b
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 not be 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
Maintenance & Service Guide iii
Contents
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
iv Maintenance & Service Guide
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
Maintenance & Service Guide v
Contents
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
Index
Maintenance & Service Guide vi
Preface
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:
Å
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.
Ä
CAUTION: Text set off in this manner indicates that failure to follow directions could result
in damage to equipment or loss of data.
✎
Text set off in this manner presents commentary, sidelights, clarifying
information, or specific instructions.
vii Maintenance & Service Guide
Preface
Technician Notes
Å
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.
Å
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.
Ä
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
Maintenance & Service Guide 1–1
1
Product Description
This chapter describes the model offerings and features of the Compaq Evo
Workstation W8000.
1–2 Maintenance & Service Guide
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
1
CD-ROM headphone connector
8
Two Universal Serial Bus (USB)
connectors
2
CD-ROM volume
9
CD-ROM eject button
3
Diskette drive activity light
-
CD-ROM emergency eject opening
4
Power button
q
CD-ROM activity light
5
Hard drive activity light
w
Diskette drive eject button
6
Power-on light
e
Network link/activity light
7
Headphone connector
r
Microphone connector
Maintenance & Service Guide 1–3
Product Description
1.1.2 Rear Panel Connectors
Ref. Component/Function Ref. Component/Functions
1
Power cord connector
8
Serial connector B
2
Mouse connector
9
Parallel connector
3
Keyboard connector
:
Serial connector A
4
Ultra160 SCSI connector
q
Network Link/Activity LED
5
Two Universal Serial Bus (USB)
connectors
w
Ethernet connector
6
Line-out audio connector
e
Network Connection Speed LED
7
Line-in audio connector
r
Video (monitor) connector
1–4 Maintenance & Service Guide
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
1
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.
2
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.
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.
4
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.
5
Bay 5* 5.25-inch, half-height bay that supports 1.0-inch or 1.6-inch
storage devices.
6
Bay 6* 5.25-inch, half-height bay that supports 1.0-inch or 1.6-inch
storage devices.
7
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.
*An optional Zip drive can be installed in bay 5 or 6.
Maintenance & Service Guide 1–5
Product Description
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.
Maintenance & Service Guide 2–1
2
Spare Parts
Spare parts are listed and illustrated on the Illustrated Parts Map, spare part number
229782-001.
Maintenance & Service Guide 3–1
3
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.
Ä
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.
3–2 Maintenance & Service Guide
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.
✎
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.
Relative Humidity
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
*These are then multi-packaged inside plastic tubes, trays, or Styrofoam.
Maintenance & Service Guide 3–3
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. To provide 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.
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.
Static Shielding Protection Levels
Method Voltage
Antistatic plastic 1,500
Carbon-loaded plastic 7,500
Metallized laminate 15,000
3–4 Maintenance & Service Guide
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
Maintenance & Service Guide 3–5
Removal & Replacement Preliminaries
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.
■ 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:
Ä
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.
3–6 Maintenance & Service Guide
Removal & Replacement Preliminaries
Ä
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.
Ä
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.
Maintenance & Service Guide 3–7
Removal & Replacement Preliminaries
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.
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.
Ä
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.
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