PV6XC-TE


Overview of the Systems
AlphaServer 8200/8400

Overview of the Systems

This manual tells how to service two separate, but related, systems.  The AlphaServer 8400 and 8200 systems both use the same system bus (called the TLSB).

The processor, memory, and I/O adapter units that can be configured on this bus are also the same.  The cabinets, and the components they are designed to carry, vary.

AlphaServer 8400/8200 Overview

The AlphaServer 8400 has a 9-slot system bus, and the cabinet is designed to house plug-in units that contain XMI, Futurebus+, and PCI/EISA buses, as well as SCSI and DSSI I/O devices. The AlphaServer 8200 system has a 5-slot system bus and is designed to house PCI/EISA buses and SCSI devices.

TLSB System Bus

Both the AlphaServer 8400 and 8200 systems use the TLSB system bus.   The TLSB is a centerplane in the 8400 system; it offers 9 slots for modules.  For an 8200  system, only the back half of the bus is used, to offer 5 slots for modules.

TLSB Module Overview

The TLSB system bus can hold four types of modules: processor, memory, and two types of I/O module that provide the interface from the TLSB to other I/O buses.  Each module has a molded cover.

KN7CC Processor Module

Up to six KN7CC modules can be used in an AlphaServer 8400 system, and up to three in an AlphaServer 8200 system.  A processor module contains either one or two CPU chips.

MS7CC Memory Module

The MS7CC memory module comes in five variants offering 128 Mbytes,  256 Mbytes,  512 Mbytes, 1 Gbyte, and 2 Gbytes. Up to seven memory modules can be installed in an 8400 system; three in an 8200.

KFTHA Module

The KFTHA module offers four hose connectors that interface between the TLSB bus and external buses:  XMI, Futurebus+, and PCI/EISA.

KFTIA Module

The KFTIA module offers an internal peripheral component interconnect (PCI) bus that connects to various kinds of I/O devices through connectors at the front of the module.  The module also has one hose connector that can interface to a PCI/EISA,  XMI, or Futurebus+ bus.

AlphaServer 8400 Power Subsystem Overview

An AlphaServer 8400 power subsystem has either single-phase or three-phase AC power input.

AlphaServer 8200 Power Subsystem Overview

The power subsystem consists of those system components that deliver electrical current to the rest of the system.

I/O Buses and In-Cab Storage Devices

Both the AlphaServer 8200 and 8400 system and expander cabinets are designed to hold PCI/EISA bus shelves and StorageWorks I/O device shelves.  In addition, the AlphaServer 8400 cabinets can hold XMI and Futurebus+ buses.

Troubleshooting Steps and Tools

Follow steps to isolate system problems.  A possible routine is shown.


AlphaServer 8400 -- Enterprise Environment


AlphaServer 8200 -- Office Environment


AlphaServer Cabinets


AlphaServer 8400/8200 Overview
AlphaServer 8200/8400

AlphaServer 8400/8200 Overview

You will generally find AlphaServer 8200 systems in an office environment. AlphaServer 8400 systems, in temperature and humidity controlled (data center or laboratory) environments.

From a service viewpoint, there are many similarities.  They share the TLSB system bus and its CPU, memory, and I/O modules.

Both systems support industry-standard PCI options.  The AlphaServer 8400 also offers XMI and Futurebus+ I/O support.  The cabinets are different.


TLSB System Bus


TLSB System Bus Overview
AlphaServer 8200/8400

TLSB System Bus Overview

The TLSB system bus is located in the upper right front of the system cabinet in the AlphaServer 8200, and the upper left front in the 8400.

The system bus has separate paths for the address and data.  Data is moved on a 256-bit bus.  The command/address bus is a 40-bit bus.

The bus is a synchronous bus.  The address and commands on the bus are linked to the data on a separate bus by a sequence number.  The sequence number guarantees that data is driven onto the data bus in the same order as the command/address are driven onto the address bus.

The AlphaServer 8400 system bus provides 9 slots for CPU, memory, and I/O modules.  The AlphaServer 8200 system bus provides 5 slots.

Click on the callouts in the figure for more detail.


Front View of TLSB Modules


Power Filter

This area is where 48 VDC power enters the TLSB enclosure and is ultimately supplied to the backplane.


8200 TLSB Slots 7 - 4

The 8200 has a total of 5 slots.  The minimum configuration consists of one processor module (with one CPU), one memory module, and one I/O module (which must reside in slot 8).  The remaining two slots can be used for CPU, memory, or I/O adapters.


8200 TLSB Slot 8

The 8200 has a total of 5 slots.  Slot 8 must always contain an I/O module (KFTHA or KFTIA).


8400 TLSB Slots 4-8

The 8400 has a total of 9 slots.  Slot 8 must always contain an I/O module (KFTHA or KFTIA).  A maximum of 3 I/O modules are allowed on the system; additional ones occupy slots 7 and 6.  Processor and memory modules may occupy slots 4-7, depending on the configuration.


8400 TLSB Slots 0 - 3

The 8400 has a total of 9 slots.  Slots 0-3 may contain either processor or memory modules.


TLSB Centerplane

The system bus used in the AlphaServer 8200/8400 systems runs synchronously with the CPU chips at a sub-multiple of the CPU chip clock rate.

With 300 MHz DECchip 21164 CPU chips, the bus will operate at 75 MHz, for a peak bandwidth of 2.4 Gbytes/sec and a sustainable bandwidth of 1.6 Gbytes/sec.

The same centerplane is used in both systems.  Only the back half is used for modules in the 8200.


Covers on TLSB Modules


TLSB Module Overview
AlphaServer 8200/8400

TLSB Module Overview

Four types of modules are available for the TLSB system bus: processor, memory, and two types of I/O module that provide the interface from the TLSB to other I/O buses.

Each module has a molded cover on the right side of the module.  Each cover is specially molded to follow the shape of the modules components, to ensure proper cooling with swift, even airflow around the components.

Thus, if you remove the covers from a module, be sure that you put them back correctly.


DC-to-DC Converters

These converters step the 48 VDC power supplied by the power subsystem to the voltages required by the components on the processor board.


DIGAs

The four data interface gate arrays together assemble the 128-bit  incoming and 256-bit outgoing data from and to the TLSB.


ADG Gate Array

The address gate array contains the interface control logic for the CPU chips, the memory multiplexing gate array (MMG), the TLSB bus, and the data interface gate arrays (DIGAs).


MMG Gate Array

The MMG gate array multiplexes the addresses to and from the two CPU chips to the interface control chip (ADG).  In addition, the MMG supplies write data and is used to perform some Gbus addressing and sequencing functions.


B-cache

The backup cache on the module for each processor is a 4-Mbyte nonpipelined cache using 256Kx4 SRAMs.


CPU Chips

The DECchip 21164 operates at supercomputer speeds.   It is an Alpha architecture chip with super-pipelined micro-architecture.

The CPU controls two levels of on-chip caching and one level of off-chip caching.  The 8-Kbyte instruction cache and 2x8-Kbyte data cache are fed from the on-chip 96-Kbyte secondary cache.


KN7CC Processor Module


KN7CC Processor Module Overview
AlphaServer 8200/8400

KN7CC Processor Module Overview

The KN7CC processor module can have either one (KN7CC-AA) or two (KN7CC-AB) CPU chips.  At this time, the chips are the DECchip 21164 chips, with a cycle time of 300 MHz.  The red area shown in the figure is not populated on a uni-processor module.

NOTE:  A non-standard system self-test display may mean that the system clock card and the processor modules are not properly matched for timing.  The part number for the clock card synchronized to 300 MHz CPUs is  54-21728-05.

If one of the CPUs in a dual-CPU processor module is malfunctioning, you replace the entire module.  The chip is not a field-replaceable unit (FRU); the module is.  You will see indications of dual processors on the console display.

Click on the callouts in the figure for more detail.


DC-to_DC-Converter

This converter steps the 48 VDC power supplied by the power subsystem to the voltages required by the components on the memory board.


CTL Gate Array

The control address interface (CTL) gate array that provides the interface to the TLSB, controls DRAM timing and refresh, runs memory self-test, and contains TLSB and memory-specific registers.


Dust Cover

The dust cover that protects the connectors into which SIMMs can be plugged to upgrade the 128-Mbyte module to a 256-Mbyte module.


MDI Gate Arrays

Memory data interface (MDI) gate arrays that provide the data interface between the TLSB bus and the DRAM arrays.  The MDIs contain data buffers, ECC checking logic, self-test data generation and checking logic, and control and status registers (CSRs).


SIMM Array

The array of SIMMs in an MS7CCA-BA (128-Mbyte) memory module.


MS7CC Memory Module


MS7CC Memory Module Overview
AlphaServer 8200/8400

MS7CC Memory Module Overview

Up to 14 Gbytes of main memory can be configured on an AlphaServer 8400 system.  Up to seven memory modules can be installed on the system bus in the 8400, and up to three in the 8200 system.

All MS7CC memory modules for the AlphaServer 8400 and 8200 systems use SIMM technology.  SIMMs (single inline memory modules) are small cards mounted with DRAMs.  The cards are fixed to the larger memory module by spring-held mounting clips that grip both sides of the SIMM.

All types of SIMMs for all the memory modules available for AlphaServer 8400 and 8200 systems are field-replaceable.

The show simm command can isolate a problem SIMM.  When you replace a SIMM, you must be sure that the type of SIMM matches the module it is designed for, as shown in this table.

Click on the callouts in the figure for more detail.


Memory Modules and Related SIMMs

Memory (Size)	Motherboard Part Number	SIMM Part Number	Number of SIMMs
MS7CC-BA (128 MB)	E2035-AA	54-21724-01 (8 MB)	16
MS7CC-CA (256 MB)	E2035-AA	54-21724-01 (8 MB)	32
MS7CC-DA (512 MB)	E2035-AA	54-21726-01 (32 MB)	16
MS7CC-EA (1 GB)	E2035-AA	54-21726-01 (32 MB)	32
MS7CC-FA (2 GB)	E2036-AA	54-21718-01 (64 MB)	36


DC-to-DC Converter

A DC-to-DC converter that converts the 48 VDC system power to the  DC voltage required by the KFTHA module


ICC Chip

An I/O control chip (ICC) houses the primary control logic for the TLSB interface.


IDP Chips

Four I/O data path (IDP) chips, which together handle a 256-bit data transfer to or from the TLSB system bus.


HDP Chips

Four hose-to-data-path (HDP) chips, each handling 32 bits from two hoses (I/O cables connecting to an  adapter in an associated I/O bus).

 Data on the HDPs flow in one direction; either up (to the KFTHA) or down (to the I/O adapter).


RAM

RAM to buffer data for the DMA transfers.


KFTHA Module


KFTHA Module Overview
AlphaServer 8200/8400

KFTHA Module Overview

The KFTHA module is designed for high-speed, high-volume data transfers.

The KFTHA provides four channels to I/O subsystems.  On 8400 systems, the KFTHA can provide access to PCI, XMI, and Futurebus+ I/O systems.  The 8200 is designed to be used only with PCI I/O subsystems.

Direct memory access (DMA) transfers are pipelined to allow for up to 500 Mbytes/second throughput.

Click on the callouts in the figure for more detail.


NVRAM Option

NVRAM daughter card (part number DJ-ML300-BA).  A 4-Mbyte memory card that can enhance performance, increasing the memory available as buffer space for DMA (direct memory access) transmissions.


FDDI Options

If an FDDI option is installed on the KFTIA, one of the two types of connector shown here will be provided in this spot.  The two round connectors provide the in and out flow of a multimode fiber FDDI connection.  The plug connector provides a copper-wire (shorter length) FDDI connection.


Copper Wire FDDI

DEFPZ-UA daughter card.  A copper wire FDDI (fiber-distributed data interface) on-board logic card and its associated connector.  (Allows up to 100-m cabling in office-type LAN).


Multimode Fiber FDDI

DEFPZ-AA daughter card.  A multimode fiber FDDI (fiber-distributed data interface) on-board logic card and its associated connector.  (Allows up to 2 km local area network (LAN).


Hose Connector

One hose connector that can interface to an XMI, Futurebus+, or PCI/EISA bus.


Ethernet Connectors

Two Ethernet ports (802.3 twisted-pair)


SE Connector

One single-ended SCSI connector, reserved for the system load device.


FWD Connectors

Three FWD (fast wide differential) SCSI connectors, that, combined with Digital StorageWorks RAID controllers, storage cabinets, and devices,  offer access to large amounts of SCSI disk storage.


KFTIA Options


Front View of KFTIA Module


PIU Receptacles

VDC power is supplied to system plug-in unit housing through receptacles located on a crossbar of the PIU housing.


Blower Connection

This connection provides power to the system blower that cools the entire system.


TLSB Modules

Contain DC-to-DC converters that step the power down to the voltages required by the particular component.


Power Bus Bar

Delivers 48 VDC power to modules on the system bus.


Power Filter

Removes any noise disturbance on the 48V line.


Tclock

The clock module governs the signal frequency for the TLSB (bus cycle time).


CCL

The cabinet control logic (CCL) module contains logic that monitors signals from parts of the power system.


DC Distribution Box

Holds connector points for power distribution and a signal interface between CCL and regulators.  With three-phase power, also connector points for input from battery-backup units.


DC Power Regulators

Two kinds:

H7264 (shown)) converts single-phase AC power to 48 VDC.

H7263 regulator converts three-phase AC power to 48 VDC and also supplies information for console display.


AC Input Box

Accepts either single-phase or three-phase AC power input. Single-phase is shown.


KFTIA Module Overview
AlphaServer 8200/8400

KFTIA Module Overview

The KFTIA I/O module offers an internal PCI bus that is integrated  into the module itself, as well as a hose connector from the KFTIA to separate buses.

Several types of connectors reveal the I/O options accessible directly from the module.

•	Three FWD SCSI connectors

•	One single-ended (SE) SCSI connector

•	Two Ethernet connectors

•	Hose to PCI/EISA, XMI, or Futurebus+ I/O bus adapters.

Click on the callouts in the figure for an explanation of the standard connectors.

Three other options are available, which can be ordered and are field-installable as option cards.


8400 Power System Overview

1	AC Input Box. Accepts either single-phase or three-phase AC power input. Single-phase is shown.
2	DC Power Regulators.  Two kinds:  The H7264 (shown) converts single-phase AC power to 48 VDC. The H7263 regulator converts three-phase AC power to 48 VDC and also supplies information for console display.
3	DC Distribution Box.  Holds connector points for power distribution and a signal interface between CCL and regulators.  With three-phase power, also connector points for input from battery-backup units.
4	CCL.  The cabinet control logic (CCL) module contains logic that monitors signals from parts of the power system.
5	Tclock.  The clock module governs the signal frequency for the TLSB (bus cycle time).
6	Power filter. Removes any noise disturbance on the 48V line.
7	Power bus bar. Delivers 48 VDC power to modules on the system bus.
8	TLSB Modules. Contain DC-to-DC converters that step the power down to the voltages required by the particular component.
9	Blower connection.  This connection provides power to the system blower that cools the entire system.
10	PIU Receptacles.  48 VDC power is supplied to system plug-in unit housing through receptacles located on a crossbar of the PIU housing.


AlphaServer 8400 Power Subsystem Overview
AlphaServer 8200/8400

AlphaServer 8400 Power Overview

Click for a list describing these components, or click a callout on the illustration for information about the component.


PCI Power

The same type of clips and receptacles used for the StorageWorks shelves supply 48 VDC power to the PCI card cage.  A regulator inside the card cage converts the 48 VDC to the power used internally.


StorageWorks Power

As shown, 48 VDC power is supplied to the StorageWorks shelves mounted in the cabinet.  The power regulators convert the 48 VDC to the 12, 3, and 5 VDC power used by the StorageWorks I/O devices.


TLSB Modules

TLSB modules contain DC-to-DC converters that step the power down to the voltages required by the particular component.


Power Bus Bar

The power bus bar delivers 48 VDC power to modules on the system bus


Power Filter

The power filter removes any noise disturbance on the 48V line.


Clock Module

The clock module governs the signal frequency for the TLSB (bus cycle time).


CCL Module

The cabinet control logic (CCL) module monitors signals from parts of the power system and provides error information to the console software.  It is located behind the control panel


DC Distribution Connectors

The two DC distribution connectors in the front of the power regulator provide 48 VDC to the system.  LEDs signal the status of the regulator feeding these connectors


Power Regulators

Each power regulator contains an AC input, two 48 VDC outputs, and (optional) battery backup.


AC Input Box

Single-phase AC power enters the system here.  The front view shows one power regulator.   The rear view shows two, to illustrate how the AC power enters the power strip, and then is routed down to the two regulators.  Two regulators provide n+1 redundancy (that is, if one fails, the other will supply power).


AlphaServer 8200 Power Overview
AlphaServer 8200/8400

AlphaServer 8200 Power Overview

Click for a list describing these components, or click a callout on the illustration for information about the component.


8200 Power System Overview

1	Single-phase AC power enters the system here.  The front view shows one power regulator.   The rear view shows two, to illustrate how the AC power enters the power strip, and then is routed down to the two regulators.  Two regulators provide n+1 redundancy (that is, if one fails, the other will supply power).
2	Each power regulator contains an AC input, two 48 VDC outputs, and (optional) battery backup.
3	The two DC distribution connectors in the front of the power regulator provide 48 VDC to the system.  LEDs signal the status of the regulator feeding these connectors
4	The cabinet control logic (CCL) module monitors signals from parts of the power system and provides error information to the console software.  It is located behind the control panel.
5	The clock module governs the signal frequency for the TLSB (bus cycle time).
6	The power filter removes any noise disturbance on the 48V line.
7	The power bus bar delivers 48 VDC power to modules on the system bus.
8	TLSB Modules contain DC-to-DC converters that step the power down to the voltages required by the particular component.
9	As shown, 48 VDC power is supplied to the StorageWorks shelves mounted in the cabinet.  The power regulators convert the 48 VDC to the 12, 3, and 5 VDC power used by the StorageWorks I/O devices.
10	The same type of clips and receptacles used for the StorageWorks shelves supply 48 VDC power to the PCI card cage.  A regulator inside the card cage converts the 48 VDC to the power used internally.


Other Buses

An AlphaServer 8400 may contain XMI and Futurebus+ buses.  Each of these PIUs take two quadrants in a cabinet.


PCI Bus

A PCI/EISA bus provides connections to various storage devices.


StorageWorks Devices

Shelves can contain up to seven StorageWorks devices, including disks, tapes, power units, and DWZZAs (for FWD/SE conversion).


I/O and Storage Devices

The configurations of the AlphaServer 8200 and 8400 both allow PCI/EISA buses and StorageWorks shelves.

1	StorageWorks shelves are mounted horizontally in the 8200, and vertically in the 8400.  In the 8400, the shelves are mounted within plug-in units called PIUs. Shelves can contain up to seven  StorageWorks devices, including disks, tapes, power units, and DWZZAs (for FWD/SE conversion).
2	PCI/EISA buses are mounted horizontally on the 8200 and vertically in the 8400.  A PIU in the 8400 can contain two PCI/EISA buses, a PCI/EISA bus and a StorageWorks shelf (shown), or two StorageWorks shelves.
3	Other buses.  The AlphaServer 8400 cabinets can also contain XMI and Futurebus+ buses in PIUs.
Both systems can be connected to the I/O devices of their resident buses and adapters, but these are not housed within the cabinets themselves.

StorageWorks cabinets are also available that can hold RAID controllers and other options not available within the system cabinets


I/O Buses and In-Cab Storage Devices
AlphaServer 8200/8400

I/O Buses and In-Cab Storage Devices

Click for a list describing these components, or click a callout on the illustration for information about the component.


Typical Problems


Troubleshooting Tools


Troubleshooting Flowchart


Troubleshooting Steps and Tools
AlphaServer 8200/8400

Troubleshooting Steps and Tools

The system hardware, console software, and operating system software provide three types of troubleshooting tools for solving typical problems that occur at user sites: LEDs, the system self-test display, and the error log.

To start troubleshooting, you follow certain steps to isolate system problems.


Troubleshooting with LEDs
Troubleshooting AlphaServer 8200/8400

Troubleshooting with LEDs

This chapter tells how to use LED displays and other indicators to track down faulty components that you can replace in the AlphaServer 8200 and 8400 systems.

LEDs give status on the power subsystem, system bus (TLSB) modules (processor, memory, and I/O), and I/O buses and devices in shelves.  The cooling subsystem consists of fans in various locations and can be checked by looking and listening for the fans.

Where the systems are similar (TLSB bus and modules), the troubleshooting procedures described here apply to both.  Where they are different (power subsystem), details of troubleshooting vary.

The sections in this chapter are as follows:

Start with the Control Panel

Check the control panel lights.  The 8200 has three pushbuttons and three LEDs.  The 8400 has a keyswitch and three LEDs.

Troubleshooting TLSB Modules

You can check individual module self-test results by looking at the status LEDs on the modules.

Troubleshooting a PCI Shelf

LEDs show the status of the power supplies, as well as the adapter self-test results in the PCI shelf, mounted vertically in the AlphaServer 8400, horizontally in the AlphaServer 8200.

Troubleshooting StorageWorks Shelves

StorageWorks devices are mounted in shelves that are mounted horizontally in the 8200 system or expander cabinet.  In the 8400, a different StorageWorks shelf is mounted vertically in a PIU.  StorageWorks devices can also be mounted in separate StorageWorks cabinets.

Troubleshooting 8200 Power Regulators

The  8200 power regulators accept single-phase AC and produce 48 VDC power.

Troubleshooting 8200 Power System Cabling

If some component of the system is not working, or its LEDs are not lit, check the cabling to the device or component.

Troubleshooting the 8200 Cooling Subsystem

The cooling subsystem of the AlphaServer 8200 system consists of several fans.  One is located directly under the system bus, behind the control panel.  Others are located in the power regulators and in the individual PCI and I/O shelves.

Troubleshooting the 8400 AC Input Box

There are two kinds of AC input box for AlphaServer 8400 systems, depending on the type of  regulator used.

Troubleshooting the H7264 Power Regulators (8400)

An AlphaServer 8400 system may include one or two single-phase H7264 power regulators.  A second power regulator may be needed if power requirements demand it.  LEDs that display the status of each regulator can be seen through the front cover.

Troubleshooting the H7263 Power Regulators (8400)

The H7263 power regulators are located in the upper right front of the cabinet.  Each power regulator has a Run LED and a Fault LED.

Troubleshooting the Cabinet Control Logic (CCL) Module (8400)

LEDs on the cabinet control logic (CCL) module tell whether power is reaching the CCL module (top LED-yellow) and the four PIU quadrants in the bottom of the cabinet.

Troubleshooting the 8400 Blower

The blower is located in the center of the cabinet.  The blower spins up when you turn the keyswitch to Enable.

Troubleshooting XMI and Futurebus+ (8400)

Each XMI and Futurebus+ has two power regulators with LEDs and switches.

Troubleshooting with XMI and Futurebus+ I/O Module LEDs (8400)

Check the LEDs on the DWLMA adapter and clock card for the XMI bus, and on the DWLLA adapter for the Futurebus+.

Troubleshooting a DSSI PIU (8400)

Check the disk control panel.  The control panel has four indicator switches.


Troubleshooting: Start with the Control Panel
Troubleshooting AlphaServer 8200/8400

Start with the Control Panel LEDs


Control Panel


Step 1: The Control Panel
Fix Problem Identified

If a faulty component or firmware update was identified as the problem, replace the component or update the firmware.  If the problem has not yet been identified, go to Step 2.


Turn Power On and Watch Power-Up

As 48 VDC power is passed to the system, initial tests are run on the CPU, memory, and I/O adapters on the system.  If the system passes this power-up testing, the green Enable LED should light.

If it does not, look at the other control panel LEDs , or look at the console terminal display to pinpoint the failing module and replace the module.  Repeat this step.

(If there is no console display, the console terminal may be a TGA (graphics) terminal, connected through a PCI bus.  Connect a character-cell terminal through the serial port on the system cabinet.  Repeat this step.


Fault LED Is Lit

Some Component Failed System Self-Test

If Key On/Enable is green, Fault is lit, and system self-tests have completed, replace any failed component and proceed with Step 2.

The console terminal display is the easiest way to determine which component failed system self-test, if any. Failed components can be also be identified by examining other LEDs, beginning with TLSB module LEDs.

System Clock and CPU Are Not Synchronized

If Key On/Enable is green, Fault is lit, and system self-test did not complete, check to see if the system clock and the CPUs have different cycle times.  Replace as appropriate and proceed with Step 2.


No Control Panel LEDs Lit

Status LEDs are not receiving power or signals.  Check the power regulators to see if DC power is leaving the regulator.  If not, check the 8200 power subsystem LEDs or the 8400 power subsystem LEDs, as appropriate.

8400 systems with three-phase power also have the show power console command. If the console software is not working, but 48V power is being supplied to the system, you can type a control sequence command that displays an information packet on the console terminal.

If the power subsystem is OK, check the power and signal lines to the CCL module.  If connections seem OK, replace the 8200 CCL or  the  8400 CCL  and proceed with Step 2.

If there are still no lights on the control panel, replace the 8200 control panel or the 8400 control panel and proceed with Step 2.


Green LEDs Lit

This indicates that the system self-test passed (the Key On/Enable LED is lit) and that the operating system is running (Run is lit).

If both green LEDs are lit, and the operating system is running, the system is experiencing intermittent errors.  Check the error log.

Otherwise, if Run is not lit, ensure that the proper boot disk is selected to boot the operating system, and boot it.  When the operating system is running (Run is lit), look at the error log.


Control Panel LEDs at Power-Up

Action	Key On (8400) /Enable (8200)	Run	Fault
Set circuit breaker to On	Off	Off	Off
Press On button (8200) /Turn keyswitch to Enable (8400)	On	Off	Slow Blink
System self-test starts	On	Off	On
Modules pass self-test	On	Off	Off
Module fails self-test	On	Off	On
Three-phase power problem	On	Off	Blink
Operating system boots	On	On	Off


Troubleshooting TLSB Modules
Troubleshooting AlphaServer 8200/8400

LEDs on TLSB Modules


More About TLSB LEDs

In general, if a TLSB module's green LED is not lit, the module should be replaced.

Sometimes, you may need to replace a faulty component on a module, even though its green LED is lit.  It makes sense to do further checking on these types of modules:

Memory modules

KFTIA modules


Faulty SIMM(s) in Memory Module

Failure of the built-in self-test for the MS7CC modules indicates that no single 64-Kbyte segment of memory is usable.

Each 64-Kbyte segment must show at least 256 bad pages before it is noted as unusable.  However, it is possible for a SIMM to warrant replacement, even though the module as a whole passes its self-test.

You can find faulty SIMMs with the show simm console command.


KFTIA Option Cards

A KFTIA module may contain field-replaceable options that are faulty, even when the module has passed its self-test.

The PCI FDDI option and the PCI NVRAM cards can be replaced.

You can determine faulty KFTIA options with the show config console command.  (As far as the KFTIA is concerned, the show config command reveals the same information for either the 8200 or the 8400, so the jump here is to the 8200 description .)

If a show config reveals a failing KFTIA component other than a replaceable option, you may want to simply disconnect the I/O option that failed its own self-test, rather than bringing down the whole I/O operation handled by the KFTIA until a replacement module can be found.


Troubleshooting a PCI Shelf
Troubleshooting AlphaServer 8200/8400

Troubleshooting a PCI Shelf


PCI Shelf and Motherboard LEDs


Check Cabling to PCI Shelf

Check to make sure that the clip connectors providing 48 VDC power to the PCI shelf are engaged properly.  If so, proceed to Step 2.


Check 48V Power Supply

If the clips to the PCI shelf are in place, check the main 48 VDC power supply for either the 8200, the 8400 three-phase power subsystem, or the 8400 single-phase power subsystem.


Internal Power System Error

For an AlphaServer 8200 system, check fans.  Replace if not running.

For an AlphaServer 8400, check for jumper cable replacing fan connection.


Replace Power Board.

Replace the power board of the DWLPA.


Replace Motherboard

Replace the motherboard of the DWLPA


Hose Error

Some error has occurred in the protocol governing the transfer of data over the hose.  Replace the hose first, the motherboard, second, the  KFTHA or KFTIA third.


Troubleshooting StorageWorksShelves
Troubleshooting AlphaServer 8200/8400

Troubleshooting StorageWorks Shelves

The discussion here is limited to LEDs on StorageWorks components that are used in AlphaServer 8400 and 8200 systems.  Tables explain the meaning of LEDs on StorageWorks power supplies, supported storage devices, and the DWZZA-VA.


StorageWorks Shelves


SCSI Power Supply LEDs

Indicator LED	LED State	Meaning
Left (Top) Green LED	Off	Shelf fault
	On	Shelf OK
Right (Bottom) Green LED	Off	Power fault
	On	Power OK


SCSI Device LEDs

Indicator LED	LED State	Meaning
Left (Top) Green LED	Blinking	Data is being transferred to the device.
	Off	No data transfer to the device is taking place.
Right (Bottom) Yellow LED	Blinking	Data is being transferred from the device.
	Off	No data transfer from the device is taking place.


Troubleshooting the DWZZA-VA

Indicator LED	Meaning
None	If  the power supply LEDs are lit, but the device LEDs are not lit, check to see that the connecting cable is properly seated in the DWZZA-VA and, at the other end, in the FWD adapter.


Troubleshooting 8200 Power Regulators
Troubleshooting AlphaServer 8200

Troubleshooting 8200 Power Regulators


Power Regulators --AC Input Side


AC input cable to AC power strip.  (Used with two regulators.)


Power plugs and cables providing AC input to the individual regulators.


Circuit breakers on power strip.  Lower controls left plug.  Higher controls right two plugs.


Regulator circuit breaker.  (Use power strip breakers if there are two regulators.)


Check for breaker trip due to power surge.

Check to make sure no one has intentionally powered the system down.

If not, the breaker may have been tripped by an outside power surge or a short within the system.  Push the breaker switch(es) to On.

If the breaker does not trip off again, check if power has returned to other parts of the system.  Blower spins up?  System self-test completes OK and console prompt comes up?  If so, boot the operating system.  If not, continue with the DC side of the regulators.

If the breaker does trip to off again, check for a short circuit within the system.  Continue the search with the DC side of the regulators.


8200 DC Troubleshooting Steps


8200 Power Regulators -- DC Output Side


Check ambient temperature
Check ambient temperature.

If the room temperature is high, there may be a problem with the air conditioning unit or with airflow conditions in the lab.  Correct that problem and restart the system.  If Overtemp relights, proceed to Step 2.


Check to see if blowers are running.

If the ambient temperature is OK, then check to see if the blowers are running.  If not, then the 48 VDC output from the regulator has been shut off because the internal temperature of the regulator is too high.  The regulator is malfunctioning; replace the 8200 regulator.


Turn off AC power, wait 30 seconds, retry.

If this LED is lit, more than 48 VDC is beng output from the regulator.  Turn off the AC power, wait 30 seconds.  Turn on the AC breaker and power system up again.  If you do this several times and the Overvoltage LED relights, proceed to Step 4.


Disconnect the 48V lines leaving the regulator.

An Overvoltage condition could occur if there is a short in the lines leaving the regulator.  Turn off AC power and disconnect the cables from the leads at the DC side of the regulator, then turn on the AC breaker.

If the Overvoltage LED lights, the problem is the regulator.  Replace the 8200 regulator.

Otherwise, turn off the power and check the cabling for shorting.


Troubleshooting 8200 Power System Cabling
Troubleshooting AlphaServer 8200

Troubleshooting 8200 Power System Cabling


8200 Cabling Checkpoints


Check AC power connection(s)
Check AC power connection(s).

When there are two regulators, make sure that the main AC power cable is plugged into the power strip, and that the cables from the power strip to the regulators are plugged in properly.

NOTE:  Remember that the upper breaker controls the leftmost plug in the power strip, and that the lower breaker controls the rightmost two plugs in the power strip.  Thus, you would put one cable in the leftmost plug, and the other cable in either the middle or the right plug.  (Do NOT put both plugs in the middle and rightmost plugs.)


Check battery backup.

If the 8200 system has battery backup, check the LEDs on the DC side of the regulator to make sure it is functioning.


Check 48 VDC cables
Check 48 VDC cables.

Make sure that the 48 VDC cables are plugged into the outlets in the regulator(s).


Check connections to shelves.

Check the clip connectors in the PCI shelves and StorageWorks shelves.


Check all cabling possible.

Check the cables for broken insulation or cuts.

Cabling to the TLSB bus enters the control panel, goes beneath the bottom of the bus (see arrow in diagram), and reappears near the clock card at the back to supply power to the 48 VDC power bus bar on the centerplane.

If there appears to be a problem with the power supply to the bus, remove the front panel and check that power and signal connections are in order.

If new cable is needed, see the FRU list for the appropriate order number.


Troubleshooting the 8200 Cooling Subsystem
Troubleshooting AlphaServer 8200

Troubleshooting the 8200 Cooling Subsystem

The AlphaServer 8200 contains four different types of fans.

To test that the fans are working, hold a small slip of paper near the fan, or in the case of the SCSI shelves, near the front of the shelf.

If the paper is blown out or drawn in, the fan is working. If it remains stationary, the fan is not working.  (Don't let go of the paper, just hold it and see which way it is drawn.)


8200 Cooling Fan Locations


PSU Cooling Fan

This is the PSU (processor system unit) cooling fan.  It draws air down from the ventilated top of the system, through the TLSB bus and modules, and out the back of the system.  A paper placed at the back of the system near the main cooling fan will be blown outward.

NOTE:  Do not place anything on top of the system, as that will restrict airflow and may cause the modules to overheat.


Power Regulator Fans

The power regulators have fans at the DC output side of the regulator.  The OVERTEMP LED lights if these units overheat.  The fans draw air into the back and through the DC regulators, AC input, and battery backup (if present) components of the system.  Paper is drawn into the fan.


PCI Shelf Fans

The PCI shelf has two fans that blow air out, drawing air through the vented front of the shelf (where the adapters are).  Thus, paper placed near the fans on the PCI shelf are blown outward.


StorageWorks Shelf Fans

StorageWorks shelves used in the AlphaServer 8200 system have fans mounted in the back of the shelf that draw air inward.


Troubleshooting the 8400 AC Input Box
Troubleshooting AlphaServer 8400

Troubleshooting the 8400 AC Input Box


8400 AC Input Box


c
Check for breaker trip due to surge.

Check to make sure no one has intentionally powered the system down.  If not, the breaker may have been tripped by an outside power surge or a short within the system.  Push the breaker switch up.

If the breaker does not trip off again, check to see if power has returned to other parts of the system.  Blower spins up?  System self-test completes?  If so, boot the operating system.  If not, check the DC regulators.

If the breaker does trip to off again, check the fuses in the AC input box, and replace if needed,  If fuse blew on transient power surge, replacing the fuse will fix the problem.


Check for short within system.

After replacing the blown fuse or fuses,

Push the breaker switch up .

If power returns to other parts of the system,  boot the operating system at the console prompt after system self-test passes successfully.

If power does not return to other parts of the system, check for a short circuit within the system.  Continue the search with the DC regulators.


Troubleshooting H7264 Power Regulators
Troubleshooting AlphaServer 8400

Troubleshooting H7264 Power Regulators


H2764 Regulators and LEDs
H7264 Regulators and LEDs


Check room temperature.

If the room temperature is high, there may be a problem with the air conditioning unit or with airflow conditions in the data center.  Correct that problem and restart the system.  If the Overtemp LED lights again, proceed to Step 2.


Check to see if blower is running.

If the ambient room temperature is OK, then check to see if the blower is running.  If not, then the 48 VDC output from the regulator has been shut off because the internal temperature from the regulator is too high.  The regulator is malfunctioning.  Replace the H7264 regulator.


Turn off AC power, wait 30 seconds, retry.

If this LED is lit, more than 48 VDC is being output from the regulator.  Turn off the AC power, wait 30 seconds, turn on the AC breaker, and power up the system again.  If you do this several times, and the Overvoltage LED relights, proceed to Step 4.


Disconnect the 48V lines leaving the regulator.

An overvoltage condition could occur if there is a short in the lines leaving the regulator.

Turn off the AC breaker and disconnect the cables from the leads at the back of the regulator.

Turn on the AC breaker again.

If the Overvoltage LED lights, the problem is the regulator. Replace the H7264 regulator


Check the cabling

Turn off the power.

Check the cabling at all observable points for cuts or breaks in the insulation, lack of contact at connector points, and so forth.


Troubleshooting H7263 Power Regulators
Troubleshooting AlphaServer 8400

Troubleshooting H7263 Power Regulators


H7263 Power Regulators

Meaning of H7263 Regulator LEDs

Run (Green)	Fault (Yellow)	Condition
Off	Off	No AC power present
Off	On	Fatal fault
Fast flash	Off	AC power present. Keyswitch in Disable position.
On	Fast flash	Nonfatal fault
On	Slow flash	Battery discharge mode
On	Off	Normal operation


Check AC power supply


Check regulator(s)

If LEDs are off on one or more regulators, set the AC circuit breaker to off and then on to see if regulators respond.

If not, turn the power off, place the regulator in a different slot, and power on the system to see if the regulator responds.

If not, or if there is no room to try switching slots, turn the breaker off, remove the unlit regulators and replace one at a time.  Turn the breaker back on.  If the breaker trips, there is probably a short in the regulator.  Replace the regulator(s) that trip the breaker.


Fatal regulator fault

Power the system off and replace the  regulator.


Check CCL signal circuitry

When the keyswitch is not on Disable, but the green light is on fast flash and the yellow LED is off, something is wrong with the signal circuitry controlled by the CCL.

Check the cable from the DC distribution box to the CCL module.

Check the cable from the control panel to the CCL module.


Non-Fatal Faults

Nonfatal faults include:

	Internal heatsink temperature warning
	Power factor correction stage failed
	48V to CCL module exceeds specified limits
	Regulator/battery failed battery test.


Troubleshooting the Cabinet Control Logic (CCL) Module
Troubleshooting AlphaServer 8200/8400

Troubleshooting the Cabinet Control Logic (CCL) Module


Cabinet Contol Logic Module


Check AC power supply


Check DC Power Supply

H2764 (single-phase) Regulator(s)

H2763 (three-phase) Regulator(s)


Check cabling from regulators to CCL
Check cabling from regulators to CCL.

Check the ribbon cable and the connectors at the DC output location and at the CCL module.


Replace the CCL Module
Replace the CCL module.


Check PIU configuration
Check PIU configuration.

Check to see which quadrants are occupied, and with what.

A SCSI, DSSI, or PCI PIU should cause the LED to light.

For an XMI PIU, the quadrant occupied by the bulkhead half of the PIU should have its CCL LED lit.  The cage half of the PIU should not have its CCL LED lit.

If a quadrant is occupied, and its LED is not lit:

•	Check the blower-to-CCL cable.

•	Check the PIU-to-CCL cable.

•	Check to see that the PIU is seated properly in the cabinet.


CCL Power LED

During power sequencing, the CCL power LED (the top one; yellow when lit) goes on to indicate that power is present on the CCL module.


CCL PIU LED

A PIU LED goes on to indicate that a PIU is present in the quadrant and that its power regulators are enabled.


Troubleshooting the 8400 Blower
Troubleshooting AlphaServer 8400

Troubleshooting the 8400 Blower


Blower Power Plug


8400 Blower


Check AC power supply


Check DC regulators
Check DC power supply

H2764 (single-phase) Regulator(s)

H2763 (three-phase) Regulator(s)


Check cabling from regulators to blower

Check to make sure that the power plug from the DC power supply is seated in the blower's power receptacle.


Replace the blower.
Replace the blower

NOTE:  If the blower spins up but the control panel Fault LED blinks for more than 30 seconds, check the BLOWER OK signal cable.  If the signal cable is properly connected, then replace the CCL module.


Troubleshooting XMI and Futurebus+ (8400)
Troubleshooting AlphaServer 8400

Troubleshooting XMI and Futurebus+


XMI and Futurebus Power


Regulator B LEDs


Regulator A LEDs


Check connectors on the regulators

Check power (wires) and signals (ribbon cable) connectors located on the power regulators.


Check AC and DC power
Check Power

AC power supply

H7263 (3-phase) regulators

H7264 (single-phase) regulators


Check 48 VDC power where PIU connects

Check power outlet (with voltmeter) at PIU connection point (involves removing PIU or bulkhead half of XMI PIU).


Make sure ENABLE switch is down

Check ENABLE switch.  If up, switch to down.  If LEDs do not come on, proceed with Step 5.


Check signal cabling at reachable points

Check to see that the signal cabling is not torn or cut so as to expose signal wires.  If they are, replace the signal wires.  If not, proceed with Step 6.


Make sure clock card is in slot 7 of XMI

If the clock card is not in slot 7 of the XMI card cage, put it there.  (Slots are numbered from right to left, beginning with 0 on the right and proceeding left.


Replace that regulator.

Replace regulator A or regulator B, whichever's LED is off.


Regulator B Switches

Switch	Function
RESET	Momentary switch resets all LEDs on both regulators.
V-OUT DISABLE ENABLE	When the V-OUT (voltage output) switch is in the ENABLE position (down), power output for both regulators is enabled.   Power output is shut off  when this switch is in the DISABLE position (up).


A or B Regulator LEDs

LED	Color	State	Meaning
MOD OK	Green	On Off	Regulator is working Regulator is not working or V-OUT switch is set to DISABLE (down).
48V	Green	On	48V is present
OC1	Yellow	On	Overcurrent condition
OT1	Yellow	On	Overtemperature condition
OV1	Yellow	On	Overvoltage condition
1	The OC, OT, and OV LEDs are latching indicators.  Each LED indicates that a fault condition was or is present.  The condition may have been cleared, but the LED remains lit until it is reset.


Troubleshooting with XMI and Futurebus+ I/O Module LEDs (8400)
Troubleshooting AlphaServer 8400

Troubleshooting with XMI and Futurebus+ I/O Module LEDs


DWLMA LEDs

LED	Color	Self-Test Passes
STP (Self-test passed)	Yellow	On
DBGDIS (Debug disabled)	Green	On
POK (Power OK)	Green	On
FTLERR (Fatal error)	Red	Off
ES (Error Summary)	Red	Off
NOTE:  If the DWLMA adapter fails self-test, check the clock card at node 7 in the XMI card cage.  If the clock card fails testing (power LED is off), the DWLMA adapter will also fail.


Clock Card LED

The clock card, always at XMI node 7, has a yellow LED that lights to indicate that power is enabled in the XMI card cage.  The POWER ENABLE H signal is looped through the clock card so that the XMI power system cannot be enabled unless the clock card is properly installed.


DWLLA LEDs

Fault LED (Yellow)	Run LED (Green)	Meaning
Off	Off	No power to module.
Off	On	Passed self-test; is operational.
On	Off	Operational; fatal error detected.
On	On	Self-test in progress or, self-test failed.


Troubleshooting a DSSI PIU (8400)
Troubleshooting AlphaServer 8400

Troubleshooting a DSSI PIU (8400)


DSSI LEDs

Switch	Button	Light	Function
DC Pwr (Green)	Out In	On Off	DC power present. DC power not present.
Ready (Green)	In Out	On Off	Integrated storage element on-line. Integrated storage element off-line.
Wrt Prot (Yellow)	In Out	On Off	Write protection enabled. Write protection disabled.
Fault (Red)	Momentary	On Off	Fault condition Normal operation


Console Display and Diagnostics
Troubleshooting AlphaServer 8200/8400

Console Display and Diagnostics

Self-Test Console Display for 8200

The console display for an AlphaServer 8200 self-test gives information for the TLSB modules and the PCI buses in the system.

Show Config Display for 8200

The show configuration console command is useful to obtain more information about the system configuration, in case you need to replace a module.

Self-Test Console Display for 8400

An AlphaServer 8400 console display gives the results of system self-test.  It also shows the location of modules in the various buses, which can include XMI, Futurebus+, and PCI/EISA buses, memory interleaving, and hardware and firmware revision numbers.

Show Config Display for 8400

The show config console command is useful to obtain more information about the system configuration, in case you need to replace a module.

Running Diagnostics - the Test Command

The test command allows you to run diagnostics on the entire system, an I/O subsystem, a single module, a group of devices, or a single device.

Testing an Entire System

A test command with no modifiers runs all exercisers for subsystems and devices on the system.

Sample Test Command for PCI

Using the test command for a PCI shelf exercises the devices connected to the shelf.

Identifying a Failing SIMM

From the console, you can check for flawed or poorly seated SIMMs in memory boards.  This information is useful as a simple on-site check as part of a service call, and as a validation procedure after upgrading a memory, or adding or changing SIMMs for any reason.  Failing SIMMs are also reported in the error log.

Info Command

The info command provides information useful in debugging the system.  Some of the information it provides can be helpful in isolating FRUs in the field.

Show Power Display:  8400 Three-Phase Power

AlphaServer 8400 systems with three-phase power have available the show power command for troubleshooting.

Regulator Info Packets on Power Regulator Status:  8400 Three-Phase Power

When the console software is not working, but 48V power is being supplied to the system, you can obtain detailed information about the power system by typing a control sequence and data characters that cause a coded data packet to be displayed at the console terminal.

NOTE:  More information on the console commands can be found in the AlphaServer 8200/8400 Operations Manual.


Self-Test Console Display for 8200
Troubleshooting AlphaServer 8200

Self-Test Console Display for 8200

Click a hotspot in the example for an explanation of that line.

F   E   D   C   B   A   9   8   7   6   5   4   3   2   1   0  NODE #
                            A   M   .   .   P   .   .   .   .  TYP
                            o   +   .   .  ++   .   .   .   .  ST1
                            .   .   .   .  EB   .   .   .   .  BPD
                            o   +   .   .  ++   .   .   .   .  ST2
                            .   .   .   .  EB   .   .   .   .  BPD
                            +   +   .   .  ++   .   .   .   .  ST3
                            .   .   .   .  EB   .   .   .   .  BPD

                                +   +   +   +   +   +   +   +  C0 PCI+
                .   .   .   .   .   .   .   .   .   .   .   +  C1 PCI+
                                 .  .  .  .  .  +   .   .        EISA +

AlphaServer 8200 Console V1.0, SROM V1.0, Apr 2 1995  08:06:35

P08>>>


The first line lists the node numbers on the TLSB and other I/O buses.


This line indicates the type of module at each TLSB node.  Processors are type P, memories are type M, and the KFTHA and KFTIA adapter modules are type A.  In this example, one dual-processor module is at node 4, a memory is at node 7, and a KFTIA module is at node 8.


This line shows the results of individual processor and memory module tests.  Possible values are pass (+) or fail (-).  The "o" at node 8 (I/O module) indicates adapter testing has not been done yet.


BPD lines indicate "boot processor determination."  After testing individual processors (ST1 tests), the "+" processor with the lowest TLSB node number is selected as boot processor.  This process occurs again after ST2 and ST3 testing.  "B" indicates boot processor, "E" indicates the processor is enabled to become the boot processor,  and "D" indicates that a console command has been issued disabling the processor from the possibility of becoming the boot processor.


During the second round of tests (ST2), all tests are run to make sure that each CPU can send and receive data to and from memory (sometimes called CPU/MEM tests).  On line ST2, results are reported for each processor and memory; a plus sign (+) indicates that ST2 testing passed and a minus sign (-) that ST2 testing failed.


If the boot processor selected after ST1 testing fails these tests, another (with the next higher TLSB node number) is selected as boot processor.  The boot processor is again reported on the second BPD line.


During the third round of tests (ST3), all processors run multiprocessor tests, and then the KFTIA and KFTHA adapters are tested.  Notice that this line displays the results of the adapter testing.


If the boot processor had failed multiprocessor testing, the new boot processor selected would be displayed on this line.


A plus sign (+) at the right of the C0 PCI line means that the internal PCI bus on the KFTIA adapter passed its own self-test.  Self-test results for controllers on the KFTIA have also passed their internal self-tests as indicated by the plus signs at nodes 0 - 7.  See the illustration for the show config command to see which nodes are which, including the FDDI and NVRAM daughter cards, which are field replaceable (FRUs).


A plus sign (+) at the right of the C1 PCI line means that the PCI adapter on I/O channel 1 (connected to the hose of the KFTIA) passed self-test.  The adapter in the PCI shelf appears at node 0.  The explanation of the show config command shows which nodes are which, including the FDDI and NVRAM field-replaceable options.


Show Config Display for 8200
Troubleshooting AlphaServer 8200

Show Config Display for 8200

Click a hotspot in the example for an explanation of that line.

The illustration shows the connector (C0, C1, etc.) numbering scheme.  Each slot has four connector numbers associated with it, as shown.  A KFTIAs internal PCI bus will take the topmost number for a given slot, and its hose connector will take the next number.  The bottom two numbers are associated with the slot, even though nothing will ever occupy them on a KFTIA.  The KFTHA has four hose connectors, numbered in increasing order from top to bottom.

Show Config Display for 8200

P08>>> show config

         Name                                Type      Rev  Mnemonic
TLSB
4++      KN7CC-AB                            8014     0000  kn7cc-ab0
7+       MS7CC                               5000     0000  ms7cc0
8+       KFTIA                               2020     0000  kftia0

C0 Internal PCI connected to kftia0                         pci0
0+     ISP1020                           10201077     0001  isp00
1+     ISP1020                           10201077     0001  isp01
2+     DECchip 21040-AA                     21011     0023  tulip0
3+     DEC PCI FDDI                         F1011     0000  pfi0
4+     ISP1020                           10201077     0001  isp02
5+     ISP1020                           10201077     0001  isp03
6+     DECchip 21040-AA                     21011     0023  tulip1
7+     PCI NVRAM                            71011     0000  pci_nvram0

C1  PCI  connected to kftia0                                pci1
0+     SIO                                4828086     0003  sio0

  Controllers on SIO                                        sio0

0+     DECchip 21040-AA                    21011      0023  tulip2
1+     FLOPPY                                  2      0000  floppy0
2+     KBD                                     3      0000  kbd0
3+     MOUSE                                   4      0000  mouse0

  EISA connected to pci1 through sio0                       eisa0
3+     KFESB                              2EA310      0000  P08>>>


The first grouping shows the modules on the TLSB bus and their status.  In this example, the processor is in slot 4, as shown in the console display of system self-test.  A memory is at node 7, and a KFTIA at node 8.


C0 is next, showing the internal PCI bus on the KFTIA module.


At nodes 0, 1, 4, and 5 are the ISP1020 chips that handle the SCSI connections.  The single-ended connection is always node 5.


At nodes 2 and 6 are the Ethernet controllers.


Node 3 is the optional FDDI daughter card.


Node 7 is the optional PCI NVRAM daughter card.


This line shows the hose connection (C1) on the KFTIA adapter.


This is the KFE70 standard I/O PCI/EISA adapter option.


These lines show the controllers on the SIO module.


KFTIA and KFTHA modules can be placed in slots 8, 7, or 6.  Node 8 must contain a KFTIA or KFTHA node.  The hose numbers are assigned as follows.

Each slot has four numbers associated with it.  A KFTIAs internal PCI bus takes the topmost number for a given slot, and its hose connector takes the next number.  The bottom two numbers are associated with the slot, even though nothing ever occupies them.

The KFTHA has four hose connectors, numbered in increasing order from top to bottom.


Hose Numbering Scheme for KFTIA and KFTHA


Self-Test Console Display for 8400
Troubleshooting AlphaServer 8400

Self-Test Console Display for 8400

Click a hotspot in the example for an explanation of that line.

F  E   D   C   B   A   9   8   7   6   5   4   3   2   1   0  NODE #
                           A   A   M   M   .   .   P   P   P  TYP
                           o   o   +   -   .   .  .+  -+  ++  ST1
                           .   .   .   .   .   .  .E  EE  EB  BPD
                           o   o   +   -   .   .  .+  -+  ++  ST2
                           .   .   .   .   .   .  .E  EE  EB  BPD
                           +   +   +   -   .   .  .+  -+  ++  ST3
                           .   .   .   .   .   .  .E  EE  EB  BPD

    .   .   .   .   .   .   .   .   .   .   .   .   .   .     C0 FBUS-
    +   .   .   .   .   .   +   .   .   .   .   -   .   .     C1 XMI+
    .   .   .   .   .   .   .   .   .   .   .   .   .   .     C2
    .   .   .   .   .   .   .   .   .   .   .   .   .   .     C3

                    .   .   .   +   +   +   +   +   +   +   + C4 PCI+

                                                              C5

                                .  A1  A0   .   .   .   .   . ILV
                                . 256 256. .  .  .  .   .   . 512MB

AlphaServer 8400 Console V1.0, SROM V1.0, Apr 2 1995  08:06:35
P00>>>


The first line lists the node numbers on the TLSB and other I/O buses.


This line indicates the type of module at each TLSB node.  Processors are type P, memories are type M, and the KFTHA and KFTIA adapter modules are type A.  In this example, two dual-processor modules are at nodes 0 and 1, a single-processor module is at node 2, memories are at nodes 5 and 6, and the KFTHA and KFTIA modules are at nodes 7 and 8.


This line shows the results of individual processor and memory module tests.  Possible values are pass (+) or fail (-). The "o" at nodes 7 and 8  (I/O modules) indicate adapter testing has not been done yet.


BPD lines indicate boot processor determination.  After testing individual processors (ST1 tests), the + processor with the lowest TLSB node number is selected as boot processor.  This process occurs again after ST2 and ST3 testing.  B indicates boot processor, E indicates a processor that is enabled to become the boot processor, and D indicates that a console command has been issued disabling the processor from the possibility of becoming the boot processor.


During the second round of tests (ST2), all tests are run to make sure that each CPU can send and receive data to and from memory (sometimes called CPU/MEM tests).  Results are reported for each processor and memory; a plus sign (+) indicates that ST2 testing passed; a minus sign (-), ST2 testing failed.


If the boot processor selected after ST1 testing fails these tests, another (with the next-highest TLSB node number) is selected as boot processor.  The boot processor is again reported on the second BPD line.


During the third round of tests (ST3), all processors run multiprocessor tests, and then the KFTHA and KFTIA adapters are tested.  Notice that this line displays the results of the adapter testing.  (Both passed in this case.)


If the boot processor had failed multiprocessor testing, the new boot processor selected would be displayed on this line.


A minus sign (-) at the right of the C0 FBUS+ line means that the DWLLA adapter on I/O channel 0 failed self-test.  Self-test results for adapters on this I/O channel are thus not reported.   The + on the XMI line shows that the DWLMA adapter passed self-test; however, an adapter at node 3 failed on the XMI bus.


This line shows results for a KFTIA module, which shows as a PCI bus, because there is an internal PCI bus on the module.  All "nodes" on the KFTIA passed their internal self-test.  The explanation of the show config command shows which nodes are which, including the FDDI and NVRAM field-replaceable options.


Show Config Display for 8400
Troubleshooting AlphaServer 8400

Show Config Display for 8400

Click a hotspot in the example for an explanation of that line.

The illustration shows the connector (C0, C1, etc.) numbering scheme.  Each slot has four  numbers associated with it.  A KFTIAs internal PCI bus takes the topmost number for a given slot, and its hose connector takes the next number.  The bottom two numbers are associated with the slot, even though nothing with ever occupy them. The KFTHA has four hose connectors, numbered in increasing order from top to bottom.

Show Config Display for 8400

P00>>> sho config

        Name                        Type      Rev   Mnemonic
TLSB
0++     KN7CC-AB                    8014     0000   kn7cc-ab0
1-+     KN7CC-AB                    8014     0000   kn7cc-ab1
2+      KN7CC-AA                    8011     0000   kn7cc-aa0
5-      MS7CC                       5000     0000   ms7cc0
6+      MS7CC                       5000     0000   ms7cc1
7+      KFTIA                       2020     0000   kftia0
8+      KFTHA                       2000     0000   kftha0

C0 Futurebus -

C1 XMI +
3-      CIXCD                       C2F      0211   cixcd0
8+      DWLMA                       102A     0208   dwlma0
E+      KZMSA                       C36      5256   kzmsa0

C4 Internal PCI connected to kftia0                 pci0
0+    ISP1020                   10201077     0001   isp0
1+    ISP1020                   10201077     0001   isp1
2+    DECchip 21040-AA             21011     0023   tulip0
3+    DEC PCI FDDI                 F1011     0000   pfi0
4+    ISP1020                   10201077     0001   isp2
5+    ISP1020                   10201077     0001   isp3
6+    DECchip 21040-AA             21011     0023   tulip1
7+    PCI NVRAM                    71011     0000   pci_nvram0


The first grouping shows the modules on the TLSB bus and their status.  In this example, the three processors are in slots 0, 1, and 2, as shown in the console display of system self-test.  Note that the two-CPU modules have two status symbols.   The processor at slot 0, for which both CPUs passed self-test, has ++, the second, at slot 1, at which the first CPU failed, has -+.  Memory modules are at nodes 5 and 6.  A KFTHA adapter is at node 8, and a KFTIA at node 7.


The configuration listing continues with the adapters connected to (or a part of) the KFTHA (node 8) and KFTIA (node 7)  modules. The listing begins with node 8.  The C0 hose (top) on the KFTHA is connected to a Futurebus+.  Since the Futurebus DWLLA adapter failed self-test, no adapters are shown in the configuration for this bus.


The C1 hose (second from top) on the KFTHA is connected to an XMI bus.  Node 3, which was shown in the self-test listing as failing, is a CIXCD module.  Node E is a KZMSA module and as always, the DWLMA module is in node 8.  The C2 and C3 connectors are not used.


C4 is the internal PCI bus on the KFTIA module.


At nodes 0, 1, 4, and 5 are the ISP1020 chips that handle the SCSI connections.  The single-ended connection is always node 5.


At nodes 2 and 6 are the Ethernet controllers.


Node 3 has the optional FDDI daughter card.


Node 7 has the optional PCI NVRAM daughter card.


Running Diagnostics - the Test Command
Troubleshooting AlphaServer 8200/8400

Running Diagnostics - the Test Command

You enter the command test to test the entire system using exercisers resident in ROM on the boot processor module.  No module self-tests are executed when the test command is issued without a mnemonic.

When you specify a subsystem mnemonic or a device mnemonic with test such as test pci0 or test ms7cc0, self-tests are executed on the associated modules first and then the appropriate exercisers are run.

Sample Test Commands

P04>>> test                       # Tests the entire system.

                                  # Default run time is 10 minutes.

P04>>> t pci0 -t 60               # Tests all devices associated

                                  # with the PCI0 subsystem.  Test

                                  # Run time is 60 seconds.

P04>>> t xmi1                     # Tests all devices associated with

                                  # XMI1.

P04>>> t kzmsa*                   # Tests all KZMSA devices.

P04>>> t -q                       # Status messages will not be

                                  # displayed during system test.


Testing an Entire System
Troubleshooting AlphaServer 8200/8400

Testing an Entire System

P00>>> test

Console is in diagnostic mode

Complete Test Suite for runtime of 600 seconds

Type ^C to stop testing

Configuring system...

polling for units on kzmsa0, slot 9, bus 0, xmi0...

dkf0.0.0.9.8       DKF0                     RZ26L  440C

dkf200.2.0.9.8     DKF200                   RZ26L  440C

dkf300.3.0.9.8     DKF300                   RZ26L  440C

polling for units on tulip1, slot 5, bus 0, hose0...

ewb0.0.0.5.0: 08-00-2B-E2-11-0C

Shutting down units on tulip1, slot 5, bus 0 hose 0...

polling for units on tulip0, slot 12, bus 0, hose0...

ewa0.0.0.12.0: 08-00-2B-E2-8C-56

Shutting down units on tulip0, slot 12, bus 0 hose 0...

polling for units on tulip2, slot 2, bus 0, hose4...

ewc0.0.0.2.4: 08-00-2B-E4-66-97

Shutting down units on tulip2, slot 2, bus 0 hose 4...

polling for units on tulip3, slot 6, bus 0, hose4...

ewd0.0.0.6.4: 08-00-2B-E4-66-8A

Shutting down units on tulip3, slot 6, bus 0 hose 4...

polling for units on demna0, slot 3, bus 0, xmi0...

exa0.0.0.3.8: 08-00-2B-2A-76-44

Shutting down units on demna0, slot 3, bus 0 hose 8...

Starting network exerciser on ewb0.0.0.5.0 (id #377) in internal loopback mode

Starting network exerciser on ewa0.0.0.12.0 (id #38b) in internal loopback mode

Starting network exerciser on ewc0.0.0.2.4 (id #39f) in internal loopback mode

Starting network exerciser on ewd0.0.0.6.4 (id #3b3) in internal loopback mode

Starting network exerciser on exa0.0.0.3.8 (id #3c7) in internal loopback mode

Starting device exerciser on dkf0.0.0.9.8 (id #64e) in READ-ONLY mode

Stopping device exerciser on dkf0.0.0.9.8 (id #64e)

Starting device exerciser on dkf200.2.0.9.8 (id #8a8) in READ-ONLY mode

Stopping device exerciser on dkf200.2.0.9.8 (id #8a8)

Starting device exerciser on dkf300.3.0.9.8 (id #b09) in READ-ONLY mode

Stopping device exerciser on dkf300.3.0.9.8 (id #b09)

Starting device exerciser on dub18.0.0.11.8 (id #d63) in READ-ONLY mode

Stopping device exerciser on dub18.0.0.11.8 (id #d63)

Starting device exerciser on dkf0.0.0.9.8 (id #feb) in READ-ONLY mode

Stopping device exerciser on dkf0.0.0.9.8 (id #feb)

Starting device exerciser on dkf200.2.0.9.8 (id #1245) in READ-ONLY mode

Stopping device exerciser on dkf200.2.0.9.8 (id #1245)

Starting device exerciser on dkf300.3.0.9.8 (id #14a8) in READ-ONLY mode

Stopping device exerciser on dkf300.3.0.9.8 (id #14a8)

Starting device exerciser on dub18.0.0.11.8 (id #1702) in READ-ONLY mode

Stopping device exerciser on dub18.0.0.11.8 (id #1702)

Starting device exerciser on dkf0.0.0.9.8 (id #1989) in READ-ONLY mode

Stopping device exerciser on dkf0.0.0.9.8 (id #1989)

Starting device exerciser on dkf200.2.0.9.8 (id #1be5) in READ-ONLY mode

Stopping device exerciser on dkf200.2.0.9.8 (id #1be5)

Starting device exerciser on dkf300.3.0.9.8 (id #1e45) in READ-ONLY mode

Stopping device exerciser on dkf300.3.0.9.8 (id #1e45)

Starting device exerciser on dub18.0.0.11.8 (id #209f) in READ-ONLY mode

Stopping device exerciser on dub18.0.0.11.8 (id #209f)

Starting device exerciser on dkf0.0.0.9.8 (id #2328) in READ-ONLY mode

Stopping device exerciser on dkf0.0.0.9.8 (id #2328)

Starting device exerciser on dkf200.2.0.9.8 (id #2582) in READ-ONLY mode

Stopping device exerciser on dkf200.2.0.9.8 (id #2582)

Starting device exerciser on dkf300.3.0.9.8 (id #27e2) in READ-ONLY mode

Stopping device exerciser on dkf300.3.0.9.8 (id #27e2)

Stopping all testing

Stopping network exerciser on ewb0.0.0.5.0 (id #377)

Stopping network exerciser on ewa0.0.0.12.0 (id #38b)

Stopping network exerciser on ewc0.0.0.2.4 (id #39f)

Stopping network exerciser on ewd0.0.0.6.4 (id #3b3)

Stopping network exerciser on exa0.0.0.3.8 (id #3c7)

 ---------Testing done ------------

Shutting down drivers...

Shutting down units on demna0, slot 3, bus 0, hose 8...

Shutting down units on kzmsa0, slot 9, bus 0, hose 8...

Shutting down units on tulip2, slot 2, bus 0, hose 4...

Shutting down units on tulip3, slot 6, bus 0, hose 4...

Shutting down units on tulip0, slot 12, bus 0, hose 0...

Shutting down units on tulip1, slot 5, bus 0, hose 0...

P00>>>


Sample Test Command for PCI
Troubleshooting AlphaServer 8200/8400

Sample Test Command for PCI

P08>>> test pci -t 200

Console is in diagnostic mode

PCI subsystem test selected for runtime of 200 seconds

Type Ctrl/C to stop testing

Configuring tulip0

ewa0.0.0.12.3: 08-00-2B-E2-8C-4D

Shutting down units on tulip0, slot 12, bus 0 hose 3...

Configuring tulip1

ewb0.0.0.2.4: 08-00-2B-E2-B8-44

Shutting down units on tulip1, slot 2, bus 0 hose 4...

Configuring tulip2

ewc0.0.0.6.4: 08-00-2B-E2-B8-45

Shutting down units on tulip2, slot 6, bus 0 hose 4...

Starting network exerciser on ewa0.0.0.12.3 (id #645) in internal loopback mode

Starting network exerciser on ewb0.0.0.2.4 (id #66e) in internal loopback mode

Starting network exerciser on ewc0.0.0.6.4 (id #697) in internal loopback mode

Configuring kfesb0

KFESB is not of required revision

  Device start:

Configuring kfesb1

duc0.0.0.1004.3    R2WUIC$DIA0               RF72

duc5.5.0.1004.3    RF3111$DIA5               RF31

Configuring isp0

Configuring isp1

Configuring isp2

Configuring isp3

Configuring isp4

Configuring isp5

dkh100.1.0.5.4     DKH100                   RZ26L  440C

dkh200.2.0.5.4     DKH200                   RZ26L  440C

dkh300.3.0.5.4     DKH300                   RZ26L  440C

Starting device exerciser on dkh100.1.0.5.4 (id #89e) in READ-ONLY mode

Stopping device exerciser on dkh100.1.0.5.4 (id #89e)

Starting device exerciser on dkh200.2.0.5.4 (id #95a) in READ-ONLY mode

Stopping device exerciser on dkh200.2.0.5.4 (id #95a)

Starting device exerciser on dkh300.3.0.5.4 (id #9c1) in READ-ONLY mode

Stopping device exerciser on dkh300.3.0.5.4 (id #9c1)

Starting device exerciser on duc0.0.0.1004.3 (id #a30) in READ-ONLY mode

Stopping device exerciser on duc0.0.0.1004.3 (id #a30)

Starting device exerciser on duc5.5.0.1004.3 (id #b83) in READ-ONLY mode

Stopping device exerciser on duc5.5.0.1004.3 (id #b83)

Starting device exerciser on dkh100.1.0.5.4 (id #c9a) in READ-ONLY mode

Stopping device exerciser on dkh100.1.0.5.4 (id #c9a)

Starting device exerciser on dkh200.2.0.5.4 (id #d01) in READ-ONLY mode

Stopping device exerciser on dkh200.2.0.5.4 (id #d01)

Starting device exerciser on dkh300.3.0.5.4 (id #d70) in READ-ONLY mode

Stopping device exerciser on dkh300.3.0.5.4 (id #d70)

Starting device exerciser on duc0.0.0.1004.3 (id #dd4) in READ-ONLY mode

Stopping device exerciser on duc0.0.0.1004.3 (id #dd4)

Starting device exerciser on duc5.5.0.1004.3 (id #f25) in READ-ONLY mode

Time has expired...

Stopping all testing

Stopping device exerciser on duc5.5.0.1004.3 (id #f25)

Stopping network exerciser on ewc0.0.0.6.4 (id #697)

Stopping network exerciser on ewa0.0.0.12.3 (id #645)

Stopping network exerciser on ewb0.0.0.2.4 (id #66e)

 ---------Testing done ------------

 Shutting down drivers...

Shutting down units on isp2, slot 0, bus 0, hose 4...

Shutting down units on isp3, slot 1, bus 0, hose 4...

Shutting down units on tulip1, slot 2, bus 0, hose 4...

Shutting down units on isp4, slot 4, bus 0, hose 4...

Shutting down units on isp5, slot 5, bus 0, hose 4...

Shutting down units on tulip2, slot 6, bus 0, hose 4...

Shutting down units on tulip0, slot 12, bus 0, hose 3...

Shutting down units on kfesb0, slot 2, bus 1, hose 3...

Shutting down units on kfesb1, slot 4, bus 1, hose 3...

Shutting down units on isp0, slot 7, bus 0, hose 3...

Shutting down units on isp1, slot 8, bus 0, hose 3...

P00>>>


Identifying a Failing SIMM
Troubleshooting AlphaServer 8200/8400

Identifying a Failing SIMM

Example with no failures

Example with SIMM failures


Console Mode:  No Failing SIMMs

P00>>> set simm_callout on

P00>>> init

Initializing...

 WARNING: SIMM_CALLOUT environment variable is ON

F   E   D   C   B   A   9   8   7   6   5   4   3   2   1   0   NODE #

                            A   .   .   .   .   .   M   M   P   TYP

                            o   .   .   .   .   .   +   +  ++   ST1

                            .   .   .   .   .   .   .   .  EB   BPD

                            o   .   .   .   .   .   +   +  ++   ST2

                            .   .   .   .   .   .   .   .  EB   BPD

                            +   .   .   .   .   .   +   +  ++   ST3

                            .   .   .   .   .   .   .   .  EB   BPD

    +   +   +   .   +   .   +   .   .   .   +   .   +   .       C0 XMI +

.   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   C1

.   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   C2

.   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   C3

                            .   .   .   .   .   .  A1  A0   .   ILV

                            .   .   .   .   .   . 256 256   .   512MB

AlphaServer 8400 Console V1.0, SROM V1.0, May 5 1995 03:38:06

P00>>> show simm

No selftest errors found on any memory modules!

P00>>> set simm_callout off

P00>>> init

Initializing...


The set simm_callout on command sets an internal environment variable that enables code that isolates failing SIMMs during memory testing.  With this variable enabled, system self-test can take up to 40 seconds longer if a faulty SIMM is present.


The init command initializes the system and displays the results of self-test.


This line in the console display notes that the SIMM callout environment variable is on.


The show simm command requests a display of faulty SIMMs.


No faulty SIMMS were found.


The set simm callout off command turns off the environment variable that enabled callout of faulty SIMMs.


The init command initializes the system in normal mode.


Console Mode:  Failing SIMMs Found

P00>>> set simm_callout on

P00>>> init

Initializing...

 WARNING: SIMM_CALLOUT environment variable is ON

F   E   D   C   B   A   9   8   7   6   5   4   3   2   1   0   NODE #

                            A   .   .   .   .   .   M   M   P   TYP

                            o   .   .   .   .   .   +   +  ++   ST1

                            .   .   .   .   .   .   .   .  EB   BPD

                            o   .   .   .   .   .   +   +  ++   ST2

                            .   .   .   .   .   .   .   .  EB   BPD

                            +   .   .   .   .   .   +   +  ++   ST3

                            .   .   .   .   .   .   .   .  EB   BPD

    +   +   +   .   +   .   +   .   .   .   +   .   +   .       C0 XMI +

.   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   C1

.   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   C2

.   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   C3

                            .   .   .   .   .   .  A1  A0   .   ILV

                            .   .   .   .   .   . 256 256   .   512MB

AlphaServer 8400 Console V1.0, SROM V1.0, May 5 1995 03:38:06

P01>>> show simm

The following SIMMs are faulty on memory module in slot 1:

J30   J31

See also

SIMM Removal and Replacement


The show simm command requests a display of faulty SIMMs.


SIMMs numbered J30 and J31 on the memory module in slot 1 are found to be faulty.


Info Command
Troubleshooting AlphaServer 8200/8400

Info Command

P04>>> info

        0.  About the console

        1.  Bitmap

        2.  PAL symbols

        3.  IMPURE area (abbreviated)

        4.  IMPURE area (full)

        5.  TLSB Registers

        6.  GBUS

        7.  LOGOUT area

        8.  Per Cpu HWRPB areas

        9.  LAMB registers

        10.  TLSB register addresses

        11.  Page Tables

        12.  FRU table

        13.  Console internals

        14.  Supported Devices

        15.  Console SCB

        16.  PCIA

Enter selection: 5

              Node0    Node2    Node7    Node8

              MS7CC    KN7CC-AB KFTIA    KFTHA

base adr    88000000 88800000 89c00000 8a000000

TLDEV       00005000 00008014 00002020 00002000

TLBER       00100000 00800000 00000000 00000000

TLCNR       000fc200 00000220 00000170 00000180

TLVID       00000080 00000054

TLMMR0               00008014 80000010 80000010

TLMMR1               00008014 00000000 00000000

TLMMR2               00008014 00000000 00000000

TLMMR3               00008014 00000000 00000000

TLMMR4               00008014 00000000 00000000

TLMMR5               00008014 00000000 00000000

TLMMR6               00008014 00000000 00000000

TLMMR7               00008014 00000000 00000000

TLFADR0     0011ab00          00000000 00000000

TLFADR1     07050000          00000000 00000000

TLESR0      00000303 00400303 00000000 00000000

TLESR1      00000c0c 00400c0c 00000000 00000000

TLESR2      00006060 00406060 00000000 00000000

TLESR3      00009090 00409090 00000000 00000000

TLILID0                       00000000 00000000

              Node0    Node2    Node7    Node8

              MS7CC    KN7CC-AB KFTIA    KFTHA

TLILID1                       00000000 00000000

TLILID2                       00000000 00000000

TLILID3                       00000000 00000000

TLCPUMASK                     00000010 00000010

                   .

                   .

                   .

P04>>> info 5 | grep TLBER

TLBER       00100000 00800000 00000000 00000000

P04>>> info 5 | grep TLMMR*

TLMMR0               00008014 80000010 80000010

TLMMR1               00008014 00000000 00000000

TLMMR2               00008014 00000000 00000000

TLMMR3               00008014 00000000 00000000

TLMMR4               00008014 00000000 00000000

TLMMR5               00008014 00000000 00000000

TLMMR6               00008014 00000000 00000000

TLMMR7               00008014 00000000 00000000

P04>>>


The info command lists options available.  (This list may change).


The bitmap, HWRPB, and FRU table options only provide relevant information after the operating system has been running and halted with Ctrl/P to return to console mode.


The user enters the selection 5 for a listing of TLSB registers.


The listing of bus registers continues for several pages; this is only the first page and a half, to show that bus registers for all the modules are listed.


The console commands allow the UNIX concept of  piping.  Here, an info command requesting a listing of TLSB registers is piped into a UNIX grep command, which prints all lines produced by the info 5 that contain TLBER.


This is another example of UNIX-type piping, showing the grep command with a wildcard (*), in which all lines produced by the info 5 command beginning with TLMMR are printed.


Show Power Display:  8400 Three-Phase Power
Troubleshooting AlphaServer 8400

Show Power Display:  8400 Three-Phase Power

The show power command can be used to display the power status of 8400 systems with three-phase power.  The cabinet contains three power regulators.  If the cabinet has fewer than three regulators, the appropriate column (A, B, or C) is left blank.  The bottom three lines of output, showing PIU power status, apply only to the main cabinet.

P00>>> show power

Cabinet:  Main              Regulator:     A          B          C

-----------------------------------------------------------------------

        Primary Micro Firmware Rev:     2.0        2.0         2.0

      Secondary Micro Firmware Rev:     2.0        2.0         2.0

                Power Supply State:   NORMAL     NORMAL      NORMAL

           AC Line Voltage (V RMS):   113.71     114.35      115.93

             DC Bulk Voltage (VDC):   227.02     227.02      227.02

          48V DC Bus Voltage (VDC):    47.57      47.57       47.57

          48V DC Bus Voltage (ADC):    30.17      29.68       29.58

    48V Battery Pack Voltage (VDC):    50.85      50.72       47.91

    24V Battery Pack Voltage (VDC):    25.56      25.56       23.95

 Battery Pack Charge Current (IDC):     2.91       2.90        0

    Ambient Temperature (Degree C):    26.22      24.80       24.75

              Elapsed Time (Hours):   290.00     290.00      290.00

Remaining Battery Capacity (Minutes):   8.00       8.00        8.00

   Battery Cutoff Counter (Cycles):     0          1.00        1.00

           Battery Configuration:  4 Batteries  4 Batteries  4 Batteries

                   Heatsink Status:  NORMAL      NORMAL      NORMAL

               Battery Pack Status:  CHARGING    CHARGING    DISCHGG

              Last UPS Test Status:  PASSED      PASSED      TESTING

LDC POWER Status      :  OK

PIU Primary Status    :  OK

PIU Secondary Status  :  OK


Regulator Info Packets: 8400 Three-Phase Power
Troubleshooting AlphaServer 8400

Regulator Info Packets: 8400 Three-Phase Power

When the console software is not working, but 48V power is being supplied to the system, you can obtain detailed information about the power system from data packets.

To enter a command at the console terminal:

1	Type Ctrl/B two times.

2	Type the one-letter command.

3	Type the power regulator identification letter.

4	Type Ctrl/M to terminate the packet.

Command Format

Data Packets

Full information data packet

Brief data packet


Power Regulator Identification

A	Regulator A
B	Regulator B
C	Regulator C


Regulator Info Packet Commands

S	Full current status (returns full information data packet)
H	Saved status (returns full information data packet)
B	Brief status (returns brief data packet)
T	5-second battery test
D	Deep discharge test
A	Abort test
F	4 batteries
E	8 batteries


Brief Data Packet
Troubleshooting AlphaServer 8400

Brief Data Packet

The B command packet returns a nine-character summary of power status. The character format is 8 bits, no parity, with one stop bit.  The baud rate is 9600.

Brief Data Packet Structure

Sample Brief Data Packet


Full Information Data Packet
Troubleshooting AlphaServer 8400

Full Information Data Packet

The S or H command packet returns a 54-character stream of power information. Click in a field or its name to see the definition.

Full Information Data Packet Structure

Sample Full/History Data Packet

The table lists the meaning of each value in this example of a full/history data packet.


Full Data Packet: Characters 1 - 6


Full Data Packet: Characters 7 - 34


Full Data Packet: Characters 35 - 47


Full Data Packet: Characters 48 - 54


Explanation of Sample Full/History Data Packet

Character	Value	Information
1	A	Data packet from power regulator A
2	L	30-33796-01
3-4	21	Secondary master firmware revision 2.1
5-6	21	Secondary slave firmware revision 2.1
7-10	0665	Peak AC line voltage = 149 volts
11-14	0513	DC bulk voltage = 227 volts
15-18	0795	48 VDC bus voltage = 46.6 volts
19-22	0921	48 VDC bus current = 45.0 amps
23-26	0750	48V battery pack voltage = 51.3 volts
27-30	0754	24V battery  pack voltage = 25.8 volts
31-34	0597	Battery pack discharge current = 2.92 amps
35-38	0696	Ambient temperature = 34.0 degrees Celsius
39-42	0007	Elapsed run time = 70 hours
43-44	08	Remaining battery capacity = 8 minutes
45-46	000	Battery cutoff = 0 cycles
47-48	F	Configured for four batteries
49	0	Heatsink temperature within range
50	+	Battery pack charging
51	P	Last battery pack test completed successfully
52	0	Normal operation
53-54	B5	Checksum value


DECevent Error Log
Troubleshooting AlphaServer 8200/8400

DECevent Error Log and Parse Trees

Brief Description of the TLSB Bus

The error log entries discussed here are specific to AlphaServer 8200 and 8400 systems.  Most of the errors occur during the transmission of commands or data along the TLSB system bus or in buses or storage internal to a particular module.

Producing an Error Log with DECevent

The DECevent utility is available for both Digital UNIX and OpenVMS operating systems to help diagnose what are called intermittent errors.  These errors may or may not cause the operating system to crash.

Getting a Summary Error Log

Running DECevent with the /summary qualifier is a good way to start analyzing the error log.  It gives you a table of contents for the error log.

Supported Event Types

The events that DECevent logs for AlphaServer 8200 and 8400 systems can be logged by the CPU modules or one of the TLSB or subsidiary bus I/O adapters.  (Memory errors are logged by the CPU.)

Machine Check 660 Error

You can identify problem FRUs in an error log entry by checking the contents of the registers against the parse trees.

Machine Check 620 Error

Machine check 620 errors are nearly always soft errors; that is, they do not cause the system to crash.  Correctable write data errors (CWDE) on CSR writes are the exception.

DWLPA Motherboard (PCIA) Adapter Error Log

Registers on the DWLPA motherboard are printed in the error log when one of these errors occur.  You use the parse tree for the DWLPA motherboard to determine the most likely FRU.

Parse Trees

Use the contents of the registers shown in the error log to follow the branches of the parse tree until you find a match.  The box at the end of the branch identifies the FRU most likely responsible for the error.  FRUs are listed in order of decreasing probability.

Machine Check 670 Parse Tree

Machine check 670 errors always cause the system to crash.  They are errors that occur in the transfer of data between caches internal to a CPU chip or the B-cache on a particular processor module.

The DECevent bit-to-text listing prints contents of registers that can be used to identify what component on a particular CPU module failed.  To identify a FRU to be replaced, however, all you need to do is look at the WHAMI (who am I) register to identify the faulty CPU module.  (Note that the WHAMI register is described in the 8200/8400 System Technical Manual  under its full name as the GBUS$WHAMI register.)

Machine Check 660 Parse Tree

Most machine check 660 errors are system-specific (inside the system, but outside the CPU chip)  fatal errors.

Machine Check 630 Parse Tree

Machine check 630 errors are soft errors; all are ECC errors in the B-cache on the chip.  All other ECC errors are reported in 620 error entries.

Machine Check 620 Parse Tree

Machine check 620 errors are all ECC errors outside the CPU chip or B-cache.

Adapter Parse Trees

I/O bus adapters have their own error registers and corresponding parse trees:

KFTxA Error Parse Tree

DWLPA Error Parse Tree

DWLMA Error Parse Tree


Brief Description of the TLSB Bus
Troubleshooting AlphaServer 8200/8400

Brief Description of the TLSB Bus

To understand some of the terms used in the error log, you should understand how data is transferred on the TLSB system bus.  The System Technical Manual  gives this information in detail.  This section gives an overview of the system bus.

The TLSB has two separate buses: a command/address bus and a data bus.   Thus, errors can refer to transmissions on either of these buses.

A node that initiates a transaction is called a commander node.  The node that responds to the command issued by the commander is called the slave node.  CPUs or I/O nodes are always the commander on memory transactions and can be either the commander or the slave on CSR (control and status register) transactions.  Memory nodes are never commander nodes.

Command/Address Bus

The table lists the eight address bus commands.

Data Bus

The TLSB transfers data in the sequence order that valid address bus commands are issued.  In addition to 256 bits of data, the data bus contains associated ECC bits and some control signals.  Three signals are of particular significance in read and write operations.

TLSB_SHARED

When a request is made to access memory, each CPU notes whether that block of memory is currently resident in its cache, and, if so, asserts a signal that the data is shared.  Thus, when the slave responds with the data, it asserts the TLSB_SHARED signal on the data bus, so that CPU nodes can take note and make sure that the block being accessed remains valid in the CPUs cache.  This signal is valid when driven in response to Read, Read Bank Lock, Write, and Write Bank Unlock commands.

TLSB_DIRTY

This signal is used to indicate that the block being accessed is valid in a CPU cache, and that the copy there is more recent than the copy in memory.  TLSB_DIRTY is guaranteed to be valid in response to Read and Read Bank Lock commands.

TLSB_STACHK

This signal is asserted whenever TLSB_SHARED or TLSB_DIRTY is asserted, to ensure that, should an error occur in transmission or reception of either one of these signals, it can be detected.  For example, if TLSB_SHARED or TLSB_DIRTY is asserted, but TLSB_STACHK is not, there is an error.  Or, if TLSB_STACHK is asserted and TLSB_SHARED or TLSB_DIRTY is not, there is also an error.

Error Checking

The TLSB is designed to implement error detection and, where possible, error correction. The TLSB uses parity protection on the address bus.  The data bus is protected by ECC (error correction code).  Protocol sequence checking is used on the control signals across both buses.  Cache coherency is monitored with the use of the TLSB_SHARED and TLSB_DIRTY signals described above.

PALcode collects error information from module control and status registers and formats it into a logout frame that is passed to the operating system, which uses the information to determine the action to take on the error.  Some errors are fatal; they can cause the entire system or a specific process to fail.  Other errors can be corrected and do not halt processing.  The operating system writes the error information as an entry in a binary file that can then be used by the DECevent bit-to-text translator to produce an error log.


TLSB Address Bus Commands

TLSB CMD <2:0>	Command	Description
000	No-op	Device that won arbitration nulled the command
001	Victim	Victim
010	Read	Read memory
011	Write	Memory write or write update
100	Read Bank Lock	Read memory bank, lock
101	Write Bank Unlock	Write memory bank, unlock
110	CSR Read	Read CSR data
111	CSR Write	Write CSR data


Producing an Error Log with DECevent
Troubleshooting AlphaServer 8200/8400

Producing an Error Log with DECevent

In this example, the error log information is directed to a file called errlog.dat.  If the /output qualifier is not used, the error log information is displayed on the screen of the console terminal.

$  diagnose/output=errlog.dat

DECevent Version T1.1


Getting a Summary Error Log
Troubleshooting AlphaServer 8200/8400

Getting a Summary Error Log

$  diagnose/summary

SUMMARY OF ALL ENTRIES LOGGED ON NODE CLYP01

     unknown major class

       New errorlog created                  1.

       Timestamp                             3.

       Machine check (670 entry)             7.

       Crash Re-start                        2.

       XMI                                   6.

       System startup                        3.

       Volume mount                          3.

       Adapter Error                         4.

       Soft ECC error                        1.


Supported Event Types
Troubleshooting AlphaServer 8200/8400

Supported Event Types

Examples show a Digital UNIX entry for a 670-type machine check and an OpenVMS 620 error entry for a CRD (corrected read data) error.  The boxes enclose the area that identifies the event type.

Event Types	Description
Machine check 670	670 processor checks
Machine check 660	660 system machine checks
630 error interrupts	B-cache correctable 630 interrupts
620 errors	620 correctable system errors
Extended CRD	Memory single-bit error footprints
Adapter	Adapter is logging entity.  Adapters include the KFTxA module, DWLPA motherboard, DWLMA, and DWLLA.


OSF Event Type Identification

************************** ENTRY    1 ************************

Logging OS                        2. OSF/1

System Architecture               2. AXP

Event sequence number             1.

Timestamp of occurrence              23-JAN-1995 13:57:19

Host name                            clyp01

AXP HW model                         AlphaServer 8200

Number of CPUs (mpnum)    x00000002

CPU logging event (mperr) x00000006

Event validity                    1. Valid

Entry type                      100. CPU Machine Check Errors

CPU Minor class                  1.  Machine check (670 entry)

Event severity                    1. Severe Priority


OpenVMS Event Type Identification

**************************** ENTRY  124 ************************

Logging OS                        1. OpenVMS

System Architecture               2. AXP

OS version                           X5WW-FT2

Event sequence number           102.

Timestamp of occurrence              16-MAR-1995 08:14:12

System uptime in seconds      53886.

Flags                         x0000

Host name                            CLYP01

AXP HW model                         AlphaServer 8400

Unique CPU ID             x00000005

Entry type                      14.  11/790 CRD log

Memory Minor class               2   CRD Entry


Machine Check 660 Error
Troubleshooting AlphaServer 8200/8400

Machine Check 660 Error

The example shows a sample machine check 660 error log. The following steps isolate the error and the FRU most likely responsible, using the machine check 660 parse tree.

1	This line (CPU Minor class...) identifies the error log entry as a machine check 660 error.

2	The parse tree for machine check 660 errors starts with the EI_STAT register. In the example, however, no bits specified in the parse tree are set, so proceed to the next branch of the parse tree.

3	The TLBER register is next in the parse tree, but the only bit set is bit 23, which is not called out in the parse tree.  Proceed to the next branch.

4	The TLEPAERR register has bit 5 set.  In the parse tree, this is shown as a duplicate tag status parity error, and the FRU identified (with high probability) is a CPU.

5	The WHAMI (who am I) register identifies the faulty CPU module as the one in slot 0.


Sample Machine Check 660 Error Log Entry

************************** ENTRY   16 ***************************

Logging OS                        2. OSF/1

System Architecture               2. AXP

Event sequence number             7.

Timestamp of occurrence              11-JAN-1995 18:31:54

Host name                            ruby9

AXP HW model                         AlphaServer 8400

Number of CPUs (mpnum)    x00000002

CPU logging event (mperr) x00000001

Event validity                    1. Valid

Event severity                    1. Severe Priority

Entry type                      100. CPU Machine Check Errors

CPU Minor class                   2. 660 Entry

---TurboLaser 660---

Software Flags            x00000000

Active CPUs               x00000003

Hardware Rev              x00000000

System Serial Number

Module Serial Number

System Revision           x00000000

MCHK Reason Mask          x0000FFF0

MCHK Frame Rev            x00000000

PAL SHADOW REG 0          x0000000000000000

PAL SHADOW REG 1          x0000000000000000

PAL SHADOW REG 2          x0000000000000000

PAL SHADOW REG 3          x0000000000000000

PAL SHADOW REG 4          x0000000000000000

PAL SHADOW REG 5          x0000000000000000

PAL SHADOW REG 6          x0000000000000000

PAL SHADOW REG 7          x0000000000000000

PALTEMP0                  x0000000000000001

PALTEMP1                  x00000000000061A8

PALTEMP2                  xFFFFFC0000456780

PALTEMP3                  x0000000000005890

PALTEMP4                  x0000000000000000

PALTEMP5                  x0000000000002000

PALTEMP6                  x0000000000000000

PALTEMP7                  xFFFFFC0000456210

PALTEMP8                  x1F1E161514020100

PALTEMP9                  xFFFFFC0000456500

PALTEMP10                 xFFFFFC0000457FF4

PALTEMP11                 xFFFFFC0000456360

PALTEMP12                 xFFFFFC00004566F0

PALTEMP13                 xFFFFFFF00FFFFFFF

PALTEMP14                 x0000000000000000

PALTEMP15                 x0000000000000004

PALTEMP16                 x0000020306600109

PALTEMP17                 x000000006B10216F

PALTEMP18                 x000000011FFFF840

PALTEMP19                 xFFFFFFFFB50DEC40

PALTEMP20                 x0000000019608000

PALTEMP21                 xFFFFFC0000456720

PALTEMP22                 xFFFFFC00006C30A0

PALTEMP23                 x000000000723DA58

EXC_ADDR                  xFFFFFC0000457FF4

                                     Native-mode instruction

                                     Exception PC  x3FFFFF0000115FFD

EXC_SUM                   x0000000000000000

EXC_MSK                   x0000000000000000

PAL_BASE                  x0000000000018000

                                     Base address for palcode  x0000000000000006

ISR                       x0000000080000000

                                     Ext. HW intr. Sys. Mchk (IPL31)

                                   AST requests 3 - 0  x0000000000000000

ICSR                      x0000004160000000

                                     Timeout Bit Not Set

                                     PAL Shadow Registers Enabled

                                     Correctable Err Intrpts Enabled

                                     MBOX packet selected

                                     ICACHE BIST Successful

IC PERR STAT              x0000000000000000

DC PERR STAT              x0000000000000000

Virtual Address           x0000000140568000

MM STAT                   x00000000000078D1

                                     Ref which caused err was a write

                                     Ref resulted in DTB miss

                                     Ra Field  x0000000000000003

Opcode Field   x000000000000000F

SC ADDR                   xFFFFFF000001D06F

SC STAT                   x0000000000000000

BC TAG ADDRESS            xFFFFFF80148DCFFF

                                     External cache hit

                                     Parity for ds and v bits

                                     Cache block dirty

                                     Cache block shared

                                     Cache block valid

                                     Tag address is   x0000000000006E7F

LD LOCK                   xFFFFFF000070003F

EI ADDRESS                xFFFFFFFFFFFFFFFF

FILL SYNDROME             x000000000000F2DD

EI STAT                   xFFFFFFF00FFFFFFF

                                     Error occurred during D-ref fill

WHAMI                           x01  TLSB NODE ID  0.

                                     CPU1

MISCR                           x55  B-Cache Size  4 Mbyte Bcache

                                     Two Processors

                                     TLSB RUN Signal

                                     CPU0 Running console

TLDEV                  x00008014  Device Type Turbo-Laser Dual CPU, 4meg

                                                  Bcache

                                     Device Rev  x00000000

TLBER                     x00800000  Data Syndrome 3

TLCNR                     x00000200

TLVID                     x00000010

TLESR0                    x00400303  CPU0 is Data Source

TLESR1                    x00400C0C  CPU0 is Data Source

TLESR2                    x00406060  CPU0 is Data Source

TLESR3                    x00409090  CPU0 is Data Source

TLEPAERR                  x00000020

MODCONFIG                 x00098AD4  Lockout Enable

                                     Command Piping To EV5 Disabled

                                     Bcache Size:   4 MB

                                     Bcache Idle Cycles Before 11.

                                     Max Command Queue Entries 2.

                                     Max Bus Queue Entries   4.

TLEPMERR                  x00000000

TLEPDERR                  x00000000

TL INTR MASK 0            x000001FF  UART 0 Interrupt Enable

                                     IPL 14 Interrupt Enable

                                     IPL 15 Interrupt Enable

                                     IPL 16 Interrupt Enable

                                     IPL 17 Interrupt Enable

                                     Interprocessor Interrupt Enable

                                     Interval Timer Interrupt Enable

                                     CPU Halt Enable

                                     Control/P Halt Enable

TL INTR MASK 1            x000000FE  IPL 14 Interrupt Enable

                                     IPL 15 Interrupt Enable

                                     IPL 16 Interrupt Enable

                                     IPL 17 Interrupt Enable

                                     Interprocessor Interrupt Enable

                                     Interval Timer Interrupt Enable

                                     CPU Halt Enable

TL INTR SUM 0             x00000000

TL INTR SUM 1             x00000000

TLEP VMG                  x00000000

Palcode Revision          x0000000000000000


Machine Check 620 Error
Troubleshooting AlphaServer 8200/8400

Machine Check 620 Error

The example shows a sample machine check 620 error.  In this case, all nodes on the TLSB are presented in the error log entry.  The parse tree isolates machine check 620 errors.  The following steps isolate the error and the FRU most likely responsible, using the parse tree.

1	This line (CPU Minor class...) identifies the error as a machine check 620 error.

2	The parse tree for machine check 620 errors starts with the EI_STAT register.  In this case, bits 30 and 31 of EI_STAT are set, but bit 39 of EI_ADDR is not set, so we follow branch 3.

3	The next branch on the parse tree denotes TLBER<18>.  Checking the first TLBER entry here shows that TLBER<18> is set, but not TLBER<24>,  the next step down.  This indicates following branch 4 at this place in the parse tree.

4	Branch 4 of the parse tree asks that we look at all memories on the TLSB.  There is only one, at node 7.  Looking at that memorys TLBER register, we see that bit 18 is set as well as bit 24.  Of bits <23:20>, bit 20 is set, and the parse tree indicates we should examine the memorys TLESR0 register.

5	Bit 17 of the TLESR0 is not set, so we follow the branch down and examine EI_STAT<34>, which is not set.  Following the branch further shows a corrected read data error on a data stream read, and that the fault occurred in a SIMM.

6	The error log identifies the SIMM where the error occurred as J23.  UNIX lists each occurrence of a corrected read data error.  Before replacing the SIMM, you would probably want to examine other 620 entries to see if the error on SIMM J23 was repeated.


Sample Machine Check 620 Error Log Entry

*************************** ENTRY    1 ********************************

Logging OS                        2. OSF/1

System Architecture               2. Alpha

Event sequence number             2.

Timestamp of occurrence              29-FEB-2020 11:42:15

Host name                            clyp01

System type register      x0000000C  AlphaServer 2x000

Number of CPUs (mpnum)    x00000002

CPU logging event (mperr) x00000000

Event validity                    1. Valid

Event severity                    5. Low Priority

Entry type                      100. CPU Machine Check Errors

CPU Minor class                   4. 620 System Correctable Error

--TLaser 620 Corr Error--

Software Flags            x00000001  TLSB Error Log Snapshot Packet Present

Active CPUs               x00000003

Hardware Rev              x00000000

System Serial Number

Module Serial Number

System Revision           x00000000

MCHK Reason Mask          x00000086

MCHK Frame Rev            x00000000

EI STAT                   xFFFFFFF0C2FFFFFF

                                     Error Source is memory or system

                                     Correctable ECC error

                                     Error occurred during D-ref fill

                                     EV5 Chip Rev 2

EI ADDRESS                xFFFFFF0002D4420F

FILL SYNDROME             x00000000000000CB

                                     Data Bit = 001

ISR                       x0000000100000000

                                     Correctable ECC errors (IPL31)

                                     AST requests 3 -0x0000000000000000

WHAMI                           x00  TLSB NODE ID  0.

                                     CPU0

MISCR                           x55  B-Cache Size  4 Mbyte Bcache

                                     Two Processors

                                     TLSB RUN Signal

                                     CPU0 Running console

TLDEV                     x00008014  Device Type  TLaser Dual CPU, 4meg

                                                  Bcache

                                     Device Rev  x00000000

TLBER                     x00140000  Correctable Read Data Error

                                     Data Syndrome 0

TLESR0                    x00A0CBCB  ECC Syndrome  x000000CB

                                     Correctable Read ECC Error

                                     CPU1 is Data Source

TLESR1                    x00400C0C

TLESR2                    x00406060

TLESR3                    x00409090

Palcode Revision          x0000002200000303

*TLaser CPU Registers*

TLSB Node Number                  0.

TLDEV                         x8014  Turbo-Laser Dual CPU, 4meg Bcache

TLBER                     x00100000

TLCNR                     x00000200

TLVID                     x00000010

TLESR0                    x0080CBCB

TLESR1                    x00400C0C

TLESR2                    x00406060

TLESR3                    x00409090

TLEPAERR                  x00000000

MODCONFIG                 x00098AD4  Lockout Enable

                                     Command Piping To EV5 Disabled

                                     Bcache Size:   4 MB

                                     Bcache Idle Cycles Before 11.

                                     Max Command Queue Entries 2.

                                     Max Bus Queue Entries   4.

TLEPMERR                  x00000000

                          x00000000

TLEP Interrupt Mask 0     x000000FE  IPL 14 Interrupt Enable

                                     IPL 15 Interrupt Enable

                                     IPL 16 Interrupt Enable

                                     IPL 17 Interrupt Enable

                                     Interprocessor Interrupt Enable

                                     Interval Timer Interrupt Enable

                                     CPU Halt Enable

TLEP Interrupt Summary 0  x00000000

TLEP Interrupt Mask 1     x00000000

TLEP Interrupt Summary 1  x00000000

* TLaser I/O Registers *

TLSB Node Number                  6.

TLDEV                         x2020  Turbo-Laser Integrated I/O Module

TLBER                     x00800000

TLESR0                    x00000000

TLESR1                    x00000000

TLESR2                    x00000000

TLESR3                    x00000000

CPU Interrupt Mask        x00000001  Cpu Interrupt Mask =   x00000001

ICCMSR                    x00000000  Arbitration Control  Minimum Latency Mode

                                     Suppress Control  Suppress after 16

                                                      Transactions

ICCNSE                    x80000000  Interrupt on NSES Set

ICCMTR                    x00000000

IDPNSE-0                  x00000006  Hose Power OK

                                     Hose Cable OK

IDPNSE-1                  x00000000

IDPNSE-2                  x00000000

IDPNSE-3                  x00000000

IDPVR                     x00000CF0

TLMBPR                    x0000000000000000

IDPDR0                    x20000000

IDPDR1                    x00000000

IDPDR2                    x00000000

IDPDR3                    x00000000

* TLaser Memory Regs *

TLSB Node Number                  7.

TLDEV                         x5000  Turbo-Laser Memory Module

TLBER                     x01140000  Correctable Read Data Error

                                     Data Syndrome 0

                                     Data Transmitter During Error

TLCNR                     x000FC270

TLVID                     x00000080

FADR0                     x02D44200

FADR1                     x07020000

TLESR0                    x0021CBCB  ECC Syndrome  x000000CB

                                     Transmitter During Error

                                     Correctable Read ECC Error

  ECC Code                      xCB  Failing SIMM Number = J23

  Second ECC Code               xCB  Failing SIMM Number = J23

TLESR1                    x00000C0C

TLESR2                    x00006060

TLESR3                    x00009090

TMIR                      x80000001  Interleave  x00000001

TMCR                      x00000234  128MB Module (E2035-BA)

                                     4 MB

                                     70ns DRAM

                                     Strings Installed =   2

                                     DRAM timing:   Bus Spd = 13.8-15.0;

                                                    Refresh Cnt = 1008

TMER                      x00000000  Failing String =   x00000000

TMDRA                     x10000000  Refresh Rate   2X Default

TDDR0                     x00008100

TDDR1                     x00000000

TDDR2                     x00000000

TDDR3                     x00000000

* TLaser I/O Registers *

TLSB Node Number                  8.

TLDEV                         x2000  Turbo-Laser I/O Module

TLBER                     x00000000

TLESR0                    x00000000

TLESR1                    x00000000

TLESR2                    x00000000

TLESR3                    x00000000

CPU Interrupt Mask        x00000001  Cpu Interrupt Mask =   x00000001

ICCMSR                    x00000000  Arbitration Control  Minimum Latency Mode

                                     Suppress Control  Suppress after 16

                                                      Transactions

ICCNSE                    x80000000  Interrupt on NSES Set

ICCMTR                    x00000000

IDPNSE-0                  x00000000

IDPNSE-1                  x00000006  Hose Power OK

                                     Hose Cable OK

IDPNSE-2                  x00000000

IDPNSE-3                  x00000000

IDPVR                     x00000800

TLMBPR                    x0000000000000000

IDPDR0                    x00000000

IDPDR1                    x00000000

IDPDR2                    x00000000

IDPDR3                    x00000000


DWLPA Motherboard (PCIA) Adapter Error Log
Troubleshooting AlphaServer 8200/8400

DWLPA Motherboard (PCIA) Adapter Error Log

The example shows a sample DWLPA motherboard (PCIA) adapter error.  Click for the corresponding parse tree.  The following steps isolate the error and the FRU most likely responsible.

1	This line (SWI Minor sub class...) identifies the error as a PCIA (DWLPA motherboard) adapter error.

2	The parse tree for the DWLPA motherboard starts with the ERR0 register.  No bits are set in this register, so we follow the tree down.

3	The ERR1 register is also all zeros, so we follow the tree down.

4	The ERR2 registers last digit is a 9, indicating that bit 0 is set, and bit 3 is set.  The FRUs identified for this branch of the parse tree are the KFTxA (high probability), PCIA (DWLPA motherboard) medium probability, and hose (I/O cable connecting KFTxA to DWLPA motherboard) low probability.


Sample DWLPA Motherboard Error Log Entry

***************************** ENTRY    1 *****************************

Logging OS                        1. OpenVMS

System Architecture               2. Alpha

OS version                           T6.2-FT3

Event sequence number           140.

Timestamp of occurrence              25-APR-1995 11:26:16

System uptime in seconds         51.

Flags                         x0000

Host name                            CLYP01

Alpha HW model                       AlphaServer 8200 Model 5/300

Unique CPU ID             x00000005

Entry type                       28. Adapter Error

SWI Minor class                   8. Adapter Error

SWI Minor sub class               5. PCIA

Software Flags            x00280000  PCIA Subpacket Present

                                     PCI Bus Snapshot Present

Base Phys Addr of TIOP    x000000FF89800000

-TLaser PCIA Registers-

Channel No.                   x0001

PCI Slots Present         x00000000  Contents of PCI0-Slot 0  No Card

                                     Contents of PCI0-Slot 1  No Card

                                     Contents of PCI0-Slot 2  No Card

                                     Contents of PCI0-Slot 3  No Card

                                     Contents of PCI1-Slot 0  No Card

                                     Contents of PCI1-Slot 1  No Card

                                     Contents of PCI1-Slot 2  No Card

                                     Contents of PCI1-Slot 3  No Card

                                     Contents of PCI2-Slot 0  No Card

                                     Contents of PCI2-Slot 1  No Card

                                     Contents of PCI2-Slot 2  No Card

                                     Contents of PCI2-Slot 3  No Card

                                     Module Revision  x00000000

CTL0                      x01E00100  Config Cycle Type  PCI Type 0

                                                        Configuration

                                     Memory Block Size  64 Bytes

                                     PCI Cut Through Threshold x00000000

                                     IO Space HW Addr Ext.  x00000000

                                Mem Read Mult Pre-fetch S 4 Cache Blocks

                               I/O Port Up Hose Buffers  3 Buffers (TIOP

                                                               and IOP)

                                    Scatter/Gather Map RAM Si 128KB (32K

                                                        entries-default)

                                PCI Arbitration Control  Round Robin for

                                                          all Masters

                                     PCI Cut Through Enable

                                     Memory Read Multiple Enable

MRETRY 0                  x00400000

ERR 0                     x00000000

FADR0                     x00000000  DMA Read from Memory

IMask PCI Interrupt 0     x01030000  Error Interrupt Enable

                                     Device Interrupt Priority IPL 14

DIAG0                     x00000000  Generate Correct parity

                                     HPC Gate Array Revision = 0.

                                     RM Down Hose Translate Ad x00000000

IPEND 0                   x00000000

IPROG 0                   x00000000  Interrupt Source  Slot 0 INTA

Window Mask Reg A0        x007F0000  Window Size =  8 MB

Window Base Reg A0        x00800003  Scatter/Gather Enable

                                     Window Enable

                                     Window Base Address =   x00000080

Translation Base Reg A0   x00000000  Translated Base Address = x00000000

Window Mask Reg B0        x3FFF0000  Window Size =  1 GB

Window Base Reg B0        x40000002  Window Enable

                                     Window Base Address =   x00004000

Translation Base Reg B0   x00000000  Translated Base Address = x00000000

Window Mask Reg C0        x0FFF0000  Window Size =  256 MB

Window Base Reg C0        xF0000003  Scatter/Gather Enable

                                     Window Enable

                                     Window Base Address =   x0000F000

Translation Base Reg C0   x00000000  Translated Base Address = x00000000

Error Vector 0            x00000945  Interrupt Vector  x00000945

Dev Vec 0 Slot 0, IntA    x00000B70  Interrupt Vector   x00000B70

Dev Vec 0 Slot 0, IntB    x00000B80  Interrupt Vector   x00000B80

Dev Vec 0 Slot 0, IntC    x00000B90  Interrupt Vector   x00000B90

Dev Vec 0 Slot 0, IntD    x00000BA0  Interrupt Vector   x00000BA0

Dev Vec 0 Slot 1, IntA    x00000905  Interrupt Vector   x00000905

Dev Vec 0 Slot 1, IntB    x00000BC0  Interrupt Vector   x00000BC0

Dev Vec 0 Slot 1, IntC    x00000BD0  Interrupt Vector   x00000BD0

Dev Vec 0 Slot 1, IntD    x00000BE0  Interrupt Vector   x00000BE0

Dev Vec 0 Slot 2, IntA    x00000BF0  Interrupt Vector   x00000BF0

Dev Vec 0 Slot 2, IntB    x00000C00  Interrupt Vector   x00000C00

Dev Vec 0 Slot 2, IntC    x00000C10  Interrupt Vector   x00000C10

Dev Vec 0 Slot 2, IntD    x00000C20  Interrupt Vector   x00000C20

Dev Vec 0 Slot 3, IntA    x00000C30  Interrupt Vector   x00000C30

Dev Vec 0 Slot 3, IntB    x00000C40  Interrupt Vector   x00000C40

Dev Vec 0 Slot 3, IntC    x00000C50  Interrupt Vector   x00000C50

Dev Vec 0 Slot 3, IntD    x00000C60  Interrupt Vector   x00000C60

CTL 1                     x01E00100  Config Cycle Type  PCI Type 0

                                                        Configuration

                                     Memory Block Size  64 Bytes

                                     PCI Cut Through Threshold x00000000

                                     IO Space HW Addr Ext.  x00000000

                                Mem Read Mult Pre-fetch S 4 Cache Blocks

                               I/O Port Up Hose Buffers  3 Buffers (TIOP

                                                               and IOP)

                                    Scatter/Gather Map RAM Si 128KB (32K

                                                       entries-default)

                                PCI Arbitration Control  Round Robin for

                                                            all Masters

                                     PCI Cut Through Enable

                                     Memory Read Multiple Enable

MRETRY 1                  x00400000

ERR 1                     x00000000

FADR 1                    x00000000  DMA Read from Memory

IMask PCI Interrupt Mask  x01030000  Error Interrupt Enable

                                     Device Interrupt Priority IPL 14

DIAG 1                    x00000000  Generate Correct parity

                                     HPC Gate Array Revision = 0.

                                     RM Down Hose Translate Ad x00000000

IPEND 1                   x00000000

IPROG 1                   x00000000  Interrupt Source  Slot 0 INTA

Window Mask Reg A1        x007F0000  Window Size =  8 MB

Window Base Reg A1        x00800003  Scatter/Gather Enable

                                     Window Enable

                                     Window Base Address =   x00000080

Translation Base Reg A1   x00000000  Translated Base Address = x00000000

Window Mask Reg B1        x3FFF0000  Window Size =  1 GB

Window Base Reg B1        x40000002  Window Enable

                                     Window Base Address =   x00004000

Translation Base Reg B1   x00000000  Translated Base Address = x00000000

Window Mask Reg C1        x0FFF0000  Window Size =  256 MB

Window Base Reg C1        xF0000003  Scatter/Gather Enable

                                     Window Enable

                                     Window Base Address =   x0000F000

Translation Base Reg C1   x00000000  Translated Base Address = x00000000

Error Vector 1            x00000956  Interrupt Vector  x00000956

Dev Vec 1 Slot 0, IntA    x00000C70  Interrupt Vector   x00000C70

Dev Vec 1 Slot 0, IntB    x00000C80  Interrupt Vector   x00000C80

Dev Vec 1 Slot 0, IntC    x00000C90  Interrupt Vector   x00000C90

Dev Vec 1 Slot 0, IntD    x00000CA0  Interrupt Vector   x00000CA0

Dev Vec 1 Slot 1, IntA    x00000CB0  Interrupt Vector   x00000CB0

Dev Vec 1 Slot 1, IntB    x00000CC0  Interrupt Vector   x00000CC0

Dev Vec 1 Slot 1, IntC    x00000CD0  Interrupt Vector   x00000CD0

Dev Vec 1 Slot 1, IntD    x00000CE0  Interrupt Vector   x00000CE0

Dev Vec 1 Slot 2, IntA    x00000CF0  Interrupt Vector   x00000CF0

Dev Vec 1 Slot 2, IntB    x00000D00  Interrupt Vector   x00000D00

Dev Vec 1 Slot 2, IntC    x00000D10  Interrupt Vector   x00000D10

Dev Vec 1 Slot 2, IntD    x00000D20  Interrupt Vector   x00000D20

Dev Vec 1 Slot 3, IntA    x00000D30  Interrupt Vector   x00000D30

Dev Vec 1 Slot 3, IntB    x00000D40  Interrupt Vector   x00000D40

Dev Vec 1 Slot 3, IntC    x00000D50  Interrupt Vector   x00000D50

Dev Vec 1 Slot 3, IntD    x00000D60  Interrupt Vector   x00000D60

CTL 2                     x01E00100  Config Cycle Type  PCI Type 0

                                                        Configuration

                                     Memory Block Size  64 Bytes

                                     PCI Cut Through Threshold x00000000

                                     IO Space HW Addr Ext.  x00000000

                                Mem Read Mult Pre-fetch S 4 Cache Blocks

                               I/O Port Up Hose Buffers  3 Buffers (TIOP

                                                               and IOP)

                                    Scatter/Gather Map RAM Si 128KB (32K

                                                        entries-default)

                                PCI Arbitration Control  Round Robin for

                                                             all Masters

                                     PCI Cut Through Enable

                                     Memory Read Multiple Enable

MRETRY 2                  x00400000

ERR 2                     x00000009  Error Summary

                                     CSR Overrun Error

FADR 2                    x00000000  DMA Read from Memory

IMask PCI Interrupt Mask  x01030000  Error Interrupt Enable

                                     Device Interrupt Priority IPL 14

DIAG 2                    x00000000  Generate Correct parity

                                     HPC Gate Array Revision = 0.

                                     RM Down Hose Translate Ad x00000000

IPEND 2                   x00000000

IPROG 2                   x00000000  Interrupt Source  Slot 0 INTA

Window Mask Reg A2        x007F0000  Window Size =  8 MB

Window Base Reg A2        x00800003  Scatter/Gather Enable

                                     Window Enable

                                     Window Base Address =   x00000080

Translation Base Reg A2   x00000000  Translated Base Address = x00000000

Window Mask Reg B2        x3FFF0000  Window Size =  1 GB

Window Base Reg B2        x40000002  Window Enable

                                     Window Base Address =   x00004000

Translation Base Reg B2   x00000000  Translated Base Address = x00000000

Window Mask Reg C2        x0FFF0000  Window Size =  256 MB

Window Base Reg C2        xF0000003  Scatter/Gather Enable

                                     Window Enable

                                     Window Base Address =   x0000F000

Translation Base Reg C2   x00000000  Translated Base Address = x00000000

Error Vector 2            x00000967  Interrupt Vector  x00000967

Dev Vec 2 Slot 0, IntA    x00000D70  Interrupt Vector   x00000D70

Dev Vec 2 Slot 0, IntB    x00000D80  Interrupt Vector   x00000D80

Dev Vec 2 Slot 0, IntC    x00000D90  Interrupt Vector   x00000D90

Dev Vec 2 Slot 0, IntD    x00000DA0  Interrupt Vector   x00000DA0

Dev Vec 2 Slot 1, IntA    x00000DB0  Interrupt Vector   x00000DB0

Dev Vec 2 Slot 1, IntB    x00000DC0  Interrupt Vector   x00000DC0

Dev Vec 2 Slot 1, IntC    x00000DD0  Interrupt Vector   x00000DD0

Dev Vec 2 Slot 1, IntD    x00000DE0  Interrupt Vector   x00000DE0

Dev Vec 2 Slot 2, IntA    x00000DF0  Interrupt Vector   x00000DF0

Dev Vec 2 Slot 2, IntB    x00000E00  Interrupt Vector   x00000E00

Dev Vec 2 Slot 2, IntC    x00000E10  Interrupt Vector   x00000E10

Dev Vec 2 Slot 2, IntD    x00000E20  Interrupt Vector   x00000E20

Dev Vec 2 Slot 3, IntA    x00000E30  Interrupt Vector   x00000E30

Dev Vec 2 Slot 3, IntB    x00000E40  Interrupt Vector   x00000E40

Dev Vec 2 Slot 3, IntC    x00000E50  Interrupt Vector   x00000E50

Dev Vec 2 Slot 3, IntD    x00000E60  Interrupt Vector   x00000E60

--TLaser PCI Registers--

Node Qty                          1.

CONFIG Address            x0000000000000018

Device Name               x00021011  DECchip 21040-A

Vendor ID                     x1011

Device ID                     x0002

Command                       x0007

Status                        x0280  Fast Back-to-Back Capable

                                     DEVSEL  Medium

Revision ID                     x23

Class Code                  x020000

Cache Line S                    x00

Latency T.                      xFF

Header Type                     x00

Bist                            x00

Base Address Register 1   x00180001

Base Address Register 2   x01000000

Base Address Register 3   x00000000

Base Address Register 4   x00000000

Base Address Register 5   x00000000

Base Address Register 6   x00000000

Expansion Rom Base Addres x00000000

Interrupt P1                    xE5

Interrupt P2                    x01

Min Gnt                         x00

Max Lat                         x00


Troubleshooting AlphaServer 8200/8400

Machine Check 670 Parse Tree


Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 660 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 630 Parse Tree


Troubleshooting AlphaServer 8200/8400

Machine Check 620 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 620 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 620 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 620 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 620 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 620 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 620 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 620 Parse Tree

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Troubleshooting AlphaServer 8200/8400

Machine Check 620 Parse Tree

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Troubleshooting AlphaServer 8200/8400

KFTxA Error Parse Tree

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Troubleshooting AlphaServer 8200/8400

KFTxA Error Parse Tree

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Troubleshooting AlphaServer 8200/8400

KFTxA Error Parse Tree

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Troubleshooting AlphaServer 8200/8400

DWLPA Error Parse Tree

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Troubleshooting AlphaServer 8200/8400

DWLPA Error Parse Tree

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Troubleshooting AlphaServer 8200/8400

DWLPA Error Parse Tree

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Troubleshooting AlphaServer 8200/8400

DWLMA Error Parse Tree

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Troubleshooting AlphaServer 8200/8400

DWLMA Error Parse Tree

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Troubleshooting AlphaServer 8200/8400

DWLMA Error Parse Tree

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Troubleshooting AlphaServer 8200/8400

DWLMA Error Parse Tree

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TLSB Card Cage and Modules
TLSB Modules - AlphaServer 8200/8400

TLSB Card Cage and Modules

How to Replace the Only Processor

First, update console firmware and any customized environment variables or boot paths.

How to Replace the Boot Processor

Check the console firmware version in the existing and replacement modules, and, if they differ, use the LFU update command to bring the replacement module to the current version. Build the EEPROM on the replacement module.

How to Add a New Processor or Replace a Secondary Processor

Check the console firmware version in the existing modules and the new or replacement module, and, if they differ, use the LFU update command to bring the new module to the current version. Build the EEPROM on the new module.

Processor, Memory, or Terminator Module Removal and Replacement

Wear an antistatic wrist strap. Release the handles and slide the module out of the card cage. To replace, line up the module and cover with the guide and rail in the card cage, be sure the projections on the top and bottom of the end plate align with the slots in the card cage, and slide the module into the cage. Push the handles in to connect at the centerplane, and let them spring into the stops.

SIMM Removal and Replacement

Remove both covers from the memory module. Remove the standoff at the end of the row with the failing SIMM. Remove all SIMMs in the row up to and including the failing SIMM. Release the latches on both ends of the SIMM by gently inserting a small Phillips screwdriver.

I/O Cable Removal and Replacement

The I/O hose cable connects the KFTHA or KFTIA module to an I/O bus. Remove a hose by loosening the captive screws on the connector.

KFTHA Module Removal and Replacement

After removing all hoses from the KFTHA module, removal of the module is the same as other modules.

KFTIA Module Removal and Replacement

Disconnect and label all cables. Remove the side 1 cover and any daughter cards. If present, remove and save the FDDI bulkhead connector.

FDDI Daughter Card Removal and Replacement

Remove the KFTIA module from the system. Remove the side 1 cover and the two  screws that attach the FDDI daughter card to the module. Lift the module off the extender.

NVRAM Daughter Card Removal and Replacement

Remove the KFTIA module from the system. Remove the side 1 cover and the four screws that attach the NVRAM daughter card to the module. Lift the module off the connector.

NVRAM Battery Removal and Replacement

Remove the NVRAM daughter card. Slide the battery out of the holder. Observe all notes and cautions in the text.


How to Replace the Only Processor
TLSB Modules - AlphaServer 8200/8400

How to Replace the Only Processor

1	List the systems environment variables to determine if any have been customized. You will set these in step 7.

2	Power down the system and remove and replace the module. (Click for instructions. )

3	Power up the system. Boot LFU and issue the update command to ensure that the module has the latest version of console firmware.

4	Exit LFU.

5	Build the EEPROM. The format of data often changes between versions of console firmware. This command reformats the data.

6	Initialize the system.

7	Set any customized environment variables with the set <envar> command. (Click to show environment variables. )

8	Enter into the EEPROM the 8-digit LARS number and a short message (68 characters maximum) stating the date and reason for service.

9	Boot the operating system.


Replacing the Only Processor Module

P00>>> show *
[list of environment variables appears]

P00>>> boot dka500 -fl 0,a0
[LFU boots]

UPD> update kn7cc*

Confirm update on:

kn7cc-ab0

[Y/(N)]y

WARNING: updates may take several minutes to complete for each device.

                          DO NOT ABORT!

kn7cc-ab0       Updating to 3.2-32...  Verifying 3.2-32...  PASSED.

UPD> exit

Initializing...

[self-test display appears]

P00>>> build -e kn7cc-ab0

Build EEPROM on kn7cc-ab0 ? [Y/N]> y

EEPROM built on kn7cc-ab0

P00>>> set bootdef_dev dua1.0.0.11.0

P00>>> init

Initializing...

[self-test display appears]

P00>>> set eeprom field

LARS> 01234567

Message>

P00>>> boot


How to Replace the Boot Processor
TLSB Modules - AlphaServer 8200/8400

How to Replace the Boot Processor

1	Remove the failing module.  (Click for instructions. )

2	Power up the system and make note of the version of console firmware in the remaining modules.

3	Power down the system and remove all processor modules. (Click for instructions. )

4	Insert the replacement processor module. (Click for instructions. )

5	Power up the system and determine the version of console firmware in the replacement module. If it is different from the other modules, boot LFU and update the firmware using the update command.

6	Build the EEPROM.

7	Power down the system, replace the other processor modules, and power up the system. (Click for instructions. )

8	Copy the EEPROM environment variables from a secondary processor to the new primary processor. To do this, set a different module as primary and copy the environment variables using the build -c command.

9	Set processor 0 as the primary processor. Then enter into the EEPROM the 8-digit LARS number and a short message (68 characters maximum) stating the date and reason for service.

10	Boot the operating system.


Replacing the Boot Processor

F   E   D   C   B   A   9   8   7   6   5   4   3   2   1   0   NODE #
                            A   M   M   .   .   .   M   P   .   TYP
                            o   +   +   .   .   .   +  ++   .   ST1
                            .   .   .   .   .   .   .  EB   .   BPD
                            o   +   +   .   .   .   +  ++   .   ST2
                            .   .   .   .   .   .   .  EB   .   BPD
                            +   +   +   .   .   .   +  ++   .   ST3
                            .   .   .   .   .   .   .  EB   .   BPD

    +   .   .   +   .   .   +   .   .   .   .   +   .   +       C0 XMI +
.   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   C1
.   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   C2
                .   +   .   +   +   .   .   .   .   .   .   +   C3 PCI +
                            .   .   .   .   +   .   +   .          EISA+

                            .  B1  B0   .   .   .  A0   .   .   ILV
                            . 128 128   .   .   . 256   .   .   512MB

AlphaServer 8400 Console V1.0, SROM V1.0, Apr  1 1995 16:17:26

P00>>> boot dka500 -fl 0,a0

[LFU boots]

UPD> update kn7cc*

Confirm update on:
kn7cc-ab0
[Y/(N)]y
WARNING: updates may take several minutes to complete for each device.

                          DO NOT ABORT!

kn7cc-ab0       Updating to 1.0-66...  Verifying 1.0-66...  PASSED.

UPD> exit
Initializing...

[self-test display appears]

P00>>> build -e kn7cc-ab0
Build EEPROM on kn7cc-ab0 ? [Y/N]> y

EEPROM built on kn7cc-ab0

P00>>>

F   E   D   C   B   A   9   8   7   6   5   4   3   2   1   0   NODE #
                            A   M   M   .   .   .   M   P   P   TYP
                            o   +   +   .   .   .   +  ++  ++   ST1
                            .   .   .   .   .   .   .  EE  EB   BPD
                            o   +   +   .   .   .   +  ++  ++   ST2
                            .   .   .   .   .   .   .  EE  EB   BPD
                            +   +   +   .   .   .   +  ++  ++   ST3
                            .   .   .   .   .   .   .  EE  EB   BPD

    +   .   .   +   .   .   +   .   .   .   .   +   .   +       C0 XMI +
.   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   C1
.   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   C2
                .   +   .   +   +   .   .   .   .   .   .   +   C3 PCI +
                            .   .   .   .   +   .   +   .          EISA+

                            .  B1  B0   .   .   .  A0   .   .   ILV
                            . 128 128   .   .   . 256   .   .   512MB
AlphaServer 8400 Console V1.0, SROM V1.0, Apr  1 1995 16:17:26

P00>>> set cpu 2

P02>>> build -c kn7cc*

P02>>> set cpu 0

P00>>> set eeprom field
LARS> 01234567
Message>

P00>>> boot


How to Add a New Processor or Replace a Secondary Processor
TLSB Modules - AlphaServer 8200/8400

How to Add a New Processor or Replace a Secondary Processor

1	If you are replacing a secondary processor, remove the module from the system. (Click for instructions. )

2	Power up the system and make note of the version of console firmware in the processor modules.

3	Power down the system and remove all processor modules. (Click for instructions. )

4	Insert the new processor module. (Click for instructions. )

5	Power up the system and determine the version of console firmware in the replacement module. If it is different from the other modules, boot LFU and update the firmware using the update command.

6	Build the EEPROM.

7	Power down the system and replace the other processor modules. (Click for instructions. )

8	Power up the system. Copy the EEPROM environment variables to the new processor using the build -c command.

9	Enter into the EEPROM the 8-digit LARS number and a short message (68 characters maximum) stating the date and reason for service.

10	Boot the operating system.


Adding or Replacing a Secondary Processor

In this example, the primary processor is in slot 0 and a secondary processor is being replaced in slot 1.

F   E   D   C   B   A   9   8   7   6   5   4   3   2   1   0   NODE #
                            A   M   M   .   .   .   M   .   P   TYP
                            o   +   +   .   .   .   +   .  ++   ST1
                            .   .   .   .   .   .   .   .  EB   BPD
                            o   +   +   .   .   .   +   .  ++   ST2
                            .   .   .   .   .   .   .   .  EB   BPD
                            +   +   +   .   .   .   +   .  ++   ST3
                            .   .   .   .   .   .   .   .  EB   BPD

    +   .   .   +   .   .   +   .   .   .   .   +   .   +       C0 XMI +
.   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   C1
.   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   C2
                .   +   .   +   +   .   .   .   .   .   .   +   C3 PCI +
                            .   .   .   .   +   .   +   .          EISA+

                            .  B1  B0   .   .   .  A0   .   .   ILV
                            . 128 128   .   .   . 256   .   .   512MB

AlphaServer 8400 Console V1.0, SROM V1.0, Apr  1 1995 16:17:26

P02>>> boot dka500 -fl 0,a0

[LFU boots]

UPD> update kn7cc*

Confirm update on:
kn7cc-ab0
[Y/(N)]y

WARNING: updates may take several minutes to complete for each device.

                          DO NOT ABORT!

kn7cc-ab0       Updating to 1.0-66...  Verifying 1.0-66...  PASSED.

UPD> exit
Initializing...
[self-test display appears]

P02>>> build -e kn7cc*
Build EEPROM on kn7cc-ab0 ? [Y/N]> y

EEPROM built on kn7cc-ab0
P02>>> i
Initializing...

F   E   D   C   B   A   9   8   7   6   5   4   3   2   1   0   NODE #
                            A   M   M   .   .   .   M   P   P   TYP
                            o   +   +   .   .   .   +  ++  ++   ST1
                            .   .   .   .   .   .   .  EE  EB   BPD
                            o   +   +   .   .   .   +  ++  ++   ST2
                            .   .   .   .   .   .   .  EE  EB   BPD
                            +   +   +   .   .   .   +  ++  ++   ST3
                            .   .   .   .   .   .   .  EE  EB   BPD

    +   .   .   +   .   .   +   .   .   .   .   +   .   +       C0 XMI +
.   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   C1
.   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   C2
                .   +   .   +   +   .   .   .   .   .   .   +   C3 PCI +
                            .   .   .   .   +   .   +   .          EISA+

                            .  B1  B0   .   .   .  A0   .   .   ILV
                            . 128 128   .   .   . 256   .   .   512MB
AlphaServer 8400 Console V1.0, SROM V1.0, Apr  1 1995 16:17:26

P00>>> build -c kn7cc*

P00>>> set eeprom field
LARS> 01234567
Message>

P00>>> boot


Processor, Memory, or Terminator Module Removal and Replacement
TLSB Modules - AlphaServer 8200/8400

Processor, Memory, or Terminator Module Removal and Replacement

If you are replacing or adding a processor module, see the appropriate instructions before using this procedure:

How to Replace the Only Processor

How to Replace the Boot Processor

How to Add a New Processor or Replace a Secondary Processor

Removal

1	Shut down the operating system and power down the system.

CAUTION: You must wear a  wrist strap when you handle any modules.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	Push the handles of the module to be removed in toward the module end plate and to the left, releasing them from the stops.

4	Grasp the end plate and slide the module out of the card cage.

5	Place the module on an ESD pad. If it is being replaced, slide the module into the antistatic bag from the replacement module and pack it in the box.

Replacement

CAUTION: You must wear a  wrist strap when you handle any modules.

1	Ground yourself to the cabinet frame with an antistatic wrist strap.

CAUTION: To avoid damaging an EMI gasket, insert modules from left to right. These gaskets can easily break, and a broken piece of gasket can damage a module or the centerplane.

2	Remove the module from its packaging and release the spring-loaded handles from the stops. To do this, push both handles toward the module end plate and away from the stops.

3	Hold the module assembly by the end plate. Align the module with the card guide and the cover with the rail.

4	Slide the module assembly into the card cage as far as it will easily go.

5	When the module stops, check that the projections on the top and bottom of the end plate are aligned with the slots in the card cage. If they are not, remove the module and realign it.

6	Push the handles to the module end plate. You will feel the module make contact with the connectors at the centerplane. Release the handles so they spring back into the stops.

Verification

Check that terminator modules are installed in all unused slots. Power up the system and check that the self-test display is correct. Enter the show configuration command. If you replaced a memory module, enter the show simm command.


SIMM Removal and Replacement
TLSB Modules - AlphaServer 8200/8400

SIMM Removal and Replacement

Removal

1	Remove the appropriate memory module from the card cage.

2	Place the module on an ESD pad on a level surface. Remove both module covers by removing the eight screws from each. (The screws that attach to the end plate of the module are larger than those that attach to the standoffs.)

3	Use an adjustable wrench to remove the standoff at the end of the row with the failing SIMM.

4	Beginning with J2, J12, or J24 on the E2035 module or with J2, J14, or J28 on the E2036 module, remove each SIMM up to and including the failing SIMM. To remove a SIMM, release the latch on each end of the connector by inserting a Phillips screwdriver into the slot and pressing down.

Replacement

1	Insert the replacement SIMM into the connector at a 45 degree angle. As you rotate it to an upright position, the latches will snap into place. (The SIMM is keyed on the sides and in the center so that the correct side faces front.)

2	Insert the other SIMMs in their connectors.

3	Replace the standoff. The square standoff goes on side 1 (the component side) and the hexagonal standoff on side 2. Torque the standoffs to 12 inch-pounds (15 inch-pounds maximum).

4	Replace the module covers.

5	Replace the memory module.

Verification

P00>>> set simm_callout on

P00>>> init

[self-test display appears]

P00>>> show simm

[test message appears]

P00>>> set simm_callout off

Look for a no error message.


I/O Cable and Removal and Replacement
TLSB Modules - AlphaServer 8200/8400

I/O Cable and Removal and Replacement

Removal

1	Shut down the operating system and power down the system.

2	Gound yourself to the cabinet with an antistatic wrist strap.

3	Loosen the captive screws (slotted) to remove the cable connectors at both ends of the I/O cable to be replaced.

Replacement

1	Attach the TLSB end with pin 50 on top. Torque the screws to 6 inch-pounds.

2	Route the replacement I/O cable through the same path as the original one was routed.

3	Attach the I/O bus end. The connector is asymmetrical to ensure proper orientation.

Verification

Power up the system and check that the console display includes the I/O bus connected to this cable.


KFTHA Module Removal and Replacement
TLSB Modules - AlphaServer 8200/8400

KFTHA Module Removal and Replacement

Removal

1	Remove the I/O hose cables from the module.

a	Shut down the operating system and power down the system.

b	Gound yourself to the cabinet with an antistatic wrist strap.

c	Loosen the captive screws (slotted) to remove the cable connectors at both ends of the I/O cable to be replaced.

2	Remove the module. (Click for instructions. )

Replacement

1	Replace the module. (Click for instructions. )

2	Replace the I/O hose cables.

a	Attach the TLSB end with pin 50 on top. Torque the screws to 6 inch-pounds.

b	Route the replacement I/O cable through the same path as the original one was routed.

c	Attach the I/O bus end. The connector is asymmetrical to ensure proper orientation.

Verification

Power up the system and check that the green LED near the top connector lights.


KFTIA Module Removal and Replacement
TLSB Modules - AlphaServer 8200/8400

KFTIA Module Removal and Replacement

Removal

1	Shut down the operating system and power down the system.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	Disconnect all cables from the KFTIA bulkhead and label the cables. It is possible to have one I/O hose cable, four SCSI cables, two Ethernet cables, and one FDDI cable.

4	Remove the module from the card cage. (Click for instructions. )

5	Place the module on an ESD pad on a level surface. Remove the side 1 cover from the module by removing the eight screws. Note that the three screws attaching the cover to the bulkhead are larger than the five attaching it to the standoffs.

6	Remove the FDDI daughter card and the NVRAM daughter card, if present. (Click for instructions:   FDDI [image]     NVRAM [image])

7	If the module has an FDDI daughter card, remove the FDDI bulkhead connector from the KFTIA by removing the screw from the top of the connector. Save the connector and screw.

Replacement

1	If the KFTIA module being replaced had any daughter cards on it, do the following:

a	Place the new module on an ESD pad on a level surface. Remove the side 1 cover.

b	If the KFTIA module had an FDDI daughter card, on the replacement module remove the blank from the FDDI bulkhead connector position. To do this, remove the screw at the top and replace it with the connector saved in step 7 above.

c	Install the FDDI daughter card or the NVRAM daughter card (or both) on the replacement module. (Click for instructions:   FDDI [image]     NVRAM [image])

d	Replace the side 1 cover on the KFTIA module.

2	Insert the KFTIA module in the card cage.

3	Connect all bulkhead cables.

Verification

Power up the system and check that the green self-test LED under the single-ended SCSI connector on the KFTIA module lights. Check the self-test display for plus signs on the internal PCI line. If any minus signs print, run the show config command and check the internal PCI bus section.


FDDI Daughter Card Removal and Replacement
TLSB Modules - AlphaServer 8200/8400

FDDI Daughter Card Removal and Replacement

Removal

1	Remove the KFTIA module. Place the module on an ESD pad on a level surface. (Click for instructions. )

2	Remove the side 1 cover from the KFTIA module by removing the eight screws. Note that the three screws attaching the cover to the bulkhead are larger than the five attaching it to the standoffs.

3	Remove and save the two screws that attach the FDDI daughter card to the KFTIA module. Leave the standoffs on the module.

4	Lift the FDDI daughter card off the extender. Leave the extender on the module.

Replacement

1	Connect the replacement daughter card to the extender.

2	Attach the daughter card to the module with the screws saved in step 3 above.

3	Replace the side 1 cover on the KFTIA module.

4	Replace the KFTIA module. (Click for instructions. )

Verification

Power up the system and check that all modules appear in the self-test display. Enter the show configuration, show device, and test commands.


NVRAM Daughter Card Removal and Replacement
TLSB Modules - AlphaServer 8200/8400

NVRAM Daughter Card Removal and Replacement

Removal

1	Remove the KFTIA module and place it on an ESD pad on a level surface. (Click for instructions. )

2	Remove the side 1 cover from the KFTIA module by removing the eight screws. Note that the three screws attaching the cover to the bulkhead are larger than the five attaching it to the standoffs.

3	Remove and save the four screws that attach the NVRAM daughter card to the KFTIA module. Leave the standoffs on the module.

4	Lift the NVRAM daughter card off the connector. Grasp the card near the connector and lift it off the connector.

Replacement

1	Remove the insulator tape from under the battery clip on the replacement NVRAM daughter card.

2	Attach the replacement daughter card to the connector.

3	Attach the daughter card to the module with the screws saved in step 3 above.

4	Replace the side 1 cover on the KFTIA module.

5	Replace the KFTIA module. (Click for instructions. )

Verification

Power up the system and check that all modules appear in the self-test display. Enter the show configuration, show device, and test commands.


NVRAM Battery Removal and Replacement
TLSB Modules - AlphaServer 8200/8400

NVRAM Battery Removal and Replacement

Removal

1	Remove the daughter card. (Click for instructions. )

2	Place the daughter card on an ESD pad on a level surface, battery side up.

3	Lift the clip slightly and slide the battery out of the holder.

REPLACEMENT OF BATTERIES: When batteries are replaced, use only batteries that are compatible with the products electrical requirements and recharging circuitry, if applicable. Consult your local Digital Service Center for information and proper servicing.

CAUTION: There is a danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to local regulations, or consult your Digital Service Center.

CAUTION: Keep small batteries away from children.

Replacement

1	Slide the replacement battery into the holder so that the flat side of the battery is up. The battery holder is made to accept the battery only if the flat side is up.

2	Check that the clip is holding the battery firmly. If not, remove the battery, press the clip down gently, and replace the battery.

BATTERY DISPOSAL: Recycle or dispose of batteries contained in this product properly, in accordance with local regulations for the battery type as marked on the battery. Prior to disposal or recycling, protect batteries against accidental short circuiting by affixing non-conductive tape across battery terminals or conductive surfaces. If the battery is not marked, or if you require other information regarding batteries, consult your nearest Digital Service Center.


Updating Firmware
TLSB Modules - AlphaServer 8200/8400

Updating Firmware

LFU Overview

Use the Loadable Firmware Update (LFU) utility to update system firmware.

Booting LFU

LFU is supplied on the Alpha CD-ROM (Part Number AG-PTMW*-BE, where * is the letter that denotes the disk revision). Make sure this CD-ROM is mounted in the in-cabinet CD drive. Boot LFU from the CD-ROM.

List

The list command displays the inventory of update firmware on the CD-ROM. Only the devices listed at your terminal are supported for firmware updates.

Update

The update command writes new firmware from the CD-ROM to the module.  Then LFU automatically verifies the update by reading the new firmware image from the module into memory and comparing it with the CD-ROM image.

Exit

The exit command terminates the LFU program, causes system initialization and self-test, and returns the system to console mode.

Display and Verify Commands

Display and verify commands are used in special situations.  Display shows the physical configuration.  Verify repeats the verification process performed by the update command.

How to Update Corrupted Firmware

If LFU identifies a device as unknown, either the firmware on the module is corrupted or the console does not support or does not recognize the device.

How to Modify Device Attributes

The modify command can change parameters stored in EEPROM on the following devices: KZMSA, DEC LANcontroller 400 (DEMNA), KCM44, and KFMSB. The attributes are specific to each device.

NOTE: The latest firmware is available for downloading. Click for information.


LFU Overview
TLSB Modules - AlphaServer 8200/8400

LFU Overview

LFU runs without any operating system and can update the firmware on any system module. LFU handles modules on the TLSB bus (for example, the CPU) as well as modules on the I/O buses (for example, a CI controller on the XMI bus). You are not required to specify any hardware path information, and the update process is highly automated.

Both the LFU program and the firmware microcode images it writes are supplied on a CD-ROM. You start LFU on AlphaServer systems with the boot command.

A typical update procedure is:

1	Boot the LFU CD-ROM.

2	Use the LFU list command to show the revisions of modules that LFU can update and the revisions of update firmware.

3	Use the LFU update command to write the new firmware.

4	Exit.


Booting LFU
TLSB Modules - AlphaServer 8200/8400

Booting LFU

P00>>> sho dev

polling for units on isp0, slot 0, bus0, hose0...

dka400.4.0.0.0     DKA400                  RZ26L  440C

polling for units on isp1, slot 1, bus0, hose0...

polling for units on isp2, slot 4, bus0, hose0...

polling for units on isp3, slot 5, bus0, hose0...

dkd400.4.0.5.0     DKD400                  RRD44  0000

dkd500.5.0.5.0     DKD500                  RZ26L  440C

P00>>> boot dkd400 -fl 0,a0

Building FRU table............

(boot dkd400.4.0.5.0 -flags 0,a0)

SRM boot identifier: scsi 4 0 5 0 400 ef00 81011

boot adapter: isp3 rev 0 in bus slot 5 off of kftia0 in TLSB slot 8

block 0 of dkd400.4.0.5.0 is a valid boot block

reading 1018 blocks from dkd400.4.0.5.0

bootstrap code read in

base = 200000, image_start = 0, image_bytes = 7f400

initializing HWRPB at 2000

initializing page table at 1f2000

initializing machine state

setting affinity to the primary CPU

jumping to bootstrap code

Bootfile: [alpha8400]as8000_v01.exe

             ***** Loadable Firmware Update Utility *****

-----------------------------------------------------------------------

Function  Description

-----------------------------------------------------------------------

Display     Displays the system's configuration table.

Exit        Return to loadable offline operating environment.

List        Lists the device types and firmware revisions supported by
            this revision of LFU.

Modify      Modifies port parameters and device attributes.

Show        Displays device mnemonic, hardware and firmware revisions.

Update      Replaces current firmware with loadable data image.

Verify      Compares loadable and device images.

? or Help   Scrolls the function table.

-----------------------------------------------------------------------

UPD>


Use the show device command to find the name of the RRDCD drive.


Enter the boot command to boot LFU from the RRDCD drive. This drive has the device name dkd400.


Enter the directory and file name of the utility. The directory name depends on the system model: [alpha8200] for the AlphaServer 8200 or [alpha8400] for the AlphaServer 8400. The file name of the utility is as8000_v01.exe, regardless of the directory.

LFU starts, displays a summary of its commands, and issues its prompt (UPD>).


LFU List Command
TLSB Modules - AlphaServer 8200/8400

LFU List Command

UPD> list

Device         Current Revision    Filename            Update Revision

cixcd0             3               cixcd_fw                4

demna0             8.3             demna_fw                8.3

kcm440             3.0             kcm44_fw                3.1

kn7cc-ab0          1.0-x           kn7cc_fw                1.0-x

kzpsa0            A02_1            kzpsa_fw                A06

UPD>


Current Revision - The revision of the devices current firmware


Filename - The name of the file that is recommended for updating that firmware


Update Revision - The revision of the firmware update


LFU Update Command
TLSB Modules - AlphaServer 8200/8400

LFU Update Command

The latest firmware is available for downloading. Click for information.

CAUTION: Never abort an update operation. Aborting corrupts the firmware on the module.

UPD> update kn7cc-ab0

Confirm update on:

kn7cc-ab0

[Y/(N)]y

WARNING: updates may take several minutes to complete for each device.

                          DO NOT ABORT!

kn7cc-ab0       update rev 2.0-1543 is less than current rev 2.0-1545.

Continue [Y/(N)] y

kn7cc-ab0       Updating to 2.0-1543... Verifying 2.0-1543... PASSED.

UPD> update kzpsa0

Confirm update on:

kzpsa0

[Y/(N)]y

WARNING: updates may take several minutes to complete for each device.

                          DO NOT ABORT!

kzpsa0          Updating to A06...  FAILED.

UPD> exit

Errors occurred during update with the following devices:

kzpsa0

Do you want to continue to exit?

Continue [Y/(N)]y

Initializing...
[self-test display appears]

UPD> update

confirm update on:

cixcd0

demna0

unknown2

kdm700

[Y/(N)]n

UPD> update cixcd0 -path kdm70_fw

Confirm update on:

cixdc0

[Y/(N)]y

WARNING: updates may take several minutes to complete for each device.

                          DO NOT ABORT!

cixdc0            firmware filename 'kdm70_fw' is bad

UPD>


This command requests a firmware update for a specific module. If you want to update more than one device, you may use a wildcard but not a list. For example, update k* updates all devices with names beginning with k, and update * updates all devices.


LFU requires you to confirm the update. The default is no.


Status message reports update and verification progress.


This is a second example.


The update failed. This could indicate a bad device.


When you do not specify a device name, LFU tries to update all devices.


LFU lists the selected devices to update and prompts before devices are updated.


In this next example, the -path option is used to update a device with different firmware from the LFU default. A network location for the firmware file can be specified with the -path option. In this example the firmware filename is not a valid file for the device specified.


LFU Exit Command
TLSB Modules - AlphaServer 8200/8400

LFU Exit Command

UPD> exit

Initializing...

[self-test display appears]

P00>>>

UPD> update kzpsa0

Confirm update on:

kzpsa0

[Y/(N)]y

WARNING: updates may take several minutes to complete for each device.

                          DO NOT ABORT!

kzpsa0          Updating to A06...  FAILED.

UPD> exit

Errors occurred during update with the following devices:

kzpsa0

Do you want to continue to exit?

Continue [Y/(N)]y

Initializing...

[self-test display appears]

P00>>>


At the UPD> prompt, exit causes the system to be initialized.


The console prompt appears.


Errors occurred during an update.


Because of the errors, confirmation of the exit is required.


Typing y causes the system to be initialized and the console prompt to appear.


LFU Display and Verify Commands
TLSB Modules - AlphaServer 8200/8400

LFU Display and Verify Commands

UPD> display

         Name                  Type   Rev  Mnemonic

   TLSB

   2-+   KN7CC-AB              8014  0000  kn7cc-ab0

   3+    MS7CC                 5000  0000  ms7cc0

   5+    MS7CC                 5000  0000  ms7cc1

   7+    KFTHA                 2000  0036  kftha0

   8+    KFTIA                 2020  0000  kftia0

   C0 Internal PCI connected to kftia0     pci0

   0+    ISP1020           10201077  0001  isp0

   1+    ISP1020           10201077  0001  isp1

   2+    DECchip 21040-AA     21011  0023  tulip0

   4+    ISP1020           10201077  0001  isp2

   5+    ISP1020           10201077  0001  isp3

   6+    DECchip 21040-AA     21011  0023  tulip1

   7+    PCI NVRAM            71011  0000  pci_nvram0

   C4 XMI connected to kftha0              xmi0

   2+    DEMNA                  C03  0803  demna0

   4+    CIXCD                  C2F  0311  cixcd0

   8+    DWLMA                 102A  0105  dwlma0

   A+    KCM44                  C22  5E50  kcm440

   C7 PCI connected to kftha0              pci1

   6+    DECchip 21040-AA     21011  0023  tulip2

   A+    KZPSA                81011  0000  kzpsa0

UPD> verify kzpsa0

kzpsa0          Verifying A06...  PASSED.

UPD>


Display shows the system physical configuration. Display is equivalent to issuing the console command show configuration. Because it shows the slot for each module, display can help you identify the location of a device.


Verify reads the firmware from the module into memory and compares it with the update firmware on the CD-ROM. If a module already verified successfully when you updated it, but later failed self-test, you can use verify to tell whether the firmware has become corrupted.


How to Update Corrupted Firmware
TLSB Modules - AlphaServer 8200/8400

How to Update Corrupted Firmware

The latest firmware is available for downloading. Click for information.

UPD> display

        Name           Type   Rev  Mnemonic

  TLSB

  0+    KN7CC-AA       8011  0000  kn7cc-aa0

  4+    MS7CC          5000  0000  ms7cc0

  6+    MS7CC          5000  0000  ms7cc1

  8+    KFTHA          2000  0000  kftha0

  C0 XMI                           xmi0

  2+    ?????           810  A4A6  unknown0

  8+    DWLMA          102A  0003  dwlma0

  C+    KDM70           C22  2B01  kdm700

  E+    DEMNA           C03  0803  demna0

  C3 XMI                           xmi1

  1+    DEMFA           823  9120  demfa0

  2+    ?????           810  A4A6  unknown1

  8+    DWLMA          102A  0104  dwlma1

  A+    KCM44           C22  69F1  kcm440

  C-    ?????          FDFF  FFFF  unknown2

  E+    CIXCD           C2F  0211  cixcd0

UPD> update unknown*

Confirm update on:

unknown2

[Y/(N)]y

WARNING: updates may take several minutes to complete for each device.

                          DO NOT ABORT!

unknown2          Updating to 2...  Verifying 2...  PASSED.

UPD> exit

Initializing...

[self-test display appears]

P00>>> sho config

        Name           Type   Rev  Mnemonic

  TLSB

  0+    KN7CC-AA       8011  0000  kn7cc-aa0

  4+    MS7CC          5000  0000  ms7cc0

  6+    MS7CC          5000  0000  ms7cc1

  8+    KFTHA          2000  0000  kftha0

  C0 XMI                           xmi0

  2+    ?????           810  A4A6  unknown0

  8+    DWLMA          102A  0003  dwlma0

  C+    KDM70           C22  2B01  kdm700

  E+    DEMNA           C03  0803  demna0

  C3 XMI                           xmi1

  1+    DEMFA           823  9120  demfa0

  2+    ?????           810  A4A6  unknown1

  8+    DWLMA          102A  0104  dwlma1

  A+    KCM44           C22  69F1  kcm440

  C+    CIXCD           C2F  0211  cixcd0

  E+    CIXCD           C2F  0211  cixcd1

UPD>


Issue the display command. The display indicates an unknown device - LFU is unable to recognize the device type. You can identify the unknown device by looking at the physical configuration.


Display shows that the unknown devices are in slot 2 of the first XMI bus and slots 2 and 12 of the second XMI.


Issue the command update unknown*.


Status message indicates that the update succeeded.


To make the device known, initialize the system by exiting LFU.


The modules in slot 2 of the first XMI and slot 2 of the second are still unknown. The console either does not support or does not recognize these devices. (The device may be new and not supported by the console installed. Check the current list of supported devices and upgrade the console revision if necessary.)


Initialization has made the device known to the system.  The previously unknown device is now assigned device mnemonic cixcd0 by the system.  The previous cixcd0 is now cixcd1.


How to Modify Device Attributes
TLSB Modules - AlphaServer 8200/8400

How to Modify Device Attributes

UPD> modify kzmsa0

kzmsa0

        Local Console:                   ENABLED

        Local Console:                   ENABLED

        Log Selftest Errors:             ENABLED

        Log NRC 53C710 RBD Errors:       ENABLED

        Log XMI RBD Errors:              ENABLED

        Log XZA RBD Errors:              ENABLED

        RBD Error Logging:               DISABLED

        RBD Error Frame Overflow:        ENABLED         Read Only

        Hard Error Frame Overflow:       ENABLED         Read Only

        Soft Error Frame Overflow:       DISABLED        Read Only

        FW Update Error Frame Overflow:  DISABLED        Read Only

        Disable Reset Channel 0:         DISABLED

        Disable Reset Channel 1:         DISABLED

        Chnl 0 Fast SCSI:                DISABLED

        Chnl 1 Fast SCSI:                DISABLED

        Channel_0 ID:                    07

        Channel_1 ID:                    07

        Module Serial Number:            abcdefghi

Do you wish to modify any of these parameters? [y/(n)] y

    Local Console:                   ENABLED         Change? [y/(n)]

    Log Selftest Errors:             ENABLED         Change? [y/(n)]

    Log NRC 53C710 RBD Errors:       ENABLED         Change? [y/(n)] y

    Log XMI RBD Errors:              ENABLED         Change? [y/(n)]

    Log XZA RBD Errors:              ENABLED         Change? [y/(n)]

    RBD Error Logging:               DISABLED        Change? [y/(n)]

    Disable Reset Channel 0:         DISABLED        Change? [y/(n)]

    Disable Reset Channel 1:         DISABLED        Change? [y/(n)]

    Chnl 0 Fast SCSI:                DISABLED        Change? [y/(n)]

    Chnl 1 Fast SCSI:                DISABLED        Change? [y/(n)]

    Channel_0 ID:                    07         Change? [y/(n)]

    Channel_1 ID:                    07         Change? [y/(n)]

    Module Serial Number:            abcdefghi   X   Change? [y/(n)]

    Local Console:                   ENABLED

    Local Console:                   ENABLED

    Log Selftest Errors:             ENABLED

    Log NRC 53C710 RBD Errors:       DISABLED

    Log XMI RBD Errors:              ENABLED

    Log XZA RBD Errors:              ENABLED

    RBD Error Logging:               DISABLED

    RBD Error Frame Overflow:        ENABLED         Read Only

    Hard Error Frame Overflow:       ENABLED         Read Only

    Soft Error Frame Overflow:       DISABLED        Read Only

    FW Update Error Frame Overflow:  DISABLED        Read Only

    Disable Reset Channel 0:         DISABLED

    Disable Reset Channel 1:         DISABLED

    Chnl 0 Fast SCSI:                DISABLED

    Chnl 1 Fast SCSI:                DISABLED

    Channel_0 ID:                    07

    Channel_1 ID:                    07

    Module Serial Number:            abcdefghi

Modify kzmsa0 with these parameter values? [y/(n)] y

UPD>


When you modify the KZMSA, LFU first displays all the parameters.


LFU asks if you want to modify any parameter values. The default response is no.


LFU prompts for parameters to modify. This example modifies one parameter on the KZMSA0; logging of ROM-based diagnostic errors is now enabled.


LFU displays the list of parameters with modifications.


If these modified values are acceptable, type y.


Field-Replaceable Units
AlphaServer 8200

Field-Replaceable Units

Cabinet Front

FRUs that can be accessed from the front of the cabinet include the TLSB backplane and card cage, logic modules, the storage drawer, the control panel, CCL module, PCI and StorageWorks shelves, and the power regulators.

Cabinet Rear

FRUs that can be accessed from the rear of the cabinet include the TLSB backplane and card cage, the storage drawer, the blower, the power strip, PCI and StorageWorks shelves, and the power regulators.

Processor System Unit

The processor system unit includes the BA656 storage drawer, the control panel, the floppy drive, the TLSB backplane assembly, the CCL, terminator, and clock modules, and the blower.

PCI Shelf

The PCI shelf includes the motherboard, power board, and option boards.

StorageWorks Shelf

The StorageWorks shelf includes StorageWorks disks, power supply, and controller.

Power Regulator

The power regulator includes the charger board and two battery packs.

Cables

This system uses up to 17 different cables. A table with part numbers and locations is provided.


FRUs in the Front of the Cabinet
AlphaServer 8200

FRUs in the Front of the Cabinet

Click for a list of FRUs, or click a callout on the illustration for the name and part number of that FRU.

See also

Main cabinet configuration rules

Expander cabinet configuration rules


FRUs in the Front of the Cabinet

1	70-31086-01	5-slot card cage and TLSB backplane
2	70-31087-01	Storage drawer
3	KFTIA	E2054-AA I/O module
	FRUs that may be included with the KFTIA module are:
	DJ-ML300-BA	NVRAM daughter card option
	DEFPZ-AA	FDDI (multimode fiber card) option
	DEFPZ-UA	FDDI (twisted-pair copper card) option
	BN20W-0B	Y cable for FWD SCSI connection (CK-KFTIA-AA is cable with one terminator)
4	KN7CC-AA or	E2056-CA single-processor module
	KN7CC-AB	E2056-DA dual-processor module
5	MS7CC-BA or	E2035-BA memory module 128 Mbytes (includes 16 54-21724-01 SIMMs)
	MS7CC-CA or	E2035-CA memory module 256 Mbytes (includes 32 54-21724-01 SIMMs)
	MS7CC-DA or	E2035-DA memory module 512 Mbytes (includes 16 54-21726-01 SIMMs)
	MS7CC-EA or	E2035-EA memory module 1 Gbyte (includes 32 54-21726-01 SIMMs)
	MS7CC-FA	E2036-AA memory module 2 Gbytes (includes 36 54-21718-01 SIMMs)
6	KFTHA-AA	E2052-AA I/O module
7	54-23459-01	Control panel
8	54-23461-01	CCL module
9	DWLPA-CA	PCI shelf
10	BA350-JB	StorageWorks shelf
11	H7266-AA	Space for optional power regulator
12	H7266-AA	Power regulator


70-31086-01	5-slot card cage and TLSB backplane


70-31087-01	Storage drawer


KFTIA	E2054-AA I/O module
FRUs that may be included with the KFTIA module are:

DJ-ML300-BA	NVRAM daughter card option
DEFPZ-AA	FDDI (multimode fiber card) option
DEFPZ-UA	FDDI (twisted-pair copper card) option
BN20W-0B	Y cable for FWD SCSI connection (CK-KFTIA-AA is cable with one terminator)


KN7CC-AA or	E2056-CA single-processor module
KN7CC-AB	E2056-DA dual-processor module


MS7CC-BA or	E2035-BA memory module 128 Mbytes (includes 16 54-21724-01 SIMMs)
MS7CC-CA or	E2035-CA memory module 256 Mbytes (includes 32 54-21724-01 SIMMs)
MS7CC-DA or	E2035-DA memory module 512 Mbytes (includes 16 54-21726-01 SIMMs)
MS7CC-EA or	E2035-EA memory module 1 Gbyte (includes 32 54-21726-01 SIMMs)
MS7CC-FA	E2036-AA memory module 2 Gbytes (includes 36 54-21718-01 SIMMs)


KFTHA-AA	E2052-AA I/O module


54-23459-01	Control panel


54-23461-01	CCL module


DWLPA-CA	PCI shelf


BA350-JB	StorageWorks shelf


H7266-AA	Space for optional power regulator


H7266-AA	Power regulator


FRUs in the Rear of the Cabinet
AlphaServer 8200

FRUs in the Rear of the Cabinet

Click for a list of FRUs, or click a callout on the illustration for the name and part number of that FRU.

See also

Main cabinet configuration rules

Expander cabinet configuration rules


FRUs in the Rear of the Cabinet

1	70-31086-01	5-slot card cage and TLSB backplane
2	70-31087-01	Storage drawer
3	12-41009-01	Blower
4	30-42075-01	Power strip (US/AP)
	30-42075-02	Power strip (Eur) (A power strip is included only in dual power regulator systems)
5	DWLPA-CA	PCI shelf
6	BA350-JB	StorageWorks shelf
7	H7266-AA	Space for optional power regulator
8	H7266-AA	Power regulator


70-31086-01	5-slot card cage and TLSB backplane


70-31087-01	Storage drawer


12-41009-01	Blower


30-42075-01	Power strip (US/AP)
30-42075-02	Power strip (Eur)
	(A power strip is included only in dual power regulator systems)


DWLPA-CA	PCI shelf


BA350-JB	StorageWorks shelf


H7266-AA	Space for optional power regulator


H7266-AA	Power regulator


FRUs in the Processor System Unit
AlphaServer 8200

FRUs in the Processor System Unit

Click for a list of FRUs, or click a callout on the illustration for the name and part number of that FRU.

See also

TLSB card cage and storage drawer configuration rules


FRUs in the Processor System Unit

1	70-31087-01	BA656 Storage drawer
		- CD-ROM drive
		- StorageWorks disks
		- StorageWorks power supply
2	54-23459-01	Control panel
3	RX26-AA	Floppy drive
4	70-31086-01	5-slot TLSB backplane assembly
5	54-23461-01	CCL module
6	E2034-AA	Terminator module
7	54-21728-01	Clock module
8	12-41009-01	Blower


70-31087-01	BA656 Storage drawer - CD-ROM drive - StorageWorks disks - StorageWorks power supply


54-23459-01	Control panel


RX26-AA	Floppy drive


70-31086-01	5-slot TLSB backplane assembly


54-23461-01	CCL module


E2034-AA	Terminator module


54-21728-01	Clock module


12-41009-01	Blower


FRUs in the PCI Shelf
AlphaServer 8200

FRUs in the PCI Shelf

Click for a list of FRUs, or click a callout on the illustration for the name and part number of that FRU.

See also

Shelf configuration rules

PCI shelf configuration rules


FRUs in the PCI Shelf

1	54-23468-01	DWLPA motherboard
2	54-23470-01	Power board
3	12-23609-19	Fan (2)


54-23468-01	DWLPA motherboard


54-23470-01	Power board


12-23609-19	Fan (2)


FRUs in the StorageWorks Shelf
AlphaServer 8200

FRUs in the StorageWorks Shelf

Click for a list of FRUs, or click a callout on the illustration for the name and part number of that FRU.

See also

Shelf configuration rules

StorageWorks shelf configuration rules


FRUs in the StorageWorks Shelf

1	BA35X-HB	Power supply
2		StorageWorks disks (click for information on finding part numbers)
3	DWZZA-VA	Controller


BA35X-HB	Power supply


StorageWorks disks (click for information on finding part numbers)


DWZZA-VA	Controller


FRUs in the Power Regulator
AlphaServer 8200

FRUs in the Power Regulator

Click for a list of FRUs, or click a callout on the illustration for the name and part number of that FRU.

See also

Power system configuration rules


FRUs in the Power Regulator

1	30-42756-01	Charger board
2	30-42856-01	Battery pack (2)


30-42756-01	Charger board


30-42856-01	Battery pack (2)


Cables
AlphaServer 8200

Cables

Cable	From	To
17-03122-01	TLSB P2	TLSB P1
17-03511-01	CCL	Expander cabinet
17-04018-01	Power regulator	PCI options, storage options, and CCL
17-04036-01	Power regulator	PSU bulkhead
17-04044-02	PCI power jumper (front)	PCI power jumper (rear)
17-04045-01	Power regulator	CCL
17-04046-01	Control panel	CCL
17-04048-01	CCL	TLSB card cage and PSU bulkhead
17-04049-01	BA656 storage drawer	PSU internal bulkhead
17-04050-01	CCL	Blower
17-04051-01	CCL	PSU internal bulkhead
17-04054-01	TLSB card cage	PSU internal bulkhead
17-04100-01	RX26 drive	KFE70 internal bulkhead
17-04101-01	RX26 drive	KFE70 internal bulkhead
17-04102-01	PCI option	KFE70 option
17-04103-01	CCL	PSU internal bulkhead
17-04178-01	PCI option	KFE70 option


Configuration Rules
AlphaServer 8200

Configuration Rules

Main Cabinet

The main cabinet includes the processor system unit, space for PCI I/O shelves or StorageWorks shelves, and power regulators.

Expander Cabinet

The expander cabinet looks like the main cabinet, but without the processor system unit or a control panel.  StorageWorks shelves or PCI I/O shelves may be installed in the space that would be occupied by the processor system unit.

Power System

The power system consists of a power regulator (with optional battery backup), distribution cables, and the cabinet control logic (CCL) module.  Each PCI shelf and StorageWorks shelf has its own power supply that generates DC voltages from the 48VDC cabinet power.

TLSB Card Cage and Storage Drawer

Both the TLSB card cage and the storage drawer are housed in the processor system unit (PSU).  The TLSB card cage has five module slots.  The storage drawer has space for six storage units.

I/O Interface

The I/O interface consists of an I/O module in the TLSB card cage and the I/O cable that connects the module to the I/O bus.

Shelves

PCI shelves and StorageWorks shelves are located in the main and expander cabinets. Both cabinets have space for shelves in the bottom.  The expander cabinet also has space in the top.

PCI Shelf

The PCI shelf houses a PCI card cage and power regulator.  The PCI shelf is in the bottom half of the main cabinet or expander cabinet.  Each shelf may contain PCI options only, or PCI and EISA options.  Only one PCI/EISA shelf is allowed in a system.

StorageWorks Shelf

The StorageWorks shelf houses disk drives and a power regulator.  StorageWorks shelves can be located in the bottom half of the main cabinet and in any shelf space available in the expander cabinet.


Main Cabinet Configuration Rules
AlphaServer 8200

Main Cabinet Configuration Rules

About the Main Cabinet

The main cabinet, H9A10-EA, contains the following components:

•	Processor system unit (PSU)

•	Space for PCI I/O shelves or StorageWorks shelves

•	Power regulators

A CD-ROM drive is mounted in the PSU storage drawer at the front of the cabinet.  This option connects to the single-ended SCSI port on the KFTIA module.

If the system includes a PCI shelf with a standard I/O module (PCI-to-EISA bridge), a floppy drive is mounted next to the control panel.

See also

FRUs accessible from the cabinet front

FRUs accessible from the cabinet rear

FRUs in the processor system unit

FRUs in the PCI shelf

FRUs in the StorageWorks shelf

FRUs in the power regulator


Main Cabinet


Expander Cabinet Configuration Rules
AlphaServer 8200

Expander Cabinet Configuration Rules

About the Expander Cabinet

The expander cabinet, H9B10-EA, is similar to the main cabinet; the contents, however, differ.  The expander cabinet does not have a processor system unit, but it does have a cabinet control panel mounted just above the power regulator.  The upper half of the cabinet can be filled with PCI or StorageWorks shelves.

Configuration Rules

•	Each system can have up to two expander cabinets.  The first expander cabinet is placed to the right of the main cabinet and the second to the left.

•	PCI shelves are installed in the space above the cabinet control panel.  StorageWorks shelves are installed above PCI shelves.

Redisplay expander cabinet illustration.

See also

FRUs accessible from the cabinet front

FRUs accessible from the cabinet rear

FRUs in the PCI shelf

FRUs in the StorageWorks shelf

FRUs in the power regulator


Expander Cabinet


System with Two Expander Cabinets (Front View)


Power System Configuration Rules
AlphaServer 8200

Power System Configuration Rules

About the Power System

•	The power system consists of one or two power regulators.  The second power regulator is for optional redundant power.

•	In a single power regulator system, the AC power cord plugs directly into the power regulator.  The system circuit breaker is located on the rear of the power regulator.

•	In a dual power regulator system, a power strip is mounted at the rear of the cabinet.  The power strip provides one AC power connection and the system circuit breaker.

•	The battery backup option is contained in the power regulator.

•	Power regulators cannot be warm swapped.

•	Each PCI shelf and StorageWorks shelf has its own power supply that generates the required DC voltages.

Redisplay power system illustration.

See also

FRUs in the power regulator


Power System


Power Strip


TLSB Card Cage and Storage Drawer Configuration Rules
AlphaServer 8200

TLSB Card Cage and Storage Drawer Configuration Rules

About the TLSB Card Cage

•	The TLSB card cage has slots for five modules.  These modules are a combination of processor (KN7CC), memory (MS7CC), and the I/O modules.

•	The maximum number of processor modules is three.

•	Uni- or dual-CPU modules are allowed in the following combinations: 1 CPU (uni-CPU module only), 2 CPUs (dual-CPU module only), 4 CPUs (two dual-CPU modules), 6 CPUs (three dual-CPU modules).  All CPUs must have the same speed and cache size.

•	The maximum number of memory modules is three.  Memory modules may reside in slots 5 through 7 only.

•	Each system must have one I/O module, which must be in slot 8.

•	The minimum configuration is one processor module, one memory module, and one I/O module.  In this configuration the processor module must be in slot 6, the memory module in slot 7, and the I/O module in slot 8.

•	A terminator module must be placed in any open slot in the TLSB card cage.

•	Modules are configured from the highest-numbered slot to the lowest (from slot 8 to slot 4).

•	Install modules in this order:

1	KFTIA (E2054-AA)

2	KFTHA (E2052-AA)

3	MS7CC (E2035-BA, -CA, -DA, or -EA or E2036-AA)

4	KN7CC (E2056-CA or -DA)

5	Terminator (E2034-AA)

About the Storage Drawer

•	The storage drawer contains one 5.25" slot, five 3.5" slots, and a power supply slot.

•	The 5.25" slot and one 3.5" slot are accessible from the front of the cabinet.  The remaining four 3.5" slots are accessible from the rear of the cabinet.

•	The CD-ROM drive is installed in the 5.25" slot.

•	A StorageWorks disk or tape option is installed in the 3.5" slot that is accessible from the front of the cabinet.

•	Up to four 3.5" hard disk drives can be installed in the four slots accessible from the rear of the cabinet.

See also

FRUs in the processor system unit


TLSB Card Cage and Storage Drawer


I/O Interface Configuration Rules
AlphaServer 8200

I/O Interface Configuration Rules

About the I/O Interface

The I/O interface consists of an I/O module (KFTIA) in slot 8 of the TLSB card cage and cabling for the I/O channels.

I/O Interface Configuration

•	The KFTIA can accommodate one I/O channel; the KFTHA can accommodate up to four I/O channels.

•	Each I/O bus is housed in an I/O shelf.

•	An I/O cable connects the I/O module to an I/O shelf; each I/O cable consists of two separate unidirectional interconnects.

•	The maximum length of each I/O cable is 3 meters (10 ft.).


I/O Interface


Shelf Configuration Rules
AlphaServer 8200

Shelf Configuration Rules

About Shelves

•	Shelves house options in the main and expander cabinets.  The options are:

−	PCI I/O devices

−	StorageWorks disk drives

•	Shelf space is located in the lower half of the main cabinet and in both halves of the expander cabinet.

•	Two StorageWorks shelves can occupy one shelf space; one shelf is installed from the front of the cabinet, the other shelf is installed from the rear of the cabinet.

•	One PCI shelf occupies one shelf space.

See also

FRUs in the PCI shelf

FRUs in the StorageWorks shelf


Shelves


PCI Shelf Configuration Rules
AlphaServer 8200

PCI Shelf Configuration Rules

About the PCI Shelf

•	The maximum number of PCI shelves in the main cabinet is 3.

•	The maximum number of PCI shelves in an expander cabinet is 4.

•	The maximum number of PCI shelves in a system is 11.

PCI Shelf Configuration Rules

•	Each PCI shelf occupies one front-to-rear shelf space.

PCI Configuration Rules

•	In a PCI configuration (no KFE70 and no EISA options), all 12 slots are available for PCI options.

•	In a PCI/EISA configuration, a maximum of 10 slots are available for PCI or EISA options.  Slots 0 and 2 are reserved for the standard I/O module and the connector module, respectively.

Redisplay PCI shelf illustration.

See also

FRUs in the PCI shelf


PCI/EISA Configuration Rules (KFE70 Installed)

Slot	Usage
0	Standard I/O module (PCI-to-EISA bridge)
1	EISA option only
2	Connector module (floppy, keyboard, and mouse)
3	EISA option only
4	PCI or EISA option
5	PCI or EISA option
6	PCI option only
7	PCI or EISA option
8	PCI or EISA option
9	PCI or EISA option
10	PCI option only
11	PCI or EISA option


PCI Shelf and Slot Assignments


StorageWorks Shelf Configuration Rules
AlphaServer 8200

StorageWorks Shelf Configuration Rules

About the StorageWorks Shelf

•	The maximum number of StorageWorks shelves in the main cabinet is six.

•	The maximum number of StorageWorks shelves in an expander cabinet is sixteen.

•	Each shelf contains seven storage slots and one slot for the power regulator.

StorageWorks Shelf Configuration Rules

Two StorageWorks shelves can be installed in one shelf space.  One shelf is installed at the front of the cabinet; the other is installed at the rear of the cabinet.

See also

FRUs in the StorageWorks shelf


StorageWorks Shelf


Power System
AlphaServer 8200

Power System

Power Regulator Removal and Replacement

The power regulator is very heavy. Two people are required to remove the power regulator from the cabinet.

BBU Option - Battery Pack Removal and Replacement

You must replace the BBU option battery packs every two years.  Be careful when removing the battery packs; they are very heavy.

BBU Option - Charger Board Removal and Replacement

The charger board is located at the left rear corner of the power regulator.  You must also remove the daughter card, which is attached to the side of the unit.

Power Strip Removal and Replacement

The power strip is attached to the rear of the cabinet by four screws.  The power strip is installed in dual-power regulator systems only.

Blower Removal and Replacement

The blower is attached to the PSU by 13 Phillips screws.  Access to some of these screws is difficult.  You will need a 1/4 inch drive ratchet with a 12 inch extension and a long Phillips screwdriver.


Power Regulator Removal and Replacement
AlphaServer 8200

Power Regulator Removal and Replacement

Removal

1	Open the front cabinet door and remove the rear door.

2	Push the control panel On/Off button to Off.

3	Shut the power regulator circuit breaker off by pushing down on the handle, and disconnect the AC power cord.

NOTE:  In a dual power regulator system, shut the power strip circuit breaker off, and then shut off each circuit breaker on the two power regulators.

4	At the front of the cabinet, disconnect the two 48 VDC cables from the power regulator.

5	Disconnect the 17-04045-01 signal cable from the power regulator.

6	In a dual power regulator system, disconnect the CURRENT SHARE cable and the two 48 VDC cables.

7	Remove the two Phillips screws that attach the power regulator to the cabinet brackets.

8	Clip the tie-wraps that secure the cables to the front of the power regulator.

9	At the rear of the cabinet, disconnect the power cord.

10	Carefully slide the power regulator out from the rear of the cabinet.

Replacement

Reverse the steps in the Removal procedure.


BBU Option - Battery Pack Removal and Replacement
AlphaServer 8200

BBU Option - Battery Pack Removal and Replacement

Removal

1	Remove the power regulator. (Click for instructions. )

2	Remove the power regulator air outlet screen (two flathead screws from the side of the unit and 2 pan head screws from the rear of the unit).

CAUTION:  Each battery pack provides 72 volts of potential, even with the main power cable disconnected.

3	Unplug the battery cables.

4	Remove the battery baffle by removing 2 flathead screws from the side of the unit and 2 nuts from the internal rear panel.

CAUTION:  The battery packs are very heavy.  Handle with extreme caution.

5	Remove the battery packs from the chassis by removing the pack on the right first and then sliding the left battery pack into the empty space to remove it.

Replacement

Reverse the steps in the Removal procedure.

Verification

Check the power regulator LEDs.  The BATTERY CHARGING LED should be on or flashing; the REPLACE BATTERY LED should be off.

REPLACEMENT OF BATTERIES:  When batteries are replaced, use only batteries that are compatible with the products electrical requirements and recharging circuitry, if applicable.  Consult your local Digital Service Center for information and proper servicing.  Lithium batteries, if contained in this product, are subject to special precautions:

CAUTION:  There is a danger of explosion if battery is incorrectly replaced.  Replace only with same or equivalent type recommended by the manufacturer.  Dispose of used batteries according to local regulations, or consult your Digital Service Center.

BATTERY DISPOSAL:  Recycle or dispose of batteries contained in this product properly, in accordance with local regulations for the battery type as marked on the battery.  Prior to disposal or recycling, protect batteries against accidental short circuiting by affixing non-conductive tape across battery terminals or conductive surfaces.  If the battery is not marked, or if you require other information regarding batteries, consult your nearest Digital Service Center.


BBU Option - Charger Board Removal and Replacement
AlphaServer 8200

BBU Option - Charger Board Removal and Replacement

Removal

1	Shut down the operating system and push the control panel On/Off switch to Off.

2	Shut the power regulator circuit breaker off.  If the system has two power regulators, shut off both regulator circuit breakers and the power strip circuit breaker.  Disconnect the AC power cord.

3	Remove the power regulator. (Click for instructions. )

4	Remove the battery power connector plate by removing the two small Phillips screws.

5	Disconnect the 16-pin cable connector at J6 on the 2400 watt power supply.

6	Disconnect the three LED cables.

7	Disconnect the five cables (2 red, 3 black) connected to the AC power filter board.

8	Disconnect the 2-pin breaker sensor connector.

9	Remove the nine screws that attach the charger board and daughter card to the power regulator chassis.

10	Carefully lift the charger board up and toward the rear of the power regulator chassis.  Be careful not to scrape the daughter card on the standoffs.  Guide the battery power cables away from the other cables during removal.

Replacement

Reverse the steps in the Removal procedure.


Power Strip Removal and Replacement
AlphaServer 8200

Power Strip Removal and Replacement

Removal

1	Push the control panel On/Off button to Off.

2	Remove the rear cabinet door by loosening the two bolts at the bottom of the cabinet and lifting the door off the two brackets.

3	Unplug the power cord from the power strip and shut the circuit breaker off.

4	Shut the power regulator circuit breakers off by pushing down the handles.

5	Unplug the power cables from the power strip.

6	Remove the four Phillips screws that attach the power strip to the vertical rails.

Replacement

Reverse the steps in the Removal procedure.


Blower Removal and Replacement
AlphaServer 8200

Blower Removal and Replacement

Removal

1	Shut down the operating system and push the control panel On/Off button to Off.

2	Shut the circuit breaker off and disconnect the AC power cord.

3	Open the front door and remove the rear door by loosening the two bolts at the bottom of the cabinet and lifting the door off the two brackets.

4	Remove the control panel. (Click for instructions. )

5	Remove the CCL module. (Click for instructions. )

6	Disconnect the CCL-to-blower power cable.

7	At the rear of the cabinet, loosen the six Phillips screws (three on each side of the blower).  These screws attach the blower to the PSU.

8	Remove the four Phillips screws (two on each side of the blower) that attach the blower to the plate behind the control panel and CCL module.

9	Remove the three Phillips screws located just above the blower.

10	Remove the blower from the rear of the cabinet.

Replacement

Reverse the steps in the Removal procedure.


Processor System Unit
AlphaServer 8200

Processor System Unit

Clock Module Removal and Replacement

The clock module is attached to the TLSB card cage by two screws.  Access is from the rear of the cabinet.

Terminator Module Removal and Replacement

There are two terminator modules located at the rear of the TLSB card cage.

TLSB Card Cage Removal and Replacement

First, remove the storage drawer.  If necessary, remove the StorageWorks shelf and power strip.  Then remove the line filter.  After preparing the cabinet and removing the line filter, remove the TLSB card cage by loosening or removing eight screws.  Access is from the front and rear of the cabinet.

Storage Drawer Removal and Replacement

The storage drawer is attached to the processor system unit by two screws.  Remove the storage drawer from the front of the cabinet.


Clock Module Removal and Replacement
AlphaServer 8200

Clock Module Removal and Replacement

Removal

1	Shut down the operating system and push the control panel On/Off button to Off.

2	Shut the circuit breaker off and disconnect the AC power cord.

3	Remove the rear door by loosening the two bolts at the bottom of the cabinet and lifting the door off the two brackets.

4	Remove the TLSB card cage cover by loosening the two captive screws.

5	Disconnect the 17-03122-01 cable (J3) from the clock module.

6	Disconnect the power cable (J4) from the clock module.

7	Remove the two small Phillips screws that secure the clock module to the card cage.

8	Remove the clock module.

Replacement

Reverse the steps in the Removal procedure.


Terminator Module Removal and Replacement
AlphaServer 8200

Terminator Module Removal and Replacement

Removal

1	Open the front door.

2	Push the control panel On/Off button to Off.

3	Shut the circuit breaker off by pushing down the handle.

4	Remove the rear door by loosening the two bolts at the bottom of the cabinet and lifting the door off the two brackets.

5	Remove the TLSB card cage cover by loosening the two captive screws.

6	Disconnect the 17-03122-01 cable (J3) from the clock module.

7	Remove the screw that holds each lock-in handle in place.

8	Open the handles and gently pull the terminator module out.

Replacement

Reverse the steps in the Removal procedure.


TLSB Card Cage Removal and Replacement
AlphaServer 8200

TLSB Card Cage Removal and Replacement

Removal

1	Open the front door and remove the rear door by loosening the two bolts at the bottom of the cabinet and lifting the door off the two brackets.

2	Push the control panel On/Off button to Off.

3	Shut the circuit breaker off and disconnect the AC power cord.

4	Remove the storage drawer. (Click for instructions. )

5	If a StorageWorks shelf is located just below the PSU at the front of the cabinet, remove it.

6	If the system has a power strip, remove it.

7	Remove all modules from the TLSB card cage.

8	Remove the line filter cover plate at the bottom of the TLSB card cage by removing eight screws.

9	Disconnect the power leads from the input side of the line filter by removing two #6 kepnuts.

10	Remove the rear cover plate from the TLSB card cage by loosening the two captive screws.

11	Disconnect the clock module-to-CCL signal cable (17-04054-01).

12	Remove the safety shield by removing one kepnut.  The safety shield covers the power leads.

13	Disconnect the power leads from the output side of the line filter.

14	Loosen (but do not completely remove) the three kepnuts around the lower terminator module guide.

15	Place one hand under the line filter, and then remove the three loosened kepnuts.  The line filter then drops into your extended hand.

16	At the rear of the cabinet, loosen the three screws at the bottom of the card cage.

17	Remove the two screws at the top of the card cage.

18	At the front of the cabinet, remove the three flathead screws at the bottom of the card cage.

19	Gently lift the card cage out from the front of the cabinet.  The card cage sits in a recessed open area.  Be careful not to damage the gasket around the bottom of the card cage.

Replacement

Reverse the steps in the Removal procedure.


Storage Drawer Removal and Replacement
AlphaServer 8200

Storage Drawer Removal and Replacement

Removal

1	Shut down the operating system and push the control panel On/Off button to Off.

2	Shut the circuit breaker off and disconnect the AC power cord.

3	Open the front door and remove the rear door by loosening the two bolts at the bottom of the cabinet and lifting the door off the two brackets.

4	At the rear of the cabinet, loosen the screw securing the storage drawer.

5	At the front of the cabinet, disconnect and remove the StorageWorks power supply cable (17-04049-01).

6	Disconnect the single-ended SCSI cables.

7	Remove the screw securing the storage drawer.

8	Gently pull the storage drawer out from the front of the cabinet.

Replacement

Reverse the steps in the Removal procedure.


PCI Shelves
AlphaServer 8200

PCI Shelves

PCI Shelf Removal and Replacement

To access the fans, you must remove the the PCI shelf from the cabinet.

Fan Removal and Replacement

There are two PCI shelf fans.  To access the fans, remove the top cover and the fan tray assembly.

Option Board Removal and Replacement

Disconnect cables from the front of the PCI shelf, remove four screws (two each top and bottom) that hold the shelf in place, and extend the shelf fully on its slides. Release the quarter-turn screws on the side panel and open the shelf. Remove the option board from its connector.

Power Board Removal and Replacement

Disconnect cables from the front of the PCI shelf, remove four screws (two each top and bottom) that hold the shelf in place, and extend the shelf fully on its slides. Release the quarter-turn screws and open the side panel. Disconnect the cable to the line filter and remove the power board mounting screw.

Motherboard Removal and Replacement

Remove all option boards, the line filter, and the power board. Remove the 11 mounting screws, slide the motherboard to the right, and rotate the bottom toward you.


PCI Shelf Removal and Replacement
AlphaServer 8200

PCI Shelf Removal and Replacement

Removal

1	Shut down the system.  Disconnect any hose cables or external I/O cables from the PCI shelf.  Disconnect the power cable and clip the two tie-wraps that hold the cable to the cabinet rail.

2	Remove the four mounting screws.

3	Remove the eight bracket screws and gently lift the PCI shelf out of the cabinet.

4	Remove the six screws that connect the PCI shelf to the rail/slide assemblies.


Fan Removal and Replacement
AlphaServer 8200

Fan Removal and Replacement

Removal

1	To remove the top cover, turn the two quarter-turn fasteners to the left.

2	Disconnect the two fan power cable connectors.

3	Remove four screws to disconnect the fan tray assembly.

4	Clip the two tie-wraps.

5	Remove the four screws that secure the fan to the shelf.

Replacement

Reverse the steps in the Removal procedure.


StorageWorks Shelves
AlphaServer 8200

StorageWorks Shelves

StorageWorks Shelf Removal and Replacement

The StorageWorks shelf is secured to the cabinet vertical rails by four Phillips screws.

Disk Removal and Replacement

Press both mounting tabs in and slide the disk drive out of the shelf.  Use both hands to fully support the weight of the drive.

Power Supply Removal and Replacement

Disconnect the cable from the power supply.  Press the mounting tabs in and slide the power supply out of the shelf.  Use both hands to fully support the weight.


StorageWorks Shelf Removal and Replacement
AlphaServer 8200

StorageWorks Shelf Removal and Replacement

Removal

1	Open the front door.

2	Push the control panel On/Off button to Off.

3	Disconnect the power cable.

4	Remove the four Phillips screws that secure the shelf to the vertical rails.

5	Slide the shelf out of the cabinet.

Replacement

Reverse the steps in the Removal procedure.


Disk Removal and Replacement
AlphaServer 8200

Disk Removal and Replacement

Removal

1	Open the front door.

2	Push the control panel On/Off button to Off.

3	Press in both mounting tabs on the disk drive.

4	Slide the disk drive out of the shelf.

Replacement

1	Insert the disk in the guide slots.

2	Push the drive in until the mounting tabs lock in place.


Power Supply Removal and Replacement
AlphaServer 8200

Power Supply Removal and Replacement

Removal

1	Push the control panel On/Off button to Off.

2	Disconnect the input power cable from the power supply.

3	Press in both mounting tabs on the power supply.

4	Using both hands to support the weight, slide the power supply out of the shelf.

Replacement

1	Insert the power supply in the guide slots.

2	Push the power supply in until the mounting tabs lock in place.

3	Connect the input power cable.


Field-Replaceable Units
AlphaServer 8400

Field-Replaceable Units

Cabinet Front

FRUs that can be accessed from the front of the cabinet include the TLSB centerplane and card cage, the system clock module, some logic modules, the control panel, the power regulators, the blower, and some plug-in units.

Cabinet Rear

FRUs that can be accessed from the rear of the cabinet include the TLSB centerplane and card cage, some logic modules, the removable media device, the DC distribution box, the AC input box, the blower, and some plug-in units.

Battery Cabinet

The optional battery cabinet contains two battery plug-in units.

PCI Plug-In Unit

The PCI plug-in unit contains three kinds of FRUs, including the motherboard, power board, and option boards.

XMI Plug-In Unit

The XMI plug-in unit contains at least 11 FRUs, including the XMI backplane assembly, power regulators, logic modules, and cables.

Futurebus+ Plug-In Unit

The Futurebus+ plug-in unit contains four FRUs, including the backplane assembly, power regulators, and logic modules.

SCSI Storage Plug-In Unit

The SCSI storage plug-in unit contains four or more FRUs, including drives, one or two shelves, shelf power supply, and cables.

DSSI Disk Plug-In Unit

The DSSI disk plug-in unit contains 12 FRUs, including one or more disk bricks, disk drives, modules, HDAs, local disk converter, disk control panel, and cables.

Battery Plug-In Unit

The battery plug-in unit contains eight FRUs, including battery blocks, fuses, and cables.

Cables

The system uses up to 36 different cables. A table with part numbers and locations is provided. Note that some systems do not use every cable listed.


FRUS in the Front of the Cabinet
AlphaServer 8400

FRUS in the Front of the Cabinet

Click for a list of FRUs, or click a callout on the illustration for the name and part number of that FRU.

See also

Main cabinet configuration rules

Expander cabinet configuration rules

Single-phase power system configuration rules

Three-phase power system configuration rules

TLSB card cage configuration rules

XMI PIU configuration rules

SCSI storage PIU configuration rules

DSSI disk PIU configuration rules

Battery PIU configuration rules


FRUs in the Front of the Cabinet

1	70-29332-01	TLSB centerplane and card cage
2	54-21728-01	System clock module
3	KN7CC-AA or	E2056-CA single-processor module
	KN7CC-AB	E2056-DA dual-processor module
4	MS7CC-BA or	E2035-BA memory module 128 Mbytes (includes 16 54-21724-01 SIMMs)
	MS7CC-CA or	E2035-CA memory module 256 Mbytes (includes 32 54-21724-01 SIMMs)
	MS7CC-DA or	E2035-DA memory module 512 Mbytes (includes 16 54-21726-01 SIMMs)
	MS7CC-EA or	E2035-EA memory module 1 Gbytes (includes 32 54-21726-01 SIMMs)
	MS7CC-FA	E2036-AA memory module 2 Gbytes (includes 36 54-21718-01 SIMMs)
5	54-20306-01	Control panel
6	RRDCD-CA	CD-ROM drive (may include a KFE70-AA floppy drive)
7	30-39348-01 or	H7264 power regulator (single phase)
	30-33796-0x	H7263 power regulator (three phase)
8	12-35173-01	Blower
9	DWLMA-AA or	XMI plug-in unit (main cabinet)
	DWLMA-BA	XMI plug-in unit (expander cabinet)
10	BA655-AB or	SCSI disk plug-in unit
	BA654-AA	DSSI disk plug-in unit
11	H7237-AA	Battery plug-in unit (includes 1 to 3 H7238-AA battery packs)


70-29332-01	TLSB centerplane and card cage
Access to both the front and the rear of the cabinet is required.

The TLSB card cage is in the main cabinet only; it cannot be located in the expander cabinet.


54-21728-01	System clock module


KN7CC-AA or	E2056-CA single-processor module
KN7CC-AB	E2056-DA dual-processor module
The KN7CC module is in the main cabinet only; it cannot be located in the expander cabinet.


MS7CC-BA or	E2035-BA memory module 128 Mbytes (includes 16 54-21724-01 SIMMs)
MS7CC-CA or	E2035-CA memory module 256 Mbytes (includes 32 54-21724-01 SIMMs)
MS7CC-DA or	E2035-DA memory module 512 Mbytes (includes 16 54-21726-01 SIMMs)
MS7CC-EA or	E2035-EA memory module 1 Gbyte (includes 32 54-21726-01 SIMMs)
MS7CC-FA	E2036-AA memory module 2 Gbytes (includes 36 54-21718-01 SIMMs)
The MS7CC module is in the main cabinet only; it cannot be located in the expander cabinet. This module can be located in either the front or the rear of the cabinet.


54-20306-01	Control panel
The control panel is in the main cabinet only; it cannot be located in the expander cabinet.


RRDCD-CA	CD-ROM drive (may include a KFE70-AA floppy drive)
Access to both the front and the rear of the cabinet is required to remove and replace the CD-ROM drive.


30-39348-01 or	H7264 power regulator (single phase)
30-33796-0x	H7263 power regulator (three phase)


12-35173-01	Blower


DWLMA-xx	XMI plug-in unit
Replace -xx with -AA if the DWLMA is in the main cabinet or with -BA if it is in the expander cabinet.


BA655-AB or	SCSI disk plug-in unit
BA654-AA	DSSI disk plug-in unit
These PIUs can be located in the bottom front or bottom rear of the main cabinet or in the top or bottom (front or rear) of the expander cabinet.


H7237-AA	Battery plug-in unit (includes 1 to 3 H7238-AA battery packs)


FRUS in the Rear of the Cabinet
AlphaServer 8400

FRUS in the Rear of the Cabinet

Click for a list of FRUs, or click a callout on the illustration for the name and part number of that FRU.

See also

Main cabinet configuration rules

Expander cabinet configuration rules

Single-phase power system configuration rules

Three-phase power system configuration rules

TLSB card cage configuration rules

I/O interface configuration rules

PCI PIU configuration rules

XMI PIU configuration rules

Futurebus+ PIU configuration rules

SCSI storage PIU configuration rules

DSSI disk PIU configuration rules

Battery PIU configuration rules


FRUs in the Rear of the Cabinet

1	70-29332-01	TLSB centerplane and card cage
2	KFTIA-AA or	E2054-AA I/O module
	KFTHA-AA	E2052-AA I/O module
	FRUs that may be included with the KFTIA module are:
	DEFPZ-AA	Daughter card, SAS multi-mode fiber FDDI
	DEFPZ-UA	Daughter card, twisted-pair copper FDDI
	DJ-ML300-AA	Daughter card, NVRAM
	BN20W-0B	Y cable for FWD SCSI connection (CK-KFTIA-AA is cable with one terminator)
3	MS7CC-BA or	E2035-BA memory module 128 Mbytes (includes 16 54-21724-01 SIMMs)
	MS7CC-CA or	E2035-CA memory module 256 Mbytes (includes 32 54-21724-01 SIMMs)
	MS7CC-DA or	E2035-DA memory module 512 Mbytes (includes 16 54-21726-01 SIMMs)
	MS7CC-EA or	E2035-EA memory module 1 Gbyte (includes 32 54-21726-01 SIMMs)
	MS7CC-FA	E2036-AA memory module 2 Gbytes (includes 36 54-21718-01 SIMMs)
4	54-20300-01	Cabinet control logic module (CCL)
5	30-35143-01 and	DC distribution box
	12-17199-04	600 V fuse (three-phase only)
6	30-39579-02 or	AC distribution box (single-phase)
	30-33798-0x	AC input box (three-phase)
7	12-35173-01	Blower
8	DWLMA-xx or	XMI plug-in unit
	DWLAA-xx or	Futurebus+ plug-in unit
	DWLPA-xx	PCI plug-in unit
9	BA655-AB or	SCSI disk plug-in unit
	BA654-AA	DSSI disk plug-in unit
10	H7237-AA	Battery plug-in unit (includes 1 to 3 battery packs, H7238-AA)


70-29332-01	TLSB centerplane and card cage
Access to both the front and the rear of the cabinet is required.

This FRU is in the main cabinet only (cannot be located in the expander cabinet).


KFTIA-AA or KFTHA-AA	E2054-AA I/O module E2052-AA I/O module
FRUs that may be included with the KFTIA module are:

DEFPZ-AA DEFPZ-UA DJ-ML300-AA BN20W-0B	Daughter card, SAS multi-mode fiber FDDI Daughter card, twisted-pair copper FDDI Daughter card, NVRAM Y cable for FWD SCSI connection (CK-KFTIA-AA is cable with one terminator)
This FRU is in the main cabinet only (cannot be located in the expander cabinet).


MS7CC-BA or MS7CC-CA or MS7CC-DA or MS7CC-EA or MS7CC-FA	E2035-BA memory module 128 Mbytes (includes 16 54-21724-01 SIMMs) E2035-CA memory module 256 Mbytes (includes 32 54-21724-01 SIMMs) E2035-DA memory module 512 Mbytes (includes 16 54-21726-01 SIMMs) E2035-EA memory module 1 Gbyte (includes 32 54-21726-01 SIMMs) E2036-AA memory module 2 Gbytes (includes 36 54-21718-01 SIMMs)
This FRU is in the main cabinet only (cannot be located in the expander cabinet).

This FRU can be located in either the front or the rear of the cabinet.


54-20300-01	Cabinet control logic module (CCL)


30-35143-01 12-17199-04	DC distribution box and 600 V fuse (three-phase only)
Access to both the front and the rear of the cabinet is required.


30-39579-02 or 30-33798-0x	AC distribution box (single-phase) AC input box (three-phase)


12-35173-01	Blower
Access to both the front and the rear of the cabinet is required.


DWLMA-xx or DWLAA-xx or DWLPA-xx	XMI plug-in unit  Futurebus+ plug-in unit  PCI plug-in unit
Access to both the front and the rear of the cabinet is required (XMI PIU).

Replace -xx with -AA if in the main cabinet or with -BA if in the expander cabinet (XMI or FB PIU).

Replace -xx with -AA if in the main cabinet (second shelf is DWLPA-BA) or with -AB if in the expander cabinet (second shelf is DWLPA-BB) (PCI PIU).


BA655-AB or BA654-AA	SCSI disk plug-in unit DSSI disk plug-in unit
This FRU can be located in either the front or the rear of the cabinet.

Located in the bottom of the main cabinet or in the top or bottom of the expander cabinet.


H7237-AA	Battery plug-in unit (includes 1 to 3 battery packs, H7238-AA)
Access to both the front and the rear of the cabinet is required.


FRUS in the Battery Cabinet
AlphaServer 8400

FRUS in the Battery Cabinet

Click for a list of FRUs, or click a callout on the illustration for the name and part number of that FRU.

See also

Battery cabinet configuration rules


FRUs in the Battery Cabinet

H7237-AA	Battery plug-in unit (includes 1 to 3 battery packs, H7238-AA)


H7237-AA	Battery plug-in unit (includes 1 to 3 battery packs, H7238-AA)


FRUS in the XMI Plug-In Unit
AlphaServer 8400

FRUS in the XMI Plug-In Unit

Click for a list of FRUs, or click a callout on the illustration for the name and part number of that FRU.

NOTE:  A module with an XMI corner must be in slot 1 or 14 of the XMI card cage.

See also

Plug-in unit configuration rules

XMI PIU configuration rules


FRUs in the XMI Plug-In Unit

1	70-30396-01	XMI backplane assembly
2	30-36010-01	Module A (power regulator)
3	30-36009-01	Module B (power regulator)
4	T2028-AA	DWLMA module (TLSB to XMI - slot 8)
5	T2030-YA	Clock and arbitration module (slot 7)
6	17-03162-01	Signal cable
7	17-03163-01	48V power cable
8	17-03202-01	Power distribution cable (rear of PIU)
9	17-03416-01	+5VB jumper (rear of PIU)
10	17-03533-01	Bulkhead to XMI signal (rear of PIU)


70-30396-01	XMI backplane assembly


30-36010-01	Module A (power regulator)


30-36009-01	Module B (power regulator)


T2028-AA	DWLMA module (TLSB to XMI - slot 8)


T2030-YA	Clock and arbitration module (slot 7)


17-03162-01	Signal cable


17-03163-01	48V power cable


17-03202-01	Power distribution cable (rear of PIU)


17-03416-01	+5VB jumper (rear of PIU)


17-03533-01	Bulkhead to XMI signal (rear of PIU)


FRUS in the Futurebus+ Plug-In Unit
AlphaServer 8400

FRUS in the Futurebus+ Plug-In Unit

Click for a list of FRUs, or click a callout on the illustration for the name and part number of that FRU.

See also

Plug-in unit configuration rules

Futurebus+ PIU configuration rules


FRUs in the Futurebus+ Plug-In Unit

1	54-21662-01	Futurebus+ backplane assembly
2	30-36011-01	Module A2 (power regulator)
3	30-36009-01	Module B (power regulator)
4	B2003-AA	DWLAA module (TLSB to Futurebus+ - slot 5)


54-21662-01	Futurebus+ backplane assembly


30-36011-01	Module A2 (power regulator)


30-36009-01	Module B (power regulator)


B2003-AA	DWLAA module (TLSB to Futurebus+ - slot 5)


FRUS in the PCI Plug-In Unit
AlphaServer 8400

FRUS in the PCI Plug-In Unit

Click for a list of FRUs, or click a callout on the illustration for the name and part number of that FRU.

See also

Plug-in unit configuration rules

PCI PIU configuration rules


FRUs in the PCI Plug-In Unit

1	54-23468-01	Motherboard
2	54-23470-01	Power board
3	Options	Click for information on finding a list of supported options. (Connectors only are shown in the illustration.)


54-23468-01	Motherboard


54-23470-01	Power board


Options	Click for information on finding a list of supported options. (Connectors only are shown in the illustration.)


FRUS in the SCSI Storage Plug-In Unit
AlphaServer 8400

FRUS in the SCSI Storage Plug-In Unit

Click for a list of FRUs, or click a callout on the illustration for the name and part number of that FRU.

See also

Plug-in unit configuration rules

SCSI PIU configuration rules


FRUs in the SCSI Plug-In Unit

1	Drive	3.5-inch or 5.25-inch drive (Click for information on finding a list of supported drives.)
2	BA350-LA	Shelf
3	H7430-AA	Shelf power supply
4	17-03532-01	Power and signal cable


Drive	3.5-inch or 5.25-inch drive (Click for information on finding a list of supported drives.)


BA350-LA	Shelf


H7430-AA	Shelf power supply


17-03532-01	Power and signal cable


FRUS in the DSSI Disk Plug-In Unit
AlphaServer 8400

FRUS in the DSSI Disk Plug-In Unit

Click for a list of FRUs, or click a callout on the illustration for the name and part number of that FRU.

See also

Plug-in unit configuration rules

DSSI PIU configuration rules


FRUs in the DSSI Plug-In Unit

1	Brick	Disk brick
2	Drive	Disk drive (Click for information on finding a list of supported drives.)
3	54-20868-01	Local disk converter (LDC)
4	54-21664-01	Disk control panel
5	17-03417-01	RF73 signal
6	17-03418-01	LDC power
7	17-03419-01	LDC signal
8	17-03420-01	RF73 power
9	17-03423-01	Disk control panel to bulkhead
10	17-03424-01	DSSI bus
11	17-02382-0x	DSSI brick jumper cable (BC21Q-xx)
12	17-03422-01	Signal and power


Brick	Disk brick


Drive	Disk drive (Click for information on finding a list of supported drives.)


54-20868-01	Local disk converter (LDC) (in each brick)


54-21664-01	Disk control panel (in each brick)


17-03417-01	RF73 signal (in each brick)


17-03418-01	LDC power (in each brick)


17-03419-01	LDC signal (in each brick)


17-03420-01	RF73 power (in each brick)


17-03423-01	Disk control panel to bulkhead (in each brick)


17-03424-01	DSSI bus (in each brick)


17-02382-0x	DSSI brick jumper cable (BC21Q-xx)


17-03422-01	Signal and power (runs up the center rear of the PIU enclosure)


FRUS in the Battery Plug-In Unit
AlphaServer 8400

FRUS in the Battery Plug-In Unit

Click for a list of FRUs, or click a callout on the illustration for the name and part number of that FRU.

NOTE: The battery plug-in unit is shown without its enclosure.

See also

Plug-in unit configuration rules

Battery PIU configuration rules


FRUs in the Battery Plug-In Unit

1	H7238-AA	Battery block (contains four 12-36168-02 batteries)
2	12-39982-01	Fuse (LPN-RK-90)
3	17-03421-01	Battery sensor cable
4	17-03492-01	Intermediate cable, battery block A
5	17-03493-01	Intermediate cable, battery block B or C
6	17-03494-01	Power regulator A to battery block A
7	17-03494-02	Power regulator B to battery block B
8	17-03494-03	Power regulator C to battery block C


H7238-AA	Battery block (contains four 12-36168-02 batteries)


12-39982-01	Fuse (LPN-RK-90)


17-03421-01	Battery sensor cable


17-03492-01	Intermediate cable, battery block A


17-03493-01	Intermediate cable, battery block B or C


17-03494-01	Power regulator A to battery block A


17-03494-02	Power regulator B to battery block B


17-03494-03	Power regulator C to battery block C


Cables
AlphaServer 8400

Cables

Cable	Description	From	To
17-02440-01	Signal	LDC	CD-ROM
17-03085-01	I/O hose cable (2.9 m; 9.5 ft)	KFTIA or KFTHA	Plug-in unit in expander cabinet
17-03085-02	I/O hose cable (1.4 m; 4.5 ft)	KFTIA or KFTHA	Plug-in unit in main cabinet
17-03118-01	48V TLSB power	Power filter	DC distribution
17-03119-01	48V power/signal 4-to-1	DC distribution box	Plug-in units (Q1-Q4) & CCL
17-03120-01	Signal	Control panel	CCL
17-03121-01	Signal	CCL	TLSB bulkhead
17-03122-01	Signal	TLSB bulkhead	TLSB backplane
17-03123-01	Signal	Removable media box LDC	CCL
17-03124-01	Signal (three-phase expander cabinet)	AC input	CCL
17-03124-02	Signal (three-phase expander cabinet)	AC input	CCL
17-03125-01	Power	Power filter	TLSB backplane
17-03126-01	48V power/sense	DC distribution	Blower & CCL
17-03201-01	DEC power bus	Control panel	DEC power bus
17-03348-01	Signal	CD-ROM	Bulkhead
17-03442-01	Power/signal	DC distribution	PIUs (Q5-Q6) & CCL
17-03443-01	Power	LDC	Bulkhead
17-03444-01	Signal	LDC	Bulkhead
17-03499-05	Power cord, single-phase 60 Hz systems (US)	Wall	AC distribution
17-03500-02	Power cord, single-phase 50 Hz systems (Europe)	Wall	AC distribution
17-03508-01	Power	DC distribution	Removable media LDC
17-03511-02	Signal	54-21706-01 filter in expander cabinet	CCL in main cabinet
17-03511-03	Signal	54-21706-01 filter in expander cabinet	CCL in expander cabinet
17-03530-01	Signal	LDC	Bulkhead
17-03566-10	Signal	Removable media RX26 bulkhead	KFE70-AA
17-03566-19	Signal	Removable media	KFTIA
17-03590-01	Ribbon cable	Single-phase regulator	Interconnect card
17-03591-01	Clustered cables	Single-phase regulator	AC input box
17-04178-02	Power	RX26 bulkhead	KFE70-AA
BN21H-02	Signal (2 m; 6.5 ft)	KFTIA	Rear BA350
BN21H-0H	Signal (.75 m; 2.5 ft)	KFTIA	RRDCD-CA
BN21H-03	Signal (3 m; 9.8 ft)	KFTIA	Front BA350 or rear BA350 expander
BN21H-03	Signal (3 m; 9.8 ft)	DWLPA-AA/AB	Front BA350
BN21H-01	Signal (1 m; 3.3 ft)	DWLPA-AA/AB	Adjacent BA350
BN21K-02	Signal (2 m; 6.5 ft)	KFTIA	DWZZA in rear BA350
BN21K-03	Signal (3 m; 9.8 ft)	KFTIA	DWZZA in front BA350 or in rear BA350 expander


Configuration Rules
AlphaServer 8400

Configuration Rules

Main Cabinet

The main cabinet includes the cabinet control system and control panel, TLSB card cage with modules, power and cooling systems, and plug-in units.

Expander Cabinet

The expander cabinet looks like the main cabinet, but without a TLSB card cage or a control panel. Disk plug-in units may be installed in the space that would be occupied by the TLSB card cage.

Battery Cabinet

The battery cabinet holds two battery plug-in units. It is used when the lower PIU quadrants in the main and expander cabinets are filled with I/O or storage PIUs.

Single-Phase Power System

The single-phase power system consists of a 30-39579-02 AC distribution box and one or two H7264 power regulators. This power system does not support battery backup.

Three-Phase Power System

The three-phase power system consists of a 30-33798-0x AC input box, 30-35143-01 DC distribution box, and one or more H7263 power regulators. This power system supports battery backup.

TLSB Card Cage

The TLSB card cage contains nine module slots. The minimum configuration is a processor module in slot 0, a memory module in slot 7, an I/O module in slot 8, and terminator modules in all other slots. This section gives placement rules for other configurations.

I/O Interface

The I/O interface consists of the I/O modules in the TLSB card cage (some combination of KFTIA and KFTHA) and the I/O cables, which connect the I/O module to the I/O bus.

Plug-In Units

Plug-in units (PIUs) are located in the main and expander cabinets. Both cabinets have space for PIUs in the bottom. The expander cabinet also has PIU quadrants in the top.

PCI Plug-In Unit

The PCI PIU contains one or two PCI shelves or one PCI shelf and one SCSI shelf. The PCI PIU is located in the bottom rear of the main cabinet or expander cabinet.

XMI Plug-In Unit

The XMI PIU contains an XMI card cage and power regulators. The XMI PIU is located in the bottom of the main cabinet or expander cabinet.

Futurebus+ Plug-In Unit

The Futurebus+ PIU contains a Futurebus+ card cage and power regulators. The Futurebus+ PIU is located in the bottom rear of the main cabinet or expander cabinet.

SCSI Storage Plug-In Unit

The SCSI storage PIU contains a combination of 3.5-inch and 5.25-inch disk, tape, and CD-ROM drives. This PIU is located in the bottom of the main cabinet or in the top or bottom of the expander cabinet.

DSSI Disk Plug-In Unit

The DSSI disk PIU contains one to three bricks; each brick contains two 5.25-inch disk drives. This PIU is located in the bottom of the main cabinet or in the top or bottom of the expander cabinet.

Battery Plug-In Unit

The battery PIU contains one to three battery blocks; each block contains four batteries. The battery PIU is located in the bottom of the main cabinet or expander cabinet or in the battery cabinet.


Main Cabinet Configuration Rules
AlphaServer 8400

Main Cabinet Configuration Rules

About the Main Cabinet

The main cabinet, H9F00-FB/FC/FD/FE, contains the following components:

•	Cabinet control system, including control panel

•	TLSB card cage with processor, memory, I/O, and terminator modules

•	Power and cooling systems

•	One or more plug-in units for:

−	I/O

−	Disks

−	Batteries

The system must have a CD-ROM drive to use as an initial load device.

The main cabinet has four variants:

Cabinet Part Number	Regulator
H9F00-FB	Single phase
H9F00-FC	Three-phase, 120/208 V, 60 Hz (U.S.)
H9F00-FD	Three-phase, 220-240/380-415 V, 50 Hz (Europe)
H9F00-FE	Three-phase, 202 V, 50-60 Hz (Japan)
See also

FRUs in the cabinet front

FRUs in the cabinet rear


Main Cabinet


Expander Cabinet Configuration Rules
AlphaServer 8400

Expander Cabinet Configuration Rules

About the Expander Cabinet

The expander cabinet, H9F00-BA/BB/BC/BD, is similar to the main cabinet; the contents, however, differ. The expander cabinet does not have a TLSB card cage or a control panel, and it can have disk plug-in units in the upper part of the cabinet. The second letter of each variant identifies the power regulator:

Cabinet Part Number	Regulator
H9F00-BD	Single phase
H9F00-BA	Three-phase, 120/208 V, 60 Hz (U.S.)
H9F00-BB	Three-phase, 220-240/380-415 V, 50 Hz (Europe)
H9F00-BC	Three-phase, 202 V, 50-60 Hz (Japan)
Expander Cabinet Configuration Rules

•	Each system can have up to two expander cabinets. The first expander cabinet is placed to the right of the system cabinet and the second to the left.

•	The expander cabinet may contain a CD-ROM drive. If used, it is located in the front of the expander cabinet, at the top.

•	The configuration rules for the lower quadrants of the system cabinet also apply to the lower quadrants of the expander cabinet.

•	The only plug-in units that may be installed in the upper quadrants of the expander cabinet are the SCSI storage plug-in unit and the DSSI disk plug-in unit.

Redisplay expander cabinet illustration.

See also

FRUs in the cabinet front

FRUs in the cabinet rear


Expander Cabinet


System with Two Expander Cabinets (Front View)


Battery Cabinet Configuration Rules
AlphaServer 8400

Battery Cabinet Configuration Rules

About the Battery Cabinet

The battery cabinet, H9B00-AF, holds two battery plug-in units, each of which contains 12 batteries. This cabinet contains no logic modules.

The battery cabinet is the same height as, but narrower than, the main and expander cabinets.

See also

Battery cabinet placement

Battery PIU configuration rules

FRUs in the battery cabinet


Battery Cabinet


System with Two Battery Cabinets (Front View)


Single-Phase Power System Configuration Rules
AlphaServer 8400

Single-Phase Power System Configuration Rules

About the Single-Phase Power System

•	The single-phase power system consists of a 30-39579-02 AC distribution box and one or two H7264 power regulators.

•	This power system may be used only in systems that do not require battery backup.

•	The H7264 power regulator, unlike the H7263 regulator, does not provide status information. If the show power command is issued, the system responds as shown here:

P00>>> show power

Power Supply Status: No response to request

•	Each plug-in unit has a local power supply that generates the needed +5V and other miscellaneous DC voltages.

See also

FRUs in the cabinet front

FRUs in the cabinet rear


Single-Phase Power System


Three-Phase Power System Configuration Rules
AlphaServer 8400

Three-Phase Power System Configuration Rules

About the Three-Phase Power System

•	The three-phase power system consists of a 30-33798-0x AC input box, 30-35143-01 DC distribution box, and a minimum of one and a maximum of three H7263 power regulators.

•	The maximum system configuration requires two regulators; the third is for optional redundant power.

•	Power regulators cannot be warm swapped.

•	Each plug-in unit (with the exception of the battery plug-in unit) has a local power supply that generates the needed +5V and other miscellaneous DC voltages.

H7263 Power Regulator Configuration

When viewed from the front of the system cabinet, the leftmost power regulator (closest to the TLSB card cage) corresponds to phase A, the middle with phase B, and the rightmost with phase C. Power regulators are configured in manufacturing starting closest to the TLSB card cage and working to the right.

This platform, with one regulator installed, constitutes a true single-phase load. The load currents in three-phase power distribution need to be balanced. If necessary, reconfigure the regulators (and batteries, if the cabinet contains a battery plug-in unit) in multiple-system installations to balance the three-phase currents and to reduce stresses in the common neutral conductor.

See also

FRUs in the cabinet front

FRUs in the cabinet rear


Three-Phase Power System


TLSB Card Cage Configuration Rules
AlphaServer 8400

TLSB Card Cage Configuration Rules

About the TLSB Card Cage

•	The TLSB card cage has slots for nine modules. Modules used in this system are:

E2034-AA	Terminator
E2035-AA	Unpopulated memory mother board (for all but 2 Gbyte memory)
E2035-BA	128 Mbyte memory (MS7CC-BA)
E2035-CA	256 Mbyte memory (MS7CC-CA)
E2035-DA	512 Mbyte memory (MS7CC-DA)
E2035-EA	1 Gbyte memory (MS7CC-EA)
E2036-AA	2 Gbyte memory (MS7CC-FA)
E2052-AA	KFTHA (4 hose cables)
E2054-AA	KFTIA (1 hose, FWD SCSI, single-ended SCSI, NI, PCI)
E2056-CA	Single processor (KN7CC-AA)
E2056-DA	Dual processor (KN7CC-AB)

•	The maximum number of processor modules is six.

•	The maximum number of memory modules is seven. Memory modules may be placed in slots 1 through 7 only.

•	The maximum amount of memory is 14 Gbytes. All memory modules support two-way interleaving. Mixed sizes of memory modules may be installed in the TLSB card cage. The table shows the composition of memory options.

•	Each system must have a minimum of one I/O module, either KFTIA or KFTHA. The table shows placement of I/O modules.

•	The KFTIA module can have daughter cards for FDDI (SAS multimode fiber, DEFPZ-AA; or twisted-pair copper, DEFPZ-UA) and NVRAM (ML300-AA).

•	The minimum configuration is one processor module, one memory module, and one I/O module. In this configuration, the processor module must be in slot 0, the memory module in slot 7, and the I/O module in slot 8, and the rest of the slots must have terminator modules.

See also

Module placement rules

Memory module options

Placement of I/O modules

Configuration examples

FRUs in the cabinet front

FRUs in the cabinet rear


Module Placement Rules
AlphaServer 8400

Module Placement Rules

Configure modules in this order:

1	Place the processor modules first. Start at slot 0, and work up to slot 5.

2	Place the KFTIA modules next. The first KFTIA module goes in slot 8, a second in slot 7.

3	Place the KFTHA modules next. The first KFTHA module goes in the highest-numbered open slot, and any others in the next slots down to 6.

4	Place memory modules last. The first memory module goes in the highest-numbered open slot, the next in the lowest numbered open slot, and so on, alternating between highest- and lowest-numbered open slots.

5	Fill all remaining open slots with terminator modules.

See also

TLSB card cage

Memory module options

Placement of I/O modules

Configuration examples

FRUs in the cabinet front

FRUs in the cabinet rear


TLSB Card Cage (Top View)


Memory Module Options
AlphaServer 8400

Memory Module Options

		SIMMs
Module	Size	Qty	Part No.	Slots
E2035-BA	128 Mbyte	16	54-21724-01	J07-J11, J18-J23, J29-J33
E2035-CA	256 Mbyte	32	54-21724-01	J02-J11, J12-J23, J24-J33
E2035-DA	512 Mbyte	16	54-21726-01	J07-J11, J18-J23, J29-J33
E2035-EA	1 Gbyte	32	54-21726-01	J02-J11, J12-J23, J24-J33
E2036-AA	2 Gbyte	36	54-21718-01	J02-J37
See also

TLSB card cage

Module placement rules

Placement of I/O modules

Configuration examples

FRUs in the cabinet front

FRUs in the cabinet rear


Placement of I/O Modules
AlphaServer 8400

Placement of I/O Modules

NOTE:  Three KFTIA modules can be used in a system, but more optimal configurations consist of KFTIA modules with PCI options.

Number in System	Configuration
KFTIA	KFTHA	Slot 8	Slot 7	Slot 6
3	0	KFTIA	KFTIA	KFTIA
0	3	KFTHA	KFTHA	KFTHA
2	1	KFTIA	KFTIA	KFTHA
1	2	KFTIA	KFTHA	KFTHA
2	0	KFTIA	KFTIA	-
0	2	KFTHA	KFTHA	-
1	1	KFTIA	KFTHA	-
1	0	KFTIA	-	-
0	1	KFTHA	-	-
See also

TLSB card cage

Module placement rules

Memory module options

Configuration examples

FRUs in the cabinet front

FRUs in the cabinet rear


Configuration Examples
AlphaServer 8400

Configuration Examples

	Place modules in these slots:
Configuration	Processor	Memory	I/O	Terminator
1 KN7CC, 1 MS7CC, 1 I/O	0	7	8	1, 2, 3, 4, 5, 6
2 KN7CC, 1 MS7CC, 1 I/O	0, 1	7	8	2, 3, 4, 5, 6
1 KN7CC, 2 MS7CC, 1 I/O	0	1, 7	8	2, 3, 4, 5, 6
2 KN7CC, 3 MS7CC, 1 I/O	0, 1	2, 6, 7	8	3, 4, 5
2 KN7CC, 4 MS7CC, 1 I/O	0, 1	2, 3, 6, 7	8	4, 5
3 KN7CC, 3 MS7CC, 1 I/O	0, 1, 2	3, 6, 7	8	4, 5
4 KN7CC, 2 MS7CC, 1 I/O	0, 1, 2, 3	6, 7	8	4, 5
6 KN7CC, 2 MS7CC, 1 I/O	0, 1, 2, 3, 4, 5	6, 7	8	None
2 KN7CC, 2 MS7CC, 2 I/Os	0, 1	2, 6	7, 8	3, 4, 5
See also

TLSB card cage

Module placement rules

Memory module options

Placement of I/O modules

FRUs in the cabinet front

FRUs in the cabinet rear


I/O Interface Configuration Rules
AlphaServer 8400

I/O Interface Configuration Rules

About the KFTIA Interface

The KFTIA module has several I/O connections.

•	One I/O channel to support one I/O PIU. The maximum length of the cable is 3.65 meters (12 feet). This hose is always numbered 1; hose 0 is the virtual hose connecting the embedded PCI I/O devices.

•	Two twisted-pair Ethernet connections

•	One single-ended 8-bit SCSI connection

•	Three FWD SCSI connections

•	An optional FDDI connection

•	An optional NVRAM daughter card (4 Mbytes). If this option is installed, no NVRAM can be configured on the physical hose.

Any unused I/O connection on the KFTIA module must be terminated.

About the KFTHA Interface

The KFTHA modules can accommodate a maximum of four I/O channels, to support a maximum of four I/O plug-in units.

•	The KFTHA module can accommodate one to four I/O channels.

•	Each I/O bus is housed in a plug-in unit (PIU).

•	An I/O hose cable connects the KFTHA module to an I/O PIU.

•	The maximum length of each I/O cable is 3.65 meters (12 feet).

•	Each I/O cable consists of two separate unidirectional interconnects.


I/O Interface


Plug-In Unit Configuration Rules
AlphaServer 8400

Plug-In Unit Configuration Rules

About Plug-In Units

•	Plug-in units (PIUs) house options in the main and expander cabinets.

•	These options are housed in PIUs:

−	PCI bus

−	XMI bus

−	Futurebus+

−	SCSI storage devices

−	DSSI disks

−	Batteries

•	PIUs are located in the PIU quadrants, as shown in the illustration. The main cabinet has four PIU quadrants, and the expander cabinet has six.

•	The XMI and battery PIUs each require two quadrants; the Futurebus+, PCI, and disk PIUs each require one quadrant.

See also

PCI plug-in unit configuration rules

XMI plug-in unit configuration rules

Futurebus+ plug-in unit configuration rules

SCSI storage plug-in unit configuration rules

DSSI disk plug-in unit configuration rules

Battery plug-in unit configuration rules


Location of PIU Quadrants


PCI Plug-In Unit Configuration Rules
AlphaServer 8400

PCI Plug-In Unit Configuration Rules

About the PCI Plug-In Unit

•	The PCI PIU consists of an enclosure and one or two shelves. A PCI shelf consists of one 12-slot PCI card cage with a 48 VDC power converter and a hose connection.

•	The maximum number of PCI shelves in the main cabinet is four. The maximum number per system is 12 shelves.

•	Each PCI PIU requires at least one I/O cable connection. The I/O system can accommodate a maximum of four PCI shelves for each KFTHA and one PCI shelf for each KFTIA.

PCI PIU Configuration

•	Each PCI PIU uses one quadrant.

•	Only a SCSI storage PIU (BA655-AB) may be installed in the quadrant in front of the PCI PIU (Q1 or Q3).

•	Each PCI shelf fills half of the PCI PIU enclosure. The other half may hold a second PCI shelf (DWLPA-BA in the main cabinet or DWLPA-BB in the expander cabinet) or a BA658-AA StorageWorks shelf.

•	The PCI-to-hose interface is standard in every PCI shelf. It does not require a PCI slot.

•	One PCI shelf in a system can have an optional standard I/O module. The standard I/O module requires a floppy drive.

Redisplay PCI plug-in unit illustration.

PCI Configuration

•	Each PCI shelf has 12 slots for option modules and one reserved slot for the standard I/O module (PCI-to-EISA bridge).

•	In a PCI configuration (no KFE70 and no EISA options), all 12 slots are available for PCI options.

•	In a PCI/EISA configuration, a maximum of eight slots are available for PCI or EISA options.

•	Operating system-dependent configuration limits are listed in the Digital Systems and Options Catalog.

See also

FRUs in the PCI PIU


PCI Plug-In Unit


PCI Shelf and Slot Assignments


PCI/EISA Configuration (KFE70 Installed)

Slot	Usage
0	Standard I/O module (PCI-to-EISA bridge)
1	EISA option only
2	Connector module (floppy, keyboard, and mouse)
3	EISA option only
4	PCI or EISA option
5	PCI or EISA option
6	PCI option only
7	PCI or EISA option
8	PCI or EISA option
9	PCI or EISA option
10	PCI option only
11	PCI or EISA option


XMI Plug-In Unit Configuration Rules
AlphaServer 8400

XMI Plug-In Unit Configuration Rules

About the XMI Plug-In Unit

•	The maximum number of XMI PIUs per cabinet is two. The maximum per system is six.

•	Each XMI PIU requires one I/O cable connection. The I/O system can accommodate a maximum of four XMI PIUs for each KFTHA and one XMI PIU for each KFTIA.

XMI PIU Configuration

•	Each XMI PIU uses two quadrants (Q1 and Q2 or Q3 and Q4). The first is located in Q1 and Q2; the second in Q3 and Q4.

•	The XMI bulkhead has eight quad and four dual panels. When the PIU is located in Q1 and Q2, panel A1 (a quad panel) is used for the cable connection to the I/O module; when in Q3 and Q4, panel A5 (a dual panel) is used.

•	When the XMI PIU is located in Q3 and Q4, the pull knob for opening and closing the bulkhead door interferes with panels A1 and A2. Because of this, the following cabinet kits are the only ones permitted in locations A1 and A2:

−	CK-DEMNA-KN (Ethernet)

−	CK-KFMSB-LB (DSSI)

−	CK-KZMSA-LA (SCSI)

Redisplay XMI plug-in unit illustration.

XMI Configuration

•	Each XMI backplane has 12 slots of usable I/O space. The backplane has 14 slots, two of which are reserved for the T2030-YA and T2028-AA modules, leaving 12 slots for I/O.

•	The clock and arbitration module (T2030-YA) must be in slot 7.

•	The T2028-AA module, which is the interface between the TLSB and XMI buses, must be in slot 8.

•	The first option must be in either slot 1 or slot 14 to terminate the XMI bus. If the option is a two-module set, the module with the XMI corner must be in slot 1 or slot 14.

•	Operating system-dependent configuration limits are listed in the Digital Systems and Options Catalog.

See also

FRUs in the XMI PIU


XMI Plug-In Unit


Futurebus+ Plug-In Unit Configuration Rules
AlphaServer 8400

Futurebus+ Plug-In Unit Configuration Rules

About the Futurebus+ Plug-In Unit

•	The maximum number of Futurebus+ PIUs in the main cabinet is one. The maximum number per system is one.

•	Each Futurebus+ PIU requires one I/O cable connection.

Futurebus+ Configuration

•	Each Futurebus+ PIU uses one quadrant (Q2 or Q4).

•	Each Futurebus+ backplane has nine slots of usable I/O space. The backplane has 10 slots, one of which is reserved for the B2003-AA module, leaving nine slots for I/O.

•	The B2003-AA module must be in slot 5.

•	Operating system-dependent configuration limits are listed in the Digital Systems and Options Catalog.

Redisplay Futurebus+ plug-in unit illustration.

See also

FRUs in the Futurebus+ PIU


Futurebus+ Plug-In Unit


SCSI Storage Plug-In Unit Configuration Rules
AlphaServer 8400

SCSI Storage Plug-In Unit Configuration Rules

About the SCSI Storage Plug-In Unit

•	The maximum number of SCSI storage PIUs is three in the main cabinet and six in an expander cabinet.

•	Each SCSI disk PIU contains two shelves. Each shelf contains seven slots for disks and tapes, in any combination.

•	Each 3.5-inch device uses one slot.

•	Each 5.25-inch device uses three slots. See below for mounting restrictions.

SCSI Storage PIU Configuration

•	The SCSI disk PIU can use any quadrant.

•	The arrow on the rear panel of the PIU enclosure must point toward the blower. That is, the arrow must point up if the PIU is in Q1 through Q4; it must point down if the PIU is in Q5 or Q6.

•	Mounting restrictions for HSZ20, HSD05, HSD20, TZ85, TZ86, TZ87, TZK09, TZK10, TZK11, and RRDCD: If any of these devices are used in a SCSI storage PIU in Q1 or Q3 of either the main or expander cabinet, or in Q5 of an expander cabinet, they may be mounted only in the locations that are shaded in the illustration. Placement of these devices in any other position in these PIU quadrants will prevent the cabinet front door from closing properly.

Redisplay SCSI storage plug-in unit illustration.

See also

FRUs in the SCSI storage PIU


SCSI Storage Plug-In Unit


SCSI Mounting Restrictions


DSSI Disk Plug-In Unit Configuration Rules
AlphaServer 8400

DSSI Disk Plug-In Unit Configuration Rules

About the DSSI Disk Plug-In Unit

•	The maximum number of DSSI disk PIUs is three in the main cabinet and six in an expander cabinet.

•	Each DSSI disk PIU contains a minimum of one and a maximum of three bricks; each brick contains two 5.25-inch disk drives.

DSSI Disk PIU Configuration

•	The DSSI disk PIU can use any quadrant.

•	In the system cabinet or in the bottom of the expander cabinet, bricks are installed starting closest to the blower and working down.

•	In the top of the expander cabinet, bricks are installed starting closest to the blower and working up.

•	The arrow on the rear panel of the PIU enclosure must point toward the blower. That is, the arrow must point up if the PIU is in Q1 through Q4; it must point down if the PIU is in Q5 or Q6.

Redisplay DSSI disk plug-in unit illustration.

See also

FRUs in the DSSI storage PIU


DSSI Disk Plug-In Unit


Battery Plug-In Unit Configuration Rules
AlphaServer 8400

Battery Plug-In Unit Configuration Rules

About the Battery Plug-In Unit

•	The maximum number of battery PIUs is one in the main cabinet and one in each expander cabinet. The optional battery cabinet holds two battery PIUs.

•	Each battery PIU contains a minimum of one and a maximum of three blocks of batteries. Each block contains four batteries.

•	One block of batteries is required for each power regulator. When battery backup is used for the main cabinet, it is recommended that it also be used for the expander cabinets.

Battery PIU Configuration

•	The battery PIU uses two quadrants, Q3 and Q4.

•	The battery block labeled A in the illustration is in the rear when the battery PIU is installed in the cabinet. It consists of two batteries in the top tray and two batteries in the bottom. Battery block B is in the front when the PIU is installed in the cabinet. It consists of four batteries in the top tray. Battery block C is also in the front; it consists of four batteries in the bottom tray.

•	Battery block A corresponds to power regulator A, battery block B to power regulator B, and battery block C to power regulator C.

•	If you reconfigure the power regulators, you must also reconfigure the batteries.

Redisplay battery plug-in unit illustration.

See also

FRUs in the battery PIU


Battery Plug-In Unit


Cabinet Doors and Panels
AlphaServer 8400

Cabinet Doors and Panels

Door Removal and Replacement

Replace the doors only if they sustain cosmetic damage. The front and rear doors attach to the cabinet with spring-loaded latch pins.

Cable Cover Removal and Replacement

Replace the cable cover only if it sustains cosmetic damage. The cable cover attaches to the cabinet with quarter-turn Phillips screws.

Top Panel Removal and Replacement

The top panel attaches to the cabinet with one Phillips screw and four plastic snaps. Remove the top cover to gain access to some field-replaceable units or to replace the top air filter.

Air Filter Removal and Replacement

Remove the top panel, grasp the foam air filter, and pull it away from the top panel. No tools are required.

Side Panel Removal and Replacement

The side panel attaches to the cabinet with two bolts at the top and brackets on the inside of the panel.


Door Removal and Replacement
AlphaServer 8400

Door Removal and Replacement

Removal

1	Open the door.

2	Locate the spring-loaded latch  in the upper corner of the door. Pull the pin down.

3	Lift the bottom of the door off the hinge pin.

Replacement

Reverse the steps in the Removal section.


Cable Cover Removal and Replacement
AlphaServer 8400

Cable Cover Removal and Replacement

Removal

1	Remove the two screws (quarter-turn Phillips) - one in each of the upper corners of the cable cover.

2	Swing the cable cover down and remove it from the hinges on the bottom.

Replacement

Reverse the steps in the Removal section.


Top Panel Removal and Replacement
AlphaServer 8400

Top Panel Removal and Replacement

CAUTION: Obstructions on the top panel may cause the system to shut down.

Removal

1	Remove the screw (Phillips) at the rear of the top panel.

2	Lift the top panel until the plastic snaps disengage.

Replacement

1	Position the top panel on the cabinet and push it down until the plastic snaps engage.

2	Replace the screw removed in step 1 of the Removal section.


Air Filter Removal and Replacement
AlphaServer 8400

Air Filter Removal and Replacement

Removal

1	Remove the top panel. (Click for instructions. )

2	Grasp the foam air filter and pull it away from the top panel. No tools are required.

3	Discard the foam air filter.

Replacement

1	Lay the replacement air filter over the mesh on the top panel.

2	Push the edges of the foam under the edges of the opening.

3	Replace the top panel.


Side Panel Removal and Replacement
AlphaServer 8400

Side Panel Removal and Replacement

Removal

1	Remove the top panel. (Click for instructions. )

2	Use a 10 mm hex socket wrench to remove the bolts in the upper corners of the side panel.

3	Lift the panel up and away from the cabinet.

Replacement

1	Place the panel on the side of the cabinet so that all three brackets on the inside of the side panel rest in the U-shaped channels on the side of the cabinet.

2	Replace the bolts removed in step 2 of the Removal section.

3	Replace the top panel.


Cabinet Control System
AlphaServer 8400

Cabinet Control System

Control Panel Removal and Replacement

The control panel bezel attaches to the cabinet with two Phillips screws. The circuit board attaches to the back side of the bezel with four clips. Access is from the front of the cabinet.

CD-ROM Drive Removal and Replacement

The CD-ROM drive is housed in a box mounted on rails in the cabinet. Slotted captive screws hold the box in the cabinet; Phillips screws attach the top to the box and the CD-ROM drive to the box. Access is from the front of the cabinet.

Floppy Drive Removal and Replacement

Remove the control panel and CD-ROM drive. Remove the cables from the back of the floppy drive. Remove the four screws that attach the floppy drive bracket to the box and the four that attach the drive to the bracket.

Local Disk Converter Removal and Replacement

The local disk converter is mounted on the side of the CD-ROM drive box. Phillips screws attach the circuit board to the box. Access is from the front of the cabinet.

Cabinet Control Logic Module Removal and Replacement

The cabinet control logic (CCL) module is mounted on a slide plate with Phillips screws. The slide plate is held in place with slotted captive screws. Access is from the rear of the cabinet.


Control Panel Removal and Replacement
AlphaServer 8400

Control Panel Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Shut the circuit breaker off by pushing down the handle.

3	Ground yourself to the cabinet with an antistatic wrist strap.

4	Remove the two screws (Phillips) on the left side of the control panel.

5	Swing the left side of the panel toward you. Slide the assembly to the left to remove.

6	Disconnect the cables from the circuit board.

7	Place the control panel face down on a flat surface. Remove the circuit board by easing the clips away from the board and pulling the board up.

Replacement

Reverse the steps in the Removal procedure.

Verification

Power up the system and turn the keyswitch to Enable. Check that the Key On LED lights.


CD-ROM Drive Removal and Replacement
AlphaServer 8400

CD-ROM Drive Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Shut the circuit breaker off by pushing down the handle.

3	Remove all cable connectors from the rear of the box that houses the CD-ROM drive.

4	Remove the control panel. (Click for instructions. )

5	Loosen the two captive screws (slotted) at the lower sides of the box.

6	Slide the box out of the cabinet and place it on a stable work surface.

7	Remove the top cover of the box by removing the nine screws (Phillips) and lifting the cover off.

8	Disconnect the cables from the back of the drive.

9	Remove the four screws (Phillips) that hold the CD-ROM drive in place. There are two screws on each side of the box.

10	Slide the CD-ROM drive out of the box.

Replacement

Reverse the steps in the Removal procedure.

Verification

Boot LFU.


Floppy Drive Removal and Replacement
AlphaServer 8400

Floppy Drive Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Shut the circuit breaker off by pushing down the handle.

3	Remove the control panel and the CD assembly box and CD-ROM drive. (Click for instructions: control panel [image]     CD assembly box and CD-ROM drive [image])

4	Remove the two cables (power and signal) from the back of the floppy drive.

5	Remove the four screws that attach the floppy drive bracket to the box. (There are two screws on each side of the box.)

6	Remove the four screws that hold the floppy drive in the bracket.

7	Slide the floppy drive out of the bracket.

Replacement

Reverse the steps in the Removal procedure.

Verification

Run ECU. Place the ECU diskette in the floppy drive and type:

P00>>> set arc_enable on
P00>>> init
[self-test display appears]
P00>>> runecu	! Note that there is no space after run

Select exit from the menu.


Local Disk Converter Removal and Replacement
AlphaServer 8400

Local Disk Converter Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	Shut the circuit breaker off by pushing down the handle.

4	Remove all cable connectors from the rear of the box that holds the CD-ROM drive.

5	Remove the control panel. (Click for instructions. )

6	Loosen the two captive screws (slotted) at the lower sides of the box.

7	Slide the box out of the cabinet and place it on a stable work surface.

8	Remove the top cover of the box by removing the nine screws (Phillips) and lifting the cover off.

9	Disconnect the four cables from the local disk converter module.

10	Remove the local disk converter module by removing the four screws (Phillips) from the corners of the module. Use a long screwdriver, and insert it through the holes on the side of the box opposite the local disk converter module.

Replacement

Reverse the steps in the Removal procedure.

Verification

Boot LFU.


Cabinet Control Logic Module Removal and Replacement
AlphaServer 8400

Cabinet Control Logic Module Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Shut the circuit breaker off by pushing down the handle.

3	Ground yourself to the cabinet with an antistatic wrist strap.

4	At the rear of the system, remove the rear panel of the cabinet control system box.

5	If a DEC power bus cable is connected to the end of the slide plate on which the cabinet control logic module is mounted, remove the connector.

6	Remove all connectors from the cabinet control logic module.

7	Loosen the two captive screws (slotted) on the end of the slide plate.

8	Pull the slide plate out.

9	Remove the cabinet control logic module from the slide plate by removing the six screws (Phillips) that are in the corners and the center of each long side.

Replacement

Reverse the steps in the Removal procedure.

Verification

Power up the system and turn the keyswitch to Enable. Check that the Key On LED lights.


Power and Cooling Systems
AlphaServer 8400

Power and Cooling Systems

Single-Phase H7264 Power Regulator Removal and Replacement

Shut off the circuit breaker, detach the regulator from the bus bar, disconnect the cables, release the captive fastener, and slide the regulator out the front of the cabinet. Tools required: Phillips screwdriver, M5 nutdriver, 8 mm nutdriver.

Single-Phase AC Distribution Box Removal and Replacement

Shut off the circuit breaker, disconnect the power cord, disconnect the power cables on the front of the box, and release the captive fasteners on the back of the box. Tool required: Phillips screwdriver.

Three-Phase H7263 Power Regulator Removal and Replacement

The power regulators attach to the cabinet with Phillips captive screws. Access is from the front of the cabinet.

Three-Phase AC Input Box Removal and Replacement

The AC input box attaches to the cabinet with slotted captive screws; the ground strap attaches to the AC input box with an 8 mm nut. Removal and replacement require access to both the front and rear of the cabinet.

Three-Phase DC Distribution Box Removal and Replacement

The DC distribution box is installed in the cabinet with Phillips screws. Connections to the assembly use 8 mm and 10 mm nuts. Removal and replacement require access to both the front and rear of the cabinet.

Blower Removal and Replacement

The blower attaches to the cabinet with Phillips screws. Removal and replacement require two persons and access to the front and rear of the cabinet.


H7264 Power Regulator Removal and Replacement
AlphaServer 8400

H7264 Power Regulator Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	At the rear of the cabinet, shut off the system circuit breaker by pushing down on the handle.

4	Remove the bus bar cover by removing the two M5 nuts.

5	Remove and save the four 8 mm nuts that attach the regulator to the bus bar assembly. The four nuts on the right side of the bus bar are for PS2; those to the left are for PS1.

6	At the front of the cabinet, remove the cover from the power system box. Use a Phillips screwdriver to release the two quarter-turn fasteners. Lift the cover from the bottom slots.

7	Disconnect the signal cable.

8	Disconnect the power cable.

9	Release the captive fastener at the bottom front of the regulator.

10	Slide the regulator out the front of the power system box.

Replacement

1	Slide the replacement regulator between the guides in the front of the power system box.

2	Tighten the captive fastener at the bottom front of the regulator.

3	At the rear of the cabinet, attach the regulator to the bus bar assembly with the four reserved 8 mm nuts.

4	Replace the bus bar cover.

5	At the front of the cabinet, connect the power and signal cables.

6	Replace the cover on the power system box.

7	Turn on the system circuit breaker by pushing the handle up.

Verification

Power up the system and check that the MOD OK LED lights.


Single-Phase AC Distribution Box Removal and Replacement
AlphaServer 8400

Single-Phase AC Distribution Box Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	At the rear of the cabinet, turn off the system circuit breaker by pushing down on the handle.

4	Disconnect the power cord.

5	At the front of the cabinet, remove the cover from the power system box. Use a Phillips screwdriver to release the two quarter-turn fasteners. Lift the cover from the bottom slots.

6	Disconnect the AC power cable. The AC distribution box has one or two power cables, depending on the number of power regulators.

7	At the rear of the cabinet, use a Phillips screwdriver to release the captive fasteners.

Replacement

Reverse the steps in the Removal procedure.

Verification

Power up the system and check that the circuit breaker does not trip. Check that the LEDs on the power regulators light.


H7263 Power Regulator Removal and Replacement
AlphaServer 8400

H7263 Power Regulator Removal and Replacement

WARNING: The power regulator has a heated surface on one side.

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	At the rear of the cabinet, shut the circuit breaker off by pushing down the handle. To ensure that the circuit breaker is not unintentionally switched on again, flip the lockout tag down. Lock the tag in place with the padlock from the Electrical Safety Toolkit. Place the padlock in the bottom hole of the bracket on either side of the tag.

4	From the front of the cabinet, loosen the two captive screws (Phillips), one each at the top and bottom of the power regulator to be removed.

WARNING:  One side of the power regulator has a heated surface. Do not touch the side when removing the power regulator.

CAUTION:  The power regulator weighs 20 kg (40.4 lb). Because of the height of this unit in the cabinet, you should not remove the power regulator from the cabinet by yourself.

5	Slide the power regulator out from the front of the cabinet. There will be some resistance.

Replacement

1	From the front of the cabinet, seat the replacement power regulator in its slot and push it in as far as it will go without lifting the precharge stop. Wait 5 seconds, and then lift the precharge stop and push the power regulator in the rest of the way.

2	Tighten the captive screws at the top and bottom of the power regulator.

Verification

Power up the system and check that the top (green) LED on each power regulator lights.


Three-Phase AC Input Box Removal and Replacement
AlphaServer 8400

Three-Phase AC Input Box Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	At the rear of the cabinet, shut the circuit breaker off by pushing down the handle.

4	To ensure that the circuit breaker is not unintentionally switched on again, flip the lockout tag down. Lock the tag in place with the padlock from the Electrical Safety Toolkit. Place the padlock in the bottom hole of the bracket on either side of the tag.

5	Disconnect the system power cord.

6	From the front of the cabinet, remove all power regulators. (Click for instructions. ) To remove any filler modules, do the following:

a	Loosen the captive screws at the top and bottom of the filler module.

b	Grasp the handles and remove the filler module by sliding it forward.

7	Loosen the four captive screws on the front of the AC input box.

8	At the rear of the cabinet, remove the ground strap at the AC input box end (8 mm nut).

9	Remove the right plastic cover from the DC distribution box (above the AC input box).

10	Hold the AC input box to prevent it from falling. Pull the bracket attached to the DC distribution box up and push the bracket to the right to hold it in place. (This bracket is partially obscured by the left plastic cover on the DC distribution box. Do not remove this plastic cover.)

11	Remove the AC input box from the rear of the cabinet.

Replacement

Reverse the steps in the Removal procedure.

Verification

Power up the system and check that the circuit breaker does not trip.


Three-Phase DC Distribution Box Removal and Replacement
AlphaServer 8400

Three-Phase DC Distribution Box Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	At the rear of the cabinet, shut the circuit breaker off by pushing down the handle. To ensure that the circuit breaker stays off, flip the lockout tag down. Lock the tag in place with the padlock from the Electrical Safety Toolkit. Place the padlock in the bottom hole of the bracket on either side of the tag.

4	Disconnect the system power cord.

5	From the front of the cabinet, remove the power regulators. (Click for instructions. )

6	Remove the eight screws (Phillips) from the top and bottom flanges (four each).

7	From the rear of the cabinet, remove the AC input box. (Click for instructions. )

8	If this cabinet has a battery plug-in unit, do the following:

a	Remove the appropriate panel of the battery PIU. If you are working in battery block A, remove the rear panel; if battery block B or C, remove the front panel.

b	Break the main cable connection to the block of batteries in which you are working.

9	At the rear of the cabinet, remove the plastic covers from the battery terminals and the DC distribution bars.

10	Remove all 48VDC connections (8 mm nuts).

11	Disconnect any battery connections (10 mm nuts).

12	If present, disconnect the battery sense cable.

13	Disconnect the control/status cable.

14	Remove the four flathead screws (Phillips) from the floor of the enclosure.

15	Pull the DC distribution box out from the front.

Replacement

1	Reverse the steps in the Removal procedure. When reconnecting the 48 VDC and battery connections (steps 10 and 11 in the Removal procedure), torque the nuts to 2.5 newton-meters (22 inch-pounds).

2	Check that battery connections (step 11 in the Removal procedure) are correct.

3	Check that 48V connections (step 10 in the Removal procedure) are correct.

Verification

Power up the system and check that the yellow LED on the CCL module lights, that the PIU LEDs on the CCL module light, and that the blower turns on.


Blower Removal and Replacement
AlphaServer 8400

Blower Removal and Replacement

WARNING: The blower weighs 25 kg (55 lb).

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	Open the rear door of the cabinet. Shut the circuit breaker off. If the system has three-phase power, ensure that the circuit breaker is not unintentionally switched on again by flipping the lockout tag down and locking the tag in place with the padlock from the Electrical Safety Toolkit. Place the padlock in the bottom hole of the bracket on either side of the tag.

4	Remove the eight screws (Phillips) from the top and bottom blower flanges (four each).

5	Disconnect the 48V cable.

6	Remove the four screws (Phillips) in the tabs protruding from the bottom of the blower box.

WARNING:  The blower weighs 25 kg (55 lb). Do not remove the blower from the cabinet by yourself.

7	From the rear, push the blower assembly forward out of the cabinet 16 inches.

8	From the front of the cabinet and with one person on each side of the blower, use the handholds on the sides of the box to grasp and pull the blower assembly out the rest of the way.

Replacement

1	Apply silicone lubricant to the gaskets on the top and bottom surfaces of the replacement blower.

2	Orient the replacement blower so that the handholds in the box are at the bottom.

3	Reverse the steps in the Removal procedure.

Verification

Power up the system and check that the blower turns on.


TLSB Card Cage
AlphaServer 8400

TLSB Card Cage

System Clock Module Removal and Replacement

Remove all modules from the front of the card cage, disconnect the cables from the clock card, and remove the two Phillips screws from the clock card.

TLSB Card Cage Removal and Replacement

Remove all modules (front and rear), disconnect the cables from the front of the card cage, remove the system clock card, remove and save the mounting brackets, and slide the cage out from the front. You will need a Phillips head screwdriver and 8 mm and 10 mm nutdrivers.


System Clock Module Removal and Replacement
AlphaServer 8400

System Clock Module Removal and Replacement

Removal

1	Shut down the operating system. At the console prompt, find the system serial number:

P00>>> show sys_serial_num

Make a note of the response.

2	Turn the keyswitch to Disable.

3	Ground yourself to the cabinet with an antistatic wrist strap.

4	Remove all modules from the front of the card cage. (Click for instructions. )

5	Disconnect the power and CCL cables from the clock card.

6	Remove the two Phillips screws from the clock card. Save the screws.

7	Remove the clock module from the centerplane connector.

Replacement

1	Insert the replacement clock module in the centerplane connector.

2	Fasten the module in place with the reserved screws.

3	Connect the power and CCL cables. (The connectors are keyed.)

4	Replace the modules in the card cage. (Click for instructions. ) Be sure to insert the modules from left to right to avoid damaging the EMI gaskets.

5	Power up the system. At the console prompt set the system model number and serial number:

P00>>> set mode adv

P00>>> set sys_model_num 8400

P00>>> set sys_serial_num <number>

The variable <number> is the response you noted in step 1 of the Removal procedure.

Verification

Power up the system and check that the entire self-test display prints.


TLSB Card Cage Removal and Replacement
AlphaServer 8400

TLSB Card Cage Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	Note the locations of the modules in the card cage and remove the modules. (Click for instructions: processor, memory, and terminator [image]     KFTIA [image]     KFTHA [image].)

4	At the front of the card cage, use the 8 mm nutdriver to remove the terminal cover from the power posts. Using the 10 mm nutdriver, remove the nuts and washers that attach the power and ground cables to the power posts. Save the nuts and washers.

5	Disconnect the CCL cable.

6	Remove the clock card. (Click for instructions. )

7	At the front of the cabinet, use the Phillips head screwdriver to remove the top and bottom brackets from the card cage and the frame. Save the brackets and screws.

8	At the rear of the cabinet, remove the side and bottom brackets from the frame and from the card cage. Save the brackets and screws.

CAUTION:  The following step requires two people. Because of the height of the card cage in the cabinet, you should not remove this assembly from the cabinet by yourself.

9	Slide the card cage assembly out the front of the cabinet.

Replacement

1	Ground yourself to the cabinet with an antistatic wrist strap.

CAUTION: The following step requires two people. Because of the height of the card cage in the cabinet, you should not install this assembly in the cabinet by yourself.

2	From the front, slide the replacement card cage into the cabinet so that the label is at the top on the front and the power filter is to the left.

3	Attach the reserved front top and bottom brackets and the rear bottom bracket to the card cage using the reserved flathead screws.

NOTE: The rear bottom bracket is deeper than the front one. If these two brackets are swapped, the holes in the side rear bracket will not line up correctly in the next step.

4	At the rear of the cabinet, use the Phillips head screwdriver to loosely install the reserved side bracket to the frame with two reserved screws. Line up the other two holes in the bracket with the card cage holes and insert two reserved screws. Tighten all four screws. Attach the card cage to the frame at the bottom with three reserved screws.

5	At the front of the cabinet, use the Phillips head screwdriver to attach the card cage to the frame at the top and bottom with five reserved screws.

6	Install the clock card. (Click for instructions. )

7	Attach the CCL cable.

8	Use the 10 mm nutdriver and the reserved nuts to attach the power and ground cables to the power posts. (Place a washer behind the power cable connector and one in front of the connector, then attach and tighten the nut.) The yellow cable (+48 V) attaches to the top post; the gray cable (ground) attaches to the bottom post.

9	Use the 8 mm nutdriver and the reserved nuts to install the terminal cover over the power posts.

Verification

Power up the system and check that all modules appear in the self-test display. Enter the show configuration, show device, and test commands.


PCI Plug-In Unit
AlphaServer 8400

PCI Plug-In Unit

Option Board Removal and Replacement

Disconnect cables from the front of the PCI shelf, remove four screws (two each top and bottom) that hold the shelf in place, and extend the shelf fully on its slides. Release the quarter-turn screws on the side panel and open the shelf. Remove the option board from its connector.

Power Board Removal and Replacement

Disconnect cables from the front of the PCI shelf, remove four screws (two each top and bottom) that hold the shelf in place, and extend the shelf fully on its slides. Release the quarter-turn screws and open the side panel. Disconnect the cable to the line filter and remove the power board mounting screw.

Motherboard Removal and Replacement

Remove all option boards, the line filter, and the power board. Remove the 11 mounting screws, slide the motherboard to the right, and rotate the bottom toward you.


Option Board Removal and Replacement
AlphaServer 8200/8400

Option Board Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	Disconnect the two power connectors and any I/O cables that will prevent the shelf from fully extending on its slides.

4	Remove the two screws (Phillips) at the top and two at the bottom that hold the PCI shelf in place.

5	Slide the shelf out until the slides lock.

6	Loosen the two quarter-turn screws (Phillips) in the top corners of the side panel. Remove the side panel by holding it at the top and bottom and swinging it out from the top.

7	If you did not do so in step 3, disconnect the I/O cable from the option.

8	Remove the option board from its connector.

Replacement

1	Insert the option board in the appropriate connector.

2	Replace the side panel. Ensure that the EMI shield is in place and fasten the two quarter-turn screws.

3	Press the top and bottom slide locks and slide the PCI shelf into the enclosure.

4	Replace the two screws at the top and two at the bottom that hold the PCI shelf in place.

5	Connect all cables.

6	If you replaced the standard I/O module, run ECU. Place the ECU diskette in the floppy drive and type:

P00>>> set arc_enable on
P00>>> init
[self-test display appears]
P00>>> runecu	! Note that there is no space after run

See the Operations Manual for information on this command.

Verification

Power up the system and check the self-test display for plus signs in the PCI section.


NOTE: In AlphaServer 8200 systems the shelf is horizontal.


NOTE: In AlphaServer 8200 systems the shelf is horizontal.


step 8

NOTE: In AlphaServer 8200 systems the shelf is horizontal.


Power Board Removal and Replacement
AlphaServer 8200/8400

Power Board Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	Disconnect any cables from the front of the PCI shelf that might inhibit the PCI shelf from being fully extended on its slides.

4	Remove the two screws (Phillips) at the top and two at the bottom that hold the PCI shelf in place.

5	Slide the shelf out until the slides lock.

6	Loosen the two quarter-turn screws (Phillips) in the top corners of the side panel. Remove the side panel by holding it at the top and bottom and swinging it out from the top.

7	Disconnect the line filter power cable from the power board.

8	Remove the two screws (Phillips) and washers that hold the line filter in place. Remove the line filter from the box and set it aside.

9	Remove the power board mounting screw.

10	Slide the power board straight out.

Replacement

1	Slide the power board in place and align it with the locating pins.

2	Attach the power board mounting screw.

3	Replace the line filter and install its two mounting screws and washers. Connect the line filter power cable to the power board.

4	Replace the side panel. Ensure that the EMI shield is in place and fasten the two quarter-turn screws.

CAUTION: Be careful not to damage the power cable in the following step.

5	Press the top and bottom slide locks and slide the PCI shelf into the enclosure.

6	Replace the two screws at the top and two at the bottom that hold the PCI shelf in place.

7	Connect all cables.

Verification

Power up the system and check that the 48V OK and PWR OK LEDs on the motherboard light.


NOTE: In AlphaServer 8200 systems the shelf is horizontal.


NOTE: In AlphaServer 8200 systems the shelf is horizontal.


NOTE: In AlphaServer 8200 systems the shelf is horizontal.


Motherboard Removal and Replacement
AlphaServer 8200/8400

Motherboard Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	Disconnect any cables from the front of the PCI shelf that might inhibit the PCI shelf from being fully extended on its slides.

4	Remove the two screws (Phillips) at the top and two at the bottom that hold the PCI shelf in place.

5	Slide the shelf out until the slides lock.

6	Loosen the two quarter-turn screws in the top corners of the side panel. Remove the side panel by holding it at the top and bottom and swinging it out from the top.

7	Remove all option boards. (Click for instructions. )

8	Disconnect the line filter power cable from the power board.

9	Remove the two screws (Phillips) and washers that hold the line filter in place. Remove the line filter from the box and set it aside.

10	Remove the power board. (Click for instructions. )

11	Remove the 11 mounting screws from the motherboard.

12	Holding the motherboard by the sides, slide it slightly to the right, then rotate the bottom toward you. Remove the board.

Replacement

1	Slide the top of the motherboard in place, then rotate the bottom away from you.

2	While pressing the motherboard toward the front of the shelf (to make good contact between the EMI shield on the shelf and the hose cover), insert and tighten the 11 mounting screws. (If the motherboard is not pushed forward far enough when mounting, the I/O hose cable will not make contact. If the PCI does not come up in the self-test display, this might be the reason.)

3	Replace the power board. (Click for instructions. )

4	Replace the line filter and install its two mounting screws and washers. Connect the line filter power cable to the power board.

5	Replace the option boards. (Click for instructions. )

6	Replace the side panel. Ensure that the EMI shield is in place and fasten the two quarter-turn screws.

CAUTION: Be careful not to damage the power cable in the following step.

7	Press the top and bottom slide locks and slide the PCI shelf into the enclosure.

8	Replace the four screws that hold the PCI shelf in place.

9	Connect all cables.

Verification

Power up the system and check the LEDs on the left front of the shelf.


NOTE: In AlphaServer 8200 systems the shelf is horizontal.


NOTE: In AlphaServer 8200 systems the shelf is horizontal.


XMI and Futurebus+ Plug-In Units
AlphaServer 8400

XMI and Futurebus+ Plug-In Units

Power Regulator Removal and Replacement

Disconnect the cables and loosen the three slotted captive screws on the front of the regulator. Grasp the handhold and pull the power regulator out of the enclosure.

Enclosure and Card Cage Removal and Replacement

An XMI PIU uses two quadrants, front to rear. A Futurebus+ PIU uses one quadrant, in the rear of the cabinet only. Use a Phillips screwdriver to remove any of these PIUs.

Air Filter Cleaning

The air filter is located in the bottom of the I/O PIU enclosure (front half). Clean it with a vacuum cleaner or a wire brush (preferably brass).


Power Regulator Removal and Replacement
AlphaServer 8400

Power Regulator Removal and Replacement

NOTE: The following instructions apply to both power regulators.

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	Loosen the two spring-loaded Phillips fasteners and remove the enclosure door.

4	Disconnect the 48V cable (two connectors).

5	Disconnect the control and status cable (two connectors).

6	Loosen the captive screws (slotted):  one at the top and two at the bottom of each regulator.

7	Using the handhold, pull out the power regulator.

CAUTION:  Do not bend or touch the connectors (power blades) at the rear of the power regulator.

8	Place the power regulator on an ESD mat.

Replacement

To replace a power regulator, reverse the steps in the Removal procedure. Wear an antistatic wrist strap. The enclosure has a guide for the printed circuit board; be sure the edge of the board is in the guide. Put the switch on the large regulator in the Enable position.

Verification

Power up the system and check the indicators on the power regulator:

•	The 48V LED is on when the system is initialized.

•	The MOD OK LED lights after power-up.


Enclosure and Card Cage Removal and Replacement
AlphaServer 8400

Enclosure and Card Cage Removal and Replacement

NOTE: The following procedure is for the front half of the XMI enclosure. The rear half remains in the cabinet. This procedure is for the entire Futurebus+ enclosure.

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	Loosen the two spring-loaded Phillips fasteners and remove the enclosure door.

CAUTION:  Hold the handle on the XMI card cage while removing or inserting a module. If it is not held in place, the handle can spring down and damage the module.

4	Remove all modules from the card cage. Store the modules in ESD boxes or on ESD mats. Do not stack the modules.

5	Remove the power regulators. (Click for instructions. )

6	Open the rear door of the cabinet.

7	Open the I/O bulkhead:  pull up and twist the two door pins, and then swing the bulkhead open.

8	Disconnect the Ethernet power cables from the bulkhead connectors.

9	Disconnect the I/O cables from the backplane.

10	At the front of the cabinet, remove the two screws (Phillips) at the bottom of the PIU enclosure.

11	Loosen the two captive screws (slotted) at the top of the enclosure.

12	Pull the enclosure out from the front of the cabinet (from the rear if Futurebus+).

Replacement

1	For XMI PIUs:  Tightening the top captive screws compresses the EMI gasket between the front and rear halves of the enclosure. Inspect the EMI gasket before replacing the front half of the enclosure to determine that the gasket is not broken.

2	Reverse the steps in the Removal procedure.

Verification

Check the PIU LEDs on the CCL module to be sure power is reaching the quadrant with the card cage you replaced.


Air Filter Cleaning
AlphaServer 8400

Air Filter Cleaning

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	If you are working on an XMI PIU, loosen the two spring-loaded fasteners (Phillips) and remove the PIU enclosure door.

4	Slide the filter out.

5	Clean the filter with a vacuum cleaner or a wire brush (preferably brass).

6	Replace the filter.

7	Replace the enclosure door.

8	Close the cabinet door.


SCSI Storage Plug-In Unit
AlphaServer 8400

SCSI Storage Plug-In Unit

Device Removal and Replacement

Press both mounting tabs in and slide the disk or tape drive out of the shelf. Use both hands to fully support the weight of the drive.

Power Supply Removal and Replacement

Disconnect the cable from the power supply. Press the mounting tabs in and slide the power supply out of the shelf. Use both hands to fully support the weight.


Device Removal and Replacement
AlphaServer 8400

Device Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	Press in both mounting tabs on the disk or tape drive.

4	Using both hands to support the weight, slide the device out of the shelf.

Replacement

1	Insert the disk or tape drive in the guide slots.

2	Push the drive in until the mounting tabs lock in place.

Verification

Power up the system and check the LEDs on the drive you replaced.


Power Supply Removal and Replacement
AlphaServer 8400

Power Supply Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	Disconnect the input power cord from the power supply.

4	Press in both mounting tabs on the power supply.

5	Using both hands to support the weight, slide the power supply out of the shelf.

Replacement

1	Insert the power supply in the guide slots.

2	Push the power supply in until the mounting tabs lock in place.

3	Connect the input power cord.

Verification

Power up the system and check the LEDs on the power supply.


DSSI Disk Plug-In Unit
AlphaServer 8400

DSSI Disk Plug-In Unit

Local Disk Converter Removal and Replacement

Pull the brick from the enclosure and remove the 13 Phillips screws from the cover. The local disk converter module is attached to the underside of the brick cover by four Phillips screws.

Remote Front Panel Removal and Replacement

Pull the brick from the enclosure and remove the 13 Phillips screws from the cover. The remote front panel module is attached to the underside of the brick cover by six Phillips screws.

Disk Removal and Replacement

Pull the brick from the enclosure and loosen the two slotted captive screws in the front bezel. Disconnect cables, press the latch pin, and slide the disk drive from the brick.

Power and Signal Harness Removal and Replacement

Remove the enclosure from the cabinet. Remove the rear panel, which is attached to the enclosure by 12 Phillips screws. Pull the three plastic connectors straight out; remove the two Phillips screws from the drawer connector and compress and push the pins from the front.


Local Disk Converter Removal and Replacement
AlphaServer 8400

Local Disk Converter Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	Remove the disk brick from the enclosure by removing the screws in the upper right and upper left corners and pulling the brick toward you.

4	Set the disk brick on a stable work surface.

5	Remove the top cover of the disk brick. The cover is attached by nine Phillips screws at the back (three on each side and three on the bottom) and two flathead Phillips screws in each channel on the sides of the disk brick.

6	Remove all cable connectors from the local disk converter module (connectors J1, J2, J3, and J6).

7	Remove the four screws (Phillips) from the corners of the local disk converter module.

Replacement

Reverse the steps in the Removal procedure.

Verification

Power up the system and check the LEDs on the front of the disk brick.


Remote Front Panel Removal and Replacement
AlphaServer 8400

Remote Front Panel Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	Remove the disk brick from the enclosure by removing the screws in the upper right and upper left corners and pulling the brick toward you.

4	Place the disk brick on a stable work surface.

5	Remove the top cover of the disk brick. The cover is attached by nine Phillips screws at the back (three on each side and three on the bottom) and two flathead Phillips screws in each channel on the sides of the disk brick.

6	Remove all cable connectors from the remote front panel module (J1 through J6 and J8).

7	With a pair of needle nose pliers, pull the switch buttons from the front bezel.

8	Remove the six screws (Phillips) that hold the remote front panel module in place.

Replacement

Reverse the steps in the Removal procedure.

Verification

Power up the system and check the LEDs on the front of the disk brick.


Disk Removal and Replacement
AlphaServer 8400

Disk Removal and Replacement

NOTE: These instructions apply to either drive in the brick.

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	Remove the front bezel from the disk brick by loosening the captive screw and pulling the bezel away from the brick.

4	Remove the three cables from the connectors beneath the disk drive.

5	Press down the latch pin under the skid plate on the disk drive. Slide the disk drive forward.

Replacement

Reverse the steps in the Removal procedure.

Verification

Power up the system and check the LEDs on the front of the disk brick.


Power and Signal Harness Removal and Replacement
AlphaServer 8400

Power and Signal Harness Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	Remove the disk bricks from the enclosure by pulling each brick toward you.

4	Loosen the two slotted captive screws at the top front of the enclosure.

5	Remove the two Phillips screws at the bottom front of the enclosure.

6	Pull the enclosure straight out of the cabinet.

7	Remove the rear panel of the enclosure, which is attached to the enclosure by 12 Phillips screws.

8	Remove the three plastic connectors at the rear of the enclosure by pulling them straight out. From the front of the enclosure, compress the pins on one side of the plastic connector and push them through the hole; repeat on the other side. Pull the connector out from the rear.

9	Remove the drawer connector by removing the two Phillips screws.

10	Pull the cable harness through the opening for the drawer connector.

Replacement

1	Snake the replacement harness through the opening for the drawer connector.

2	Position the drawer connector so that the side with the two large power pins is to the left. Attach the drawer connector with the two Phillips screws.

3	Insert the three plastic connectors in the openings in the rear of the enclosure so that the sawtooth edge of each is at the bottom. Push each connector into the opening until it snaps in place.

4	Replace the rear panel of the enclosure. The arrow on the panel must point toward the blower.

5	Slide the enclosure into the cabinet.

6	Replace the bottom two Phillips screws and tighten the top two captive screws.

7	Replace the disk bricks.

Verification

Power up the system and check the CCL module for power to the quadrant. Check the LEDs on the front of all disk bricks.


Battery Plug-In Unit
AlphaServer 8400

Battery Plug-In Unit

Fuse Removal and Replacement

Shut the circuit breaker off, padlock the lockout tag in place, and break the main cable connection to the battery block in which you are working. Remove the fuse cover and use the fuse puller to remove the fuse.

Cable Removal and Replacement

Remove the fuse for the battery block with which you are working before removing the cable.

Battery Removal and Replacement

Remove the fuse for the battery block you are replacing. Then remove the battery hold-down bracket and the batteries. For blocks B and C, remove the front batteries, then pull the tray out and tilt it down to gain access to the rear batteries.


Fuse Removal and Replacement
AlphaServer 8400

Fuse Removal and Replacement

Removal

1	Shut down the operating system and turn the keyswitch to Disable.

2	Ground yourself to the cabinet with an antistatic wrist strap.

3	At the rear of the cabinet, shut the circuit breaker off by pushing down the handle. To ensure that the circuit breaker is not unintentionally switched on again, flip the lockout tag down. Lock the tag in place with a padlock in the bottom hole of the bracket on either side of the tag.

4	Remove the appropriate panel of the battery plug-in unit. If you are working in battery block A, remove the rear panel; if battery block B or C, remove the front panel.

5	Break the main cable connection to the block of batteries in which you are working.

6	Remove the fuse cover by removing the screw (Phillips) at the top of the cover and pulling the cover toward you and down.

7	Use the fuse puller from the Electrical Safety Kit to grip the fuse and pull it out.

Replacement

1	Position the cutout in the fuse contact over the rivet in one end of the fuse holder. Push the fuse into place.

2	Replace the fuse cover.

3	Connect the main cable connection to the battery block.

4	Close the door of the battery plug-in unit.

Verification

Power up the system and run the show power command.


This illustration shows the location of the main cable connection for battery block A. This connection is in a similar location for blocks B and C:  next to the bottom half of the fuse.


Cable Removal and Replacement
AlphaServer 8400

Cable Removal and Replacement

Removal

1	Remove the fuse. (Click for instructions. )

2	Disconnect the cable and remove it.

Replacement

1	Snake the replacement cable through the channel in the side of the cabinet.

2	Make all cable connections.

3	If you are replacing the battery sense cable (17-03421-01), route it along the power cable path to the appropriate battery block.

4	Replace the fuse. (Click for instructions. )

Verification

Power up the system and run the show power command.


Battery Removal and Replacement
AlphaServer 8400

Battery Removal and Replacement

Removal

1	Remove the fuse from the battery block in which you are working. (Click for instructions. )

2	To remove the batteries in block A, remove the battery hold-down bracket from the top pair of batteries. Disconnect the cables and remove the batteries. Repeat for the bottom pair of batteries.

3	To remove the batteries in block B or C, remove the battery hold-down bracket from the pair of batteries closer to you. Disconnect the cables and remove the batteries. Then pull the tray out and tilt it down until it locks in place. Remove the rear hold-down bracket, disconnect the cables, and remove the batteries.

Replacement

Reverse the steps in the Removal procedure.

See also

Battery plug-in unit configuration rules

REPLACEMENT OF BATTERIES: When batteries are replaced, use only batteries that are compatible with the products electrical requirements and recharging circuitry, if applicable. Consult your local Digital Service Center for information and proper servicing.

BATTERY DISPOSAL: Recycle or dispose of batteries contained in this product properly, in accordance with local regulations for the battery type as marked on the battery. Prior to disposal or recycling, protect batteries against accidental short circuiting by affixing nonconductive tape across battery terminals or conductive surfaces. If the battery is not marked, or if you require other information regarding batteries, consult your nearest Digital Service Center.

Verification

Power up the system and enter the show power command.


Console Commands
AlphaServer 8200/8400

Console Commands

For more information on console commands, see the Operations Manual.

Command	Description
b[oot] [-flags M, PPPP] [-file <filename>] <device_name>	Boot the operating system. -fl[ags] - overrides the boot_osflags environment variable. M - specifies the system root to be booted from the system disk. PPPP - operating system bootstrap loader options. -file - boot from the file <filename> (overrides the boot_file environment variable).
bu[ild] -c <device>	Copy the EEPROM environment variables from a secondary processor to the primary processor. <device> - KN7CC-AA or KN7CC-AB.
bu[ild] -e <device>	Initialize a modules EEPROM. <device> - KN7CC-AA or KN7CC-AB.
bu[ild] -n <device>	Initialize the CPUs nonvolatile RAM. <device> - KN7CC-AA or KN7CC-AB.
bu[ild] -s <device>	Initialize a modules serial EEPROM. <device> - MS7CC, MS7BB, KFTIA, KFTHA, DWLMA, DWLAA, or DWLPA.
cl[ear] ee[prom] <option>	Clears the selected EEPROM option. <option> - diag_sdd, diag_tdd, symptom, or log.
cl[ear] <envar>	Removes an environment variable. <envar> - name of the environment variable.
cl[ear] sc[reen]	Clears the terminal screen.
c[ontinue]	Resumes processing at the point where it was interrupted by Ctrl/P.
cra[sh]	Causes the operating system to restart and generates a memory dump.
cre[ate] <envar> [<value>]	Creates an environment variable. <envar> - environment variable name. <value> - optional variable value.
da[te] [<yyyymmddhhmm.ss>]	Sets or displays the system date and time. yyyy - year; mm - month; dd - day;  hh - hour; mm - minutes; ss - seconds
d[eposit] [-{b,w,l,q,o,h}] [-{n val, s val}] [space:]<address> <data>	Stores data in the specified location. space - device name or address space of the device to access. <address> - offset within a device to which data is deposited.
e[xamine] [-{b,w,l,q,o,h}] [-{n val, s val}] [space:]<address>	Displays the contents of a memory location, register, or device. space - device name or address space of the device to access. <address> - a longword that specifies the first location to be examined.
he[lp] [<command>]	Provides infomation on console commands.
i[nitialize]	Performs a reset.
run <program> [-d <device>] [-p <n>] [-s <parameter string>]	Runs one of four ARC utility programs: rcu (RAID Configuration Utility), swxcrfw, eepromcfg, util_cli. The arc_enable environment variable must be set. <program> - command option. <device> - console device containing the program (default is dva0). <n> - unit number of the PCI to configure. <parameter string> - optional parameters to pass to the utility (must be enclosed in quotes).
runecu	Invokes the EISA Configuration Utility.
se[t] ee[prom] <option>	Sets the selected EEPROM option. <option> - field, halt, manufacturing, serial, or symptom.
se[t] <envar> [value]	Modifies an environment variable. Click for the values of envar and value. The command set -d envar resets the environment variable to its default.
se[t] h[ost] <device_adapter> or se[t] h[ost] <-dup> <-bus b> node [task]	Connects to another console or service. The -dup option invokes the DUP server on the selected node. The set host command can be issued only from the boot processor.
se[t] p[ower] -b <value> <option>	Configures the power regulators for battery backup. Used only on AlphaServer 8400 with three-phase power. -b - configure the system with batteries. <value> - number of batteries, 4 or 8. <option> - cabinet containing the batteries, main, left, or right.
se[t] see[prom] <option> <device>	Sets the selected SEEPROM option. <option> - field, manufacturing, or serial. <device> - the device mnemonic.
sh[ow] c[onfiguration]	Displays the last configuration seen at system initialization.
sh[ow] cpu	Displays information on CPUs in the system.
sh[ow] dev[ice] [<dev_name>]	Displays device information for any disk or tape adapter or group of adapters. <dev_name> - any adapter name; wild-carding is allowed. If blank, information is given for all devices in the system.
sh[ow] ee[prom] <option>	Displays selected EEPROM information. <option> - diag_sdd, diag_tdd, field, halt, manufacturing, serial, or symptom.
sh[ow] <envar> or show *	Displays the current state of the specified environment variable. <envar> - an environment variable name.
sh[ow] m[emory]	Displays memory module information.
sh[ow] ne[twork]	Displays the names and physical addresses of all known network devices in the system.
sh[ow] p[ower] [-{h,s}] [option]	Gives the power status of an AlphaServer 8400 system with three-phase power. -s - current status (default). -h - history status (value of each parameter at the last system shutdown). option - cabinet (main, right, or left).
sh[ow] see[prom] <option> <device>	Displays selected SEEPROM information. <option> - diag_sdd, diag_tdd, symptom, field, manufacturing, or serial. <device> - KFTHA or KFTIA.
sh[ow] simm	Displays the location of any bad SIMMs or indicates that no SIMM errors were found.
s[tart] address	Begins execution of an instruction at the address specified. Does not initialize the system.
sto[p] <processor_number>	Halts a specified processor. Does not control the running of diagnostics and does not apply to adapters or memories. <processor_number> - the logical CPU number (displayed by the show cpu command).
t[est] [-write] [-nowrite list [-omit list] [-t time] [-q] [<dev_arg>]	Tests the entire system (default), a subsystem, or a specific device. -write - selects writes to media as well as reads; applicable only to disk testing. -nowrite list - used with -write to prevent selected devices or groups of devices from being written to. -omit list - specifies devices not to test. -t time - run time in seconds, following system sizing and configuration; default is 600 seconds. -q - disables status messages. <dev_arg> - specifies the target device, group of devices, or subsystem.
# (comment)	Introduces a comment.


Environment Variables
AlphaServer 8200/8400

Environment Variables

An environment variable is a name and value association maintained by the console program. The value associated with an environment variable is an ASCII string (up to 127 characters) or an integer. Some environment variables are typically modified by the user to tailor the recovery behavior of the system on power-up and after system failures. Volatile environment variables are initialized by a system reset; others are nonvolatile across system failures.

Environment variables are created, modified, displayed, and deleted using the create, set, show, and clear commands. A default value is associated with any variable that is stored in the EEPROM area.

Variable	Attribute	Function
arc_enable	Nonvolatile	Enables the console ARC interface, allowing booting of ECU and other ARC utilities. Default value is off.
auto_action	Nonvolatile	Specifies the action the system will take following an error halt.  Values are: restart - Automatically restart.  If restart fails, boot the operating system. boot - Automatically boot the operating system. halt (default) - Enter console mode.
bootdef_dev	Nonvolatile	The default device or device list from which booting is attempted when no device name is specified by the boot command.
boot_file	Nonvolatile	The default file name used for the primary bootstrap when no file name is specified by the boot command, if appropriate.
boot_osflags	Nonvolatile	Additional parameters to be passed to the system software during booting if none are specified by the boot command with the -flags qualifier.
boot_reset	Nonvolatile	Resets system and displays self-test results during booting. Default value is off.
console	Nonvolatile	The type of terminal being used for the console, either serial (default) for a standard video terminal or graphics for a graphics display. If the terminal is a graphics display, the system must have a PCI with a standard I/O module and a TGA graphics controller. If that hardware is not available, the variable remains set to serial.
cpu	Volatile	Selects the current boot processor.
cpu_enabled	Nonvolatile	A bitmask indicating which processors are enabled to run (leave console mode). Default is 0xffff.
cpu_primary	Nonvolatile	A bitmask indicating which processors are enabled to become the next boot processor, following the next reset. Default is 0xffff.
d_harderr	Volatile	Determines action taken following a hard error.  Values are halt (default) and continue.  Applies only when using the test command.
d_report	Volatile	Determines level of information provided by the diagnostic reports.  Values are summary and full (default).  Applies only when using the test command.
d_softerr	Volatile	Determines action taken following a soft error.  Values are continue (default) and halt.  Applies only when using the test command.
dump_dev	Nonvolatile	Device to which dump file is written if system crashes, if supported by the operating system.
enable_audit	Nonvolatile	If set to on (default), enables the generation of audit trail messages. If set to off, audit trail messages are suppressed. Console initialization sets this to on.
graphics_switch	Nonvolatile	Overrides the screen resolution setting. The variable is an integer from 0 to 15.
interleave	Nonvolatile	The memory interleave specification.  Value must be default (memory configuration algorithm that attempts to maximize memory interleaving is used), none, or an explicit interleave list.
language	Nonvolatile	Determines whether system displays message numbers or message text.  Default value is 36 (English).
simm_callout	Nonvolatile	If set to on, enables pause-on-error mode (POEM) testing of faulty memories during power-up. Default is off.
sys_model_num	Nonvolatile	The system model number, either 8200 or 8400. Set in manufacturing.
sys_serial_num	Nonvolatile	The system serial number. Set in manufacturing.
tta0_baud	Nonvolatile	Sets the console terminal baud rate.  Allowable values are 300, 600, 1200, 2400, 4800, and 9600.


Settings for the graphics_switch Environment Variable

Setting	Pixel Frequency (Mhz)	Monitor Resolution (Pixels)	Refresh Rate (Hz)
0	130	1280 x 1024	72
1	119	1280 x 1024	66
2	108	1280 x 1024	60
3	104	1152 x 900	72
4	93	1152 x 900	66
5	75	1024 x 768	70
6	74	1024 x 768	72
7	69	1024 x 864	60
8	65	1024 x 768	60
9	50	800 x 600	72
10	40	800 x 600	60
11	32	640 x 480	72
12	25	640 x 480	60
13	135	1280 x 1024	75
14	110	1280 x 1024	60
15	Reserved


How to Find Option Information
AlphaServer 8200/8400

How to Find Option Information

The Digital Systems and Options Catalog describes all options for AlphaServer 8200 and AlphaServer 8400 systems.  In addition, Digital maintains a list of the latest supported options on the Internet, which you can access as follows.

Using ftp, copy the file:
ftp.digital.com/pub/Digital/Alpha/systems/as8400/docs/8400-options.txt

Using a Worldwide Web browser (such as Mosaic or Netscape), follow links from URL:
http://www.service.digital.com/alpha/server/as8400/docs/8400-options.html


How to Find Option Information

The Digital Systems and Options Catalog describes all options for AlphaServer 8200 and AlphaServer 8400 systems.  In addition, Digital maintains a list of the latest supported options on the Internet, which you can access as follows.

Using ftp, copy the file:
ftp.digital.com/pub/Digital/Alpha/systems/as8400/docs/8400-options.txt

Using a Worldwide Web browser (such as Mosaic or Netscape), follow links from URL:
http://www.service.digital.com/alpha/server/as8400/docs/8400-options.html


Copyright

First Printing, May 1995

The information in this document is subject to change without notice and should not be construed as a commitment by Digital Equipment Corporation.

Digital Equipment Corporation assumes no responsibility for any errors that may appear in this document.

The software, if any, described in this document is furnished under a license and may be used or copied only in accordance with the terms of such license. No responsibility is assumed for the use or reliability of software or equipment that is not supplied by Digital Equipment Corporation or its affiliated companies.

Copyright © 1995 by Digital Equipment Corporation.

All Rights Reserved.
Printed in U.S.A.

The following are trademarks of Digital Equipment Corporation:  AlphaGeneration, AlphaServer, DEC, DECchip, DEC LANcontroller, OpenVMS, StorageWorks, VAX, the AlphaGeneration logo, and the DIGITAL logo.

OSF/1 is a registered trademark of the Open Software Foundation, Inc.  Prestoserve is a trademark of Legato Systems, Inc.  UNIX is a registered trademark in the U.S. and other countries, licensed exclusively through X/Open Company Ltd.

FCC NOTICE: The equipment described in this manual generates, uses, and may emit radio frequency energy. The equipment has been type tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection against such radio frequency interference when operated in a commercial environment. Operation of this equipment in a residential area may cause interference, in which case the user at his own expense may be required to take measures to correct the interference.


Cabinet Control System
AlphaServer 8200

Cabinet Control System

Control Panel Removal and Replacement

The control panel bezel attaches to the cabinet with a black plunger located at the bottom center of the bezel.  The circuit board attaches to the cabinet with four small screws.  Access is from the front of the cabinet.

Cabinet Control Logic Module Removal and Replacement

The cabinet control logic (CCL) module is mounted behind the CCL panel.  The CCL module is held in place by four Phillips screws.  Access is from the front of the cabinet.


Control Panel Removal and Replacement
AlphaServer 8200

Control Panel Removal and Replacement

Removal

1	Open the front cabinet door.

2	Push the control panel On/Off button to Off.

3	At the rear of the cabinet, shut the circuit breaker off by pushing down the handle.

4	Pull the black plunger and remove the control panel bezel.

5	Disconnect the 17-04046-01 cable from J9 on the CCL panel.

6	Remove the four screws that attach the control panel circuit board to the cabinet.

7	Remove the control panel circuit board.

Replacement

Reverse the steps in the Removal procedure.


Cabinet Control Logic Module Removal and Replacement
AlphaServer 8200

Cabinet Control Logic Module Removal and Replacement

Removal

1	Open the front cabinet door.

2	Push the control panel On/Off button to Off.

3	At the rear of the cabinet, shut the circuit breaker off by pushing down the handle.

4	Remove the control panel. (Click for instructions. )

5	Disconnect these cables from the CCL module:

a	17-04018-01 from J2 (EXTERNAL POWER ENABLE)

b	17-04045-01 from J3 (POWER COMM 1)

c	17-04045-01 from J4 (POWER COMM 2), in dual-power regulator systems

6	Remove the ten Phillips screws that hold the CCL panel and module in place.  The panel hinges downward.  Disconnect these cables from the CCL module:

a	17-04103-02 from J11

b	17-04051-01 from J10

c	17-04050-01 from J6

d	17-04048-01 from J1

7	Remove the four Phillips screws that hold the CCL module to the CCL panel.

8	Lift the CCL module off.

Replacement

Reverse the steps in the Removal procedure.

NOTE:  After connecting all the cables to the CCL module, be careful not to damage the cables when you reattach the module to the cabinet.


How to Find Firmware Updates
AlphaServer 8200/8400

How to Find Firmware Updates

Firmware for all AlphaServer systems is available for download from the Internet. You can access the firmware as follows.

Using ftp, copy the file:
ftp://ftp.digital.com/pub/Digital/Alpha/firmware/

Using a Worldwide Web browser (such as Mosaic or Netscape), follow links from URL:
http://www.service.digital.com/alpha/server/firmware/

The files are structured as those on the firmware CD and are separated by CD release. For example, the contents of the V3.3 firmware CD are located at:
ftp://ftp.digital.com/pub/Digital/Alpha/firmware/v3.3/

The latest firmware (if released since the last firmware CD) is located at:
ftp://ftp.digital.com/pub/Digital/Alpha/firmware/interim/


How to Find Firmware Updates

Firmware for all AlphaServer systems is available for download from the Internet. You can access the firmware as follows.

Using ftp, copy the file:
ftp://ftp.digital.com/pub/Digital/Alpha/firmware/

Using a Worldwide Web browser (such as Mosaic or Netscape), follow links from URL:
http://www.service.digital.com/alpha/server/firmware/

The files are structured as those on the firmware CD and are separated by CD release. For example, the contents of the V3.3 firmware CD are located at:
ftp://ftp.digital.com/pub/Digital/Alpha/firmware/v3.3/

The latest firmware (if released since the last firmware CD) is located at:
ftp://ftp.digital.com/pub/Digital/Alpha/firmware/interim/