Compaq AP500 User Manual

Professional Workstation AP500

Maintenance and Serv ice Guide

Second Edition (March 1999) Part Number 338534-002 Spares Part Number 338561- 001 Compaq Computer Corporation

Notice

The information in this publ ication is subject to change without notice. COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR

EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR

USE OF THIS MATERIAL. THIS INFORMATION IS PROVIDED “AS IS” AND COMPAQ COMPUTER CORPORATION DISCLAIMS ANY WARRANTIES, EXPRESS, IMPLIED OR STATUTORY AND EXPRESSLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, GOOD TITLE AND AGAINST INFRINGEMENT.

This publication contains i nf ormation protected by copyright. No par t of this publication may be photocopied or reproduced in any form without prior written consent from Compaq Computer Corporation.

The software described in this guide is f ur nished under a license agreement or nondisclosure agreement. The software may be used or copied only in accordance with the terms of the agreement.

Compaq, Compaq Insight Manager, ROMPaq, QVision, SmartStar t, NetFlex, QuickFind, PaqFax, registered United States Patent and Trademark Office.

Netelligent, SoftPaq, QuickBlank, QuickLock, and PowerStorm are trademarks and/or service marks of Compaq Computer Corporation.

Microsoft, MS-DOS, Windows, and Windows NT are registered trademarks of Microsoft Corporation. Other product names mentioned herein may be trademarks and/or registered trademarks of their respect ive

companies.

Compaq Professional Workstation AP500 Maintenance and Service Guide

Second Edition (March 1999) Part Number 338534-002 Spare Part Number 338561-001

Contents

About This Guide

Text Conventions.......................................................................................................................vii

Symbols in Text........................................................................................................................viii

Symbols on Equipment.............................................................................................................viii

Where to Go for Additional Help...............................................................................................ix

Other Information Sources..................................................................................................ix

Telephone Numbers.............................................................................................................ix

Chapter 1

Illustrated Parts Catalog

Mechanical Parts ......................................................................................................................1-1

System Components .................................................................................................................1-2

Spares Parts List.......................................................................................................................1-3

Chapter 2

Service Preliminaries

Compaq Technician Notes........................................................................................................2-1

Preliminary Warnings and Cautions.........................................................................................2-2

Electrostatic Discharge Information.........................................................................................2-3

Equipment Symbols..................................................................................................................2-3

Tools and Software Requirements............................................................................................2-4

Warranty Information...............................................................................................................2-4

iii

Chapter 3

Removal and Replacement Procedures

Serial Number...........................................................................................................................3-1

Service Preparations.................................................................................................................3-2

Cable Lock ...............................................................................................................................3-3

Workstation Feet.......................................................................................................................3-4

Side Access Panel.....................................................................................................................3-5

Front Bezel...............................................................................................................................3-6

Blank Drive Bezel....................................................................................................................3-7

EMI/Cooling Shield..................................................................................................................3-8

Speaker.....................................................................................................................................3-9

I/O Bracket Assembly ............................................................................................................3-10

Replacing the I/O Bracket Assembly...............................................................................3-11

Expansion Boards...................................................................................................................3-12

Identifying the PCI and ISA Expansion Slots..................................................................3-12

Removing a PCI or ISA Expansion Board......................................................................3-14

Removing a Symbios Wide Ultra2 PCI SCSI Controller ................................................3-15

Removing the Accelerated Graphics Port (AGP) Graphics Controller............................3-16

Removing the Card Guide...............................................................................................3-17

Removing the Backplane Board......................................................................................3-18

System Fan.............................................................................................................................3-19

Compaq Professional Workstation AP500 Maintenance and Service Guide

Removal and Replacement Procedures continued

Mass Storage Devices.............................................................................................................3-21

Drive Positions................................................................................................................3-21

Hardware Screws............................................................................................................. 3-23

CD-ROM Drive or DVD-ROM Drive.............................................................................3-24

Diskette Drive .................................................................................................................3-26

Removing a 7200 rpm Hard Drive from Bays 5 or 6.......................................................3-28

Removing a 10,000-rpm Hard Drive from Bays 5 or 6...................................................3-31

Removing the Fan from a Hard Drive Installed in Bays 5 or 6 ......................................3-35

Removing a Hard Drive from the Removable Hard Drive Cage.....................................3-37

Installing a Hard Drive in the Removable Hard Drive Cage...........................................3-39

SCSI Cables and Guidelines...................................................................................................3-41

SCSI Cables.....................................................................................................................3-41

SCSI Guidelines for Installing SCSI Devices..................................................................3-42

SCSI Guidelines for Optimizing Performance ................................................................3-42

System Board Assembly.........................................................................................................3-43

System Board with Tray and Cage..................................................................................3-43

System Board Components..............................................................................................3-45

Dual Inline Memory Modules (DIMMs).........................................................................3-46

Important Guidelines for DIMM Installation ..................................................................3-46

Removing a DIMM.........................................................................................................3-47

Processor and Heatsink Assembly..........................................................................................3-48

Processor Power Module.................................................................................................3-49

Primary Processor Power Module Cable Insulator..........................................................3-50

External Battery......................................................................................................................3-51

Running Computer Setup ................................................................................................3-51

Installing the Battery.......................................................................................................3-52

Power Switch Cable Assembly...............................................................................................3-54

Power Supply..........................................................................................................................3-55

Chapter 4

Diagnostic Tools

Power-On Self-Test (POST).....................................................................................................4-2

POST Messages........................................................................................................................4-3

Troubleshooting Minor Problems.............................................................................................4-7

Power Problems.................................................................................................................4-8

Diskette Drive Problems....................................................................................................4-9

Display Problems ............................................................................................................4-10

Printer Problems..............................................................................................................4-11

Hard Drive Problems.......................................................................................................4-12

Hardware Installation Problems ......................................................................................4-13

CD-ROM Drive and DVD-ROM Drive Problems ..........................................................4-14

Memory Problems...........................................................................................................4-15

SCSI Problems................................................................................................................4-15

Network Problems...........................................................................................................4-16

Audio Hardware Conflicts...............................................................................................4-18

Diagnostic Tools continued

Compaq Setup and Diagnostics Utilities.................................................................................4-19

Accessing the Compaq Utilities Menu............................................................................4-19

Creating a Diagnostics Diskette.......................................................................................4-20

Computer Setup...............................................................................................................4-21

Computer Checkup (TEST).............................................................................................4-23

View System Information (INSPECT)............................................................................4-24

Managing a Diagnostics Partition....................................................................................4-25

Diagnostic Error Codes...........................................................................................................4-25

Microprocessor................................................................................................................4-26

Memory...........................................................................................................................4-27

Keyboard.........................................................................................................................4-27

Printer.............................................................................................................................. 4-28

Diskette Drive .................................................................................................................4-28

Serial Port........................................................................................................................4-29

Modem ............................................................................................................................4-29

Pointing Device...............................................................................................................4-29

CD-ROM Drive (IDE).....................................................................................................4-30

Tape Drive.......................................................................................................................4-30

Video...............................................................................................................................4-31

Audio...............................................................................................................................4-33

Network Interface............................................................................................................4-33

SCSI Error Codes...................................................................................................................4-34

Upgrading the ROM...............................................................................................................4-37

Local ROM Upgrade.......................................................................................................4-37

Remote ROM Flash.........................................................................................................4-38

FailSafe Boot Block ROM......................................................................................................4-39

Compaq Insight Manager .......................................................................................................4-41

Compaq Workstation SSD for Windows NT ..........................................................................4- 42

Remote Capability...........................................................................................................4-42

Silent Setup Command Line Interface.............................................................................4-42

Compaq Diagnostics for Windows NT...................................................................................4-43

Chapter 5

System Security

Security Features......................................................................................................................5-1

Password Security.............................................................................................................5-2

Windows NT Workstation Password.................................................................................5-6

National Keyboard Delimiter Characters ..........................................................................5-6

Advanced Security Management..............................................................................................5-7

Re-enabling Diskette Boot or Diskette Write....................................................................5-7

Re-enabling a Serial Port or Parallel Port..........................................................................5-8

QuickLock/QuickBlank.....................................................................................................5-8

Cable Lock Provision........................................................................................................5-9

Compaq Professional Workstation AP500 Maintenance and Service Guide

Chapter 6

Jumper and Switch Information

Battery Jumpers........................................................................................................................6-2

Switch Settings.........................................................................................................................6-3

Hard Drives..............................................................................................................................6-4

32X Max CD-ROM Drive (IDE)..............................................................................................6-4

PowerStorm 300/AGP Graphics Controller..............................................................................6-5

Chapter 7

Physical and Operating Specifications

System Unit..............................................................................................................................7-2

325W Power Supply.................................................................................................................7-7

Diskette Drive...........................................................................................................................7-8

Zip Drive..................................................................................................................................7-9

CD-ROM Drive......................................................................................................................7-10

DVD-ROM Drive...................................................................................................................7-12

Hard Drives............................................................................................................................7-14

Audio System.........................................................................................................................7-19

Keyboard................................................................................................................................7-19

Mouse.....................................................................................................................................7-20

Graphics Controllers...............................................................................................................7-21

Network Controller.................................................................................................................7-25

RJ-45 Network Cable Specifications......................................................................................7-25

Chapter 8

External Connectors

Physical Location.....................................................................................................................8-1

Pin Assignments.......................................................................................................................8-3

Index

About This Guide

This guide is designed to be used as step-by-step instructions for installation, and as a reference for operation, troubleshooting, and future upgrades.

IMPORTANT: The installation of options and servicing of this product should be performed by individuals that are knowledgeable of the procedures, precautions, and hazards associated with equipment containing hazar dous energy circuits.

vii

WARNING: Only authorized technicians trained by Compaq should attempt to repair this equi pment. All troubleshooting and repair pr ocedures 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 make modifications to any printed wiring board. Improper repairs can create a safety hazard. Any indications of component replacement or printed wiring boa rd modifications may void any warranty.

WARNING: To reduce the risk of personal injury from electrical shock and hazardous energy levels, only authorized service technicians should attempt to repair this equi pment. Improper repairs could create conditions that are hazardous.

Text Conventions

This document uses the following conventions to distinguish e l ements of text:

Keys Keys appear in boldface. A plus sign (+) between two

keys indicates that they should be presse d simultaneously.

USER INPUT User input appears in a different typeface and in

uppercase. FILENAMES File names appear in upperca se italics. Menu Options,

Command Names, Dialog Box Names

COMMANDS, DIRECTORY NAMES, and DRIVE NAMES

Type When you are instructed to type information, type the

Enter When you are instructed to enter information, type the

These appear in initial capital letters.

These always appea r in uppercase.

information without pressing the Enter key.

information and then press the Ent e r key.

Compaq Professional Workstation AP500 Maintenance and Service Guide

viii

Symbols in Text

These symbols may be found in the te xt of this guide. They have the following meanings.

IMPORTANT: Presents clarifying information or specific instructions.

NOTE: Presents commentary, sidelights, or interesting points of information.

WARNING: Indicates that failure to follow directions in the warning could result in

bodily harm or loss of life.

CAUTION: Indicates that failure to follow directions could result in damage to equipment or loss of information.

Symbols on Equipment

These icons may be located on equipment in areas where hazardous conditions may exist.

Any surface or area of the equipment marked with these symbols indicates the presence of electrical shock hazards. Enclosed area contains no operator serviceable parts.

WARNING: To reduce risk of injury from electrical shock hazards, do not open this enclosure.

Any RJ-45 receptacle marked with these symbols indicates a Network Interface Connection.

WARNING: To reduce risk of electrical shock, fire, or damage to the equipment, do not plug telephone or telecommunications connectors into this receptacle.

Any surface or area of the equipment marked with these symbols indicates the presence of a hot surface or hot component. If this surface is contacted, the potential for injury exists.

WARNING: To reduce the risk of injury from a hot component, allow the surface to cool before touching.

Where to Go for Additional Help

Major sources of additional information are listed below.

Other Information Sources

In addition to this guide, the following information sources are available:

■ User Documentation

■ Compaq Service Quick Refere nce Guide

■ Service Training Guides

■ Compaq Service Advisories and Bulletins

■ Compaq QuickFind

■ Compaq Insight Manager

■ Compaq Download Facility: Call 1-281-518-1418.

Telephone Numbers

For the name of your nearest Compaq Authorized Reseller: In the United States, call 1-800-345-1518. In Canada, call 1-800- 263-5868. For Compaq technical support: In the United States and Canada, call 1-800-OK-COMPAQ (For continuous qua lity improvement,

calls may be recor ded or monitored.) For Compaq technical support phone num bers outside the United States and Canada, visit the

Compaq website at:

www.compaq.com

Compaq Professional Workstation AP500 Maintenance and Service Guide

Chapter 1

Illustrated Parts Catalog

This chapter provides an illustrated parts breakdo wn and a reference for spare parts for the Compaq Professional Workstation AP500.

Mechanical Parts

1-1

100

4 98

Figure 1-1. Exploded view of the Compaq Professional Workstation AP500 mechanical parts

Compaq Professional Workstation AP500 Maintenance and Service Guide

1-2 Illustrated Parts Catalog

19 20

44 45

System Components

Figure 1-2. Exploded view of the Compaq Professional Workstation AP500 system components

Spares Parts List

Parts or components marked with an asterisk (*) are not illustrated.

Reference Description Spares Part #

MECHANICAL

1 Side Access Panel 329263-001 2 Front Bezel 338549-001 3 I/O Bracket (Expansion Board Assembly) 338563-001 4 Blank Drive Bezel (part of the Miscellaneous Plastic Kit) 329265-001 5 Backplane Board 338513-001 6 Hood 338565-001 7 Removable Hard Drive Cage 338557-001

1-3

Table 1-1

Compaq Professional Workstation AP500

Spares Parts List

SYSTEM

8 Speaker 328730-001

9 EMI/Cooling Shield (part of the Miscellaneous Hardware Kit) 338559-001 10 Workstation Feet 329264-001 11 Chassis 338547-001

12 System Fan (fan bracket included in Miscellaneous Hardware Kit) 338558-001 13 Power Supply, 325W 328563-001 14 System Board with Tray 400-, 450-, 500-MHz 402124-001 15 System Board with Tray 400-, 450-MHz 338548-001* 16 Intel Pentium II Processor, 400/100 MHz, 512K with heatsink 327648-001 17 Intel Pentium II Processor, 450/100 MHz, 512K with heatsink 328785-001 18 Intel Pentium III Processor, 500/100 Mhz, 512K with heatsink 116402-001* 19 Processor Power Module (Voltage Regulator Module)

For 350/400/450/500 MHz CPU

20 Processor Power Module (Voltage Regulator Module)

For 350/400/450 MHz CPU

329267-001

327660-001

21 Lock Security Bracket 199109-001*

Compaq Professional Workstation AP500 Maintenance and Service Guide

Continued

1-4 Illustrated Parts Catalog

Compaq Professional Workstation AP500 Spares Parts List

Reference Description Spares Part #

22 External Battery 160274-001 23 Expansion Board Slot Cover 141081-001 24 Power Switch and LEDs with Cable 329270-001

MEMORY

25 32-MB Memory Module (Registered 100-MHz SDRAM) 317747-001* 26 64-MB Memory Module (Registered 100-MHz SDRAM) 317745-001 27 128-MB Memory Module (Registered 100-MHz SDRAM) 317756-001* 28 256-MB Memory Module (Registered 100-MHz SDRAM) 317749-001*

MASS STORAGE

29 4.3-GB Wide Ultra2 SCSI Hard Drive 7200 rpm 349533-001* 30 4.3-GB Wide Ultra2 SCSI Hard Drive 10,000 rpm 386538-001* 31 9.1-GB Wide Ultra2 SCSI Hard Drive 7200 rpm 349534-001* 32 9.1-GB Wide Ultra2 SCSI Hard Drive 10,000 rpm 386539-001

Continued

33 18-GB Wide Ultra2 SCSI Hard Drive 10,000 rpm 386540-001 34 4.3-GB Wide-Ultra SCSI Hard Drive, 7200 rpm 339514-001* 35 4.3-GB Wide-Ultra SCSI Hard Drive, 10,000 rpm 336383-001*

386539-001* 36 9.1-GB Wide-Ultra SCSI Hard Drive 7200 rpm 339515-001* 37 9.1-GB Wide-Ultra SCSI Hard Drive 10,000 rpm 336384-001* 38 18-GB Wide-Ultra SCSI Hard Drive 10,000 rpm 336385-001* 39 6.4-GB Ultra ATA Hard Drive 166973-001* 40 10-GB Ultra ATA Hard Drive, 7200 rpm 330520-001* 41 Symbios Wide Ultra2 PCI SCSI Controller 114009-001* 42 1.44-MB Diskette Drive 179161-001 43 100-MB Zip Drive 401624-001* 44 32X Max CD-ROM Drive (IDE) 327659-001 45 DVD-ROM Drive 105771-001 46 12/24-GB DAT Drive 340593-001*

Continued

1-5

Compaq Professional Workstation AP500 Spares Parts List

Reference Description Spares Part #

47 4/8-GB SLR Drive 340591-001* 48 Hard Drive Mounting Bracket (Bays 5 and 6) 243231-001* 49 Fan and Cable for >7200 rpm Hard Drives Installed in Bay 5 or 6 329266-001

CABLE KITS

50 Miscellaneous Signal Cable Kit (CD-ROM Drive, HD, Diskette, Audio) 327649-001 51 SCSI cable, wide 338546-001 52 Wide Ultra2 SCSI cable 402222-001 53 SCSI adapter, 50- to 68-Pin (internal) 189638-001*

KEYBOARD AND MOUSE

54 Keyboard 269513-001* 55 3-Button Mouse 327716-001*

MONITOR

56 P75 Monitor 307815-xxx*

Continued

57 V75 Monitor 307713-xxx* 58 V90 Color Monitor 305602-xxx* 59 P900 Color Monitor 303502-xxx* 60 P1610 Monitor 305710-xxx* 61 P110 Monitor 284959-xxx* 62 TFT 5000:

Opal, TS, NA, TC099 Carbon, TS, NA, TC099

63 TFT 8000:

Opal, no protective panel, TC095, WW Opal, with protective panel, TC095, WW Carbon, no protective panel, TC095, WW Carbon, with protective panel, TC095, WW

64 TFT 450:

Order TFT 450 spare part from the TFT 450 guide

115714-001* 115712-001*

307911-001* 102358-B24* 102359-B24* 102356-B24*

(PN 170431-001)*

65 TFT 500:

Order TFT 500 spare part from the TFT 500 guide

(PN 285012-001)*

Continued

Compaq Professional Workstation AP500 Maintenance and Service Guide

1-6 Illustrated Parts Catalog

Compaq Professional Workstation AP500 Spares Parts List

Reference Description Spares Part #

GRAPHICS

66 GLoria Synergy+ Graphics Controller 4-MB (AGP) 327599-001 67 GLoria Synergy+ 4-MB Memory Upgrade 327600-001* 68 GLoria Synergy+ 8 MB (PCI) Graphics Controller 298796-001* 69 PowerStorm 300 Graphics Controller (AGP) 338539-001* 70 Matrox Millennium G200 Graphics Controller 294409-001* 71 Matrox Millennium G200 8-MB Memory Upgrade 386047-001* 72 Matrox Productiva G100 Multi-Monitor Series Graphics Controller 101239-001*

CONTROLLERS

73 Compaq SMART-2SL Array Controller 242777-001* 74 Dual-Channel SCSI Controller 295626-001*

COMMUNICATIONS

75 Netelligent 16/4 TR PCI IBM UTP/STP Controller 301210-001*

Continued

76 Netelligent 16/4 TR PCI UTP/STP Controller 268010-001* 77 Netelligent 10 T/2 PCI UTP/Coax Controller 292857-001* 78 Netelligent 10 T/2 ISA UTP/Coax Controller 265618-001* 79 Netelligent 100 FDDI PCI SAS Fiber-SC 242506-002* 80 Netelligent 100 FDDI PCI DAS Fiber-UTP 242506-003* 81 Netelligent 100 FDDI PCI SAS Fiber-UTP 242506-004* 82 Netelligent 100 FDDI PCI SAS Fiber-MIC 242506-005* 83 Netelligent 56K PCI Fax Modem 321510-B21* 84 Netelligent 56K ISA Fax Modem 294912-001* 85 Compaq Fast Ethernet NIC NC3122 317453-001* 86 Compaq Fast Ethernet NIC NC3120 317606-001* 87 Compaq Ethernet NIC NC1120 317358-001 88 Compaq Fast Ethernet NIC NC3161 323556-001*

Continued

1-7

Compaq Professional Workstation AP500 Spares Parts List

Reference Description Spares Part #

SOFTWARE

89 Magellan Driver CD 297863-001* 90 Spaceball Driver CD 298033-001* 91 Microsoft Windows NT Workstation 4.0 CD 275573-xxx* 92 Compaq SmartStart for Workstations CD 275574-xx3/xx2(SP)* 93 Systems ROMPaq 275595-001* 94 Compaq Setup and Compaq Diagnostics for Workstations Diskette 275575-xxx*

MISCELLANEOUS

95 Magellan 3D Pointing Device (spacemouse) 297645-001* 96 Spaceball 3D Pointing Device 297644-001* 97 Compaq Multimedia Sound System (US) 294122-xxx* 98 Miscellaneous Plastic Kit (includes baffles*, card guide and

blank drive bezel)

99 Heatsink Bridge 327658-001*

Continued

329265-001

100 Miscellaneous Hardware Kit (includes EMI/Cooling Shield and System Fan

101 Rack Mounting Kit 338556-001* 102 Shipping Box with Buns (US) 329268-001* 103 Shipping Box with Buns (INTL) 329268-002* 104 SCSI Adapter, 68- to 50-Pin (external) 270229-001*

DOCUMENTATION

105 Maintenance and Service Guide 338561-001* 106 Illustrated Parts Map 338560-001* 107 Service Quick Reference Guide (revision -038 or later) 162212-001*

338559-001

Bracket)

Compaq Professional Workstation AP500 Maintenance and Service Guide

Chapter 2

Service Preliminaries

This chapter identifies the following service considerations:

■ Preliminary warnings and cautions

■ Electrostatic discharge information

■ Equipment symbols

■ Tools and software requirements

■ Warranty information

IMPORTANT: Adherence to the procedures and precautions described in this chapter is essential for proper service.

Compaq Technician Notes

WARNING: To reduce the risk of personal injury from electrical shock and

hazardous energy levels, do not exceed the level of repair specified in these procedures. Because of the complexity of the individual boards and subassemblies, do not attempt to make repairs at the component level or make modifications to a ny printed wiring board. Improper repairs could create conditions that are hazardous.

2-1

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

Disconnect power from the computer by unplugging the power cord from either the electrical outlet or the computer.

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

Plug the AC adapter or power cord into a grounded (earthed) elec trical outlet that is easily accessible at all times.

CAUTION: To properly ventilate the system, you must provide at least 6 inches (15 cm) of clearance at the front of the workstation and 3 inches (7.6 cm) at the back.

IMPORTANT: Any indication of repair at the component level or modification of a printed wiring board ma y void any warranty.

Compaq Professional Workstation AP500 Maintenance and Service Guide

2-2 Service Preliminaries

Preliminary Warnings and Cautions

The following should be noted when operating or servicing the Compaq Professional Workstation AP500:

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

■ Disconnect power from the system by unplugging all power cords

from either the electrical outlet or the Compaq Professional Workstation AP500.

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

an important safety feature.

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

is easily accessible at all times.

WARNING: To reduce the risk of personal injury from hazardous energy levels, only authorized service technicians should attempt to repair this equipment. Because of the complexity of the individua l 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.

CAUTION: The power supply in the Compaq Professional Workstation AP500 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: To properly ventilate the system, you must provide at least 6 inches (15 cm) of clearance at the front of the workstation and 3 inches (7.6 cm) at the back.

IMPORTANT: Any indications of component replacement or printed wiring board modifications may void any warranty.

Electrostatic Discharge Information

A discharge of static electricity can damage static-sensitive devices or micro-circuitry. Proper packaging and grounding techniques are necessary precautions to prevent damage. To prevent electrostatic damage, observe the following precautions:

■ Transport products in static-sa fe containers (conductive tube s, bags, or boxes).

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

■ Cover workstations with approved static-dissipating material. Provide a wrist strap

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

■ Keep work area free of non-conductive mater i als such as ordinary plastic assem bly a i ds

and foam packing.

■ Be sure you are always prope rly grounded when touching a static-sensitive component or

assembly.

■ Avoid touching pins, leads, or circuitry.

■ Always place drives PCB assembly-side down.

■ Use conductive field servic e tools.

2-3

Equipment Symbols

The following symbols are locat ed on applicable components of the worksta tion and should be observed when servicing the workstation to avoid personal injury or damage to the components:

WARNING: Any surface or area of the equipment marked with these symbols indicates the presence of a hot surface or hot component. If this surface is contacted, the potential for injury exists. To reduce risk of injury from a hot component, allow the surface to cool before touching.

WARNING: Any surface or area of the equipment marked with these symbols indicates the presence of electrical shock hazards. Enclosed area contains no operator serviceable parts. To reduce risk of injury from electrical shock hazards, do not open this enclosure.

WARNING: Any RJ-45 receptacle marked with these symbols indicates a Network Interface Connection. To reduce risk of electrical shock, fire, or damage to the equipment, do not plug telephone or telecommunications connectors into this receptacle.

Compaq Professional Workstation AP500 Maintenance and Service Guide

2-4 Service Preliminaries

Tools and Software Requirements

To service the workstation, you mi ght need:

■ Torx T-10 screwdriver

■ Torx T-15 screwdriver

■ Flat-blade screwdriver

■ Compaq Setup and Diagnostics Utility

IMPORTANT: Prior to servicing the workstation, be sure the drivers from the latest Compaq Workstation SSD for Windows NT are installed. See Chapter 4 for installation procedures.

Warranty Information

The following warranties come standard with the workstation:

■ Standard Warranty—a three-year limited warranty that cover s three years on parts, one

year on labor carry-in, and one year of onsite service

■ Pre-Failure Warranty—a special warranty that extends the Compaq three-year limited

warranty by applying it to critical system components before they fail. This warranty ensures that when you receive notification of a pre-failure condition through Compaq Insight Manager or the Windows NT Event Log, the component is replaced under warranty.

NOTE: For more information about Compaq Insight Manager, see Chapter 4.

The Pre-Failure War ranty covers the following workstation c omponents:

❏ SCSI hard drives ❏ Error Correcting Code (ECC) memory ❏ Pentium II processor ❏ Pentium III Processor

In addition to the above warrantie s, an optional Extended Warranty is available. If purchased,

this warranty extends the Standar d Warranty’s one year coverage for labor and onsite ser vic e for two additional years.

IMPORTANT: Observe all warnings and cautions provided herein. Failure to do so may void warranty for damaged components.

Chapter 3

Removal and Replacement Procedures

This chapter provides subassembly/module-level removal and replacement pr ocedures for the Compaq Professional Workstation AP500.

After completing all necessary removal and replacement procedures, run the Compaq Setup and Diagnostics program to veri fy that all components are oper ating properly.

Serial Number

Provide the computer serial number to Compaq whe never you request information or order spare parts. The serial number is located on the top right side of the workstation 1 and also on the rear of the chassis 2.

For asset control, the seria l number is also embedded in the EP RO M 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 POST. T o c l ear the condition, use Compaq Softpa q SP8410. It is located at: http://www.compaq.com/support/files/workstations/us/software/674.html.

3-1

NOTE: If a system board from another workstation is installed, POST recognizes the serial

number as a val id number.

Figure 3-1. Identifying serial number locations

Compaq Professional Workstation AP500 Maintenance and Service Guide

3-2 Removal and Replacement Procedures

Service Preparations

CAUTION: The power supply in the Compaq Professional Workstation AP500 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. Be sure you are properly grounded before beginning any install ation procedure. See

“Electrostatic Discharge Information” in Chapter 2 for more information.

Before beginning any of the removal and replacement procedures, complete the following steps:

1. Turn off the workstation.

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

3. Turn off all peripheral devices and disconnect cables f rom the rear of the wor ksta tion.

4. Remove the cable lock in order to access internal components. See the following section for instructions on how to remove the cable lock.

Cable Lock

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

To remove the lock:

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

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

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

3-3

Figure 3-2. Removing the padlock

NOTE: In some of the removal procedures in this chapter, you will be asked to remove the workstation feet and lay the workstation on its side when servicing some of the internal components.

NOTE: For more information on preparing the workstation for service, see Chapter 2.

Compaq Professional Workstation AP500 Maintenance and Service Guide

3-4 Removal and Replacement Procedures

Workstation Feet

NOTE: Not all procedures in this chapter require the removal of the workstation feet. Be sure to

thoroughly read each removal and replacement procedure before attempting to access the

workstation’s internal components.

To remove the workstation fe et:

1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.

2. Remove the screws that secure the feet.

3. Remove the feet.

Figure 3-3. Removing the workstation feet

4. To replace the feet, reverse the above procedure.

IMPORTANT: Compaq recommends that you perform certain removal and replacement procedures with the workstation laying on its side. Re fer to each procedure for instructions.

Side Access Panel

To remove the side access panel:

1. Perform the service preparations shown on page 3-2.

2. Loosen the four rear panel thumbscrews, then slide the side access off.

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

The panel is an integral part of the cooling system; removing it while the system is operating may adversely affect data integrity.

Figure 3-4. Loosening the thumbscrews and removing the side access panel

WARNING: To reduce the risk of personal injury from hot surfaces, allow the internal system components to cool before touching.

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

NOTE: The hood label attached to the inside of the side access panel provides system configurations and the installation of additional components.

To replace the side access panel:

1. Be sure all grounding clips and EMI gaskets (shielding strips) are in place.

2. Slide the side access panel in at an angle on one side, drop it into place, then slide it into the unit completely.

3. Tighten the rear panel thumbscrews.

Compaq Professional Workstation AP500 Maintenance and Service Guide

3-6 Removal and Replacement Procedures

Front Bezel

To remove the front bezel:

1. Perform the service preparations shown on page 3-2.

2. Remove the side access panel.

3. Push the front bezel release latches 1 and remove the bezel 2.

COMPACT

Figure 3-5. Removing the front bezel

To replace the front bezel:

1. Line up the hinges and release latches with the appropriate slots on the f ront of the chassis.

2. Press the bezel in to secure the release latches.

Blank Drive Bezel

To remove a blank drive bezel:

1. Perform the service preparations shown on page 3-2.

2. Remove the following components:

❏ Side access panel ❏ Front bezel

3. Remove the screws that secure the blank drive bezel to the front bezel.

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Figure 3-6. Removing a blank drive bezel

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

Compaq Professional Workstation AP500 Maintenance and Service Guide

3-8 Removal and Replacement Procedures

EMI/Cooling Shield

An EMI/cooling shield cover s bays 5 and 6 to provide proper cooling and EMI protection. To remove an EMI/cooling shield:

1. Perform the service preparations shown on page 3-2.

2. Remove the following components:

❏ Side access panel ❏ Front bezel

3. Remove the two screws that connect the EMI/cooling shield to the drive cage.

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

COMPACT

Figure 3-7. Removing the EMI/cooling shield

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

IMPORTANT: You must replace the shield after a hard drive is installed in the bay.

Speaker

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To remove the speaker:

1. Perform the service preparations shown on page 3-2.

2. Remove the side access panel.

3. Unplug the speaker connector from the system board 1, and remove the cable from the clip.

4. Remove the four T-15 screws securing the front of the speaker to the chassis 2.

5. Remove the speaker fr om the workstation by sliding it back, then lifting it up and out of the chassis 3.

Figure 3-8. Removing the speaker

To replace the speaker, reverse the above procedure.

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3-10 Removal and Replacement Procedures

I/O Bracket Assembly

The I/O bracket assembly (expansion board assembly) contains a backplane board (also ca lled a riser card), card guide, and any expansion boa rds. To remove the I/ O bracket assembly:

1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.

2. Remove the following components:

❏ Workstation feet ❏ Side access panel

CAUTION: The power supply in the Compaq Professional Workstation AP500 contains an auxiliary power section. Be sure the power switch is off and the unit is unplugged before rem oving the I/O bracket assembly in the next step.

3. Grasp the I/O bracket assembly and pull it out of the chassis.

Figure 3-9. Removing the I/O bracket assembly

IMPORTANT: After reconnecting the power cord to the grounded AC outlet and to the workstation, DO NOT turn the power button on if the Power LED is a steady amber color. A steady amber color indicates that the I/O bracket assembly is not seated properly. Disconnect the power cord and reseat the I/O bracket assembly.

Replacing the I/O Bracket Assembly

To replace the I/O bracket assembly (expansion board assembly), follow these steps:

1. Grasp the assembly and insert it into the chassis and connector on the system board. Press firmly on the I/O bracket assembly, where the backplane is connected to the system board.

2. Connect the power cord to the grounded AC outlet and to the workstation. DO NOT turn on the power switch.

3. Check if the power LED is a steady amber color. A steady amber color indicates the I/O bracket assembly, proc essor(s), or termina t or board (if installed) is not seated properly.

4. If the power LED is a steady amber color, disconnect the power cor d from the grounded AC outlet, reseat the I/O bracket assembly, processor(s), or terminator board (if installed), then reconnect the power cord.

5. Once the power LED is a steady green color, disconnect the power cord once again before continuing with additional service.

WARNING: DO NOT turn on the power switch unless the I/O bracket assembly, processor(s), and terminator board (if installed) are seated properly and the power LED is a steady green color. To reduce the risk of injury, DO NOT turn on the power until the workstation is completely reassembled.

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3-12 Removal and Replacement Procedures

Expansion Boards

This section discusses removal and replacement procedures for PCI or ISA expansion boards and the Accelerated Graphics Port (AGP) graphics controller.

NOTE: The following instructions also apply to installing and removing graphics controllers. For information about the installed graphics controller, refer to the appropriate guide on the SmartStart for Workstations CD under X:/DOCS/GRAPHICS, where X is the CD-ROM or DVD-ROM drive on your machine.

Identifying the PCI and ISA Expansion Slots

The Compaq Professional Workstation A P500 contains five expansion slots on the I/O br acket assembly: three PCI expansion slots, one shared PCI/ISA expansion slot, a nd one ISA expansion slot. The following illustration identifies the physical locations. See the corresponding table for component names.

Figure 3-10. Identifying the expansion slots

2 3

Table 3-1

PCI/ISA Slots

Reference Description

1 PCI/ISA shared expansion slot* 2 PCI expansion slot 3 PCI expansion slot 4 PCI expansion slot 5 ISA slot

*Cannot be used simultaneously

NOTE: PCI=Peripheral Component Interconnect ISA=Industry Standard Architecture

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3-14 Removal and Replacement Procedures

Removing a PCI or ISA Expansion Board

NOTE: The following instructions also apply to installing and removing graphics controllers. For

information about the installed graphics controller, refer to the appropriate guide on the SmartStart for Workstations CD under X:\DOCS\GRAPHICS, where X is the CD-ROM or DVD-ROM drive on your machine.

To remove a PCI or ISA expansion board:

1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.

2. Remove the following components:

❏ Workstation feet ❏ Side access panel ❏ I/O bracket assembly

3. Remove the retaining screw that holds the expansion board in place.

4. Move the tab 1 to release the board.

5. Hold the expansion board at each end and carefully rock it back and forth until the connectors pull free from the slot. Then lift the board from the slot 2.

Figure 3-11. Removing an expansion board

To install an expansion board:

1. Remove the expansion slot cover.

2. Press firmly on the expansion board so that the whole connector seats properly in the expansion board slot. If you are installing a full length expansion board, be sure to engage the card guide.

3. Replace the retaining screw.

CAUTION: If you permanently remove an expansion board, install a protective slot cover to ensure proper cooling.

Removing a Symbios Wide Ultra2 PCI SCSI Controller

NOTE: For best performance, do not mix Wide-Ultra and Wide Ultra2 SCSI hard drives on the

same SCSI cable or the same channel.

To remove a Wide Ultra2 SCSI Controlle r:

1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.

2. Remove the following components:

❏ Workstation feet ❏ Side access panel

3. Remove the I/O bracket assembly.

4. Disconnect the SCSI cable from the controller.

5. Remove the retaining screw that holds the controller in place.

6. Remove the controller.

To replace the controller, reverse the above procedure.

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3-16 Removal and Replacement Procedures

Removing the Accelerated Graphics Port (AGP) Graphics Controller

The Compaq Professional Workstation A P500 comes equipped with an AGP expansion slot on the system board. The following illustration identifies the physical location of the AGP graphics controller expansion slot.

NOTE: For information about the installed graphics controller, refer to the appropriate guide on the SmartStart for Workstations CD under X:\DOCS\GRAPHICS, where X is the CD-ROM or DVDROM drive designation.

To remove the AGP graphics controller:

1. Remove the retaining screw that holds the controller in place.

2. Hold the controller at each end, then pull up.

Figure 3-12. Removing an AGP graphics controller

To replace the controller, reverse the above procedure.

CAUTION: If you permanently remove an AGP graphics controller, install a protective slot cover to ensure proper cooling.

IMPORTANT: When replacing the AGP graphics controller, be sure to use AGP graphics controllers with ATX format brackets. This will ensure the controller fits properly.

IMPORTANT: When you install an AGP graphics controller, be sure to press firmly on the controller so that the whole connector seats properly in the AGP expansion slot.

Removing the Card Guide

To remove the card guide:

1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.

2. Remove the following components:

❏ Workstation feet ❏ Side access panel ❏ I/O bracket assembly ❏ Full-length expansion boards, if installed

3. Using a blunt tool, press inward on the two c enter tabs on the card guide.

4. Gently pull the card guide out.

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Figure 3-13. Removing the card guide

To replace the card guide, reverse the above procedure.

IMPORTANT: Before replacing the I/O bracket assembly, read “Important Guidelines for I/O Bracket Assembly Replacement” earlier in this chapter.

Compaq Professional Workstation AP500 Maintenance and Service Guide

3-18 Removal and Replacement Procedures

Removing the Backplane Board

The backplane board (also called the riser card) is attached to the I/O bracket assembly. The

backplane board contains the expansion slots described and shown in the “ Expansion Boards” section in this chapter.

To remove the backpla ne board:

1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.

2. Remove the following components:

❏ Workstation feet ❏ Side access panel ❏ I/O bracket assembly ❏ Expansion boards (if installed) ❏ Graphics controller (if installed)

3. Remove the four screws that secure the backplane board to the I/O bracket assembly.

4. Slide out then remove the backplane board from the I/O bracket assembly.

Figure 3-14. Removing the backplane board

To replace the backplane board, reverse the above procedure.

IMPORTANT: Before replacing the I/O bracket assembly, read “Important Guidelines for I/O Bracket Assembly Replacement” earlier in this chapter.

NOTE: When replacing the backplane board, align the top edge of the board with the slots in the I/O bracket assembly.

System Fan

To remove the system fan:

1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.

2. Remove the following components:

3. Disconnect the fan cable from the system board 1.

4. Remove the two screws at the top of the fan 2, then pull back and slide up 3.

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❏ Workstation feet ❏ Side access panel

NOTE: If the system board has not been removed, slide it out a few inches before removing the system fan.

Figure 3-15. Removing the system fan

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3-20 Removal and Replacement Procedures

5. Pull the rubber isolators through the br acket 1, then remove the fan from the bracket 2.

Figure 3-16. Removing the fan from the bracket

To replace the system fan, reverse the above procedure.

Mass Storage Devices

This section discusses removal and replacement procedures for the mass storage devices supported on the Compaq Professional Wor ksta tion AP500.

Drive Positions

The Compaq Professional Workstation A P500 can house up to seven mass storage devic es. All models ship with a CD-ROM drive installed in Bay 4 and a diskette drive installed in Bay 7. The following illustration identifies the physical drive loca tions. See the corresponding table for a description of the drive bay components.

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COMPACT

Figure 3-17. Identifying drive positions

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3-22 Removal and Replacement Procedures

Reference Component Description

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

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

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

4 Bay 4 A CD-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. An

6 Bay 6* 5.25-inch, half-height bay that supports 1.0-inch or 1.6-inch storage devices. An

Table 3-2

Drive Positions

1.0-inch hard drive or a 1.6-inch hard drive.

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

1.0-inch hard drive or a 1.6-inch hard drive.

optional hard drive, diskette drive, CD-ROM drive, DVD-ROM drive, or tape drive can be installed in Bay 5.

optional hard drive, diskette drive, CD-ROM drive, DVD-ROM drive, or tape drive can be installed in Bay 6.

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 additional Zip drive can be installed in these bays.

CAUTION: If a hard drive is installed in Bay 5 or 6 or if the bays are empty, be sure that EMI/cooling shields are installed to ensure proper air flow and cooling.

IMPORTANT: Compaq recommends 10,000 rpm hard drives be installed first in Bays 1, 2, or 3. Installing a 10,000 rpm hard drive in Bays 5 or 6 will require an additional cooling fan kit.

Hardware Screws

A total of 17 extra hardware screws are provided on the side of the air plenum. The top group of eight screws 1 is for installing hard dr ives in the removable hard drive cage. The bottom group of nine screws 2 is for installing removable media storage devices in the front drive bays.

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Figure 3-18. Locating the hardware screws

Compaq Professional Workstation AP500 Maintenance and Service Guide

3-24 Removal and Replacement Procedures

CD-ROM Drive or DVD-ROM Drive

To remove the CD-ROM drive or DVD-ROM drive:

1. Perform the service preparations shown on page 3-2.

2. Remove the following components:

❏ Side access panel ❏ Front bezel

3. Remove the retaining screws 1 and slide the drive 2 halfway out.

4. Disconnect the audio, data, and power cables 3 from the back of the drive.

COMPACT

Figure 3-19. Disconnecting the cables from the back of the CD-ROM drive or DVD-ROM drive

5. Pull the drive completely out of the drive cage.

Figure 3-20. Removing the CD-ROM drive or DVD-ROM drive

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COMPACT

To replace the drive, reverse the above procedure.

CAUTION: Use only 3/16-inch or 5 mm long screws. Using longer screws can damage the internal components of the drive.

CAUTION: When servicing the workstation, be sure cables are placed in their proper locations during the reassembly process. Improper cable placement can damage the computer.

IMPORTANT: Make sure you attach the middle connector of the data cable to the drive.

NOTE: 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.

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3-26 Removal and Replacement Procedures

Diskette Drive

IMPORTANT: Before removing the diskette drive, be sure there is no diskette in the drive.

To remove the diskette drive:

1. Perform the service preparations shown on page 3-2.

2. Remove the following components:

❏ Side access panel ❏ Front bezel

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

Figure 3-21. Disconnecting the cables from the back of the diskette drive

4. Remove the diskette drive retaining screws.

5. Pull the diskette drive straight out.

COMPACT

Figure 3-22. Removing the diskette drive

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To replace the diskette drive, reverse the above procedure.

CAUTION: Use only 3/16-inch or 5 mm long screws. Using longer screws can damage the internal components of the drive.

CAUTION: When servicing the workstation, be sure cables are placed in their proper locations during the reassembly process. Improper cable placement can damage the computer.

NOTE: 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.

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3-28 Removal and Replacement Procedures

Removing a 7200 rpm Hard Drive from Bays 5 or 6

Drive bays 5 and 6 can be configured with either a 1.0- inch or a 1.6-inch, 7200 rpm hard drive. Other than using different sc rew holes, the removal of both drives a basically the same.

To remove a 7200 rpm hard drive:

1. Perform the service preparations shown on page 3-2.

2. Remove the following components:

❏ Side access panel ❏ Front bezel

3. Disconnect the signal and power cables.

Figure 3-23. Disconnecting the cables from the hard drive

4. Remove the EMI/cooling shield.

Figure 3-24. Removing the EMI/cooling shield

5. Pull the hard drive straight out.

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COMPACT

Figure 3-25. Removing the hard drive

COMPACT

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3-30 Removal and Replacement Procedures

6. Remove the retaining screws and lift the hard drive from the bracket.

Figure 3-26. Removing a hard drive from the hard drive bracket

To reinsert a hard drive in Bays 5 or 6, revers e the above procedure.

CAUTION: Use only 3/16-inch or 5 mm long screws. Using longer screws can damage the internal components of the drive.

CAUTION: When servicing the workstation, be sure cables are placed in their proper locations during the reassembly process. Improper cable placement can damage the computer.

Removing a 10,000-rpm Hard Drive from Bays 5 or 6

Drive bays 5 and 6 can be configured with a 10,000 rpm hard drive. The remova l of the drive is basically the same as removing a 7200 rpm hard drive except you will be also be removing a cooling fan. :

To remove a 10,000-rpm hard drive:

1. Perform the service preparations shown on page 3-2.

2. Remove the following components:

❏ Side access panel ❏ Front bezel

3. Disconnect the signal and power cables.

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Figure 3-27. Disconnecting the cables from the hard drive

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3-32 Removal and Replacement Procedures

4. Disconnect the fan power cable.

Figure 3-28. Disconnecting the fan power cable

5. Remove the retaining scre w s securing the fan.

NOTE: The screws that secure the fan also secure the hard drive.

Figure 3-29. Removing the fan

6. Remove the EMI/cooling shield.

Figure 3-30. Removing the EMI/cooling shield

7. Pull the hard drive straight out.

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COMPACT

Figure 3-31. Removing the hard drive

COMPACT

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3-34 Removal and Replacement Procedures

8. Remove the retaining screws and lift the hard drive from the bracket.

Figure 3-32. Removing a hard drive from the hard drive bracket

To reinstall a hard drive in Bays 5 or 6, reverse the above procedure.

CAUTION: Use only 3/16-inch or 5 mm long screws. Using longer screws can damage the internal components of the drive.

CAUTION: When servicing the workstation, be sure cables are placed in their proper locations during the reassembly process. Improper cable placement can damage the computer.

Removing the Fan from a Hard Drive Installed in Bays 5 or 6

NOTE: This section only applies if there is a fan installed over Bays 5 and 6. The fan is required

only in high-altitude environments or when a hard drive faster than 7200 rpm is installed in Bay 5 or 6.

To remove the fan:

1. Perform the service preparations shown on page 3-2.

2. Remove the side access panel.

3. Disconnect the power cable.

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Figure 3-33. Disconnecting the power cable

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3-36 Removal and Replacement Procedures

4. Remove the screws that hold the fan in place and remove the fan.

NOTE: The screws also secure the hard drive in that bay and must be replaced. DO NOT remove the screws from the CD-ROM drive. They are not used to install the fan.

Figure 3-34. Removing the fan

To replace the fan, reverse the above procedure.

Removing a Hard Drive from the Removable Hard Drive Cage

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 basically the same.

To remove a hard drive in the removable har d drive cage:

1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.

2. Remove the following components:

❏ Workstation feet ❏ Side access panel

3. Disconnect the cables from the back of the hard drive(s).

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Figure 3-35. Disconnecting the cables from the back of a hard drive

Compaq Professional Workstation AP500 Maintenance and Service Guide

3-38 Removal and Replacement Procedures

4. Pull back the power supply air baffle 1.

5. Loosen the two thumbscrews 2 and slide the removable hard drive cage out 3.

Figure 3-36. Removing the removable hard drive cage

6. Remove the four screws that secure the hard drive to the removable hard drive cage and

pull the hard drive straight out.

Figure 3-37. Removing a hard drive

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.

Installing a Hard Drive in the Removable Hard Drive Cage

To install a hard drive in the removable hard drive cage:

1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.

2. Remove the following components:

❏ Workstation feet ❏ Side access panel ❏ Removable hard drive c age

3. Remove the hard drive sc rews (top group of screws) from the side of the air plenum located at the front of the workstation.

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Figure 3-38. Locating the removable hard drive screw holes

Table 3-3

Removable Hard Drive Screw Holes

Reference Bay

4 Bay 3: 1.0-inch drive 3 Bay 3: 1.6-inch drive 2 Bay 2: 1.0-inch drive 1 Bay 1: 1.0-inch drive

4. Insert the hard drive into the removable hard drive cage, and secure the drive with the four

hard drive screws. (Se e the above illustration and table for the location of the correct screw holes for the hard drive you ar e installing.)

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3-40 Removal and Replacement Procedures

Figure 3-39. Inserting a hard drive in the removable hard drive cage

Figure 3-40. Reinstalling a removable hard drive cage

5. Pull back the air baffle 1.

6. Slide the hard drive cage 2 into place.

7. Align the tabs 3 on the bottom of the cage with the workstation chassis.

8. Tighten the thumbscrews 4.

9. Connect the signal and power cable s to the hard drive.

10. Reassemble the workstation.

SCSI Cables and Guidelines

All workstation models use three areas for connecting mass storage SCSI devices: internally with hard drive in the removable hard drive cage, internally with storage devices in the front panel drive bays, and externa lly w ith external storage devices. The workstation has an integrated Wide-Ultra SCSI controller that has one internal connector on the system board and one external connector on the rear panel.

SCSI Cables

The workstation ships standard with a 5-de vice Wide-Ultra or Wide Ultra2 SCSI cable that has a terminator on one end. The other end of this cable connects to the internal Wide-Ultra SCSI connector on the system board. The first device connector of the cable connects to the hard drive in the removable hard drive cage. The cable has five connectors to handle up to five SCSI devices, a maximum of three in the rem ovable hard drive cage and two in the front drive bay area.

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Figure 3-41. 5-device Wide-Ultra SCSI cable

NOTE: The SCSI cable included with the workstation may look slightly different than the one pictured.

When installing a Wide Ultra2 SCSI hard drive a Wide U ltra2 SCSI cable (not shown) is required.

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3-42 Removal and Replacement Procedures

SCSI Guidelines for Installing SCSI Devices

■ If you are installing a narrow SCSI device, you will need to attach a 68- to 50-pin SCSI

adapter to the narrow SCSI device.

■ A maximum of seven SCSI devices may be installed on the integrated Wide-Ultra SCSI

controller.

■ A unique SCSI ID (0-6 and 8-15) must be set for each SCSI device installed.

■ Before you install a SCSI device, verify the SCSI ID of the drive, and if necessary, set the

SCSI ID to a unique ID number.

■ The controller identifies a SCSI device by its SCSI ID (SCSI ID 1) number rather than its

bay location (Bay 2). The refore, moving a SCSI device from one bay loca tion to another or changing the position of the device on the SCSI chain does not affect the communication between the c ontroller and the SCSI device.

■ The reserved and available SCSI ID numbers for SCSI devices are as follows: ❏ SCSI ID 0 is reserved for the primary hard drive (boota ble drive). ❏ SCSI ID 7 is reserved for the controller. ❏ SCSI IDs 1-6 and 8-15 are available. Do not use IDs 8-15 for narrow devices on the

same SCSI bus.

■ Bay 4 is reserved for the CD-ROM drive. Do not install a SCSI device in this bay.

■ If only one SCSI hard drive is used, it should be installed on the lowest numbered bay

(Bay 1).

■ Every SCSI chain must be ter minated (closed) at both ends.

■ SCSI devices may not have ter minating jumpers on the device. Determine if the device

ought to have termination enabled or disabled. Set the termination if necessary. Termination on these device s must be achieved with a non-terminated cable.

■ Turn on an external SCSI device before turning on power to the workstation. This enables

the system board controller to r ecognize the external SCSI devic e.

■ When an external SCSI device is connected to the external SCSI connector on the rear

panel of the workstation, that devic e becomes the end of the SCSI cha i n and must be terminated.

■ SCSI drives on the SCSI controller must be either internal or in an external storage

system, but not both.

SCSI Guidelines for Optimizing Performance

■ To maintain Ultra speeds, do not insta ll more than four SCSI devices on a SCSI bus.

■ Do not mix Wide-Ultra and nar row SCSI devices on the same SCSI chain or the same

controller.

For additional information about optional SCSI devices, refer to the doc umentation included with the device.

System Board Assembly

The system board assembly contains the DIMMs, Pentium II or Pentium III processor/heat sink, Processor Power Module( s), system board with tray, the AGP Graphics Controller, and the external battery, if installed. Each of these components is spa red separately. The com ponents on the system board are illustra ted in Figure 3-43. See Table 3-4 for component names.

CAUTION: Static electricity can damage the electronic components of the workstation. Before beginning these procedures, make sure you are properly

grounded. See “Electrostatic Discharge Information” in Chapter 2.

System Board with Tray and Cage

To remove the system board with tray and cage:

1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.

2. Remove the following components:

❏ Workstation feet ❏ Side access panel

3-43

❏ I/O bracket assembly

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

IMPORTANT: Be sure to disconnect the system fan and speaker connectors located at the front of the system board before removing the system board with tray and cage.

4. Grasp the back edge of the system board with tray and slide it out of the chassis.

Figure 3-42. Removing the system board with tray and cage

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3-44 Removal and Replacement Procedures

To install a new system board with tray and cage:

1. Remove the following components f rom the system board with tray:

❏ DIMMs ❏ Processor(s) ❏ Processor power module( s) ❏ External battery (if installed)

2. Install the components on the new system board with tr ay. Before reinstalling the

DIMMs, see “Important Guidelines for DIMM Installation” earlier in this chapter.

3. Slide the new system board with tray into the chassis.

4. Connect all cables to the system board.

5. Replace the I/O bracket assembly, the side access panel, and the workstation feet.

System Board Components

1 2 3 4 5 6 7 8 9

3-45

Figure 3-43. Identifying system board components

System Board Components

Reference Component

;

Power Switch Connector and LED Header Power Connector External Battery Jumper Diskette Drive Connector Secondary IDE Connector Primary IDE Connector SCSI Connector Primary Processor Power Module Secondary Processor Power Module Slot Secondary Processor Slot Primary Processor Fan Headers SW1 Switch Speaker Header DIMM Sockets 1- 4 AGP Graphics Controller Connector Wake-On-LAN Connector Expansion Board Connector

Table 3-4

Compaq Professional Workstation AP500 Maintenance and Service Guide

3-46 Removal and Replacement Procedures

Dual Inline Memory Modules (DIMMs)

The Compaq Professional Workstation A P500 has four DIMM slots on the system board to support up to a maximum of 1 GB. See the following illustration for the physical loc ation of the DIMM sockets.

DIMM 4 DIMM 3 DIMM 2 DIMM 1

Figure 3-44. Overview of DIMM sockets

NOTE: DIMMs do not need to be installed in pairs, and can be installed in any of the available DIMM sockets. The DIMM sockets are numbered in sequence from 1-4. DIMM 1 is located closest to the processor, and DIMM 4 is located closest to the edge of the system board.

Important Guidelines for DIMM Installation

When installing DIMMs, you MUST follow these guidelines:

■ Use only 32-, 64-, 128-, 256-MB Registered 100-MHz Error Checking and Correcting

(ECC) SDRAM DIMMs.

■ DIMMs must have a 4-KHz refresh rate.

■ DO NOT INSTALL DIMMS THAT DO NOT SUPPORT ERROR CHECKING

AND CORRECTING (ECC).

■ A DIMM can be installed one way only. Be sure to match the two key slots on the DI MM

with the tab on the DIMM socket. Push the DIMM down into the DIMM socket, ensuring that it is fully inserted and properly seated.

■ When upgrading, do not exceed 1 GB total. Upgrades exceeding 1 GB will cause the

system to halt.

Removing a DIMM

To remove a DIMM:

1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.

2. Remove the following components:

❏ Workstation feet ❏ Side access panel ❏ AGP graphics controller, if nec essary

3. Press outward on both latches of the D IMM at the same time 1. This releases the module and pushes it partially out of the socket.

3-47

CAUTION: When handling a DIMM, be careful not to to uch any of the contacts.

Doing so may damage the DIMM.

CAUTION: Static electricity can damage the electronic components of the workstation or optional boards. Before beginning these procedures, ensure that

you are properly grounded. See “Electrostatic Discharge Information” in Chapter 2.

4. Lift the module from the socket 2.

Figure 3-45. Removing a DIMM

To replace a DIMM, reverse the above procedure.

Compaq Professional Workstation AP500 Maintenance and Service Guide

3-48 Removal and Replacement Procedures

Processor and Heatsink Assembly

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

internal system components to cool before touching.

To remove the processor and heatsink assembly:

1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.

2. Remove the following components:

❏ Workstation feet ❏ Side access panel ❏ I/O bracket assembly

3. Push in the latches on each side of the processor until there are two clicks. This locks the tabs in the open position. Then slide out the processor.

Figure 3-46. Removing the processor and heatsink assembly

To replace the processor and heatsink, reverse the above procedure.

NOTE: Install the primary processor/heatsink assembly in the primary processor slot. Appearance may vary depending upon the pr ocessor.

When replacing the processor, push the processor tabs outward. The tabs will click twice, locking the processor to the system board.

Processor Power Module

CAUTION: Static electricity can damage the electronic components of the

workstation. Before beginning these procedures, make sure you are properly

grounded. See “Electrostatic Discharge Information” in Chapter 2.

The processor power module (voltage regulator module) is located on the system board. To remove the processor power module:

1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.

2. Remove the following components:

❏ Workstation feet ❏ Side access panel ❏ I/O bracket assembly

WARNING: To reduce the risk of personal injury from hot surfaces, allow the internal system components to cool before touching.

3. Press outward on both latches of the processor power module at the same time 1, then lift the module from the system board 2.

3-49

Figure 3-47. Removing the processor power module

To replace the processor power module, reverse the above procedure.

Compaq Professional Workstation AP500 Maintenance and Service Guide

3-50 Removal and Replacement Procedures

Primary Processor Power Module Cable Insulator

A cable insulator reduces da mage to cables routed over the pow er module. If you are replacing the primary processor module, you must first remove the cable insulator from the module and place it on the new power processor module.

To remove the cable insulator:

1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.

2. Remove the following components:

❏ Workstation feet ❏ Side access panel ❏ I/O bracket assembly ❏ Primary power proce ssor module

WARNING: To reduce the risk of personal injury from hot surfaces, allow the internal system components to cool before touching.

3. Remove the cable insulator from the primary processor power module.

Figure 3-48. Removing the cable insulator

To reinstall the cable insulator, reverse the above procedure.

NOTE: Make sure you firmly press the primary processor power module and cable insulator into the primary power module connector. Then, secure the two latches on the connector.

External Battery

The real-time clock battery that came with the workstation is permanently installed on the system board. If the original battery becomes inoperative, you must install a replacement battery. Before attempting to install the replacement battery, read the following section.

Running Computer Setup

Computer Setup automatically detects and configures most Compaq c omponents, including Compaq hard drives. If the workstation has a Compaq hard drive you do not need to run Computer Setup prior to installing the replacement battery. However, if the workstation has a third-party hard drive , you MUST complete the following steps before installing the replacement battery:

1. Run Computer Setup and record the drive type displayed in the System Configura tion Summary.

2. If the drive type number is 65 or 66, record the drive parameters.

Drives with these designators are user-defined types, also called soft-drive types.

Whenever the nonvolatile memory (CMOS) has be come invalid, such as after the installation of a new battery, drive parameters must be entered manually for these userdefined drives.

3-51

After you have completed the battery installation, run Computer Se tup and use the drive table parameters recorded earlier to reconfigure the system.

WARNING: The system board contains a clock/CMOS lithium battery. The lithium battery may explode if mistreated. The battery is soldered in and may not be removed. Do not abuse or disassemble. Use only replacement batteries supplied by Compaq Computer Corporation.

IMPORTANT: Make a set of backup diagnostics diskettes before installing a new battery.

NOTE: Drive parameters must be reentered after battery installation in order to reconfigure the

hard drive. The hard drive is inoperable until the parameters are reentered.

Compaq Professional Workstation AP500 Maintenance and Service Guide

3-52 Removal and Replacement Procedures

Installing the Battery

CAUTION: Static electricity can damage the electronic components of the

workstation. Before beginning these procedures, make sure you are properly

grounded. See “Electrostatic Discharge Information” in Chapter 2 for more information.

To install an external real-time clock battery:

1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.

2. Remove the following components:

❏ Workstation feet ❏ Side access panel ❏ I/O bracket assembly

3. Remove the backing from the adhesive on the hook-and-loop f astener strip and attach the battery near the J5 jumper.

4. Connect the battery connec t or to pins 1 - 4 on J5 1 and move the jumper from pins 6 and 7 to pins 5 and 6 2.

Figure 3-49. Installing the replacement battery

5. Replace the I/O bracket assembly and the side access panel.

6. Place the sticker included with your battery kit on the back of the workstation above the power connector.

7. Plug in the workstation and reconnect a ny external devices.

WARNING: This equipment is designed for connection to a grounded (earthed) outlet. The grounding type plug is an important safety feature. To avoid the risk of electrical shock or damage to the equipment, do not disable this feature.

8. Turn on the workstation.

9. Run computer setup to reconfigur e the system.

■ If the workstation has a Compaq hard drive, you have now successfully completed the

installation.

■ If the workstation has a thir d-party hard drive, you must reconfigure the har d drive using

the parameters recorded earlier.

3-53

Compaq Professional Workstation AP500 Maintenance and Service Guide

3-54 Removal and Replacement Procedures

Power Switch Cable Assembly

The power switch cable assembly can be replaced without removing the power supply. To remove the power switch cable assembly:

1. Perform the service preparations shown on page 3-2.

2. Remove the following components:

❏ Side access panel ❏ Front bezel ❏ CD-ROM drive or DVD-ROM drive (if installed)

3. Disconnect the power switch cable from the system board.

4. Remove the screws that keep the power switch cable assembly in place.

5. Remove the crown from the power switch cable assem bly.

6. Gently slide the cable through the CD-ROM drive bay opening.

7. Remove the power switch cable assembly from the chassis.

Figure 3-50. Removing the power switch cable assembly

To replace the power switch cable assembly, reverse the above procedure.

Power Supply

To remove the power supply:

1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.

3-55

WARNING: This procedure should be performed only by qualified personnel. Do

not reconnect power to the computer until the computer cover is replaced. Connecting the power before replacing the computer cover can result in personal injury or equipm ent damage.

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

■ If the system has multiple power supplies, disconnect power from

the system by unplugging all power cords from the power supplies.

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

an important safety feature.

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

is easily accessible at all times.

2. Remove the following components:

❏ Workstation feet ❏ Side access panel ❏ I/O bracket assembly ❏ Power supply air baffle

3. Disconnect all power cables.

NOTE: To facilitate reassembly, note the orientation of each cable connector and the routing of each cable before you remove it.

Compaq Professional Workstation AP500 Maintenance and Service Guide

3-56 Removal and Replacement Procedures

4. Remove the power supply air baffle from its position.

Figure 3-51. Removing the power supply air baffle

5. Remove the three scre w s that secure the power supply to the bac k of the chassis.

6. Slide the power supply toward the front of the chassis and pull up to remove it.

Figure 3-52. Removing the power supply

To replace the power supply, reverse the above procedure.

WARNING: Do not reconnect powe r to the computer until to computer cover is replaced. Connecting the power before replacing the computer cover can result in personal injur y or equipment damage.

Chapter 4

Diagnostic Tools

This chapter provides the following information to assist you when servicing the Compaq Professional Workstation AP500:

■ Power-On Self-Test (POST)

■ Compaq Utilities

■ Error Codes

■ ROMPaq

■ Compaq Insight Manager

■ Compaq Workstation SSD for Windows NT

■ Compaq Diagnostics for Windows NT

IMPORTANT: Adherence to the procedures and precautions described in this chapter is essential for proper service.

4-1

Compaq Professional Workstation AP500 Maintenance and Service Guide

4-2 Diagnostic Tools

Power-On Self-Test (POST)

POST is a series of diagnostic tests that run automatically when the system is turned on. After the computer is turned on, POST checks the following assemblies to make sure the computer system is functioning properly:

■ Keyboard

■ Memory

■ Graphics controller

■ Diskette drives

■ IDE CD-ROM drive

■ Hard drives

■ Processors

■ Controllers

POST also detects the type of SCSI mass storage devices installed in the workstation.

NOTE: If the Power-On Password is set, a key icon (

) displays on the screen while POST is running. You will need to enter the password before continuing. See Chapter 5 for information on deleting or bypassing the Power-On Password.

If POST finds an error in the system, an audible and/or visual message occurs. For explanations of the error codes and a recommended course of action, see Table 4-1 in the next section.

POST Messages

An error message results if POST encounters a problem. This test runs when the system is turned on, checking assemblies within the workstation and reporting any errors detected.

Message Beeps* Probable Cause Recommended Action

101-ROM Error 1L, 1S System ROM checksum Replace the system board.

4-3

Table 4-1

POST Messages

101-Option ROM Checksum Error

102-System Board Failure None DMA, timers, and so on. Replace the Expansion Cage System

162-System Options Error 2S No diskette drive or mismatch in

162-System Options Not Set 2S Configuration incorrect Run Computer Setup or Windows NT

163-Time & Date Not Set 2S Invalid time or date in

164-Memory Size Error 2S Memory configuration incorrect Run Computer Setup or Windows NT

172-1 Configuration Nonvolatile Memory Invalid

201-Memory Error None RAM failure 1. Run Computer Setup or Windows NT

1L, 1S Option ROM checksum 1. Verify the correct system ROM.

2. Flash the system ROM to the latest revision, if required.

3. Contact Compaq technical support.

Board. Run the Computer Setup utility. Run Computer Setup or Windows NT

drive type

configuration memory

None NVRAM configuration error Allow system to completely boot.

utilities.

utilities. Run Computer Setup or Windows NT

utilities.

Reboot.

utilities.

2. Replace the DIMMs.

202-Memory Type Mismatch

203-Memory Address Error None RAM failure 1. Run Computer Setup or Windows NT

205-Memory Error None Cache memory error Run the Computer Checkup or

None Invalid memory configuration 1. Run Computer Setup or Windows NT

utilities.

2. Replace the DIMMs.

utilities.

2. Replace the DIMMS.

3. Replace the system board.

Diagnostics utilities.

Continued

Compaq Professional Workstation AP500 Maintenance and Service Guide

4-4 Diagnostic Tools

POST Messages

Continued

Message Beeps* Probable Cause Recommended Action

206-Secondary cache controller failure

207-ECC Corrected Single Bit Errors in DIMM Pair(s)

None Cache memory controller or

RAM failure

2S A memory error on one of the

installed DIMMs has been

Run the Computer Checkup and Diagnostics utilities.

Run Diagnostics to get more information.

detected and corrected with the

system’s ECC logic. The workstation will continue to operate correctly with this error.

210-Invalid Memory Configuration Detected.

None Too much memory installed in

system

Remove DIMM from socket.

Maximum of 1 Gbytes of Memory Supported. System Halted

212-Failed Processor 1L Failed processor (X is 0 or 1) Replace the processor and/or the

Processor Power Module.

301-Keyboard Error None Keyboard failure Verify that you do not have a key stuck

or something on the keyboard. Ensure that the keyboard is plugged in. Replace the keyboard.

303-Keyboard Controller Error

None I/O keyboard controller 1. Reconnect keyboard with computer

turned off.

2. Replace the system board.

304-Keyboard or System Unit Error

40X-Parallel Port X Address Assignment Conflict

402-Monochrome Adapter Failure

404-Parallel Port Address Conflict Detected

None Keyboard failure 1. Replace the keyboard.

2. Replace the system board.

2S Both external and internal ports

are assigned to parallel port X.

Run Computer Setup or Windows NT utilities.

1L, 2S Monochrome display controller Replace the monochrome display

controller.

2S Both external and internal ports

are assigned to parallel port X.

Run Computer Setup or Windows NT

utilities. 501-Display Adapter Failure 1L, 2S Graphics display controller Replace the graphics controller. 601-Diskette Controller Error None Diskette controller circuitry 1. Run Computer Setup.

2. Check and/or replace cables.

3. Replace diskette drive.

4. Replace the system board.

Continued

4-5

POST Messages

Continued

Message Beeps* Probable Cause Recommended Action

605-Diskette Drive Type Error

611-Primary Floppy Port Address Assignment Conflict

1151-System Board COM Port 1 Address Assignment Conflict

1152-System Board COM Port 2 Address Assignment Conflict

1155-COM Port Address Assignment Conflict

1610-Temperature Violation Detected

2S Mismatch in drive type Run Computer Setup or Windows NT

utilities.

2S Configuration error Run Computer Setup or Windows NT

utilities.

2S Both external and internal serial

ports are assigned to COM1

2S Both external and internal serial

ports are assigned to COM2

Run Computer Setup or Windows NT utilities.

2S COM port address conflict Run Computer Setup or Windows NT

utilities.

None The system is too hot. Turn off the workstation and let it cool off.

If the condition persists, run Diagnostics to get more information.

1611-Fan Failure Detected None The fan is not operating properly. Run Diagnostics to get more information.

Replace the fan.

1720-IntelliSafe Hard Drive

None IDE hard drive(s) Back up contents and replace hard drive.

Detects Imminent Failure 1720-SMART Hard Drive

None SCSI hard drive(s) Back up contents and replace hard drive.

Detects Imminent Failure 1771-Primary Disk Port

Address Assignment Conflict

2S Internal and external IDE hard

drive controllers are both

Run Computer Setup or Windows NT utilities.

assigned to the primary address.

1772-Secondary Disk Port

2S IDE Configuration Run Computer Setup.

Address Assignment Conflict 1780-Disk 0 Failure None IDE hard drive failure Run Computer Setup. 1781-Disk 1 Failure None IDE hard drive failure Run Computer Setup. 1782-Disk Controller Failure None IDE configuration failure Run Computer Setup. 1790-Disk 0 Failure

None IDE hard drive failure Run Computer Setup.

(Secondary) 1791-Disk 1 Failure

None IDE hard drive failure Run Computer Setup.

(Secondary) 1792-Secondary Disk

None IDE circuitry failure Run Computer Setup.

Controller Failure

Continued

Compaq Professional Workstation AP500 Maintenance and Service Guide

4-6 Diagnostic Tools

POST Messages

Message Beeps* Probable Cause Recommended Action

1793-Secondary Controller or Disk Failure

A Critical Error Occurred Before this Power-Up.

Fixed Disk Parameter Table or BIOS Error System Halted

XX000Y ZZ Parity Check 2 None Parity RAM failure Run Computer Setup. Audible (beep) None Power-on successful None Invalid Electronic

Serial Number Audible 2S Power-on successful None (RESUME = F1 KEY) None As indicated to continue Press F1. * L = Long, S = Short

Continued

None An error has been detected

with the CD-ROM interface.

None Critical failure (POST) recorded

into the wellness log.

3L Configuration or hardware

failure

None Electronic serial number has

become corrupted.

Run Computer Setup.

None

Run Computer Setup.

Troubleshooting Minor Problems

If minor hardware or software problems occur, refer to the following list for possible solutions before running any of the dia gnostic utilities.

■ Verify that the workstation is connected to a working grounded AC outlet.

■ Is the workstation turned on and the power light illuminated?

■ Check all cable connections. Be sure the connectors are seated properly.

■ Is the monitor turned on and the power light illuminated?

■ If the monitor is dim, turn up the brightness and contrast controls on the monitor.

■ After the system has started, press the Num Lock key repeatedly. If the Num Lock light

toggles on and off, the keyboard is OK.

■ Are all of the necessary device drivers installed?

■ Have all printer drivers been installed for each application?

■ Was a nonbootable diskette loaded in the diskette drive at powerup?

■ Was a bootable compact disc in the CD-ROM drive at powerup?

■ Check all switch and jumper settings.

4-7

■ Was Computer Setup run after installing options (memory, disk drives, expansion boards,

for example) and industry-standard architecture (ISA) boards?

In addition to the above checklist, see the next few sections for other possible solutions to :

■ Power Problems

■ Diskette Drive Problems

■ Display Problems

■ Printer Problems

■ Hard Drive Problems

■ Hardware Installation Problems

■ IDE CD-ROM and DVD-ROM Drive Problems

■ Memory Problems

■ SCSI Problems

■ Network Problems

■ Audio Hardware Conflicts

Compaq Professional Workstation AP500 Maintenance and Service Guide

4-8 Diagnostic Tools

Power Problems

This section identifies some quick checks for power-related problems.

Problem Possible Solution

Computer will not turn on. Be sure the workstation is connected to a working grounded AC outlet.

System will not boot. If the LED is a steady amber color, reseat the I/O bracket assembly (expansion board

Table 4-2

Solutions for Power Problems

Be sure the processor(s) and terminator board are properly seated. Check to see if cables to the external power source are unplugged. Be sure cables

connecting the workstation and the external source are plugged in properly. Be sure

cables from the workstation’s power supply are properly plugged in to the system board. A PCI or ISA card that has been installed is not seated properly or is defective. Be sure that

the card is fully inserted, or remove the PCI or ISA card that was just installed.

assembly).

Computer does not automatically display the date and time.

Computer powered off automatically.

The real-time clock (RTC) battery may need to be replaced.

The maximum safe unit temperature may have been exceeded. Turn off the unit and allow it to cool.

ACPI may be the cause. Unplug the unit from AC power and wait 10 seconds. Plug unit back in and restore power.

Diskette Drive Problems

This section identifies some quick checks for diskette drive-related problems.

Problem Possible Solution

Diskette drive light stays on. 1. Diskette might be damaged. Run CHKDSK on the diskette.

4-9

Table 4-3

Solutions for Diskette Drive Problems

2. Diskette could be installed incorrectly. Remove the diskette and reinsert.

3. Software program may be damaged. Check the program diskettes.

4. Diskette not fully inserted. Eject and try inserting again.

5. Drive cable is not properly connected. Reconnect drive cable.

Diskette drive cannot write to a diskette.

Diskette drive cannot read a diskette.

A problem has occurred with a disk transaction.

Non-system disk message Remove the diskette from the drive. Drive not found. Check the cables for loose connections.

1. Diskette is not formatted. Format the diskette.

2. Diskette is write-protected. Either use another diskette that is not write-protected or disable the write protection on the diskette.

3. Writing to the wrong drive. Check the drive letter in the path statement.

4. Not enough space is left on the diskette. Use another diskette to write the information.

5. Diskette write control is disabled. Check the security feature settings.

1. Diskette is not formatted. Format the diskette.

2. Using the wrong diskette type for the drive type. Use a diskette that is compatible with the drive.

3. Reading the wrong drive. Check the drive letter in the path statement.

4. Diskette drive has been disabled. Run Computer Setup and enable the diskette drive.

The directory structure is bad or there is a problem with a file. Run Disk Administrator. At the Start menu, highlight

Programs

and select

Administrator Tools

Compaq Professional Workstation AP500 Maintenance and Service Guide

4-10 Diagnostic Tools

Display Problems

This section identifies some quick checks for display-related problems.

Problem Possible Solution

Screen is blank. 1. Monitor is not turned on and the monitor light is not on. Turn on the monitor and

Table 4-4

Solutions for Display Problems

verify the monitor light is on.

2. Screen save has been initiated. Press any key or move the mouse to light the screen. Wait a few seconds for the screen to be active.

3. Check the cable connection from the monitor to the workstation and check the grounded AC outlet.

4. The brightness needs adjusting. Adjust the brightness control.

5. The QuickBlank feature has been enabled through Security Management. Run Computer Setup and disable the QuickBlank feature.

6. The energy saver feature has been enabled. Press any key or type the password. Wait a few seconds for the screen to become active.

7. The RGB (Red, Green, Blue) input switch on the back of the monitor is incorrectly set. Set the monitor’s input switch to 75 ohms. If there is a sync switch, set it to External.

8. If a fixed-sync monitor is used, be sure the monitor can accept the same sweep rate as the resolution chosen.

9. Verify the graphics adapter is fully and properly inserted in the PCI or AGP slot.

Graphics colors are wrong. 1. If the BNC cable is used, make sure that the Red, Green, and Blue BNC cables are

connected to the corresponding monitor connectors.

2. Be sure the monitor’s RGB inputs are set to 75 ohms.

Characters are dim. 1. Adjust the monitor’s brightness and contrast controls.

2. Verify the video cable is securely connected to the video card and monitor.

3. Set the RGB switch (and sync options, if available) to 75 ohms, with the sync set to External. Refer to the documentation included with the monitor.

Monitor does not function properly when used with the energy saver features.

Blurry display or requested resolution cannot be set.

A monitor without the energy saver feature is being used with energy saver features enabled. Disable the monitor energy saver feature.

If the graphics controller was upgraded, the correct display drivers may not be loaded. Install the correct display drivers on the diskette included in the upgrade kit.

Continued

4-11

Solutions for Display Problems

Problem Possible Solution

The picture is broken up; it rolls, jitters, or blinks.

Screen goes blank. A screen blanking utility may be installed or energy saver features are enabled. Press

Monitor overheats. There is not enough ventilation space for proper airflow. Leave at least 3 inches (7.6

Cursor will not move using the arrow keys on the numeric keypad.

Printer Problems

This section identifies some quick checks for printer-related problems.

Continued

1. Be sure the monitor cable is securely connected to the computer.

2. In a 2-monitor system or if another monitor is in close proximity, the monitors may interfere with each other’s magnetic field. Move them farther apart.

any key or type password. Wait a few seconds for the screen to become active.

cm) of ventilation space. Also, be sure there is nothing on top of the monitor to obstruct air flow.

The Num Lock key is on. Press the Num Lock key. The Num Lock light should not be on when you want to use the arrow keys.

Table 4-5

Solutions for Printer Problems

Problem Possible Solution

Printer will not print. 1. Printer is not turned on and online. Turn the printer on and make sure it is online.

2. The correct printer drivers for the application are not installed. Install the correct printer drivers for the application.

3. If the workstation is on a network, you may not have made the connection to the printer. Make the proper network connections to the printer.

Printer will not turn on. The cables may not be connected properly. Reconnect all cables and check the power

cord and electrical outlet.

Prints garbled information. 1. The correct printer drivers for the application are not installed. Install the correct printer

driver for the application.

2. The cables may not be connected properly. Reconnect all cables.

Printer is off-line. The printer may be out of paper. Check the paper tray and refill it if it is empty. Select

online.

Compaq Professional Workstation AP500 Maintenance and Service Guide

4-12 Diagnostic Tools

Hard Drive Problems

This section identifies some quick checks for hard drive-related problems. The information provided by the diagnostics test includes error code, system serial number,

drive serial number, drive model, and drive firmware revision. Specific details of the drive failure are not included.

When you run the diagnostics, the test results are stored in a log. After completing the test, you can print this log to a local printer or save it to a file. Alternatively, before running the test, you can configure the test options to send the results to a local printer or file.

Solutions for some typical hard drive problems are presented in the following table.

Problem Possible Solution

Hard drive error occurs Hard disk has bad sectors or has failed. Use a utility to locate and block usage of bad

Disk transaction problem Either the directory structure is bad or there is a problem with a file.

Table 4-6

Solutions for Hard Drive Problems

sectors. If necessary, reformat the hard disk.

When using Windows NT, run Disk Administrator. At the Start menu, highlight and select

Drive not found 1. Cable could be loose. Check cable connections.

2. Check SCSI IDs to be sure they are not duplicated.

Nonsystem disk message 1. The system is trying to start from a diskette that is not bootable. Remove the diskette

2. The system is trying to start from the hard drive but the hard disk has been damaged.

3. Diskette boot has been disabled in Computer Setup. Run Computer Setup and enable

Administrator Tools

from the diskette drive.

Insert a bootable diskette into the diskette drive and restart the workstation.

diskette boot.

Programs

Hardware Installation Problems

This section identifies some quick checks for hardware-related installation problems.

Problem Possible Solution

4-13

Table 4-7

Solutions for Hardware Installation Problems

A new device is not recognized as part of the computer system.

1. The Computer Setup utility has not been run to configure the new device. Run the Computer Setup utility.

2. When the system advised you of changes to the configuration, you did not accept them. Reboot the workstation and follow the instructions for accepting the changes.

3. The system may not have automatically recognized the new device. Run Computer Setup and identify the new device.

4. A Plug-and-Play board may not automatically configure when added if the default configuration conflicts with other devices. Use Computer Setup to deselect the

automatic settings for the board and choose a basic configuration that doesn’t cause a resource conflict.

5. The cables for the new external device are loose or the power cables are unplugged. Check all cables.

6. The power switch for the new external device is not turned on. Turn off the workstation, turn on the external device. Then turn on the workstation to integrate the new device.

7. If the drive is a secondary drive that has just been installed on the same controller as the primary drive, verify that the jumpers for both drives are set correctly.

Compaq Professional Workstation AP500 Maintenance and Service Guide

4-14 Diagnostic Tools

CD-ROM Drive and DVD-ROM Drive Problems

This section identifies some quick checks for IDE CD-ROM and DVD-ROM drive-related problems.

Solutions for CD-ROM and DVD-ROM Drive Problems

Problem Possible Solution

Cannot read compact disc 1. CD is not properly seated in the drive. Eject the CD, correctly seat it in the drive, then

reload.

2. CD has been loaded upside down. Eject the CD, turn it over, then reload.

Table 4-8

System will not boot from CD-ROM drive

Cannot eject compact disc CD is not properly seated in the drive. Turn off the workstation, insert a thin metal rod (a

CD-ROM device is not detected; driver is not loaded

1. The CD-ROM boot is not enabled through the Computer Setup utility. Run the Computer Setup utility and set the drive priorities.

2. Be sure that drive cabling and jumpers are set correctly.

straightened paper clip can be used) into the emergency eject hole, and push firmly. Slowly pull the tray out from the drive until the tray is fully extended, then remove the CD.

CD-ROM drive is not connected properly. Open the workstation. Verify the drive cable is connected properly.

Memory Problems

This section identifies some quick checks for memory-related problems.

Problem Possible Solution

Out of Memory error 1. Run Computer Setup or Windows NT utilities.

4-15

Table 4-9

Solutions for Memory Problems

2. The workstation has insufficient memory to run the application. Check the application documentation to determine the memory requirements.

Memory count during POST is wrong

Out of memory error during operation

SCSI Problems

Some common causes and solutions for SCSI device problems are listed in the following table.

Problem Possible Solution

System will not boot from a SCSI drive.

The DIMMs may not be installed correctly. Verify that the DIMMs have been installed correctly in the DIMM sockets, then run the Setup utility.

The system has insufficient memory for the application. Check the memory requirements for the application or install additional memory.

Table 4-10

Solutions for SCSI Problems

Be sure that drive cabling and jumpers are set correctly. To boot to a SCSI drive, the drive with the lowest SCSI number will be the boot drive. No two drives can have the same SCSI number. See Figures 6-3, 6-4, and 6-5 for instructions on selecting SCSI ID.

Compaq Professional Workstation AP500 Maintenance and Service Guide

4-16 Diagnostic Tools

Network Problems

This section provides some common causes and solutions for network problems. However, the process of debugging network cabling is not discussed.

Problem Cause Solution

Table 4-11

Solutions for Network Problems

System does not detect a network controller.

System Setup utility reports unprogrammed EPROM.

Diagnostics reports a failure.

1. Possible driver problem

2. Possible failed network controller

1. The network controller is defective.

2. Network drivers are not loaded.

1. The cable is not securely connected.

2. The cable is attached to the incorrect connector.

3. There is a problem with the cable or a device at the other end of the cable.

4. The network controller is defective.

5. Network controller interrupt or memory overlaps the interrupt or memory of an expansion board.

1.Load latest version of Compaq Workstation SSD for Windows NT.

2.Replace the system board.

1.Replace the controller or the system board.

2.Boot the workstation without the network drivers. Using a system boot diskette, reconfigure the network controller.

1. Be sure the cable is securely attached to the network

connector and the other end of the cable is securely attached to the correct device.

2. Be sure the cable is attached to the correct connector.

3. Be sure the cable and device at the other end are

operating correctly.

4. Replace the controller or the system board.

5. Run Computer Setup and modify the network controller

memory value.

Diagnostics passes, but the system does not communicate with the network.

1. Network drivers are not loaded, or driver parameters do not match current configuration.

2. The network controller is not configured for the workstation.

3. The network controller interrupt or memory overlaps the interrupt or memory of an expansion board.

1. Be sure the network drivers are loaded and the driver parameters match the configuration of the network controller.

2. Select the Network icon at the Control Panel. Reconfigure the driver if necessary, using the Network Setup found in the Control Center.

3. Run Computer Setup and modify the network controller memory value.

Continued

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Solutions for Network Problems

Continued

Problem Cause Solution

Network controller stopped working when an expansion board was installed.

1. Network drivers are not loaded or driver parameters do not match the current configuration.

2. The cable is not securely connected.

3. The network controller interrupt or memory overlaps the interrupt or memory of another expansion board.

4. The network controller requires drivers.

5. The files containing the

1. Be sure the network drivers are loaded and the driver parameters match the configuration of the network controller, using Network Setup found in the Control Center.

2. Be sure the cable is securely attached to the network connector and the other end of the cable is securely attached to the correct device.

3. Run Computer Setup and modify the network controller memory value.

4. Verify that the drivers were not accidentally deleted when the drivers for a new expansion board were installed.

5. Reinstall the network drivers using the SmartStart for Workstations CD, then run Computer Setup.

network drivers are corrupted.

Network controller stopped working without apparent cause.

1. The files containing the network drivers are corrupted.

2. The cable is not securely connected.

1. Reinstall the network drivers using the SmartStart for Workstations CD, then run Computer Setup.

2. Make sure the cable is securely attached to the network connector and the other end of the cable is securely attached to the correct device.

3. The network controller is defective.

3. Replace the network controller or the system board.

Compaq Professional Workstation AP500 Maintenance and Service Guide

4-18 Diagnostic Tools

Audio Hardware Conflicts

This section provides solutions to hardware conflicts. Hardware conflicts occur when two or more peripheral devices contend for the same signal lines or channels. Conflicts between the audio interface and another peripheral device may be because of the settings of the base I/O addresses, interrupts, or DMA channels. The audio interface typically has the following settings:

■ Base I/O address 220H

■ OPL III I/O address 388-38Bh

■ Interrupt IRQ 5

■ 8-bit DMA Channel 1 and Channel 0 or 3

To resolve hardware conflicts:

1. Change the hardware settings of the audio card or the peripheral card in your system if the

peripheral card is using the audio interface setting.

2. If you are unsure of the settings of the peripheral cards, you can isolate the source of the

problem by temporarily removing all cards. After that, add the cards back one at a time until the card that is causing the conflict is found.

Compaq Setup and Diagnostics Utilities

The Compaq Professional Workstation AP500 provides setup and diagnostic utilities that you

can use to configure the workstation’s hardware, resolve resource conflicts, run diagnostic tests, and view information about the workstation. This software includes Compaq Utilities that are preinstalled on a hard drive partition and ROM BIOS (Read Only Memory Basic Input/Output System). The Compaq Utilities menu consists of the following choices:

■ Create a Diagnostics Diskette

■ Computer Setup

■ Computer Checkup (TEST)

■ View System Information (INSPECT)

■ Manage Diagnostics Partition

Explanations and procedures for each utility are included later in this chapter. Compaq Utilities should be run in the following instances:

■ When a system configuration error is detected during the Power-on Self-Test (POST).

■ To change the factory default settings for some of the workstation features.

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■ To change the system configuratio n, which is sometimes necessary upon adding or

removing optional hard ware .

■ To set system configuration features.

Accessing the Compaq Utilities Menu

IMPORTANT: If you have reformatted the hard drive and removed the hard drive partition

that contains the Compaq Utilities, you can reinstall it by using the Compaq SmartStart for Workstations CD, or you can download Setup and User Diagnostics from the Compaq website at www.compaq.com.

To access the Compaq Utilities menu:

1. Turn on or restart the workstation. If Windows NT is running, click Start, Shut Down,

Restart the computer.

2. When you see the words F10=Setup in the bottom-right corner of the screen, press F10.

NOTE: If yo u do not press the F10 key while the message is displayed, you must turn off the workstation, then on again, to access the utility.

3. When prompted, select the desired language.

4. Press Enter to bypass the title and welcome screens. The Compaq Utilities menu displays.

Compaq Professional Workstation AP500 Maintenance and Service Guide

4-20 Diagnostic Tools

Creating a Diagnostics Diskette

This option allows you to create Setup or Diagnostics diskettes from the diagnostics partition. To create these diskettes:

1. Access the Compaq Utilities menu.

2. From the Compaq Utilities menu, select Create a Diagnostics Diskette.

One Diagnostic and two Setup diskettes will be created.

NOTE: The Diagnostics and Setup diskettes can also be cre ated by downloading the latest version from the Compaq website at www.compaq.com.

To access TEST or INSPECT:

1. Insert the Diagnostic diskette into drive A.

2. Turn on or restart the workstation. If Windows NT is running, click Start, Shut Down,

Restart the computer.

3. Press

Enter

to bypass the Welcome to Compaq Utilities screen.

NOTE: Procedures for running each Compaq Utilities menu option (Computer Setup, TEST, INSPECT) are included later in this chapter.

Computer Setup

Computer Setup allows you to configure the workstation’s hardware and resolve resource conflicts.

Using Computer Setup

To use Computer Setup, select Computer Setup from the Compaq Utilities menu. The following table describes the features available in Computer Setup.

4-21

Table 4-12

Computer Setup Features

Task Computer Setup Selection

View the product name, processor type/speed/stepping, CPU serial number, system ROM date, system board revision, installed memory size, and asset tracking number.

Set the system time and date. Click

Click

Date/Time.

Set the Asset Tag. Click

System Parameters,

Set the POST mode (Quick Boot or Full Boot) and enable/disable POST messages.

Click the appropriate options under

Messages Descriptive/Clean Mode.

Set ISA back-to-back I/O (fast/legacy) delay and bus priority (ISA/PCI).

View the currently installed drive A: (preinstalled diskette drive) and drive B: devices and set resources for diskette drives.

Enable/disable diskette booting and diskette writing. NOTE: After saving changes to Removable Media, the

workstation will restart. Turn the workstation off, then on, manually.

Click

System Parameters,

Click displayed under

Click appropriate option under

Built-in Devices,

Diskette.

Built-in Devices,

then click

enter the new

then click

System Information.

Asset Tag.

System Information.

Quick Boot

then click

select the appropriate

then click

System Information.

Storage.

Removable Media.

Click

Under

Select

and

POST

Under

I/O Delay.

The information is

Select the

View information regarding IDE devices connected to the system.

NOTE: ATAPI devices (CD-ROM, tape) are listed as ATAPI devices.

Enable/disable serial and parallel port and/or set resources for onboard system devices (serial port, parallel port, and so on).

Click

Built-in Devices,

displayed under

Click

Built-in Devices,

appropriate options under

Compaq Professional Workstation AP500 Maintenance and Service Guide

then click

IDE Devices.

then click

Serial Ports

Storage.

The information is

Communications.

Parallel Port.

Select the

Continued

4-22 Diagnostic Tools

Computer Setup Features

Set the printer mode (flexible/standard). Click

Continued

Task Computer Setup Selection

Parallel Port,

Set the Num Lock state at power-on. Click

Keyboard,

Disable energy saver mode. Click

Energy Saver Disabled.

Select timeout values. NOTE: These selections appear only the when energy

saver mode is set (default). Enable/disable power LED blink in suspend mode NOTE: This selection does not appear if the energy saver

mode is disabled. Enable the Power-On Password. Click

Enable/disable keyboard QuickLock, QuickBlank screen when locked, and QuickLock in energy saver mode.

Click

Hard Drive

Click

Blink LED during Energy Saver.

Under Click

Under

Built-in Devices,

select the appropriate

Built-in Devices,

turn on

Built-in Devices,

and/or

Built-in Devices,

then click

Num Lock State At Power-on.

then click

Monitor

then click

Power-On Password,

Built-in Devices,

then click

Power-On Password,

Communications.

Under

Bi-directional Port.

Input Devices.

Under

Power Management.

, select the

Timeout

value.

Power Management.

Security Management.

click

Set.

Security Management.

select the appropriate options.

Select

Under

Select

NOTE: These selections appear only if a Power-On Password is set.

Enable the Setup (administrator) Password. Click

Under

View current settings of Plug and Play (PnP) devices and set resources for installed boards.

View the currently installed PCI devices and view and/or reconfigure settings (IRQ, I/O, DMA, memory).

Enable/disable the SCSI controller boot order for Compaq SCSI options.

Enable/disable PCI bus mastering, PCI VGA palette snooping, and interrupt sharing.

Restore factory default settings and exit Computer Setup. Select Exit Computer Setup without applying or saving any

changes. Save changes to the system configuration and exit

Computer Setup.

Click

Click Under

Select

Built-in Devices,

Setup Password,

then click

Security Management.

select

Enable Setup Password.

Integrated and Add-in Devices,

SCSI Controller Boot Order,

select

Integrated and Add-in Devices,

System Options, File,

then select

File,

then select

File,

then select

select the appropriate options.

Set Defaults and Exit. Exit Without Saving Changes.

Save Changes and Exit.

then click

ISA Boards.

PCI Boards.

Enable Boot Order.

then click

PCI Boards.

Computer Checkup (TEST)

Computer Checkup (TEST), the primary diagnostics utility, confirms whether the various workstation devices are recognized by the system and are functioning properly. Use the TEST utility to help set up tests, to test the workstation, and to install the operating system.

The TEST option, which may vary by product, checks the following:

■ Processors

■ Keyboard

■ Pointing device interface

■ Parallel interface

■ Graphic controllers

■ Diskette drives

■ Fixed disk drives

■ Serial interfaces

■ Installed Compaq devices (tape drive, SCSI device, or network controller)

4-23

To run TEST:

1. Turn on only the external devices that you wa nt to test. You may want to leave the printer

connected to log error messages.

2. Access the Compaq Utilities menu.

3. Select Computer Checkup (TEST).

4. Select the option to view the device list. After a few minutes, a list of installed hardware

devices is displayed.

5. Verify that the TEST utility correctly detected the devices installed. If the list is correct,

select OK. The test option menu is displayed again. If the list is incorrect, be sure that any new devices are installed properly.

NOTE: This utility may not detect non-Compaq devices.

Compaq Professional Workstation AP500 Maintenance and Service Guide

4-24 Diagnostic Tools

6. Select one of the following from the test option menu:

■ Quick Check Diagnostics runs a quick, general test on each device with a minimum

■ Automatic Diagnostics runs unattended and provides maximum testing of each

■ Prompted Diagnostics allows maximum control over the device testing process.

IMPORTANT: When you run the TEST utility, be sure to record any error message numbers.

7. Follow the instructions on the screen as the diagnostic tests are run on the devices. When

the testing is complete, the test option menu is displayed again.

8. Exit to the Compaq Utilities menu.

number of prompts. If errors occur, they are displayed when the test is complete.

device with minimum prompts. You can choose how many times to run the tests, to stop on errors, or to print or file an error log.

You can choose attended or unattended testing, stop o n errors, or print or file an error log.

CAUTION: If attended testing is selected, the test itself may result in data loss.

View System Information (INSPECT)

The View System Information (INSPECT) utility provides information about the system after it has been configured, including:

■ Contents of the operating system startup files

■ Current memory configuration

■ ROM versions

■ Type of processor and coprocessor

■ Diskette, CD-ROM, DVD-ROM, tape, and hard drives installed

■ Active printer and communications interfaces

■ Modem

■ Graphics

Compaq AP500 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual