HP COMPAQ EVO W8000 User Manual

Maintenance & Service Guide

Compaq Evo Workstation W8000

Document Part Number: 229690-001 Spare Part Number: 229781-001

May 2001

© 2001 Compaq Computer Corporation Compaq and the Compaq logo Registered in U. S. Patent and Trademark Office. Evo is a trademark of Compaq Information Technologies Group, L. P. in the United States and other

countries. Microsoft, Windows, Windows NT are trademarks of Microsoft Corporation in the United States and other

countries. Intel and Pentium are trademarks of Intel Corporation in the United States and other countries. All other product names mentioned herein may be trademarks of their respective companies. Compaq shall notbe liable for technical or editorial errors or omissions contained herein. The information in

this document is provided “as is” without warranty of any kind and is subject to change without notice. The warranties for Compaq products are set forth in the express limited warranty statements accompanying such products. Nothing herein should be construed as constituting an additional warranty.

Maintenance & Service Guide First Edition (May 2001) Document Part Number: 229690-001 Spare Part Number: 229781-001

Preface

ABOUTTHISGUIDE................................................... vi

SymbolsandConventions............................................. vi

TechnicianNotes....................................................vii

LocatingAdditionalInformation........................................vii

1 Product Description

1.1 Product Features ...................................................1–2

1.1.1 FrontPanelControlsandLEDs..................................1–2

1.1.2 Rear Panel Connectors ........................................1–3

1.1.3 DrivePositions ..............................................1–4

1.2 SerialNumberLocation.............................................1–5

2 Spare Parts

3 Removal & Replacement Preliminaries

3.1 ElectrostaticDischargeInformation....................................3–1

3.1.1 GeneratingStatic.............................................3–2

3.1.2 PreventingElectrostaticDamagetoEquipment.....................3–2

3.1.3 PersonalGroundingMethodsandEquipment.......................3–3

3.1.4 Grounding the Work Area. . ....................................3–3

3.1.5 RecommendedMaterialsandEquipment..........................3–4

3.2 RoutineCare......................................................3–5

3.2.1 GeneralCleaningSafetyPrecautions.............................3–5

3.2.2 CleaningtheChassisExterior...................................3–5

3.2.3 Cleaning the Keyboard ........................................3–5

3.2.4 CleaningtheMonitor..........................................3–6

3.2.5 CleaningtheMouse...........................................3–6

3.3 ServiceConsiderations..............................................3–6

3.3.1 Power Supply Fan ............................................3–6

3.3.2 ToolsandSoftwareRequirements................................3–7

3.3.3 Screws.....................................................3–7

3.3.4 CablesandConnectors ........................................3–7

3.3.5 HardDrives.................................................3–7

3.3.6 LithiumCoinCellBattery......................................3–8

Maintenance & Service Guide iii

Contents

4 Removal & Replacement Procedures

4.1 DisassemblySequenceChart.........................................4–1

4.2 PreparationforDisassembly..........................................4–2

4.3 CableLock.......................................................4–3

4.4 WorkstationFeet...................................................4–4

4.5 AccessPanel......................................................4–5

4.6 Battery...........................................................4–6

4.7 HoodSensor......................................................4–7

4.8 ShippingBracket...................................................4–8

4.9 MemoryComponents...............................................4–9

4.9.1 Overview...................................................4–9

4.9.2 RemovingtheMemoryExpansionBoard.........................4–10

4.9.3 RIMMInstallationGuidelines..................................4–11

4.9.4 RIMMSlotLocations........................................4–12

4.9.5 RIMMSocketConfigurations..................................4–12

4.9.6 InstallingaMemoryDevice...................................4–13

4.10 FrontBezel.....................................................4–14

4.11 BlankDriveBezel................................................4–15

4.12 FrontI/OBoardandPowerSwitchAssembly..........................4–16

4.13 EMI/CoolingShield..............................................4–17

4.14 MassStorageDevices.............................................4–18

4.14.1 DrivePositions ............................................4–18

4.14.2 SpareScrews..............................................4–19

4.14.3 RemovingaHardDrivefromBays5or6 .......................4–20

4.14.4 CD-ROMDrive............................................4–21

4.14.5 DisketteDrive.............................................4–22

4.15 ExpansionBoards................................................4–23

4.15.1 RemovinganExpansionBoard................................4–24

4.15.2 Installing an Expansion Board.................................4–25

4.16 AirBaffles......................................................4–26

4.16.1 MainBaffle...............................................4–26

4.16.2 Power Supply Air Baffle . . ...................................4–27

4.17 PowerSupply...................................................4–28

4.18 RemovableHardDriveCage.......................................4–29

4.18.1 RemovingtheRemovableHardDriveCage......................4–29

4.18.2 Removing a Hard Drive from the Removable

HardDriveCage(Bays1-3)..................................4–30

4.18.3 Installing a Hard Drive in the Removable

HardDriveCage(Bays1-3)..................................4–31

4.19 Heatsink and Processor 4–33

4.19.1 SeparatingtheHeatsink-ProcessorAssembly.....................4–33

HeatsinkCool-DownTime....................................4–33

HeatsinkWarm-UpTime.....................................4–33

4.19.2 RemovingtheHeatsinkandProcessor..........................4–34

4.19.3 Installing an Additional Processor..............................4–36

HardwareAbstractionLayer...................................4–36

AdditionalProcessorInstallation ...............................4–36

4.20 SystemBoard...................................................4–39

4.21 RearFan.......................................................4–40

4.22 ProcessorFan...................................................4–41

4.23 Speaker........................................................4–42

4.24 CardGuide.....................................................4–43

4.25 AirPlenumFan..................................................4–44

iv Maintenance & Service Guide

5 Connectors and Jumpers

5.1 SystemBoard.....................................................5–1

5.1.1 ConnectorsandJumpers.......................................5–2

5.1.2 SystemBoardTroubleshootingLEDs.............................5–3

LED Based Hardware Troubleshooting Tables . . . ..................5–3

5.1.3 DisableandClearPasswordJumper..............................5–6

5.1.4 ClearingCMOS..............................................5–7

5.2 MassStorage......................................................5–8

5.2.1 HardDrives.................................................5–8

5.2.2 CD-ROMorDVD-ROMDrive..................................5–8

5.2.3 ZipDrive...................................................5–8

A SCSI Devices

SCSIGuidelines...................................................... A–1

Using the Multi-Mode SCSI Cable........................................ A–2

UsingSCSISelectwithSCSIDevices ..................................... A–3

SMART............................................................. A–3

B Specifications

SystemSpecifications.................................................. B–1

SystemInterrupts..................................................... B–1

Contents

Index

Maintenance & Service Guide v

ABOUT THIS GUIDE

This Maintenance & Service Guide is a troubleshooting and repair guide that can be used for reference when servicing the Compaq Evo Workstation W8000. Only authorized technicians trained by Compaq should attempt to repair this equipment.

Compaq Computer Corporation reserves the right to make changes to the these models without notice.

Symbols and Conventions

The following text and symbols mark special messages throughout this guide:

WARNING: Text set off in this manner indicates that failure to follow directions in the

warning could result in bodily harm or loss of life.

CAUTION: Text set off in this manner indicates that failure to follow directions could result

in damage to equipment or loss of data.

Preface

Text set off in this manner presents commentary, sidelights, clarifying

✎

information, or specific instructions.

Maintenance & Service Guide vi

Preface

Technician Notes

WARNING: Only authorized technicians trained by Compaq should attempt to repair this

equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module level repair. Because of the complexity of the individual boards and subassemblies, no one should attempt to make repairs at the component level or to make modifications to any printed wiring board. Improper repairs can create a safety hazard. Any indications of component replacement or printed wiring board modifications may void any warranty.

WARNING: To reduce the risk of electric shock or damage to the equipment:

■ Do not disable the power grounding plug. The grounding plug is an important safety

feature.

■ Plug the power cord into a grounded (earthed) electrical outlet that is easily

accessible at all times.

■ Disconnect the power from the computer by unplugging the power cord either from

the electrical outlet or the computer.

CAUTION: To properly ventilate your system, you must provide at least 3 inches (7.6 cm)

of clearance at the front and back of the computer.

Locating Additional Information

The following documentation is available to support these products:

■ User Documentation

■ Technical Training Guides

■ Compaq Service Advisories and Bulletins

■ Compaq QuickFind

■ Technical Reference Guide

■ Compaq Quick Reference Guide

■ Compaq Service Reference Guide

■ Compaq Quick Troubleshooting Guide

vii Maintenance & Service Guide

Product Description

This chapter describes the model offerings and features of the Compaq Evo Workstation W8000.

Maintenance & Service Guide 1–1

Product Description

1.1 Product Features

The W8000 ships with a mouse and keyboard. Some models are also equipped with a CD-ROM, DVD-ROM, or CDRW drive. A Compaq color monitor or other compatible monitor does not ship with the workstation.

1.1.1 Front Panel Controls and LEDs

Ref. Component/Function Ref. Component/Functions

CD-ROM headphone connector

CD-ROM volume

Diskette drive activity light

Powe r button

Hard drive activity light

Powe r-on ligh t

Headphone connector

Two Universal Serial Bus (USB) connectors

CD-ROM eject button

CD-ROM emergency eject opening

CD-ROM activity light

Diskette drive eject button

Network link/activity light

Microphone connector

1–2 Maintenance & Service Guide

1.1.2 Rear Panel Connectors

Product Description

Ref. Component/Function Ref. Component/Functions

Power cord connector

Mouse connector

Keyboard connector

Ultra160 SCSI connector

Two Universal Serial Bus (USB)

connectors

Line-out audio connector

Line-in audio connector

Serial connector B

Parallel connector

Serial connector A

Network Link/Activity LED

Ethernet connector

Network Connection Speed LED

Video (monitor) connector

Maintenance & Service Guide 1–3

Product Description

1.1.3 Drive Positions

The workstation provides seven drive bays. Bays 1 through 3 are located in the 3.5-inch removable hard drive cage, which is located behind the side access panel of the workstation. Drive bays 4 through 7 are located on the front of the workstation. The drives support various drive configurations.

Item Component Description

*An optional Zip drive can be installed in bay 5 or 6.

Bay 1 Part of the removable hard drive cage. A 3.5-inch, third-height

bay that supports a 1.0-inch hard drive or a 1.6-inch hard drive.

Bay 2 Part of the removable hard drive cage. A 3.5-inch, third-height

bay that supports a 1.0-inch hard drive. Bay 2 is not available when a 1.6-inch hard drive is installed in either bay 1 or bay 3.

Bay 3 Part of the removable hard drive cage. A 3.5-inch, third-height

bay that supports a 1.0-inch hard drive or a 1.6-inch hard drive.

Bay 4 5.25-inch, half-height bay that supports 1.0-inch or 1.6-inch

storage devices. Either a CD-ROM drive or DVD-ROM drive is shipped in bay 4.

Bay 5* 5.25-inch, half-height bay that supports 1.0-inch or 1.6-inch

storage devices.

Bay 6* 5.25-inch, half-height bay that supports 1.0-inch or 1.6-inch

storage devices.

Bay 7 3.5-inch, third-height bay that supports a 1.0-inch device. A

standard 3.5-inch diskette drive is shipped in bay 7.

1–4 Maintenance & Service Guide

1.2 Serial Number Location

Provide the workstation serial number to Compaq whenever you request information or order spare parts. There are two serial number locations on the unit. One is located on the top front corner of the access panel. The other is on the rear of the unit below the power supply.

For asset control, the serial number is also embedded in the Electrically Erasable Programmable Read Only Memory (EEPROM) on the system board. If the system board is replaced with a spare part from Compaq, an invalid serial number condition will be reported during the Power-On Self-Tests (POST). To clear the condition, re-enter the original serial number through Computer Setup.

Product Description

Maintenance & Service Guide 1–5

Spare Parts

Spare parts are listed and illustrated on the Illustrated Parts Map, spare part number 229782-001.

Maintenance & Service Guide 2–1

Removal & Replacement Preliminaries

This chapter provides general service information for the workstation. Adherence to the procedures and precautions described in this chapter is essential for proper service.

CAUTION: When the workstation is plugged into an AC power source there is always

voltage applied to the system board. You must disconnect the power cord from the power source before opening the workstation to prevent system board or component damage.

3.1 Electrostatic Discharge Information

A sudden discharge of static electricity from your finger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge (ESD) may not appear to be affected at all and can work perfectly throughout a normal cycle. The device may function normally for a while, but it has been degraded in the internal layers, reducing its life expectancy.

Circuitry built into many integrated circuits provide some protection, but in many cases, the discharge contains enough power to alter device parameters or melt silicon junctions.

Maintenance & Service Guide 3–1

Removal & Replacement Preliminaries

3.1.1 Generating Static

The following table shows that:

■ Different activities generate different amounts of static electricity.

■ Static electricity increases as humidity decreases.

Event 55% 40% 10%

Walking across carpet 7,500 V 15,000 V 35,000 V

Walking across vinyl floor 3,000 V 5,000 V 12,000 V

Motions of bench worker 400 V 800 V 6,000 V

Removing DIPs* from plastic tube 400 V 700 V 2,000 V

Removing DIPs* from vinyl tray 2,000 V 4,000 V 11,500 V

Removing DIPs* from Styrofoam 3,500 V 5,000V 14,500 V

Removing bubble pack from PCB 7,000 V 20,000 V 26,500 V

Packing PCBs in foam-lined box 5,000 V 11,000 V 21,000 V

Relative Humidity

*These are then multi-packaged inside plastic tubes, trays, or Styrofoam.

700 volts can degrade a product.

✎

3.1.2 Preventing Electrostatic Damage to Equipment

Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of sensitivity. The following proper packaging and grounding precautions are necessary to prevent damage to electric components and accessories.

■ To avoid hand contact, transport products in static-safe containers such as tubes, bags,

or boxes.

■ Protect all electrostatic parts and assemblies with conductive or approved containers or

packaging.

■ Keep electrostatic sensitive parts in their containers until they arrive at static-free

stations.

■ Place items on a grounded surface before removing them from their container.

■ Always be properly grounded when touching a sensitive component or assembly.

■ Avoid contact with pins, leads, or circuitry.

■ Place reusable electrostatic-sensitive parts from assemblies in protective packaging or

conductive foam.

3–2 Maintenance & Service Guide

Removal & Replacement Preliminaries

3.1.3 Personal Grounding Methods and Equipment

Use the following equipment to prevent static electricity damage to equipment:

■ Wrist straps are flexible straps with a maximum of one-megohm +/- 10% resistance in

the ground cords. Toprovide proper ground, a strap must be worn snug against bare skin. The ground cord must be connected and fit snugly into the banana plug connector on the grounding mat or workstation.

■ Heel straps/Toe straps/Boot straps can be used at standing workstations and are

compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, use them on both feet with a maximum of one-megohm +/- 10% resistance between the operator and ground.

Static Shielding Protection Levels

Method Voltage

Antistatic plastic 1,500

Carbon-loaded plastic 7,500

Metallized laminate 15,000

3.1.4 Grounding the Work Area

To prevent static damage to the work area, use the following precautions:

■ Cover the work surface with approved static-dissipative material. Provide a wrist strap

connected to the work surface and properly grounded tools and equipment.

■ Use static-dissipative mats, foot straps, or air ionizers to give added protection.

■ Handle electrostatic sensitive components, parts, and assemblies by the case or PCB

laminate. Handle them only at static-free work areas.

■ Turn off power and input signals before inserting and removing connectors or test

equipment.

■ Use fixtures made of static-safe materials when fixtures must directly contact dissipative

surfaces.

■ Keep work area free of nonconductive materials such as ordinary plastic assembly aids

and Styrofoam.

■ Use field service tools, such as cutters, screwdrivers, and vacuums, that are conductive.

Maintenance & Service Guide 3–3

Removal & Replacement Preliminaries

3.1.5 Recommended Materials and Equipment

Materials and equipment that are recommended for use in preventing static electricity include:

■ Antistatic tape

■ Antistatic smocks, aprons, or sleeve protectors

■ Conductive bins and other assembly or soldering aids

■ Conductive foam

■ Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance

■ Static-dissipative table or floor mats with hard tie to ground

■ Field service kits

■ Static awareness labels

■ Wrist straps and footwear straps providing one-megohm +/- 10% resistance

■ Material handling packages

■ Conductive plastic bags, opaque shielding bags, transparent metallized shielding bags

■ Conductive plastic tubes

■ Conductive tote boxes

■ Transparent shielding tubes

3–4 Maintenance & Service Guide

3.2 Routine Care

3.2.1 General Cleaning Safety Precautions

1. Never use solvents or flammable solutions to clean the workstation.

2. Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and then use the cloth on the component.

3. Always unplug the workstation when cleaning with liquids or damp cloths.

4. Always unplug the workstation before cleaning the keyboard, mouse, or air vents.

5. Disconnect the keyboard before cleaning it.

6. Wear safety glasses equipped with side shields when cleaning the keyboard.

3.2.2 Cleaning the Chassis Exterior

Follow all safety precautions in Section 3.2.1 before cleaning the workstation.

■ To clean the workstation case, follow the procedures described below:

■ To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab.

Removal & Replacement Preliminaries

■ For stronger stains, use a mild dishwashing liquid diluted with water. Rinse well by

wiping it with a cloth or swab dampened with clear water.

■ For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is needed as the alcohol

will evaporate quickly and not leave a residue.

■ After cleaning, always wipe the unit with a clean, lint-free cloth.

■ Occasionally clean the air vents on the workstation. Lint and other foreign matter can

block the vents and limit the airflow.

3.2.3 Cleaning the Keyboard

Follow all safety precautions in Section 3.2.1 before cleaning the keyboard. To clean the tops of the keys or the keyboard body, follow the procedures described in

Section 3.2.2. When cleaning debris from under the keys, review all rules in Section 3.2.1 before following

these procedures:

CAUTION: Use safety glasses equipped with side shields before attempting to clean

debris from under the keys.

■ Visible debris underneath or between the keys may be removed by vacuuming or

shaking.

■ Canned, pressurized air may be used to clean debris from under the keys. Caution should

be used as too much air pressure can dislodge lubricants applied under the wide keys.

■ If you remove a key, use a specially designed key puller to prevent damage to the keys.

This tool is available through many electronic supply outlets.

Maintenance & Service Guide 3–5

Removal & Replacement Preliminaries

CAUTION: Never remove a wide leveled key (like the space bar) from the keyboard. If

these keys are improperly removed or installed, the keyboard may not function properly.

■ Cleaning under a key may be done with a swab moistened with isopropyl alcohol and

squeezed out. Be careful not to wipe away lubricants necessary for proper key functions. Use tweezers to remove any fibers or dirt in confined areas. Allow the parts to air dry before reassembly.

3.2.4 Cleaning the Monitor

■ Wipe the monitor screen with a clean cloth moistened with water or with a towelette

designed for cleaning monitors. Do not use sprays or aerosols directly on the screen, the liquid may seep into the housing and damage a component. Never use solvents or flammable liquids on the monitor.

■ To clean the monitor body follow the procedures in Section 3.2.2.

3.2.5 Cleaning the Mouse

Before cleaning the mouse, ensure that the power to the workstation is turned off.

■ Clean the mouse ball by first removing the retaining plate and the ball from the housing.

Pull out any debris from the ball socket and wipe the ball with a clean dry cloth before reassembly.

■ To clean the mouse body, follow the procedures in Section 3.2.2.

3.3 Service Considerations

Listed below are some of the considerations that you should keep in mind during the disassembly and assembly of the workstation.

3.3.1 Power Supply Fan

The power supply fan is a variable-speed fan based on the temperature in the power supply.

CAUTION: The cooling fan is off only when the workstation is turned off or the power

cable has been disconnected.

The cooling fan is always on in all other instances (when the workstation is either in the “On,” “Standby,” or “Suspend” mode).

You must disconnect the power cord from the power source before opening the workstation to prevent system board or component damage.

3–6 Maintenance & Service Guide

3.3.2 Tools and Software Requirements

To service the workstation, you need the following:

■ Torx T-15 screwdriver (Compaq screwdriver with bits, PN 161946-001)

■ Phillips screwdriver (may sometimes be used in place of the Torx screwdriver)

■ Diagnostics software

■ Compaq tamper-resistant T-15 wrench (Smart Cover FailSafe Key, PN 166527-001) or

Compaq tamper-resistant bits (Smart Cover FailSafe Key, PN 166527-002)

3.3.3 Screws

The screws used in the workstation are not interchangeable. They may have standard or metric threads and may be of different lengths. If an incorrect screw is used during the reassembly process, it can damage the unit. Compaq strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations.

As each subassembly is removed from the workstation, it should be placed away

✎

from the work area to prevent damage.

Removal & Replacement Preliminaries

3.3.4 Cables and Connectors

Most cables used throughout the unit are flat, flexible cables. These cables must be handled with care to avoid damage. Apply only the tension required to seat or unseat the cables during insertion or removal from the connector. Handle cables by the connector whenever possible. In all cases, avoid bending or twisting the cables, and ensure that the cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced.

CAUTION: When servicing this workstation, ensure that cables are placed in their proper

location during the reassembly process. Improper cable placement can damage the workstation.

3.3.5 Hard Drives

Handle hard drives as delicate precision components, avoiding all physical shock and vibration. This applies to failed drives as well as replacement spares.

■ If a drive must be mailed, place the drive in a bubble-pack mailer or other suitable

protective packaging and label the package “Fragile: Handle With Care.”

■ Do not remove hard drives from the shipping package for storage. Keep hard drives in

their protective packaging until they are actually mounted in the CPU.

■ Avoid dropping drives from any height onto any surface.

■ If you are inserting or removing a hard drive, turn off the workstation. Do not remove a

hard drive while the workstation is on or in standby mode.

Maintenance & Service Guide 3–7

Removal & Replacement Preliminaries

■ Before handling a drive, ensure that you are discharged of static electricity. While

handling a drive, avoid touching the connector. For more information about preventing electrostatic damage, refer to Section 3.1, “Electrostatic Discharge.”

■ Do not use excessive force when inserting a drive.

■ Avoid exposing a hard drive to liquids, temperature extremes, or products that have

magnetic fields such as monitors or speakers.

3.3.6 Lithium Coin Cell Battery

The battery that comes with the workstation provides power to the real-time clock and has a minimum lifetime of about three years.

See Chapter 4, “Removal and Replacement Procedures,” for instructions on the replacement procedures.

WARNING: This workstation contains a lithium battery. There is a risk of fire and

chemical burn if the battery is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose in water or fire, or expose it to temperatures higher than 140°F (60°C).

CAUTION: Batteries, battery packs, and accumulators should not be disposed of

together with the general household waste.

3–8 Maintenance & Service Guide

Removal & Replacement Procedures

This chapter provides general service information for the workstation. Adherence to the procedures and precautions described in this chapter is essential for proper service.

After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all components operate properly.

4.1 Disassembly Sequence Chart

Use the chart below to determine the disassembly sequence for removing components from the workstation.

4.3 Cable Lock

4.4 Workstation Feet

4.5 Access Panel

4.6 Battery

4.7 Hood Sensor

4.8 Shipping Bracket

4.9.2

4.9.6 RIMM Installation

4.10 Front Bezel

4.11 Blank Drive Bezel

4.12 Front I/O Board and Power Switch Assembly

4.13 EMI/Cooling Shield

4.14.3 Hard Drive from Bays 5 or 6

4.14.4 CD-ROM Drive

4.14.5 Diskette Drive

4.15.1

4.16.1 Main Air Baffle

4.16.2 Power Supply Air Baffle

4.17 Power Supply

4.18.1 Removable Hard Drive Cage

4.18.2 Hard Drive from Removable Hard Drive Cage

4.19.2 Heatsink and Processor

4.20 System Board*

4.21 Rear Fan

4.22 Processor Fan

4.23 Speaker

4.24

4.25 Air Plenum Fan

Expansion Boards*

Memory Expansion Board*

Card Guide*

*These steps are interdependent.

Maintenance & Service Guide 4–1

Removal & Replacement Procedures

4.2 Preparation for Disassembly

See Chapter 3, “Removal and Replacement Preliminaries,” for initial procedures.

1. Close any open software applications.

2. Exit the operating system.

3. Remove any diskette or compact disc from the workstation.

4. Turn off the workstation and any peripheral devices that are connected to it.

CAUTION: Turn off the workstation before disconnecting any cables.

5. Disconnect the power cord from the grounded AC outlet and then from the workstation.

CAUTION: The power supply in the W8000 has an auxiliary power section. This section

is always active as long as the unit is plugged into a live AC outlet. Be sure to turn off the switch and unplug the power cord before performing any service work.

CAUTION: Electrostatic discharge can damage electronic components of the

workstation. Before beginning these procedures, be sure you are properly grounded. See Chapter 3, “Removal and Replacement Preliminaries” for more information.

6. Disconnect all peripheral device cables from the workstation.

During disassembly, label each cable as you remove it, noting its position and

✎

routing. Keep all screws with the units removed.

In some of the removal procedures in this chapter, you will be asked to place the

✎

workstation on its side when servicing certain internal components.

CAUTION: The screws used in the workstation are of different thread sizes and lengths;

using the wrong screw in an application may damage the unit.

4–2 Maintenance & Service Guide

4.3 Cable Lock

The workstation comes standard with a cable lock provision for attaching a padlock and/or cable lock. If installed, the locks must be removed before accessing internal components.

1. Unlock and remove the cable lock or the padlock.

Removal & Replacement Procedures

2. Remove the security bracket (plate) seated over the cable lock bracke

3. Unfasten the retaining screw to release the cable lock bracket.

Maintenance & Service Guide 4–3

Removal & Replacement Procedures

4.4 Workstation Feet

Four (4) rubber feet are mounted to the chassis, as shown below. No parts have to be removed to access the feet. The replacement feet have an adhesive surface and are shipped with a protective backing in place. Remove the backing from the feet before installation.

If necessary, remove the old feet and remove any adhesive residue from the chassis.

To replace the feet, reverse the above procedure.

4–4 Maintenance & Service Guide

4.5 Access Panel

CAUTION: Do not operate the workstation with the access panel removed. The panel is

an integral part of the cooling system; removing it while the system is running may adversely affect data integrity and the life of your system.

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

CAUTION: Before removing the access panel, ensure that the workstation is turned off,

and all cables are disconnected from the back of the workstation.

2. Loosen the four rear panel thumbscrews 1 and slide off the access panel 2.

Removal & Replacement Procedures

WARNING: To reduce the risk of personal injury from hot surfaces, allow the internal

system components to cool before touching them.

WARNING: When replacing the access panel, be sure to tighten all four thumbscrews.

To replace the access panel, reverse the above procedure.

Maintenance & Service Guide 4–5

Removal & Replacement Procedures

4.6 Battery

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

WARNING: Power is continuous to the system board and power supply even when the

power switch is turned off. To prevent damage to the unit, disconnect the power cord from the power source or the unit before beginning disassembly procedures.

2. Remove the access panel (Section 4.5).

3. Locate the battery on the system board. If there are expansion boards installed, you may need to remove them to gain access to the battery.

4. Lift the battery out of the holder.

5. Slide the replacement battery into position with the positive side up. The battery holder automatically secures the battery in the proper position.

6. If you removed expansion boards, reinstall them now.

7. Replace the access panel.

8. Reassemble the workstation.

9. Reconnect the AC power cord and turn on the workstation.

10. Reset the date and time, your passwords, and any special system setups, using Compaq Computer Setup.

WARNING: This workstation contains a lithium-ion battery pack. There is a risk of fire

and chemical burn if the battery pack is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose in water or fire, or expose it to temperatures higher than 60°C (140°F).

In North America, dispose of nickel metal hydride or lithium-ion batteries by taking advantage of

the Compaq battery recycling program. You will be provided with a postage-paid battery pack mailer preaddressed to a reclamation facility where the metals are recycled. Call the telephone number listed for your location in the Contacting Customer Support guide for more information.

In Europe, do not dispose of batteries with general household waste. Dispose of or recycle them by using the public collection system or returning them to Compaq, your authorized Compaq partners, or their agents.

4–6 Maintenance & Service Guide

4.7 Hood Sensor

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

CAUTION: Before removing the access panel, ensure that the workstation is turned off,

and all cables are disconnected from the back of the workstation.

2. Remove the access panel (Section 4.5).

3. Unplug the cable from the system board 1.

4. Slide the sensor toward the front side of the workstation 2.

5. Remove the sensor from the chassis 3.

Removal & Replacement Procedures

To replace the hood sensor, reverse the above procedure.

Maintenance & Service Guide 4–7

Removal & Replacement Procedures

4.8 Shipping Bracket

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

CAUTION: Before removing the access panel, ensure that the workstation is turned off,

and all cables are disconnected from the back of the workstation.

2. Remove the access panel (Section 4.5).

3. Remove the four screws that connect shipping bracket to the front of the chassis.

4. Remove the shipping bracket from the chassis.

To replace the shipping bracket, reverse the above procedure.

4–8 Maintenance & Service Guide

4.9 Memory Components

The W8000 includes a memory expansion board that must be removed from the system board to remove and replace memory modules.

4.9.1 Overview

The W8000 has two Direct Rambus memory channels and uses Error Checking and Correcting (ECC) Direct Rambus Inline Memory Modules (RIMMS). Continuity RIMMs (CRIMMs) are also available to populate empty RIMM slots.

Dual Direct Rambus memory channels operate on the following three principles:

1. Dual channels maximize performance by doubling the speed at which data in transferred to and from memory, compared to single channel systems. Memory hubs divide each main channel into two sub-channels. For example, channel A is divided into channel A-top and channel A-bottom, and channel B is divided into channel B-top and channel B-bottom. Each sub-channel consists of two RIMM sockets.

2. Dual channels operate in unison, not independently, thus identical RIMMs must be installed in pairs across channels. For example, if you install a RIMM in RIMM socket 3 (channel B-top), you must also install an identical RIMM in RIMM socket 4 (channel A-top).

Removal & Replacement Procedures

3. Dual channels must have electrical continuity for your system to boot. For example, if you install identical RIMMs in RIMM sockets 3 and 4, but fail to install CRIMMs in RIMM sockets 1 and 2, the continuity will be broken and your system will not boot.

4. For optimal performance, RIMMs should be placed in the sockets closest to the memory repeater hubs. For example, having RIMMs in sockets 3 & 4 and CRIMMs in sockets 1 & 2 will result in better performance than having RIMMs in sockets 1 & 2 and CRIMMs in sockets 3 & 4.

Maintenance & Service Guide 4–9

Removal & Replacement Procedures

4.9.2 Removing the Memory Expansion Board

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

2. Remove the access panel (Section 4.5).

3. Locate the memory expansion board that is connected to the system board.

4. Remove the torx screw on the back of the metal slot cover that secures the memory board to the expansion board slot.

5. To release the memory expansion board, press downward on the plastic release latch 1 that holds the memory expansion board in the card guide.

6. Carefully remove the memory board from the memory expansion board socket 2.

To install the memory expansion board, reverse the above procedure.

4–10 Maintenance & Service Guide

4.9.3 RIMM Installation Guidelines

WARNING: To reduce the risk of personal injury when replacing or removing RIMMs,

allow the module being removed from the RIMM slot sufficient time to cool. RIMM temperatures can reach 100°C (212°F).

CAUTION: When handling a RIMM, be careful not to touch any of the contacts. Doing so

may damage the module.

CAUTION: Static electricity can damage the electronic components of the workstation or

optional boards. Before beginning these memory upgrade procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object.

When installing RIMMs, you must follow the guidelines listed below or the workstation will not function:

1. A RIMM can be installed only one way. Be sure to match the two key slots on the RIMM with the tabs on the RIMM socket. Push the RIMM down into the RIMM socket, ensuring that it is fully inserted and properly seated, and that the retaining arms are locked in place.

Removal & Replacement Procedures

2. CRIMMs must be installed i n all empty RIMM sockets on channels that are used. The CRIMMs are removed when you populate the sockets with RIMMs. For examples of the correct configuration sequence (Section 4.9.5).

3. Install RIMMs in pairs across both memory channels. Each RIMM socket populated with a RIMM or CRIMM on Channel A must be populated with an identical RIMM or CRIMM on Channel B.

4. Do not exceed 32 Direct RDRAM devices on each Direct Rambus memory channel. A label on the RIMM will indicate the number and speed of Direct RDRAM devices on the RIMM.

The number of Direct RDRAM devices on a RIMM cannot be changed.

✎

5. Use only 800-MHz RIMMs.

6. Use only RIMMs that have been tested and approved by Compaq. Not all RIMMs meet the Compaq standard for quality and reliability.

Only 800-MHz RIMMs can be used in this workstation. The workstation will

✎

not function if RIMMs of different speeds are inserted.

Maintenance & Service Guide 4–11

Removal & Replacement Procedures

4.9.4 RIMM Slot Locations

The W8000 ships with an eight-RIMM socket memory expansion board (two RIMM sockets per memory channel).

Identifier RIMM Socket Memory Channel

RIMM Socket 1 Channel B-Top

RIMM Socket 2 Channel A-Top

RIMM Socket 3 Channel B-Top

RIMM Socket 4 Channel A-Top

RIMM Socket 5 Channel B-Bottom

RIMM Socket 6 Channel A-Bottom

RIMM Socket 7 Channel B-Bottom

RIMM Socket 8 Channel A-Bottom

4.9.5 RIMM Socket Configurations

When installing RIMMs on the eight-RIMM slot memory board, you must follow one of the following four configurations.

CRIMMs must be installed in all unpopulated RIMM sockets on channels

✎

being used.

Config 1

Location

1 Pair

RIMMs

Config 2

2 Pair

RIMMs

Config 3

3 pairs RIMMs

Config 4

4 pairs RIMMS

RIMM Sockets 1 and 2 CRIMM CRIMM RIMM RIMM

RIMM Sockets 3 and 4 RIMM RIMM RIMM RIMM

RIMM Sockets 5 and 6 Empty RIMM RIMM RIMM

RIMM Sockets 7 and 8 Empty CRIMM CRIMM RIMM

4–12 Maintenance & Service Guide

4.9.6 Installing a Memory Device

WARNING: To reduce the risk of personal injury when replacing or removing RIMMs,

allow the module being removed from the RIMM slot sufficient time to cool. RIMM temperatures can reach 100°C (212°F).

CAUTION: When handling a RIMM, be careful not to touch any of the contacts. Doing so

may damage the module.

CAUTION: Static electricity can damage the electronic components of the workstation or

optional boards. Before beginning these memory upgrade procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object.

Before installing additional RIMMs, read “RIMM Installation Guidelines” in this chapter. CRIMMs must be installed in all unpopulated RIMM sockets on channels

✎

being used.

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

Removal & Replacement Procedures

2. Remove the access panel (Section 4.5).

3. Remove the memory expansion board (Section 4.9.2).

4. Press outward on the two RIMM slot retainer latches 1.

5. Place the RIMM in the appropriate RIMM socket 2 ensuring that it is fully inserted and properly seated.

CAUTION: Be sure to follow the correct configuration guidelines or your system will not

function.

6. Press inward on the two retainer latches 3 to secure the RIMM in the socket.

To remove a memory module from a RIMM slot, reverse the above procedure.

Maintenance & Service Guide 4–13

Removal & Replacement Procedures

4.10 Front Bezel

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

CAUTION: Before removing the access panel, ensure that the workstation is turned off,

and all cables are disconnected from the back of the workstation.

2. Remove the access panel (Section 4.5).

3. Press the two front bezel release latches 1 and remove the front bezel 2.

To replace the front bezel, reverse the above procedure.

4–14 Maintenance & Service Guide

4.11 Blank Drive Bezel

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

CAUTION: Before removing the access panel, ensure that the workstation is turned off,

and all cables are disconnected from the back of the workstation.

2. Remove the access panel (Section 4.5).

3. Remove the front bezel (Section 4.10).

4. Pinch together the retainer snaps on the back of the front bezel 1. This allows the bezel blank to move pass the retainer snaps.

5. Rotate the bezel blank outward, detaching it from the front bezel 2.

Removal & Replacement Procedures

To replace the blank drive bezel, reverse the above procedure.

Maintenance & Service Guide 4–15

Removal & Replacement Procedures

4.12 Front I/O Board and Power Switch Assembly

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

2. Remove the access panel (Section 4.5).

3. Remove the front bezel (Section 4.10).

4. Disconnect the cable from the system board 1.

5. Remove the four screws connecting the cage to the chassis 2, then remove the cage from the chassis 3.

6. Disconnect the cable from the I/O board mounted in the cage 4.

7. Thread the cable though the hole in the front of the chassis 5 and through the hole in the side of the air plenum.

8. Remove the four screws connecting the I/O board to the cage 6.

9. Remove the I/O board from the cage 7.

To replace the assembly, reverse the above procedure.

4–16 Maintenance & Service Guide

4.13 EMI/Cooling Shield

An EMI/cooling shield covers bays 5 and 6 to provide proper cooling and EMI protection.

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

CAUTION: Before removing the access panel, ensure that the workstation is turned off,

and all cables are disconnected from the back of the workstation.

2. Remove the access panel (Section 4.5).

3. Remove the front bezel (Section 4.10).

4. Remove the two screws that connect the EMI/cooling shield to the front of the chassis.

5. Remove the EMI/cooling shield from the drive slot.

Removal & Replacement Procedures

Important: Replace the shield after a hard drive is installed in the bay.

To replace an EMI/cooling shield, reverse the above procedure.

Maintenance & Service Guide 4–17

Removal & Replacement Procedures

4.14 Mass Storage Devices

4.14.1 Drive Positions

The W8000 can house up to seven mass storage devices. The following illustration identifies the physical drive locations. Refer to the corresponding table for a list of the recommended drive configurations.

Item Component Description

Bay 1 Part of the removable hard drive cage. A 3.5-inch, third-height

bay that supports a 1.0-inch hard drive or a 1.6-inch hard drive.

Bay 2 Part of the removable hard drive cable. A 3.5-inch, third-height

bay that supports a 1.0-inch hard drive. Bay 2 is not available when a 1.6-inch hard drive is installed ion either bay 1 or bay 3.

Bay 3 Part of the removable hard drive cage. A 3.5-inch, third-height

bay that supports a 1.0-inch hard drive or a 1.6-inch hard drive.

Bay 4 5.25-inch, half-height bay that supports 1.0-inch or 1.6-inch

storage devices. Either a CD-ROM drive or DVD-ROM drive is shipped in bay 4.

Bay 5* 5.25-inch, half-height bay supporting 1.0-inch or 1.6-inch storage

devices.

Bay 6*

5.25-inch, half-height bay supporting 1.0-inch or 1.6-inch storage devices.

*An optional Zip drive can be installed in bay 5 or 6.

CAUTION: If a drive is not installed in bays 5 or 6 or if the bays are empty, be sure an

EMI/cooling shield is installed to ensure proper airflow and cooling.

Bay 7 3.5-inch, third-height bay that supports a 1.0-inch device. A

standard 3.5-inch diskette drive is shipped in bay 7.

4–18 Maintenance & Service Guide

4.14.2 Spare Screws

A total of 17 extra spare screws are provided on the side of the air plenum. The top group of eight screws are standard 6-32 x 3/16-inch long screws and are for installing hard drives in the removable hard drive cage. The bottom group of nine screws are metric M-3 x 5 mm long and are for installing removable media storage devices in the front drive bays.

Removal & Replacement Procedures

Maintenance & Service Guide 4–19

Removal & Replacement Procedures

4.14.3 Removing a Hard Drive from Bays 5 or 6

Drive bays 5 and 6 can be configured with either a 1.0-inch or 1.6-inch hard drive. To remove a hard drive:

Before removing a SCSI device, please read the “SCSI Devices” appendix.

✎

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

2. Remove the access panel (Section 4.5).

3. Remove the front bezel (Section 4.10).

4. Remove the EMI/Cooling shield (Section 4.13).

5. Remove the cables from the back of the hard drive.

6. Remove the screws from the side of the drive and remove the drive from the drive bay.

To replace the hard drive, reverse the previous procedure.

4–20 Maintenance & Service Guide

4.14.4 CD-ROM Drive

This procedure also applies to removing other similar devices.

✎

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

2. Remove the access panel (Section 4.5).

3. Remove the front bezel (Section 4.10).

4. Remove the two screws securing the right side of the drive.

5. Slide the drive slightly out of the drive cage.

6. Disconnect all cables from the rear of the drive.

7. Pull the drive straight out of the chassis.

Removal & Replacement Procedures

To replace the drive, reverse the above procedure.

CAUTION: Use only 3/16-inch or 5-mm long screws as guide screws. Longer screws can

damage the internal components of the drive. Be sure to transfer the guide screw from the old drive to the new one. The screw is installed on the right front side of the drive. Note that extra guide screws are provided on the side of the air plenum.

CAUTION: When servicing the workstation, be sure cables are placed in their proper

locations during the reassembly process. Improper cable placement can damage the workstation.

Maintenance & Service Guide 4–21

Removal & Replacement Procedures

4.14.5 Diskette Drive

Important: Before beginning the removal procedure, be sure there is no diskette in the drive.

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

CAUTION: Before removing the access panel, ensure that the workstation is turned off,

and all cables are disconnected from the back of the workstation.

2. Remove the access panel (Section 4.5).

3. Remove the front bezel (Section 4.10).

4. Disconnect the cables from the back of the diskette drive.

5. Remove the two screws that secure the diskette drive.

6. Pull the diskette drive straight out of the drive cage.

To replace the diskette drive, reverse the above procedure.

CAUTION: Use only 3/16-inch or 5-mm long screws. Longer screws can damage the

internal components of the drive. If you are replacing the drive with a new one, transfer the guide screw from the old drive to the new one. Be sure the guide screw is placed in the first hole on the right side of the drive. Note that extra guide screws are provided on the side of the air plenum.

CAUTION: When servicing the workstation, be sure cables are placed in their proper

locations during the reassembly process. Improper cable placement can damage the workstation.

4–22 Maintenance & Service Guide

4.15 Expansion Boards

The W8000 supports 1.5V (typically 4X) AGP and AGP Pro cards only. Older

✎

type AGP cards (3.3V) are not supported and will NOT fit in the AGP socket.

This workstation contains one AGP and six PCI sockets. The following illustration identifies the physical location of these sockets.

Removal & Replacement Procedures

Item Component

1 One 1.5V, AGP Pro Socket

2 Four 32-bit, 33-MHz PCI Sockets; primary bus

3 Two 64-bit, 66-MHz PCI Sockets; secondary bus

Maintenance & Service Guide 4–23

Removal & Replacement Procedures

4.15.1 Removing an Expansion Board

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

CAUTION: Before removing the access panel, ensure that the workstation is turned off,

and all cables are disconnected from the back of the workstation.

2. Remove the access panel (Section 4.5).

3. Disconnect any cables attached to the expansion board.

4. Remove the expansion board retaining screw.

5. Hold the board at each end and carefully rock it back and forth until the connectors pull free from the slot. Do not scrape the board against other components.

6. Store the board in antistatic packaging.

7. Install an expansion slot cover to close the open slot.

8. Replace the access panel.

9. Reassemble the workstation.

10. Reconfigure the workstation, if necessary.

4–24 Maintenance & Service Guide

4.15.2 Installing an Expansion Board

1. Prepare the workstation for disassembly (Section 4.2).

2. Remove the access panel (Section 4.5) and locate the correct vacant PCI slot.

3. Remove the screw securing the expansion slot cover, then remove the slot cover

4. Slide the expansion board into the expansion slot and press the board firmly into place.

Removal & Replacement Procedures

Important: When installing an expansion board, press firmly on the board so that the whole connector seats properly in the expansion board slot.

If you are installing a full-length PCI board, make sure the card is engaged with

✎

the card guide. An AGP expansion board (with additional components or PCI expansion boards

attached) may occupy up to two adjacent PCI sockets on the workstation system board.

5. Replace the screw at the side of the expansion slot.

6. Replace the access panel.

7. Connect external cables to the installed board, if necessary.

8. Reassemble the workstation.

9. Reconfigure the workstation, if necessary.

Maintenance & Service Guide 4–25

Removal & Replacement Procedures

4.16 Air Baffles

4.16.1 Main Baffle

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

CAUTION: Before removing the access panel, ensure that the workstation is turned off,

and all cables are disconnected from the back of the workstation.

2. Remove the access panel (Section 4.5).

Depending on workstation options, you may have to unplug SCSI and/or IDE

✎

cables from the system board. Remove the memory expansion board to gain access to these cables.

3. Grasp the end of the air baffle seated at the rear of the chassis.

4. Rotate the end of the baffle in an upward direction 1.

5. Pull the baffle tab out of the front fan bracket 2.

6. Lift the baffle out of the chassis.

To replace the air baffle, reverse the above procedure.

4–26 Maintenance & Service Guide

4.16.2 Power Supply Air Baffle

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

CAUTION: before removing the access panel, ensure that the workstation is turned off,

and all cables are disconnected from the back of the workstation.

2. Remove the access panel (Section 4.5).

3. Remove the clear, main baffle from the chassis (Section 4.16.1).

4. Remove the power supply air baffle from the hook and loop adhesive tabs.

Removal & Replacement Procedures

To replace the power supply air baffle, reverse the above procedure. Route the drive power cables between the baffle and the power supply.

✎

Maintenance & Service Guide 4–27

Removal & Replacement Procedures

4.17 Power Supply

WARNING: Only qualified personnel should perform this procedure. Do not reconnect

power to the workstation until the workstation cover is replaced. Connecting the power before replacing the workstation cover can result in personal injury or equipment damage.

WARNING: To reduce the risk of electric shock or damage to the equipment:

■ Do not disable the power cord grounding plug. The ground plug is an important

safety feature.

■ Plug the power cord into a grounded (to earth) electrical outlet that is easily

accessible at all times.

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

CAUTION: Before removing the access panel, ensure that the workstation is turned off,

and all cables are disconnected from the back of the workstation.

2. Remove the access panel (Section 4.5).

3. Remove the main air baffle (Section 4.16.1).

4. Remove the power supply air baffle (Section 4.16.2).

5. Unplug all power cables from the system board.

6. Remove the five screws that secure the power supply to the back of the chassis.

7. Slide the power supply toward the front of the chassis, then pull up to remove it.

To replace the power supply, reverse the above procedure.

4–28 Maintenance & Service Guide

Removal & Replacement Procedures

4.18 Removable Hard Drive Cage

4.18.1 Removing the Removable Hard Drive Cage

Drive bays 1 through 3 are located in the removable hard drive cage.

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

2. Remove the access panel (Section 4.5).

3. Loosen the power supply air baffle, as necessary (Section 4.16.2).

4. Remove/loosen the screws 1 on top of the cage.

The removable hard drive cage may be retained by either torx screws or

✎

thumbscrews.

5. Hold the tab 2 and pull the cage up and out of the chassis.

To install the removable hard drive cage, reverse the above procedures.

CAUTION: The power supply air baffle must be properly replaced to sufficiently cool the

hard drive(s).

Maintenance & Service Guide 4–29

Removal & Replacement Procedures

4.18.2 Removing a Hard Drive from the Removable Hard Drive Cage (Bays 1-3)

The removable hard drive cage supports up to three 1.0-inch hard drives or two

✎

1.6-inch hard drives. Other than using different screw holes, the removal and replacement for both drives is the same.

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

2. Remove the access panel (Section 4.5).

3. Disconnect the cables from the back of the hard drive.

4. Remove the removable hard drive cage from the chassis (Section 4.18.1).

5. Remove the four hard drive screws that secure the hard drive in the removable hard drive cage, then pull the hard drive straight out of the hard drive cage.

CAUTION: When servicing the workstation, make sure cables are placed in their proper

locations during the reassembly process. Improper cable placement can damage the workstation.

4–30 Maintenance & Service Guide

Removal & Replacement Procedures

4.18.3 Installing a Hard Drive in the Removable Hard Drive Cage (Bays 1-3)

The removable hard drive cage can be configured with up to three 1.0-inch hard drives or two 1.6-inch hard drives. Other than using different screw holes, the installation for both typesofdrivesisthesame.

Before installing a SCSI device, please read the “SCSI Devices” appendix.

✎

If only one SCSI hard drive is used, install it in bay 2.

✎

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

2. Remove the access panel (Section 4.5).

3. Remove the removable hard drive cage from the chassis (Section 4.18.1).

4. Remove four hard drive screws (top group of screws) from the side of the air plenum located at the front of the workstation.

Maintenance & Service Guide 4–31

Removal & Replacement Procedures

5. Install the drive into the drive cage using four screws. See the following illustration for screw locations.

Item Location

1 1.0-inch drive 2 1.6-inch drive 3 1.0-inch drive

1.0-inch or 1.6-inch drive

6. Reinstall the removable hard drive cage.

7. Connect the SCSI signal cables and power cables to the back of the drive(s).

8. Reassemble the workstation.

4–32 Maintenance & Service Guide

Removal & Replacement Procedures

4.19 Heatsink and Processor

4.19.1 Separating the Heatsink-Processor Assembly

The following sequential events must take place in order to remove the existing heatsink and processor assembly:

1. Heat the heatsink-processor assembly to an optimum temperature to break the compound bonding them together. See the following sections:

❏ “Heatsink Cool-Down Time” ❏ “Heatsink Warm-Up Time”

2. Separate the heatsink from the processor.

3. Release the processor from the processor socket.

Heatsink Cool-Down Time

The heat generated from the processor core transfers to the heatsink making the assembly too hot to handle. From power-on to power-off, it takes up to 13 minutes to cool the heatsink sufficiently so that it can be handled comfortably and the compound holding it to the processor remains pliable.

Heatsink Warm-Up Time

Minimal warm-up time is required to generate enough heat to soften the compound holding the heatsink to the processor.

CAUTION: Lifting the heatsink straight up while it is in a cold state can result in damage

From power-off to power-on, see the following steps to warm (but not overheat) the heatsink so that the heatsink can be handled comfortably, and the compound holding it to the processor will be pliable.

1. Turn on the workstation and allow the operating system to boot.

2. Shut down the operating system properly, then turn off the workstation and any external devices.

3. Disconnect the power cord from the grounded AC outlet.

Maintenance & Service Guide 4–33

Removal & Replacement Procedures

4.19.2 Removing the Heatsink and Processor

WARNING: To reduce the risk of personal injury from hot surfaces, allow the internal

system components to cool before touching them.

CAUTION: Lifting the heatsink straight up while it is in a cold state can result in damage

to the processor, because it may pull the processor out of the processor socket. If this should occur, you will need to open the processor socket, by lifting up on the processor retention lever, before attempting to install the new processor.If the heatsink is cold to the touch, see “Guidelines for Separating the Heatsink/Processor Assembly” in this chapter.

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

2. Remove the access panel (Section 4.5).

3. Remove the memory expansion board (Section 4.9.2).

4. Disconnect the drive cables from the system board and move them away from the processor area.

5. Remove the main air baffle (Section 4.16.1).

6. Ensure the heatsink is warm to the touch (Section 4.19.1).

7. Release the two metal clips that hold the heatsink to the processor retention module.

8. Twist the heatsink slightly 1 to break the compound that holds it to the processor.

9. Lift the heatsink off the processor 2.

4–34 Maintenance & Service Guide

Removal & Replacement Procedures

10. Open the processor socket by pulling up on the processor retention lever 1.

11. Lift the processor out of the processor socket 2.

To replace the processor, reverse the above procedure. If installing a new heatsink, be sure to remove the tear-away tab covering the

✎

thermal material on the heatsink.

Maintenance & Service Guide 4–35

Removal & Replacement Procedures

4.19.3 Installing an Additional Processor

A manual Hardware Abstraction Layer (HAL) upgrade is necessary when

✎

installing a second processor after the system has gone through the software bundling process. If a second processor is installed prior to unbundling, a manual upgrade is not necessary.

Hardware Abstraction Layer

To update Windows NT 4.0 or Windows 2000 to recognize a second processor using the Hardware Abstraction Layer (HAL), complete the following steps:

1. Start Windows.

2. Insert the upgrade diskette. Then select Start > Run.

3. Type A:\setup.exe and select OK.

4. Select Uniprocessor HAL and Kernel.

5. Select Upgrade and insert the media used to upgrade the operating system to a new Service Pack if requested; then click Retry.

6. If prompted, insert the operating system CD and click OK.

7. After the installation is complete, close the setup program and restart the workstation.

Additional Processor Installation

You can upgrade the workstation to a multiprocessor system. When you install a second processor, it must be the same speed, cache size, and type as the existing processor.

CAUTION: Static electricity can damage the electronic components of the workstation.

Before beginning these procedures, be sure that you are discharged of static electricity by briefly touching a grounded metal object.

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

2. Remove the access panel (Section 4.5).

3. Remove the memory expansion board (Section 4.9.2).

4. Disconnect the cables from the hard drive and move them away from the processor area.

5. Remove the main air baffle (Section 4.16.1).

4–36 Maintenance & Service Guide

Removal & Replacement Procedures

6. Install the second processor:

❏ Open the processor socket by pulling up on the processor retention lever 1.

CAUTION: Processor pins are delicate and bend easily. Use extreme care when placing

the processor in the socket.

❏ Insert the new processor 2 and close the retention lever. Ensure that the processor is

locked into place and is not loose in the socket.

❏ Ensure the thermal pad is on the bottom of the heatsink 3 before setting the heatsink

on top of the processor.

❏ Install the two metal clips 4 that hold the heatsink to the processor retention

module.

Ensure the metal clips are firmly attached to the retaining clips.

✎

CAUTION: A processor must always be installed in processor socket A or the workstation

will not function.

Maintenance & Service Guide 4–37

Removal & Replacement Procedures

7. Install the Voltage Regulator Module (VRM):

❏ Make sure the VRM is fully inserted and properly seated.

CAUTION: You must install a Compaq approved VRM when installing a second

processor. Using a VRM that is incompatible with the primary VRM may severely, permanently damage the system board.

❏ Install the VRM clip, making sure the clip snaps into place.

8. Reinstall the main air baffle.

CAUTION: The air baffle is essential to proper cooling of the processors. Without it, the

processors will slow down to avoid overheating.

Air flows across the processors from front to back. The front fan moves air over

✎

the processors while the back fan pulls the air out of the chassis.

9. Reattach the hard drive cables, memory expansion board, and reassemble the workstation.

CAUTION: If only one processor is installed and you are replacing that processor, be

sure to install the processor in the primary processor socket or your workstation will not function.

4–38 Maintenance & Service Guide

4.20 System Board

The system board has nine LEDs to help troubleshoot component-related problems. See Section 5.1.2 for more information.

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

CAUTION: Before removing the access panel, ensure that the workstation is turned off,

and all cables are disconnected from the back of the workstation.

2. Remove the access panel (Section 4.5).

3. Remove the memory expansion board (Section 4.9.2).

4. Remove any expansion boards (Section 4.15.1).

5. Remove the main air baffle (Section 4.16.1).

6. Disconnect and remove all cables plugged into the system board.

7. Remove the processor heatsink(s) (Section 4.19.2).

8. Remove the nine screws securing the system board to the chassis 1.

9. Remove the four screws (one under each heatsink bracket) that connect the system board to the chassis 2.

Removal & Replacement Procedures

10. Carefully remove the system board from the chassis 3.

To install a new system board, reverse the above procedure. Plug the CD analog audio cable back in before reinstalling the system board.

✎

Maintenance & Service Guide 4–39

Removal & Replacement Procedures

4.21 Rear Fan

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

2. Remove the access panel (Section 4.5).

3. Remove the main air baffle (Section 4.16.1).

4. Disconnect the fan’s power cable from the system board.

5. Remove the four screws securing the fan to the back of the chassis 1.

6. Remove the fan from the chassis 2.

To replace the system fan, reverse the above procedure.

4–40 Maintenance & Service Guide

4.22 Processor Fan

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

2. Remove the access panel (Section 4.5)

3. Remove the main air baffle (Section 4.16.1)

4. Disconnect the fan power cable from the system board.

5. Remove the screw securing the fan assembly to the air plenum.

6. Lift the fan assembly out of the chassis.

Removal & Replacement Procedures

7. Remove the four screws that connect the fan to the bracket.

8. Remove the fan from the bracket.

To replace the processor fan, reverse the above procedure.

Maintenance & Service Guide 4–41

Removal & Replacement Procedures

4.23 Speaker

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

CAUTION: Before removing the access panel, ensure that the workstation is turned off,

all cables are disconnected from the back of the workstation, and the power cord is disconnected from the grounded AC outlet.

2. Remove the access panel (Section 4.5).

3. Remove the main air baffle (Section 4.16.1).

4. Remove the front fan (Section 4.22).

5. Unplug the speaker connector from the system board and remove the cable from the clip.

6. Remove the four screws securing the front of the speaker to the chassis.

7. Remove the speaker from the workstation by sliding it back, then lifting it up and out of the chassis.

To replace the speaker, reverse the above procedure.

4–42 Maintenance & Service Guide

4.24 Card Guide

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

2. Remove the access panel (Section 4.5).

3. Remove the memory expansion board (Section 4.9.2).

4. Remove any expansion cards from the card guide (Section 4.15.1).

5. Remove the main air baffle (Section 4.16.1).

6. Remove the front fan (Section 4.22).

7. Remove the remaining screw attaching the card guide bracket to the air plenum.

Removal & Replacement Procedures

8. Remove the four screws securing the card guide to the card guide bracket.

9. Remove the card guide from the bracket.

To replace the card guide, reverse the above procedure.

Maintenance & Service Guide 4–43

Removal & Replacement Procedures

4.25 Air Plenum Fan

1. Prepare the workstation for disassembly (Section 4.2), then place it on its side.

2. Remove the access panel (Section 4.5).

3. Remove the main air baffle (Section 4.16.1).

4. Remove the processor fan (Section 4.22).

5. Remove the card guide (Section 4.24).

6. Disconnect the fan cable from the system board and remove the cable from the clip.

7. Remove the four screws securing the fan to the fan bracket 1.

8. Remove the fan from the fan bracket 2.

To replace the system fan, reverse the above procedure.

4–44 Maintenance & Service Guide

5.1 System Board

Connectors and Jumpers

Maintenance & Service Guide 5–1

Connectors and Jumpers

5.1.1 Connectors and Jumpers

Ref Description Ref Description

E1 Bus parking disable header P10 Diskette drive connector

J2 VRM socket B P11 Auxiliary audio-in connector

J14 Front I/O board connector P12 AOL connector

J19 VRM socket A P20 Primary Ultra ATA connector

J20-23 32-bit, 33-MHz PCI sockets P21 Secondary Ultra ATA connector

J24-25 64-bit, 66-MHz PCI sockets P29 SCSI LED connector

J30 Memory expansion board socket P34 Boot block protection disable

header

J37 Ultra160 SCSI connector (Channel A) P49 Power-on password enable

jumper

J38 Ultra160 SCSI connector (Channel B) P70 Processor fan connector

J40 1.5V AGP Pro socket P89 Serial port connector

LEDs Troubleshooting LEDs* P120 Front fan connector

P1 24-position power connector SW50 Clear CMOS Button

P2 22-position power connector XBT1 Battery

P6 Front speaker connector XU1 Primary Processor socket

P7 CD-ROM audio connector XU2 Secondary Processor socket

P8 Rear fan connector

5–2 Maintenance & Service Guide

5.1.2 System Board Troubleshooting LEDs

There are nine diagnostic LEDs next to the CMOS button on the system board to help you troubleshoot component-related problems.

LED Definition LED Definition

1 Red–Processor A Error 6 Green–All power good

Connectors and Jumpers

2 Yellow–VRM A error 7 Orange–System board

regulator bad

3 Orange–Processor(s) hot 8 Yellow–VRM B error

4 Green–Turn on power supply 9 Red–Processor B error

5 Blue–Memory board error

LED Based Hardware Troubleshooting Tables

The error detection circuit can fail. If the system is operating normally, do not

✎

replace any components. If the system will not boot, and replacing the indicated component does not solve the problem, the system board may need to be replaced.

1. With system plugged in but turned OFF, are any LEDs lit?

LED Problem indicated Solution

Red Processor A not properly inserted or

is missing.

Yellow Voltage Regulator Module (VRM) is

not fully inserted or is missing.

Blue The memory board is not properly

inserted or is missing.

Make sure processor is properly latched in its socket.

Replace processor.

Reseat indicated VRM.

Replace indicated VRM.

Reseat the memory expansion card.

Replace the memory expansion card.

Maintenance & Service Guide 5–3

Connectors and Jumpers

2. With system turned ON, are any LEDs lit?

LED Problem indicated Solution

None lit No power to the system. Make sure AC power cable is connected to

1 Green Only partial power to system

1 Green + Orange

1 Green + Blue

1 Green + Yellow

1 Green + 2 Red

wall outlet and system power supply.

Make sure power supply connectors are connected to the system board.

I/O expansion board disconnected.

The memory board is not properly inserted or is

Make sure I/O expansion board cable is connected.

Make sure memory expansion card is firmly seated.

missing.

Defective system board. Replace system board.

Defective power supply. Replace power supply.

Make sure power supply connectors are

board.

connected to the system board.

Electrical short. Check cables for pinching and/or damage,

and for metal making contact with any board. Power supply may be crowbarred.

Defective power supply. Replace power supply.

Shorted VRM. Replace VRM. An internally shorted VRM

will cause the power supply to crowbar.

Defective system board. Replace system board.

Unseated or defective memory expansion board.

Low VRM output voltage. (Text adjacent to the LED shows which VRM is bad.)

Reseat the memory expansion board.

Replace the memory expansion board.

Reseat indicated VRM.

Replace indicated VRM.

Replace processor(s).

Processor A and Processor

Make sure both processors are identical. B are reporting different Voltage IDs. This occurs if processor speeds are different.

A VRM is pulling down a

Replace VRM(s). Voltage ID line.

5–4 Maintenance & Service Guide

2. With system turned ON, are any LEDs lit? (Continued)

LED Problem indicated Solution

2 Green + Red

2 Green + Orange

2 Green Power rails appear to be OK,

A processor is reporting an internal error. (Text adjacent to the LED shows which processor has the error.)

Note: If VRM B is

✎

installed and processor B is not, the processor B error LED may be lit. The system works normally in this situation.

A processor is reporting it is too hot.

and the processors are not reporting an internal error. The machine is probably hanging during POST.

Reboot the system to see if the problem

goes away.

Make sure the processor is properly latched

in its socket.

Verify the latest ROM (microcode patch) is

being used.

Replace the processor.

Make sure airflow in and out of the system is

not blocked.

Make sure processor air baffle is properly

installed.

Make sure processor fan(s) is installed,

connected to the system board, and

functioning.

Make sure the heatsink(s) are properly

seated.

Make sure the heatsink(s) are installed with

thermal grease.

If you have a Port 84 card, put it in and see

what code is shown when the system is

hanging.

Otherwise, refer to the keyboard, front

panel LEDs, and audible beeps error

reporting codes.

Connectors and Jumpers

Maintenance & Service Guide 5–5

Connectors and Jumpers

5.1.3 Disable and Clear Password Jumper

To disable the Power-On and Setup Password features, or to clear the Power-On and Setup Passwords if you forget them and cannot access the workstation system or Computer Setup, follow these steps:

1. Turn off the workstation. Disconnect the power cord from the grounded AC outlet.

2. Remove the access panel to access the P49 Jumper on the system board.

3. Remove the P49 Jumper.

4. Reassemble the workstation and reconnect the power cord to the power connector on the rear of the workstation and to the electrical wall outlet.

5. Turn on the workstation.

Important: To reenable the Power-On Password feature, reinstall the P49 Jumper.

Important: Clearing the Power-On Password will also clear the Setup Password. Be sure to

reestablish your Setup Password after clearing the Power-On Password.

5–6 Maintenance & Service Guide

5.1.4 Clearing CMOS

The workstation configuration memory (CMOS) may occasionally be corrupted. When this occurs, it is usually due to software or hardware that is not functioning accurately, or to the addition or removal of expansion boards. If the workstation configuration memory becomes corrupted, it is necessary to clear the configuration memory.

1. Turn off the workstation and any external devices, then disconnect the power cord from the grounded AC outlet.

CAUTION: When the unit is plugged in, the power supply always has 5 volts applied to

the system board even when the unit is turned off. Failure to disconnect the power cord can result in damage to the system.

CAUTION: Static electricity can damage the electronic components of the workstation or

optional equipment. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object.

2. Remove the access panel to access the system board.

3. Locate the SW50 pushbutton switch on the system board.

Connectors and Jumpers

4. Press the SW50 pushbutton switch to clear the workstation CMOS.

5. Replace the access panel.

6. Reconnect the network cable and external devices.

7. Plug in the workstation and turn on the power.

When the Clear CMOS Button is pressed, your passwords will become invalid

✎

because the passwords are stored in the configuration memory. Reset your passwords and any special system setups.

Maintenance & Service Guide 5–7

Connectors and Jumpers

5.2 Mass Storage

The W8000 supports Ultra-160 SCSI, Wide Ultra2 SCSI, and Ultra ATA hard drives.

5.2.1 Hard Drives

Refer to the labels on individual drives for pin and jumper settings.

5.2.2 CD-ROM or DVD-ROM Drive

5.2.3 Zip Drive

The jumper positions for the 100- and 250-MB Zip drives are identical.

5–8 Maintenance & Service Guide

SCSI Guidelines

When installing and operating SCSI devices, you must follow these guidelines:

■ A narrow (50-pin) SCSI controller allows you to daisy-chain up to 7 additional SCSI

devices. Counting the controller, that amounts to 8 total SCSI devices.

■ A wide (68-pin) SCSI controller allows you to daisy-chain up to 15 additional SCSI

devices. Counting the controller, that amounts to 16 total SCSI devices.

■ If two narrow (50-pin) SCSI controllers are each connected to separate system board

SCSI connectors, each controller may have seven SCSI devices attached. Counting the controller, this gives a total of 16 SCSI devices on the system.

■ Compaq does not recommend mixing different width SCSI devices on the same SCSI

chain or on the same SCSI channel. Mixing devices of different widths on the same chain or channel will always result in a data transfer rate of the slowest machine in that chain. The only exception to this is that Ultra Wide SCSI devices will cause a speed degradation when mixed with other 68-pin devices.

SCSI Devices

■ If multiple SCSI devices are used, split the devices between Channels A and B for

optimum performance. Cable length for the second channel should not be longer than 18 inches.

■ If two controllers are used, each may use SCSI devices having widths and speeds

different from the other. If a 68-pin data cable is used on a controller having 50-pin SCSI devices, use an internal cable adapter (Compaq number 199618-001) or an external cable adapter (Compaq number 270187-B21).

CAUTION: Do not route data cables near the air intake to the power supply. Cables

routed in this manner may block the airflow and cause the computer to overheat.

All SCSI controllers require a unique SCSI ID (0-7 or 8-15) for each SCSI device installed. The controller identifies a SCSI device by its SCSI ID number rather than its location. Moving a SCSI device from one position to another on the SCSI chain does not affect communication between the controller and the device. The reserved and available SCSI ID numbers for SCSI devices are:

■ 0 is reserved for the primary hard drive.

■ 7 is reserved for the SCSI controller.

■ 1 through 6 and 8 through 15 are available for all other SCSI devices.

Maintenance & Service Guide A–1

SCSI Devices

■ 68-pin SCSI controllers require a 53 inch maximum length-twisted pair, LVD cable

with built-in terminator, maximum of 5 drives with a minimum driving spacing of

5.25 inches.

■ Every SCSI chain or circuit must be terminated (closed) at both ends. Some system

boards have both ends of the SCSI cable connected to, and terminated by, the system board. Termination can be accomplished in one of several ways

Use a cable with a built-in terminator.

❏

❏ Use a cable with a terminating resistor plug in the last connector. ❏ Connect a SCSI device with its termination enabled into the last connector. ❏ Connect an external SCSI device with its termination enabled to the external

SCSI connector on the rear panel of the computer.

■ Turn on all external SCSI devices before turning on the power to the computer. This

enables the SCSI controller to recognize the external devices.

Using the Multi-Mode SCSI Cable

Some products ship standard with a multi-mode SCSI cable having a terminator 1 on one end. This cable supports both low voltage differential (LVD) and single ended (SE) devices. One end of the cable connects to the internal LVD/SE connector on the system board, while the remaining connectors being used on the hard drives in the hard drive bays.

The multi-mode cable included with the computer may differ from the one

✎

pictured.

For additional information about installing optional SCSI devices, refer to the documentation included with the device option kit.

A–2 Maintenance & Service Guide

Using SCSISelect with SCSI Devices

The Ultra160 and faster SCSI host adapters includes the SCSISelect utility to configure the host adapter and to run the SCSI disk utilities. To run the SCSISelect utility:

■ In POST Messages Enabled mode—Press Ctrl+A when the Press<Ctrl><A> for

SCSISelect Utility message appears during POST.

■ In POST Messages Disabled mode—When the Compaq logo screen appears, press any

key to exit the logo screen. Immediately after exiting the logo screen, press Ctrl+A to access the SCSISelect utility.

A menu appears with the following options:

■ Configure/View Host Adapter Settings ❏ SCSI Bus Interface Definitions

◆ HostAdapterSCSIID

◆ SCSI Parity Checking

◆ Host Adapter SCSI Termination

❏ Additional Options

SCSI Devices

■ SCSI Disk Utilities

■ Lists all SCSI devices and SCSI ID numbers

For information about configuring POST message display status refer to the

✎

Computer Setup Guide for additional information.

SMART

The Self Monitoring Analysis and Reporting Technology (SMART) IDE and SCSI hard drives for the Compaq Personal Computers and Workstations have built-in drive failure prediction that warns the user or the network administrator of an impending failure or crash of the hard drive. The SMART drives track fault prediction and failure indication parameters such as re-allocated sector count, spin retry count, and calibration retry count. If the drive determines that a failure is imminent, it generates a fault alert.

◆ Boot Device Options

◆ SCSI Device Configuration

◆ Advanced Configuration Options

Maintenance & Service Guide A–3

Specifications

System Specifications

Dimensions (with bezel and without feet)

Height 18.7 inch 47.50 cm

Depth 23.2 inch 58.90 cm

Width 8.03 inch 20.40 cm

Weight 54.75 lb 24.89 kg

Power Supply Input Requirements

Rated Input Voltage 100 VAC to 120 VAC 200 VAC to 240 VAC

Rated Input Current 8.6 A 4.3 A

Rated Input Frequency 50 Hz to 60 Hz 50 Hz to 60 Hz

Input Power 770 W 770 W

Input Power (BTU/h) 2630 BTU/h 2630 BTU/h

Power Supply Output Power

Rated Steady-State Power 500 W 500 W

Maximum Peak Power 525 W 525 W

Relative Humidity

Operating 20% to 80% 20% to 80%

Non-operating 10% to 95% 10% to 95%

Temperature

Operating 50°F to 104°F 10°C to 40°C

Non-operating -40°F to 149°F -40°C to 65°C

System Interrupts

For hardware IRQ, DMA, I/O, and system memory map information, refer to the Illustrated Parts Map for this workstation.

Maintenance & Service Guide B–1

Index

access panel

removal and replacement 4–5

air baffle

removal and replacement 4–28

air plenum fan

removal and replacement 4–46

AOL connector 5–2

Battery

location 5–2

battery

proper disposal 4–6

removal and replacement 4–6 bay configurations 4–20 bezel

drive 4–17

front 4–16 brackets

removal and replacement

cable lock bracket 4–3

cable

multi-mode SCSI A–2

SCSI adapter A–1 cable lock bracket

removal and replacement 4–3 card guide

removal and replacement 4–45 CD-ROM drive 4–20

connector 5–2

removal and replacement 4–23 chain termination, SCSI A–2 cleaning

computer 3–5

keyboards 3–5

mouse 3–6 clear password header 5–6 CMOS

clearing when corrupted 5–7

CMOS Pushbutton Switch 5–2

reset switch 5–7 computer cleaning 3–5 configuration

drives 4–20

configuration memory 5–7 connectors

audio line-in 1–3 audio line-out 1–3 CD-ROM headphone 1–2 ethernet 1–3 headphone 1–2 keyboard 1–3 microphone 1–2 mouse 1–3 parallel 1–3 power button 1–2 power cord 1–3 serial 1–3 Ultra 160 SCSI 1–3 universal serial bus 1–2 universal serial bus (USB) 1–3

Video (monitor) 1–3 connectors and jumpers 5–1 cooling shield

removal and replacement 4–19 CRIMM 4–9

disassembly chart 4–1 diskette drive

connector 5–2

removal and replacement 4–24 drive bays 1–4 drive bezel

removal and replacement 4–17 drives

configuration 4–20

DVD-ROM 1–4

hard drives 1–4

jumper positions 5–8

positions 1–4 DVD-ROM drive 4–20

removal and replacement 4–23

electrostatic discharge (ESD) 3–1 EMI/cooling shield

removal and replacement 4–19 ESD

Seeelectrostatic discharge 3–1 ethernet connector 1–3

Maintenance & Service Guide Index–1

expansion board

installing 4–27 removal and replacement 4–26 removing 4–26

expansion slot locations 4–25

fan

air plenum 4–46 processor 4–43

rear 4–42 features 1–2 feet

removal and replacement 4–4 front bezel

removal and replacement 4–16 front fan

connector 5–2 front I/O board and power switch assembly

removal and replacement 4–18 front panel controls and LEDs 1–2

grounding methods 3–3

hard drive

installing in removable hard drive cage 4–33

proper handling 3–7

removal and replacement 4–22 Hardware Application Layer (HAL) 4–38 headphone

connector 1–2 heatsink

cool down time 4–35

removal and replacement 4–36

separating from processor 4–35

warm up time 4–35 hood sensor

removal and replacement 4–7

, 4–32

ID numbers, SCSI A–1 Illustrated Parts Map

spare part number 2–1 installing

memory 4–14

processor 4–38

RIMMs 4–13 Voltage Regulator Module 4–40

jumper positions

drives 5–8

keyboard

cleaning 3–5

keyboard connector 1–3

LEDs

front panel 1–2 rear panel 1–3 system board 5–3 troubleshooting tables 5–3

mass storage devices

drive positions 4–20

memory

components 4–9 CRIMM 4–9 expansion board connector 5–2 installation 4–14 RIMM installation guidelines 4–12 RIMM slot locations 4–13 RIMM socket configurations 4–13

memory expansion board

removal and replacement 4–10

microphone

connector 1–2

mouse

cleaning 3–6

mouse connector 1–3

numbers, serial 1–5

P49 Jumper 5–6 parallel connector 1–3 passwords

clearing 5–6 disable 5–6

PCI expansion board

installing 4–27

Maintenance & Service Guide Index–2

removing 4–26 power connectors 1–3 power supply

air baffle

removal and replacement 4–29 fan 3–6 removal and replacement 4–30

Power-On Password

enable jumper 5–2

Power-On Password, clearing 5–6 preparation for disassembly 4–2 processor

fan connector 5–2 installing 4–38 primary socket location 5–2 recognizing second 4–38 removal and replacement 4–36 secondary socket location 5–2 separating from heatsink 4–35

processor fan

removal and replacement 4–43

, 5–2

rear fan

connector 5–2 removal and replacement 4–42

rear panel connectors 1–3 recognizing second processor 4–38 removable hard drive cage 1–4

installing a hard drive 4–33 removal and replacement 4–31

removal and replacement

access panel 4–5 air baffle 4–28 air plenum fan 4–46 battery 4–6 card guide 4–45 CD-ROM drive 4–23 cooling shield 4–19 diskette drive 4–24 drive bezel 4–17 DVD-ROM drive 4–23 EMI/cooling shield 4–19 expansion board 4–26 feet 4–4 front bezel 4–16

, 4–20

, 5–3

front I/O board and power switch assembly

4–18 hard drive 4–22 heatsink 4–36 hood sensor 4–7 memory expansion board 4–10 power supply 4–30 power supply air baffle 4–29 processor 4–36 processor fan 4–43 rear fan 4–42 removal hard drive cage 4–31 speaker 4–44

required tools and software 3–7 RIMM

installation 4–14 installation guidelines 4–12 removal 4–15 slot locations 4–13 socket configuration 4–13

, 4–32

screws

spare 4–21 using correct 3–7

SCSI

cable adapter A–1 chain termination A–2 connector 5–2 guidelines A–1 ID numbers A–1 multi-mode cable A–2

SCSISelect utility A–3 second processor recognition 4–38 separating heatsink from processor 4–35 serial

port connector 5–2

serial connector 1–3 serial numbers, location 1–5 service considerations 3–6 setup password, clearing 5–6 shipping bracket removal 4–8 SMART drive A–3 software

required 3–7

spare parts

Maintenance & Service Guide Index–3

location 2–1 spare screws 4–21 speaker

removal and replacement 4–44 speaker connector 5–2 specifications B–1 static electricity 3–2 System Board 4–41 system board

connectors and jumpers 5–1

troubleshooting LEDs 5–3

tools

required 3–7

Ultra 160 connector 1–3 universal serial bus (USB)

connector 1–2 universal serial bus (USB) connector 1–3 unlocking workstation 4–3

Video (monitor) connector 1–3 Voltage Regulator Module (VRM)

installing 4–40

location 5–2 installing 4–39

Maintenance & Service Guide Index–4

HP COMPAQ EVO W8000 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

ABOUT THIS GUIDE

Symbols and Conventions

Preface

Technician Notes

Locating Additional Information

Product Description

1.1 Product Features

1.1.1 Front Panel Controls and LEDs

1.1.2 Rear Panel Connectors

1.1.3 Drive Positions

1.2 Serial Number Location

Spare Parts

Removal & Replacement Preliminaries

3.1 Electrostatic Discharge Information

3.1.1 Generating Static

3.1.2 Preventing Electrostatic Damage to Equipment

3.1.3 Personal Grounding Methods and Equipment

3.1.4 Grounding the Work Area

3.1.5 Recommended Materials and Equipment

3.2 Routine Care

3.2.1 General Cleaning Safety Precautions

3.2.2 Cleaning the Chassis Exterior

3.2.3 Cleaning the Keyboard

3.2.4 Cleaning the Monitor

3.2.5 Cleaning the Mouse

3.3 Service Considerations

3.3.1 Power Supply Fan

3.3.2 Tools and Software Requirements

3.3.3 Screws

3.3.4 Cables and Connectors

3.3.5 Hard Drives

3.3.6 Lithium Coin Cell Battery

Removal & Replacement Procedures

4.1 Disassembly Sequence Chart

4.2 Preparation for Disassembly

4.3 Cable Lock

4.4 Workstation Feet

4.5 Access Panel

4.6 Battery

4.7 Hood Sensor

4.8 Shipping Bracket

4.9 Memory Components

4.9.1 Overview

4.9.2 Removing the Memory Expansion Board

4.9.3 RIMM Installation Guidelines

4.9.4 RIMM Slot Locations

4.9.5 RIMM Socket Configurations

4.9.6 Installing a Memory Device

4.10 Front Bezel

4.11 Blank Drive Bezel

4.12 Front I/O Board and Power Switch Assembly

4.13 EMI/Cooling Shield

4.14 Mass Storage Devices

4.14.1 Drive Positions

4.14.2 Spare Screws

4.14.3 Removing a Hard Drive from Bays 5 or 6

4.14.4 CD-ROM Drive

4.14.5 Diskette Drive

4.15 Expansion Boards

4.15.1 Removing an Expansion Board

4.15.2 Installing an Expansion Board

4.16 Air Baffles

4.16.1 Main Baffle

4.16.2 Power Supply Air Baffle

4.17 Power Supply

4.18 Removable Hard Drive Cage

4.18.1 Removing the Removable Hard Drive Cage

4.19 Heatsink and Processor

4.19.1 Separating the Heatsink-Processor Assembly

Heatsink Cool-Down Time

Heatsink Warm-Up Time

4.19.2 Removing the Heatsink and Processor

4.19.3 Installing an Additional Processor

Hardware Abstraction Layer

Additional Processor Installation