Compaq DESKPRO 1000 User Manual

MAINTENANCE & SERVICE GUIDE

Compaq Deskpro 1000 Series of Personal Computers

Notice

The information in this guide 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 guide contains information protected by copyright. No part of this guide may be photocopied or reproduced in any form without prior written consent from Compaq Computer Corporation.



1998 Compaq Computer Corporation.

All rights reserved. Printed in the U.S.A. Compaq and Deskpro are registered in the U. S. Patent and Trademark Office. Microsoft, MS-DOS, Windows, Windows NT, and other names of Microsoft products referenced herein are

trademarks or registered trademarks of Microsoft Corporation.

Intel and Pentium are registered trademarks of Intel Corporation. MMX is a trademark of Intel Corporation.

Product names mentioned herein may be trademarks and/or registered trademarks of their respective companies.

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

Maintenance & Service Guide

Compaq Deskpro 1000 Series of Personal Computers

First Edition (January 1998) Part Number 333806-001 Spare Part Number 333835-001

Compaq Computer Corporation

CPS

ONTENTS

preface

Symbols and Conventions.........................................................................................................vii

Technician Note........................................................................................................................viii

System Serial Number..............................................................................................................viii

Locating Additional Information..............................................................................................viii

chapter 1

Product Description

1.1 Compaq Deskpro 1000 Series of Personal Computer Models ...........................................1-2

1.2 Features...............................................................................................................................1-3

1.3 System Design....................................................................................................................1-4

1.3.1 Design Overview .......................................................................................................1-4

1.4 Preloaded Software.............................................................................................................1-5

1.5 Computer Features..............................................................................................................1-5

1.5.1 Front Panel Controls and LEDs.................................................................................1-5

1.5.2 Drive Positions...........................................................................................................1-6

1.5.3 Rear Panel Connectors...............................................................................................1-7

1.6 Enhanced Keyboard............................................................................................................1-8

chapter 2

Troubleshooting

2.1 Power-On Self Test (POST)...............................................................................................2-1

2.1.1 POST Error Messages................................................................................................2-1

2.2 CMOS Setup Utility ...........................................................................................................2-4

2.2.1 Preparing the Computer.............................................................................................2-5

2.2.2 Clearing the Password ...............................................................................................2-5

2.3 Troubleshooting Without Diagnostics................................................................................2-5

2.3.1 Checklist for Solving Minor Problems......................................................................2-5

2.3.2 Power Problems.........................................................................................................2-6

2.3.3 Diskette Drive Problems............................................................................................2-7

2.3.4 Display Problems.......................................................................................................2-8

2.3.5 Printer Problems ........................................................................................................2-9

2.3.6 Hard Drive Problems ...............................................................................................2-10

2.3.7 Hardware Installation Problems...............................................................................2-11

2.3.8 CD-ROM Drive Problems .......................................................................................2-12

2.3.9 Memory Problems....................................................................................................2-12

chapter 3

Illustrated Parts Catalog

3.1 System Unit ........................................................................................................................3-2

3.2 Mass Storage Devices.........................................................................................................3-3

3.3 Cables.................................................................................................................................3-4

3.4 Standard and Optional Boards............................................................................................3-5

3.5 Keyboards...........................................................................................................................3-6

3.6 Miscellaneous Hardware Kit ..............................................................................................3-7

3.7 Miscellaneous Plastics Kit..................................................................................................3-8

Contents iii

3.8 Miscellaneous Parts............................................................................................................3-9

3.9 Shipping Boxes...................................................................................................................3-9

3.10 Documentation .................................................................................................................3-9

chapter 4

Removal and Replacement Preliminaries

4.1 Electrostatic Discharge Information...................................................................................4-1

4.1.1 Generating Static........................................................................................................4-1

4.1.2 Preventing Electrostatic Damage to Equipment ........................................................4-2

4.1.3 Personal Grounding Methods ....................................................................................4-2

4.1.4 Grounding Workstations............................................................................................4-3

4.1.5 Personal Grounding Equipment.................................................................................4-3

4.1.6 Recommended Materials and Equipment..................................................................4-4

4.2 Service Considerations.......................................................................................................4-4

4.2.1 Tools and Software Requirements.............................................................................4-4

4.2.2 Screws........................................................................................................................4-5

4.2.3 Cables and Connectors...............................................................................................4-5

4.2.4 Hard Drives................................................................................................................4-5

4.2.5 Plastic Parts................................................................................................................4-5

4.2.6 Lithium Battery..........................................................................................................4-5

chapter 5

Removal and Replacement Procedures

5.1 Serial Number.....................................................................................................................5-1

5.2 Disassembly/Assembly Sequence ......................................................................................5-2

5.3 Feet.....................................................................................................................................5-3

5.4 Preparation for Disassembly...............................................................................................5-3

5.5 System Unit Cover .............................................................................................................5-4

5.6 Expansion Board ................................................................................................................5-4

5.7 Expansion Board Guide......................................................................................................5-6

5.8 System Board......................................................................................................................5-7

5.9 Graphics Memory...............................................................................................................5-8

5.10 Memory Modules .............................................................................................................5-9

5.10.1 Installing a SIMM Module ....................................................................................5-11

5.10.2 Installing a DIMM Module....................................................................................5-12

5.11 Power Supply..................................................................................................................5-13

5.12 Microprocessor...............................................................................................................5-14

5.12.1 Passive Heat Sink (P55C/166)...............................................................................5-14

5.12.2 Active Heat Sink (P55C/200) ................................................................................5-16

5.13 Front Bezel Assembly ....................................................................................................5-18

5.14 LED Retainer Assembly.................................................................................................5-19

5.15 LED Cables ....................................................................................................................5-20

5.16 Power Button..................................................................................................................5-21

5.17 Bezel Blank ....................................................................................................................5-22

5.18 Replacement Battery.......................................................................................................5-23

5.19 Mass Storage Devices.....................................................................................................5-24

5.19.1 Drive Positions.......................................................................................................5-24

5.19.2 Drive Cage.............................................................................................................5-25

5.19.3 3.5-Inch Drive........................................................................................................5-26

5.19.4 5.25-Inch Drive......................................................................................................5-27

iv Contents

chapter 6

Jumper Information

6.1 System Board Jumpers .......................................................................................................6-1

6.1.1 Power-On Password Jumpers (CPW)........................................................................6-3

6.1.2 Flash EPROM Type Selection (EP)...........................................................................6-4

6.1.3 CPU External Clock (Bus) Frequency (CLK) ...........................................................6-4

6.1.4 CPU to SRAM Data Transacting Mode Selection (SRAM)......................................6-5

6.1.5 Jumper Settings..........................................................................................................6-5

6.1.6 Clearing Configuration ..............................................................................................6-5

6.1.7 Changing the Real-Time Clock (RTC) Battery .........................................................6-5

6.2 Hard Drives ........................................................................................................................6-6

6.2.1 1.6-GB IDE Hard Drive Jumper Settings..................................................................6-6

chapter 7

Utilities

7.1 CMOS Setup Utility ...........................................................................................................7-1

7.1.1 Using the CMOS Setup Utility..................................................................................7-1

7.1.1.1 Safeguarding CMOS Settings...........................................................................7-1

7.1.1.2 Restoring CMOS Settings.................................................................................7-1

7.1.2 Important CMOS Settings .........................................................................................7-1

7.1.2.1 Standard CMOS Setup......................................................................................7-1

7.1.2.2 BIOS Features Setup.........................................................................................7-2

7.1.3 Passwords...................................................................................................................7-2

7.1.3.1 Establishing a Password....................................................................................7-2

7.1.3.2 Entering a Password..........................................................................................7-2

7.1.3.3 Disabling a Password........................................................................................7-2

7.1.3.4 Changing a Password........................................................................................7-3

7.1.3.5 Clearing a Password..........................................................................................7-3

7.1.4 IDE HDD Auto Detection..........................................................................................7-3

7.1.5 Save and Exit Setup...................................................................................................7-3

7.1.6 Exit Without Saving...................................................................................................7-4

7.2 Upgrading the BIOS...........................................................................................................7-4

7.3 Configuring Windows Display and Monitor......................................................................7-4

7.3.1 Supported Resolutions...............................................................................................7-5

7.3.2 Changing Monitor Type Manually in Windows 95..................................................7-5

7.3.3 Setting Graphics Resolution ......................................................................................7-5

7.3.4 Establishing a Password in Windows 95...................................................................7-5

7.4 Diagnostics Software..........................................................................................................7-5

chapter 8

Specifications

8.1 System ................................................................................................................................8-1

8.2 Drives .................................................................................................................................8-5

8.3 Mouse.................................................................................................................................8-7

8.4 Keyboard ............................................................................................................................8-7

8.5 Supported Graphics Resolutions ........................................................................................8-8

appendix A

Connector Pin Assignments

.........................................................................................................

A-1

Contents v

appendix B

Power Cord Set Requirements

General Requirements .............................................................................................................B-1

Country-Specific Requirements ..............................................................................................B-2

appendix C

Hard Drives

Device 0/Device 1 Relationship.........................................................................................C-1

Cable Select .......................................................................................................................C-1

IntelliSafe - SMART.......................................................................................................... C-1

Automatic Soft-Drive Types.............................................................................................. C-2

vi Contents

preface

Maintenance & Service Guide

This servicing the Compaq Deskpro 1000 Series of Personal Computers.

Compaq Computer Corporation reserves the right to make changes to the Compaq Deskpro 1000 Series of Personal Computers without notice.

Symbols and Conventions

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

is a troubleshooting guide that can be used for reference when

CAUTION:

equipment or loss of data.

WARNING:

result in bodily harm or loss of life.

✎

The following format conventions distinguish elements of the text throughout this guide:



Text set off in this manner presents clarifying information, specific instructions, commentary, sidelights, or other points of information.

Drive letters that are not in command lines are presented in uppercase type as shown here: drive A.

Directory names that are not in command lines are presented in uppercase type as shown here: DIRECTORY.

The file names are presented in uppercase italic type as shown here: The names of commands are presented in lowercase as shown here: install, or a:\install. Commands that are to be entered at the system prompt may be shown on a separate line. When you need to type information without pressing

information. When you need to type information

information.

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

Text set off in this manner indicates that failure to follow directions in the warning could

and

press

FILENAME

Enter

, you are directed to "type" the

Enter

, you are directed to "enter" the

Compaq 1000 Series of Personal Computers vii

Technician Note

WARNING:

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

CAUTION:

clearance on the front and back of the computer.

WARNING:

AC power cord into a properly grounded electrical outlet only.

Only authorized technicians trained by Compaq should attempt to repair this equipment. All

To properly ventilate the computer system, you must provide at least 3-inches (7.62-cm) of

The computer is designed to be electrically grounded. To ensure proper operation, plug the

System Serial Number

The serial number is displayed on the right side of the cover on the right front corner, and above the expansion board area on the rear of the computer.

Locating Additional Information

The following documentation is available to support the computer:



Compaq Reference Guide



Compaq QuickFind, a subscription reference service



Compaq Safety & Comfort Guide



Compaq Service Advisories and Bulletins



Compaq Service Quick Reference Guide



Compaq Technical Reference Guide



Illustrated Parts Map (poster)



Technical Training Guides

viii Preface

chapter

RODUCT DESCRIPTION

This chapter describes the model offerings and features of the Compaq Deskpro 1000 Series of Personal Computers.

Figure 1-1.

Compaq Deskpro 1000 Series of Personal Computers

Compaq Deskpro 1000 Series of Personal Computers 1-1

1.1 Compaq Deskpro 1000 Series of Personal Computer Models

The Compaq Deskpro 1000 Series of Personal Computers is available in desktop configurations described in the following sections.

Table 1-1

Desktop Models

Configuration Code Processor Hard Drive Memory

BWF1 P55C/166 1.6 GB 16 MB 256 KB S3 Trio64V2/DX BWF2 P55C/200 1.6 GB 16 MB 256 KB S3 Trio64V2/DX

✎

All models have maximum expandable memory up to 256 MB.

Internal Cache Graphics

1-2

Product Description

1.2 Features

Item Description

Processor

Speed (MHz)

Cache

L2 (KB), (write-through, direct mapped) 256

Architecture

CMOS RAM, battery backed Plug and Play capability

Chipset VIA Apollo 590VP ROM BIOS Flash memory device Memory

SIMM, 72-pin, non-parity, 66 MHz, EDO (SIMMs or DIMMs standard but not both)

Base (MB) Maximum (MB) SIMM sockets

Memory

DIMM, 168-pin, non-parity, 66 MHz, SDRAM, (SIMMs or DIMMs standard but not both)

Base (MB) Maximum (MB) DIMM sockets

Bays

3.5-inch Internal

3.5-inch External

5.25-inch External

Diskette drive

Standard 3.5-inch drive bay (MB) 1.44

Hard drive

Standard EIDE with drive fault prediction (GB) 1.6

Expansion slots

PCI/ISA/combination 3/3/1

Graphics

S3 Trio64V2/DX Enhanced 64-bit Graphics (MB)

I/O ports

Standard Serial (2)

Table 1-2

Features

Intel Pentium Processor with MMX Technology 166 200

PCI/ISA 242-byte Standard

16 256 4

16 256 2

2 1 2

Parallel USB (2) Monitor Keyboard Mouse

continued

Compaq Deskpro 1000 Series of Personal Computers 1-3

Table 1-2

Item Description

Power supply 200 watt, 115 VAC, 6.0 A/230 VAC, 3.0 A Power supply fan Standard Internal piezo speaker Standard Internal battery Standard Operating System Windows 95 Two-button mouse Standard Compaq Enhanced keyboard

with MS Windows-specific keys Standard

continued

1.3 System Design

This section presents a design overview and functional descriptions of the key components of the Compaq Deskpro 1000 Series of Personal Computers. All replaceable components are identified in Chapter 3, and removal/replacement instructions are presented in Chapter 5.

1.3.1 Design Overview

The desktop models of the Compaq Deskpro Series of Personal Computers use a conventional ATX chassis to house the removable system board, expansion boards, power supply, and mass storage devices.

All internal components are accessible when the cover—held in place by three screws—is removed. The front bezel is a separate assembly and is attached to the chassis with release latches.

The system board is easily removed from the chassis after the cover is removed. Details of the disassembly procedure are found in Chapter 5, “Removal and Replacement Procedures.”

A removable 3.5-inch drive cage is located to the left center of the chassis. This drive cage can be pulled out from the top, after removing the two screws securing it to the chassis, to provide access to cable connections and to the screws securing the drives to the drive cage. The removable drive cage accommodates one external diskette drive and two internal hard drives. The fixed 5.25-inch drive cage is located to the right of the removable cage and holds a maximum of two drives.

Both the removable and the fixed drive cages allow drive installation without the use of rails. Four screws secure a drive to the drive cage, and ensure proper alignment of the drive within the cage.

Expansion boards are installed vertically into the system board. A single screw secures each expansion board to the chassis.

The power supply is mounted in the right rear corner of the chassis. The power supply is held in place by four screws that are installed through the rear panel of the chassis and a single retaining screw on the inside on the chassis.

1-4 Product Description

1.4 Preloaded Software

This computer is shipped with Windows 95 installed as the operating system. The following software is preloaded on the computer:



Compaq Online Safety & Comfort Guide



Microsoft Windows 95

1.5 Computer Features

1.5.1 Front Panel Controls and LEDs

Figure 1-2.

Diskette Drive Activity Light Turns on when the diskette drive is reading or writing.

Power-On Light Turns on when the computer is turned on.

Hard Drive Activity Light Turns on when the hard drive is reading or writing.

Diskette Eject Button Ejects a loaded diskette.

Power Button Turns the computer on and off.

Front Panel Controls and LEDs

When the hard drive light 3 or diskette drive light 1 is on, the drive is either reading information from the disk or storing information on the disk.

Compaq Deskpro 1000 Series of Personal Computers 1-5

1.5.2 Drive Positions

Figure1-3.

One 3.5-inch 1.44-MB diskette drive

One 3.5-inch third-height drive bay for optional drive

One 3.5-inch third-height drive bay for primary hard drive

One 5.25-inch half-height drive bay for optional drive

Drive Positions on the Compaq Deskpro 1000 Desktop Computer

1-6 Product Description

1.5.3 Rear Panel Connectors

Figure 1-4.

Voltage Select Switch (115 V U.S. or 230 V to match geographical requirements)

Power Cord Connection

Mouse Connector

Keyboard Connector

Universal Serial Bus (USB) Connectors

Serial Connector

Parallel Port Connector

Serial Connector

Monitor Connector

Rear Panel Connectors

Compaq Deskpro 1000 Series of Personal Computers 1-7

1.6 Enhanced Keyboard

Figure 1-5.

Ctrl Used in combination with another key. Its effect depends on the

Windows Logo Keys Opens the Windows Start menu. Used in combination with another

Alt Used in combination with another key. Its effect depends on the

Windows Application Key Used (like the right mouse button) to open pop-up menus in a

Enhanced Keyboard

software application you are using.

key. Its effect depends on the software application you are using.

software application you are using.

Microsoft Office application. May perform other functions in other software applications.

The keyboard has feet on the bottom that enable the user to tilt the keyboard to a more comfortable typing angle.

Figure 1-6.

1-8 Product Description

Keyboard Tilt Feet

chapter

ROUBLESHOOTING

This chapter provides troubleshooting information for the Compaq Deskpro 1000 Series of Personal Computers including:

Power-On Self Test (POST)—POST messages listed in Table 2-1 include a description of



the error, the probable cause, and the recommended action that should be taken to resolve the error condition.

CMOS Setup Utility—Computer Setup options are available through the CMOS Setup



Utility. Troubleshooting Without Diagnostics—Tables 2-2 through 2-9 include a



problem/solution checklist for power, diskette drive, display, printer, hard drive, CDROM, and memory.

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

✎

Some features may not be available on all models.

2.1 Power-On Self Test (POST)

The POST procedure is embedded in the system BIOS and performs a series of diagnostic tests that automatically run when the system is turned on. POST checks the following assemblies to ensure that the computer system is functioning properly:



Keyboard



Mouse



System board



Memory modules



Video



Diskette drives



Hard drives



Power supply



Controllers

If POST detects an error in the system, an error condition is indicated by an audible and/or visual message. Table 2-1 explains the error codes and suggests a recommended course of action.

2.1.1 POST Error Messages

An error message may be followed by a prompt to press F1 to continue or press DEL to enter Setup.

Compaq Deskpro 1000 Series of Personal Computers 2-1

Table 2-1

Power-On Self-Test Messages

Message Probable Cause Recommended Action

The computer beeps: the beep consists of continuous long beeps

The computer beeps: the beep consists of one long beep followed by two short beeps

BIOS ROM Checksum Error System Halted

CMOS Battery Failed

CMOS Checksum Error - Defaults Loaded

CPU at nnnn Displays the running speed of

Display Switch Is Set Incorrectly

Press Esc to Skip Memory Test

Floppy Disk(s) Fail Cannot find or initialize the

Hard Disk Install Failure

No system memory is present. Add system memory.

A video error has occurred and the BIOS cannot initialize the video screen to display any additional information.

The checksum of the BIOS code in the BIOS chip is incorrect, indicating the BIOS code may have become corrupt.

CMOS battery is no longer functional.

The checksum of CMOS is incorrect, so the system loads the default equipment configuration.

the CPU. The display switch on the

system board can be set to either monochrome or color. This message indicates the switch is set to a different setting than indicated in Setup.

The system is testing memory. The user may press Esc to skip the full memory

floppy drive controller or the drive.

Cannot find or initialize the hard drive controller or the drive.

Ensure the VGA card is installed correctly and that the monitor cable is well connected.

Replace the BIOS.

Replace the battery.

A checksum error may indicate that CMOS has become corrupt. This error may have been caused by a weak battery. Check the battery and replace if necessary.

None.

Determine which setting is correct, and then either turn off the system and change the jumper, or enter Setup and change the Video selection.

test. Ensure the controller is installed correctly. If no

diskette drives are installed, be sure the Diskette Drive selection in Setup is set to None.

This will occur only if the BIOS supports low level format. Current BIOS does not support low-level format.

Continued

2-2 Troubleshooting

Table 2.1

Continued

Message Probable Cause Recommended Action

Hard Disk(s) Diagnosis Failure

Keyboard Error or No Keyboard Present

Keyboard is Locked Out - Unlock the Key

Memory Test This message displays during

Memory Test Fail If POST detects an error

Primary Master Hard Disk Fail

Primary Slave Hard Disk Fail

Secondary Master Hard Disk Fail

Secondary Slave Hard Disk Fail

The system has run specific disk diagnostic routines. This message appears if one or more hard disks return an error when the diagnostics run.

Cannot initialize the keyboard. Ensure the keyboard is attached correctly and no

This message usually indicates that one or more keys have been pressed during the keyboard tests.

a full memory test, counting down the memory areas being tested.

during memory testing, additional information appears giving specifics about the type and location of the memory error.

POST detects an error in the primary master IDE hard drive.

POST detects an error in the primary slave IDE hard drive.

POST detects an error in the secondary master IDE hard drive.

POST detects an error in the secondary slave IDE hard drive.

Hard disk may be damaged, and may need to be replaced.

keys are pressed during POST. To purposely configure the system without a keyboard, set the error halt condition in Setup to Halt on All but Keyboard. The BIOS then ignores the missing keyboard during POST.

Ensure no objects are resting on the keyboard.

None.

If this happens often, the memory module may need to be replaced.

Ensure the controller is installed correctly, the cable is attached correctly, and the hard disk jumper is set to primary master. If no hard drive is installed, be sure the hard drive selection in Setup is set to None.

Ensure the controller is installed correctly, the cable is attached correctly, and the hard disk jumper is set to primary slave. If no hard drive is installed, be sure the hard drive selection in Setup is set to None.

Ensure the controller is installed correctly, the cable is attached correctly, and the hard disk jumper is set to secondary master. If no hard drive is installed, be sure the hard drive selection in Setup is set to None.

Ensure the controller is installed correctly, the cable is attached correctly, and the hard disk jumper is set to secondary slave. If no hard drive is installed, be sure the hard drive selection in Setup is set to None.

Compaq Deskpro 1000 Series of Personal Computers 2-3

2.2 CMOS Setup Utility

The Award BIOS chip contains the ROM setup information of your computer and serves as an interface between the processor and the rest of the components on the motherboard.

The CMOS Setup Utility, which is built into the BIOS and stored in the CMOS RAM, is executed when the user changes the battery or the existing settings, or when the system detects an error during POST and asks you to run the Setup utility. See Chapter 7, “Utilities,” for instructions on how to use this utility.

✎

To execute the CMOS Setup Utility:

1. Shut down the operating system.

2. Turn the computer off, then on.

3. Press the Delete key when the message “Press DEL to enter Setup” appears on the lower right

4. Use the arrow keys to highlight the setup feature you want to change.

5. Press Enter to open the selected setup feature.

6. Use the arrow keys to highlight the value you want to change.

7. Use the Page Up or Page Down keys to change the selected value.

8. Follow the on-screen instructions to save the changes and exit, or to exit the utility without

✎

The CMOS Setup Utility includes the following options:



Before removing or replacing a subassembly, safeguard the CMOS settings. Write them down, make a print screen of each CMOS setup page, or use a third-party CMOS rescue software to store the settings in a file on a write-protected diskette.

hand corner of the screen.

saving any changes.

Failure to configure the system correctly can result in loss of data and reduced hard drive capacity.

Standard CMOS Setup



BIOS Features Setup



Chipset Features Setup



Power Management Setup



PnP/PCI Configuration Setup



Load BIOS Defaults



Load Setup Defaults



Integrated Peripherals



Supervisor Password



User Password



IDE HDD Auto Detection



Save and Exit Setup



Exit without Saving

2-4 Troubleshooting

2.2.1 Preparing the Computer

If you encounter an error condition, complete the following steps before starting problem isolation procedures:

1. Ensure proper ventilation. The computer should have a 3-inch (7.6-cm) clearance at the back of the system unit.

2. Turn off the computer and peripheral devices.

CAUTION:

or any other peripheral devices. Disconnecting or connecting any peripheral devices while the unit power is on can damage the system board.

3. Disconnect any peripheral devices other than the monitor and keyboard. Do not disconnect the printer if you want to test it or use it to log error messages.

4. Install loop-back and terminating plugs for complete testing.

5. Run a diagnostics utility.

Always ensure that the power is off before disconnecting or reconnecting the mouse, keyboard,

2.2.2 Clearing the Password

If you have to clear the password before changing any of the CMOS settings, refer to Chapter 7, “Utilities,” for instructions.

2.3 Troubleshooting Without Diagnostics

This section describes some simple, preliminary tests and guidelines for troubleshooting the computer without using diagnostics software.

✎

Diagnostics software is not included with this computer. Compaq diagnostics software, Version PC 10.25A, is available at www.compaq.com. Third-party diagnostics software is also available.

2.3.1 Checklist for Solving Minor Problems

If you encounter some minor problem with the computer or a software application, go through the following checklist for possible solutions before running any of the diagnostic utilities:



Is the computer connected to a working power outlet?



Is the computer turned on and the power light illuminated?



Are all cables connected properly and seated?



Is the monitor turned on and the power light illuminated?



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



Press and hold any key. If the system beeps, then the keyboard should be operating correctly.



Are all of the necessary device drivers installed?



Have all printer drivers been installed for each application?



Is the CONFIG.SYS file correct?



Is the AUTOEXEC.BAT file (MS-DOS) or STARTUP.CMD file (OS/2) correct?

Compaq Deskpro 1000 Series of Personal Computers 2-5



Was a nonbootable diskette loaded in the diskette drive at power-up?



Are all switch settings correct?



Have all jumper settings been set as instructed by the configuration utility?



Was Computer Setup run after installing options (memory, disk drives, expansion boards, etc.) and before installing industry standard architecture (ISA) boards?

2.3.2 Power Problems

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

Problem Possible Solution

Computer will not turn on. Ensure that the computer is connected to a power source.

Computer does not automatically display the date and time. (Date/Time not set)

Computer powered off automatically.

Table 2-2

Solutions for Power Problems

Cables to the external power source may be unplugged. Ensure that cables connecting the computer and the external source are plugged in properly.

A PCI or ISA card that has been installed may be defective. Remove any adapter card that was just installed.

The real-time clock (RTC) battery may need to be replaced. See Chapter 5 for replacement procedures.

The unit temperature may have been exceeded. Check the fan for function and blockage.

Check to ensure that the power cord is securely plugged into the wall and the unit.

2-6 Troubleshooting

2.3.3 Diskette Drive Problems

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

Solutions for Diskette Drive Problems

Problem Possible Solution

Diskette drive light stays on. 1. Diskette may be damaged. In Windows 95, run SCANDISK. At the

Diskette drive cannot write to a diskette.

Diskette drive cannot read a diskette.

A problem has occurred with a disk transaction

Nonsystem disk message. Remove the diskette from the drive and press any key. Drive not found. Check the cables for loose connections.

Table 2-3

Start menu, highlight Programs, select Accessories, select System Tools, then SCANDISK.

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

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

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

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 in Setup.

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 by Computer Setup. Run Computer Setup and enable the diskette drive.

The directory structure is bad, or there is a problem with a file. In Windows 95, run SCANDISK. At the Start menu, highlight Programs, select Accessories, select System Tools, then SCANDISK.

Compaq Deskpro 1000 Series of Personal Computers 2-7

2.3.4 Display Problems

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

Problem Possible Solution

Screen is blank.

Graphics colors are wrong.

Characters are dim.

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

Blurry display or requested resolution cannot be set.

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

Garbled characters on the screen are mixed with text.

Screen goes blank.

Monitor overheats.

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

Table 2-4

Solutions for Display Problems

1. Monitor is not turned on and the monitor light is not on. Turn on the monitor and check that the monitor light is on.

2. Screen save has been initiated. Press any key or move the mouse to light the screen.

3. Check the cable connection from the monitor to the computer and check the electrical outlet.

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

5. The energy saver feature has been enabled. Hit any key or type the password.

6. 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 and, if there is a sync switch, set it to External.

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

1. Ensure 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.

1. Adjust the monitor's brightness and contrast controls.

2. Check that the video cable is securely connected to the graphics 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 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.

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, be sure the monitors are not interfering with each other's magnetic field by moving them apart.

The ANSI.SYS driver is not in the ANSI.SYS driver to the

DEVICE = C:\CPQDOS\ANSI.SYS

A screen blanking utility may be installed or energy saver features are enabled. Press any key or type password.

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

CONFIG.SYS

file by adding the following line:

file. Add the

2-8 Troubleshooting

2.3.5 Printer Problems

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

Problem Possible Solution

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

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

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

Printer is offline. The printer may be out of paper. Check the paper tray and refill it if it

Table 2-5

Solutions for Printer Problems

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

check the power cord and electrical outlet.

Install the correct printer drivers for the application.

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

is empty. Select online.

Compaq Deskpro 1000 Series of Personal Computers 2-9

2.3.6 Hard Drive Problems

This section identifies some quick checks for hard drive–related problems.

Problem Possible Solution

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

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

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

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

Hard drive operation seems slow. The hard disk files may be fragmented.

Table 2-6

Solutions for Hard Drive Problems

block usage of bad sectors. If necessary, reformat the hard disk.

the C:\> prompt, run SCANDISK to check for problems. If problems exist, run SCANDISK /AUTOFIX to correct the problems.

2. The system may not have automatically recognized a newly installed device. If Windows 3.1 is installed, run Computer Setup and identify the new device. If Windows 95 is installed, run Device Manager and identify the device.

3. 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.

Remove the diskette from the diskette drive.

2. The system is trying to start from the hard drive but the hard disk has been damaged. Insert a bootable diskette into the diskette drive and restart the computer with Ctrl+Alt+Del.

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

At the C:\> prompt, run SCANDISK to check for problems. If problems exist, run SCANDISK /F to correct the problems. If a large number of lost allocation units is found, run the MS-DOS defragmentation program DEFRAG. See the Microsoft Windows & MS-DOS 6.2 User's Guide for more information.

Alternatively, at the C:\> prompt, run SCANDISK to check for problems. If problems exist, run SCANDISK /AUTOFIX to correct the problems. If a large number of lost allocation units is found, run the MS-DOS defragmentation program DEFRAG. Type HELP SCANDISK for more information.

2-10 Troubleshooting

2.3.7 Hardware Installation Problems

This section identifies some quick checks for hardware problems.

Solutions for Hardware Installation Problems

Problem Possible Solutions

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

The computer supports Plug and Play, but the hardware configuration settings in Computer Setup do not match the settings in Windows 95 Device Manager.

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 computer and follow the instructions for accepting the changes.

3. The system may not have automatically recognized the new device. If Windows 3.1 is installed, run Computer Setup and identify the new device. If Windows 95 is installed, run Device Manager and identify the device.

4. A Plug and Play board may not automatically configure when added if the default configuration conflicts with other devices. Run Computer Setup (Windows 3.1 installed) or run Device Manager (Windows 95 installed) 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 computer, turn on the external device, and then turn the computer on to integrate the new device with the computer.

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.

In Windows 95, onboard serial devices that are assigned to ports other than COM1 or COM2, have their configuration saved statically in CMOS. When the system is rebooted, the ROM configures the device to the static setting; when Windows 95 loads, it configures the device to the configuration set via Device Manager. In such cases, the configuration shown when CMOS Setup is run does not match what was set up via Device Manager.

If these devices must be configured a certain way before Windows 95 loads, then the serial port devices on the system should only be configured to COM1 or COM2 resources. If the system has two serial devices plus a modem, then the first serial device can be COM1 or COM2 or disabled, the modem can be COM1 or COM2 or disabled, and the second serial device can be COM4 or disabled.

Table 2-7

Compaq Deskpro 1000 Series of Personal Computers 2-11

2.3.8 CD-ROM Drive Problems

This section identifies some quick checks for CD-ROM drive problems.

Problem Possible Solution

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

System will not boot from CD-ROM drive.

Cannot eject compact disc (trayload unit only).

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

Table 2-8

CD-ROM Drive Problems

it in the drive, then reload.

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

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

2. Ensure that drive cabling and jumpers are set correctly. To boot a SCSI drive, the drive ID number must be set to 0.

CD is not properly seated in the drive. Turn off the computer and insert a thin metal rod into the emergency eject hole and push firmly (a straightened paper clip can be used). 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 computer and check to see that the drive cable is connected properly and the drive jumpers are set correctly.

✎

Some features may not be available on all models.

2.3.9 Memory Problems

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

Problem Possible Solution

Out of Memory error. 1. In Windows 95, use the Device Manager to check memory

Memory count during POST is wrong.

Insufficient memory error during operation

Table 2-9

Memory Problems

configuration.

2. The computer has run out of memory to run the application. Check the application documentation to determine the memory requirements.

The memory modules may not be installed correctly. Check that the memory modules have been installed correctly and that mixed EDO and FPM DRAM are in the correct bank, then run the Configuration utility. (If the system contains mixed EDO and FPM DRAMs, the EDO pair is one bank and the FPM pair is another bank.)

1. Too many Terminate and Stay Resident programs (TSRs) are installed. Delete any unnecessary TSRs.

2. The computer has run out of memory for the application. Check the memory requirements for the application or add more memory to the computer.

2-12 Troubleshooting

chapter

LLUSTRATED PARTS CATALOG

This chapter provides an illustrated parts breakdown and a reference for spare parts for the Compaq Deskpro 1000 Series of Personal Computers.

Figure 3-1.

Compaq Deskpro 1000 Series of Personal Computers

Compaq Deskpro 1000 Series of Personal Computers 3-1

3.1 System Unit

Figure 3-2.

System Unit

Table 3-1

System Unit Spare Parts

Description Spare Part Number Warranty Tier

System unit cover 333833-001 A

Power supply, 200W (Includes fan) 333818-001 A

Drive Cage 333838-001 A

LED holder (reference only; part of Miscellaneous Plastics

kit) Base pan (chassis assembly) 333834-001 A

Front bezel. (Includes power switch cap and bezel blanks) 333839-001 A

Feet (reference only; part of Miscellaneous Plastics kit)

3-2 Illustrated Parts Catalog

3.2 Mass Storage Devices

Figure 3-3.

Mass Storage Devices

Table 3-2

Mass Storage Devices

Description Spare Part Number Warranty Tier

3.5-inch, 1.44-MB, diskette drive 333817-001 A

1.6-GB hard drive 333816-001 A

Compaq Deskpro 1000 Series of Personal Computers 3-3

3.3 Cables

Figure 3-4.

Cables

Table 3-3

Cables

Description Spare Part Number Warranty Tier

Miscellaneous cable kit includes: 333824-001 A

Cable, diskette drive

Cable, hard drive

Cables, LED: hard drive and power

Cable, power, APD 121259-001 A

Cable, power, EMEA* 285810-001 A

Cable, power, ANZ* 285811-001 A

Cable, power, LA, Thailand, Taiwan* 142766-001 A

Cable, power, PRC* 298594-AA1 A

*Not shown

3-4 Illustrated Parts Catalog

3.4 Standard and Optional Boards

Figure 3-5. Standard and Optional Boards

Table 3-4

Standard and Optional Boards

Description Spare Part Number Warranty Tier

System board, P55C 333814-001 A

EDO SIMM, 8 MB 285734-001 A

SDRAM DIMM, 16 MB 333820-001 A

. Video upgrade memory, 512 KB 333822-001 A

Video board* 333821-001 A

Microprocessor, P55C/200 MHz, with thermal pad 240181-002 A

Microprocessor, P55C/166 MHz, with thermal pad* 240181-001 A

*Not shown

✎

Video board design varies by model.

Compaq Deskpro 1000 Series of Personal Computers 3-5

3.5 Keyboards

Figure 3-6.

Keyboard

Table 3-5

Keyboards

Description Spare Part Number Warranty Tier

1. Arabic* 333828-171 A

2. BHCSY (Bosnia-Herzegovina, Croatia, Slovenia, and Yugoslavia)*

3. Brazilian Portuguese* 333828-201 A

4. Czech* 333828-221 A

5. French* 333828-051 A

6. Hungarian* 333828-211 A

7. International 333828-B31 A

8. Korean (Hanguel)* 333828-AD1 A

9. LA Spanish* 333828-161 A

10. Russian* 333828-251 A

11. Slovakian* 333828-231 A

12. Taiwanese* 333828-AB1 A

13. Thai* 333828-281 A

14. Turkish* 333828-141 A

* Not shown

333828-B41 A

3-6 Illustrated Parts Catalog

3.6 Miscellaneous Hardware Kit

Figure 3-7.

Miscellaneous Hardware Kit

Table 3-6

Miscellaneous Hardware Kit

Description Spare Part Number Warranty Tier

Miscellaneous hardware kit. Includes: 333832-001 D

Slot Cover (2 each)

I/O Panel

M3x0.5P-5mm screws (25 each)*

#6-32UNC ¼-inch hex screws (25 each)*

Hex screw locks (25 each)*

* Not shown

Compaq Deskpro 1000 Series of Personal Computers 3-7

3.7 Miscellaneous Plastics Kit

Figure 3-8.

Miscellaneous Plastics Kit

Table 3-7

Miscellaneous Plastics Kit

Description Spare Part Number Warranty Tier

Miscellaneous plastics kit, includes:

LED Holder

Card guide

System board standoff (2 each)

Cable twist

Bezel blank, 5.25-inch

Feet (4 each)

* Not shown

333831-001 D

3-8 Illustrated Parts Catalog

3.8 Miscellaneous Parts

Figure 3-9.

Description Spare Part Number Warranty Tier

Two-button mouse 298792-001 A

Battery, real-time clock (external) 234556-001 A

Active heat sink (P55C/200 with thermal pad and

captive clip; replaces passive heat sink) Power switch (with spring, LED holder, and cable) 333827-001 A

Miscellaneous Parts

3.9 Shipping Boxes

Description Spare Part Number Warranty Tier

Shipping box, with buns (return kit)

3.10 Documentation

Table 3-8

Miscellaneous Parts

333825-001 A

Table 3-9

Shipping Boxes

333840-001 D

Table 3-10

Documentation

Description Spare Part Number Warranty Tier

Maintenance & Service Guide 333835-001 D Illustrated Parts Map 333836-001 D Reference Guide 333837-001 D

Compaq Deskpro 1000 Series of Personal Computers 3-9

chapter

EMOVAL AND REPLACEMENT PRELIMINARIES

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

4.1 Electrostatic Discharge Information

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

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

4.1.1 Generating Static

Table 4-1 shows how different activities generate static electricity at different electrostatic voltage levels.

Table 4-1

Typical Electrostatic Voltages

Relative Humidity

Event 10% 40% 55%

Walking across carpet 35,000 V 15,000 V 7,500 V Walking across vinyl floor 12,000 V 5,000 V 3,000 V Motions of bench worker 6,000 V 800 V 400 V Removing DIPs* from plastic tube 2,000 V 700 V 400 V Removing DIPs* from vinyl tray 11,500 V 4,000 V 2,000 V Removing DIPs* from Styrofoam 14,500 V 5,000 V 3,500 V Removing bubble pack from PCB 26,500 V 20,000 V 7,000 V Packing PCBs in foam-lined box 21,000 V 11,000 V 5,000 V *Dual Inline Packaging (DIP) is the packaging around individual microcircuitry. These are then multi-

packaged inside plastic tubes, trays, or Styrofoam.

700 volts can degrade a product.

✎

Compaq Deskpro 1000 Series of Personal Computers 4-1

4.1.2 Preventing Electrostatic Damage to Equipment

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



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



Protect all electrostatic parts and assemblies with conductive or approved containers or packaging.



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



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



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



Avoid contact with pins, leads, or circuitry.



Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive foam.

4.1.3 Personal Grounding Methods

The method for grounding must include either a wrist strap or a foot strap at a grounded workstation. When seated, wear a wrist strap connected to a grounded system. When standing, use footstraps and a grounded floor mat.

Table 4-2

Static Shielding Protection Levels

Method Voltage

Antistatic plastic 1,500 Carbon-loaded plastic 7,500 Metallized laminate 15,000

4-2 Removal and Replacement Preliminaries

4.1.4 Grounding Workstations

To prevent static damage at the workstation, use the following precautions:



Cover the workstation with approved static-dissipative material. Provide a wrist strap connected to the work surface and properly grounded tools and equipment.



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



Handle electrostatic sensitive components, parts, and assemblies by the case or PCB laminate. Handle them only at static-free workstations.



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



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



Keep work area free of nonconductive materials such as ordinary plastic assembly aids and Styrofoam.



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



Use a portable field service kit with a static-dissipative vinyl pouch that folds out on a work mat. Also, use a wrist strap and a ground cord for the work surface. Ground the cord to the chassis of the equipment undergoing test or repair.

4.1.5 Personal Grounding Equipment

Use the following equipment to prevent static electricity damage to equipment: Wrist Straps are flexible straps with a minimum of one-megohm +/- 10% resistance in the

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

Heelstraps/Toestraps/Bootstraps can be used at standing workstations and are compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, use them on both feet with a minimum of one-megohm resistance between the operator and ground. To be effective, the conductive strips must be worn in contact with the skin.

Compaq Deskpro 1000 Series of Personal Computers 4-3

4.1.6 Recommended Materials and Equipment

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



Antistatic tape



Antistatic smocks, aprons, or sleeve protectors



Conductive bins and other assembly or soldering aids



Conductive foam



Conductive tabletop workstations with ground cord of one-megohm resistance



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



Field service kits



Static awareness labels



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



Material handling packages



Conductive plastic bags



Conductive plastic tubes



Conductive tote boxes



Opaque shielding bags



Transparent metallized shielding bags



Transparent shielding tubes

4.2 Service Considerations

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

4.2.1 Tools and Software Requirements

To service the computer, you need the following:



Phillips-head screwdrivers for use with #0 and #1 screws



Flat-bladed screwdriver



Diagnostics software

✎

Diagnostics software is not included with this computer. Compaq diagnostics software, Version PC 10.25A, is available from the Compaq world-wide web site at www.compaq.com. Third-party diagnostics software is also available.

4-4 Removal and Replacement Preliminaries

4.2.2 Screws

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

✎

As each subassembly is removed from the computer, it should be placed away from the work area to prevent damage.

4.2.3 Cables and Connectors

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

CAUTION:

reassembly process. Improper cable placement can damage the computer.

When servicing this computer, ensure that cables are placed in their proper location during the

4.2.4 Hard Drives

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



Use only the packaging provided by Compaq for shipping.



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



Keep hard drives in their protective packaging until they are actually mounted in the CPU or external storage unit.



Avoid dropping drives from any height onto any surface.

4.2.5 Plastic Parts

Plastic parts can be damaged by the use of excessive force during disassembly and reassembly. When handling the plastic parts, use care. Do not use a screwdriver or similar tool to pry apart the plastic components.

4.2.6 Lithium Battery

The battery that came with the computer is replaceable.

CAUTION:

attempt, thereby making it unusable. Do not abuse or disassemble the lithium battery, as it may explode if mistreated.

Never attempt to remove a lithium battery. You can damage the system board in such an

Compaq Deskpro 1000 Series of Personal Computers 4-5

chapter

EMOVAL AND REPLACEMENT PROCEDURES

This chapter provides subassembly/module level removal and replacement procedures for the Compaq Deskpro 1000 Series of Personal Computers.

Before removing or replacing a subassembly, safeguard the CMOS settings, by writing them down, making a print screen of each CMOS setup page, or using a third-party CMOS rescue software to store the settings in a file on a write-protected diskette.

✎

After completing all necessary removal and replacement procedures, run the CMOS Setup Utility to reconfigure the computer. See Chapter 7, “Utilities,” for instructions on how to run the CMOS Setup Utility.

To facilitate reassembly of any part of the computer, note the orientation of each cable connector and the routing of each cable before you disconnect it.

5.1 Serial Number

The computer serial number should be provided to Compaq whenever requesting information or ordering spare parts. The serial number is located on the system cover at the right front corner, 1 and also on the rear of the chassis to the left of and above the expansion slot area.

Figure 5-1.

Locating the Serial Number

Compaq Deskpro 1000 Series of Personal Computers 5-1

5.2 Disassembly/Assembly Sequence

5.3 Computer Feet

5.4 Preparation for Disassembly

5.5 System Unit Cover

5.6 Expansion Board

5.7 Expansion Board Guide

5.8 System Board

5.9 Graphics Memory

5.10.1 SIMM Module

5.10.2 DIMM Module

5.11 Power Supply

5.12 Microprocessor

5.13 Front Bezel

5.14 LED Retainer Assembly

5.15 LED Cables

5.16 Power Button

5.17 Bezel Blank

5.18 Battery

5.19.2 Drive Cage

5.19.3 3.5-Inch Drive

5.19.4 5.25-Inch Drive

5-2 Removal and Replacement Procedures

5.3 Feet

Four rubber feet are mounted to the underside of the base pan. No parts have to be removed to access the feet. The replacement feet have an adhesive surface and are shipped with a protective strip in place.

Remove the feet and clean the metal with a clean, dry cloth. Remove the protective strip from the replacement feet before installation.

Figure 5-2.

Installing the Feet

5.4 Preparation for Disassembly

1. Remove any diskette, compact disc or tape from the computer.

2. Turn off the computer and any peripheral devices connected to it.

CAUTION:

3. Disconnect the power cord from the electrical outlet and then from the computer.

4. Disconnect all peripheral devices from the computer.

✎

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

The computer power switch should be turned off before you disconnect any cables.

Compaq Deskpro 1000 Series of Personal Computers 5-3

5.5 System Unit Cover

1. Perform preparation procedures (Section 5.4).

2. Remove the three screws on the rear of the computer to release the cover.

3. Slide the computer cover backward about 1 inch (2.5 cm).

4. Lift the cover up, then off the unit.

Figure 5-3.

Removing the System Unit Cover

To replace the cover, reverse the previous procedure.

5.6 Expansion Board

The Compaq Deskpro 1000 Series of Personal Computers contains seven expansion slots:

Three dedicated 32-bit PCI (Peripheral Component Interconnect) expansion slots

One PCI/ISA shared expansion slot

Three dedicated 32-bit ISA (Industry Standard Architecture) expansion slots

Figure 5-4.

5-4 Removal and Replacement Procedures

Location of the Slots

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

3. Remove the screw securing the expansion board to the chassis.

4. Pull the board out of the slot.

Figure 5-5.

Removing a Board

To replace a board, reverse the previous procedure.

Compaq Deskpro 1000 Series of Personal Computers 5-5

5.7 Expansion Board Guide

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

3. Remove all expansion boards from the computer (Section 5.6).

4. Press in on the two plastic clips 1 on the right side of the guide. The guide will pop out of the chassis.

Figure 5-6.

To replace the expansion board guide, reverse the previous procedure.

Removing the Expansion Board Guide

5-6 Removal and Replacement Procedures

5.8 System Board

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

3. Remove all expansion boards (Section 5.6).

4. Disconnect any cables plugged into the system board.

5. Remove the seven screws securing the system board to the chassis.

6. Pinch the two standoff tabs 1 to release the system board, lifting the board at the same time to remove it from the standoffs.

7. Pull the board forward about one-half inch, then lift it up and out of the chassis.

Figure 5-7.

To replace the system board, reverse the previous procedure.

Removing the System Board

Compaq Deskpro 1000 Series of Personal Computers 5-7

5.9 Graphics Memory

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

3. Remove the video graphics board and place on a protected surface (Section 5.6).

4. Install the two 512-KB memory upgrade modules, making sure that the modules are firmly seated.

✎

To replace the video graphics board, reverse the previous procedure.

Video card design varies by model.

Figure 5-8.

Installing a Graphics Module

5-8 Removal and Replacement Procedures

5.10 Memory Modules

You can expand computer memory by installing industry-standard single inline memory modules (SIMMs) or dual inline memory modules (DIMMs) on the system board.

The system board includes:



Four SIMM sockets that can be populated with Extended Data Output (EDO) or Fast Page Mode (FPM) modules installed in equally matched pairs; for example, two 8-MB modules, two 16-MB modules, or two 32-MB modules.



Two DIMM sockets that can be populated with EDO or SDRAM modules either singly or in pairs.

Figure 5-9.

DIMM 1 (Bank 0)

DIMM 2 (Bank 1)

SIMM 1 & 2 (Bank 0)

SIMM 3 & 4 (Bank 1)

✎

The system board can use either SIMM or DIMM memory, but not both at the same time, and can be populated as shown in the Table 5-2.

Memory Module Sockets on the System Board

Compaq Deskpro 1000 Series of Personal Computers 5-9

Table 5-1

Memory Configuration Options

Total System Memory, MB

8 4 & 4 8 16 4 & 4 4 & 4 8 8

32 8 & 8 8 & 8 16 16

64 16 & 16 16 & 16 32 32

128 32 & 32 32 & 32 64 64

256 64 & 64 64 & 64 128 128

SIMM 3 & 4 (Bank 1)

8 & 8 16

16 & 16 32

32 & 32 64

64 & 64

SIMM 1 & 2 (Bank 0)

DIMM 1 (Bank 0)

DIMM 2 (Bank 1)

5-10 Removal and Replacement Procedures

5.10.1 Installing a SIMM Module

CAUTION:

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

CAUTION

damage the module.

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

3. Insert a memory module at a 45-degree angle into a SIMM socket on the system board 1.

✎

A memory module can be installed only one way. Match the notch on the module with the tab on the memory socket. Push the module down into the socket, ensuring that the module is fully inserted and properly seated.

Static electricity can damage the electronic components or optional equipment. Before

: When handling a memory module, be careful not to touch any of the contacts. Doing so may

Figure 5-10

4. Rotate the module to an upright position, allowing the latches to snap into place 2.

5. Repeat steps 3 and 4 for each module that you want to install.

6. Replace the system unit cover.

7. Plug in the computer power cord.

8. Turn on the computer.

✎

9. Test the system (optional) using a diagnostics software.

✎

The computer recognizes system memory upgrades and automatically reconfigures the computer. If, for some reason, the memory upgrades do not configure correctly, run the CMOS Setup Utility to reconfigure the computer. See Chapter 7, “Utilities,” for information running the CMOS Setup Utility.

Installing a SIMM Module

Compaq Deskpro 1000 Series of Personal Computers 5-11

5.10.2 Installing a DIMM Module

CAUTION:

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

CAUTION:

damage the module.

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

3. Press outward at the same time on both latches 1 of the DIMM socket and insert the memory module 2 into the socket.

✎

4. Push the module down into the socket, ensuring that the module is fully inserted and properly

A memory module can be installed only one way. Match the notch on the module with the tab on the memory socket.

seated 3.

Static electricity can damage the electronic components or optional equipment. Before

When handling a memory module, be careful not to touch any of the contacts. Doing so may

Figure 5-11.

5. Replace the system unit cover.

6. Plug in the computer power cord.

7. Turn on the computer.

✎

8. Test the system (optional) using a diagnostics software.

✎

5-12 Removal and Replacement Procedures

Diagnostics software is not included with this computer. Compaq diagnostics software, Version PC 10.25A, is available from the Compaq world-wide web site at WWW.COMPAQ.COM. Third-party diagnostics software is also available.

Installing a DIMM Module

5.11 Power Supply

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

3. Remove the power connector cables from the system board.

4. Disconnect the power cables from the drives.

5. Remove four screws from the power supply on the rear of the chassis.

6. Remove one screw securing the power supply to the inside of the chassis.

7. Lift the power supply up until it hits the lip of the chassis.

8. Slide the power supply towards the front, and lift it out of the chassis.

Figure 5-12.

To replace the power supply, reverse the previous procedure.

Removing the Power Supply

Compaq Deskpro 1000 Series of Personal Computers 5-13

5.12 Microprocessor

5.12.1 Passive Heat Sink (P55C/166)

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

CAUTION:

pull the ZIF socket handle. This clip engages the processor socket to hold the heat sink in place.

WARNING:

to cool before touching.

3. Remove the heat sink retaining clip 1 by pressing down on the clip until it releases from the safety catch.

4. Lift the heat sink 2 off the processor.

5. Release the original processor 4 from the socket by pulling the handle 5 on the ZIF socket out and upward.

✎

6. Lift the processor 4 out of the socket.

The handle on the ZIF socket in your computer may not look identical to the handle shown in the drawing. All handle types perform the same function.

When replacing a Pentium processor, you must release the heat sink retaining clip before you

To reduce the risk of personal injury from hot surfaces, allow the internal system components

Figure 5-13. Removing the Microprocessor from the System Board

CAUTION:

Pin 1) is aligned with the triangular area of the ZIF socket (hinged corner). Failure to do so could result in burning out both the processor and the system board.

5-14 Removal and Replacement Procedures

When replacing the processor, be sure that the clipped corner of the processor (location of

To install a processor, complete the following steps:

1. Lower the processor into the ZIF socket ensuring that pin 1 on the processor lines up with pin 1 on the ZIF socket.

2. Push the handle on the ZIF socket back into place to secure the processor.

3. Replace the heat sink and heat sink retaining clip.

✎

4. Replace the system unit cover.

5. Plug in the computer power cord.

6. Turn on the computer.

7. Run the CMOS Setup Utility. For information on how to run the utility, see Chapter 7,

Ensure that the new thermal pad 3 (included in the spares kit) is in place before installing the heat sink.

“Utilities.”

Compaq Deskpro 1000 Series of Personal Computers 5-15

5.12.2 Active Heat Sink (P55C/200)

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

CAUTION:

pull the ZIF socket handle. This clip engages the processor socket to hold the heat sink in place.

WARNING:

to cool before touching.

3. Remove the heat sink fan plug 3 from the socket on the system board.

4. Release the heat sink retaining clips 2 from the tabs on the ZIF socket.

5. Lift the heat sink 1 off the ZIF socket.

6. Release the original processor from the socket by pulling the handle 6 on the ZIF socket out and upward.

✎

6. Lift the processor 5 out of the socket.

The handle on the ZIF socket in your computer may not look identical to the handle shown in the drawing. All handle types perform the same function.

When replacing a Pentium processor, you must release the heat sink retaining clip before you

To reduce the risk of personal injury from hot surfaces, allow the internal system components

Figure 5-13.2.

CAUTION:

Pin 1) is aligned with the triangular area of the ZIF socket (hinged corner). Failure to do so could result in burning out both the processor and the system board.

5-16 Removal and Replacement Procedures

Removing the Microprocessor from the System Board

When replacing the processor, be sure that the clipped corner of the processor (location of

To install a processor, complete the following steps:

1. Lower the processor into the ZIF socket ensuring that pin 1 on the processor lines up with pin 1 on the ZIF socket.

2. Push the handle on the ZIF socket back into place to secure the processor.

3. Replace the heat sink.

✎

4. Insert the heat sink fan plug 3 into the CPU_FAN socket.

5. Replace the system unit cover.

6. Plug in the computer power cord.

7. Turn on the computer.

8. Run the CMOS Setup Utility. For information on how to run the utility, see Chapter 7,

Ensure that the new thermal pad 4 (included in the spares kit) is in place before installing the heat sink.

“Utilities.”

Compaq Deskpro 1000 Series of Personal Computers 5-17

5.13 Front Bezel Assembly

To remove the bezel:

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

3. From the inside the chassis, push the release latches 1 in and push the top of the bezel out and away from the chassis to release the bezel at those points.

4. Slide the bezel up from the bottom of the chassis to separate it from the chassis.

Figure 5-14.

To replace the front bezel, reverse the previous procedure, taking care to properly position the hinge points and the release latches before pushing the bezel back into the chassis.

Removing the Front Bezel

5-18 Removal and Replacement Procedures

5.14 LED Retainer Assembly

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

3. Remove the front bezel assembly (Section 5.13).

4. From the outside of the chassis, press the tab 1 on either side of the LED assembly to pop it out of the chassis, then continue to slide the assembly to the left.

Figure 5-15.

To install the LED retainer assembly, reverse the previous procedure.

Removing the LED Retainer Assembly and Cables

Compaq Deskpro 1000 Series of Personal Computers 5-19

5.15 LED Cables

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

3. Remove the front bezel assembly (Section 5.13).

4. Disconnect the cables from the system board.

5. Free the cable from the cable twist attached to the floor of the chassis.

Figure 5-16.

Removing the LED Cables from the System Board

Table 5-2

LED Cables

Ref. Component Cable Color

1 2 3

6. Remove the LED retainer assembly from the chassis (Section 5.14).

7. From the front of the LED retainer assembly, push each green LED toward the rear of the retainer assembly and slide each LED out of its socket.

8. Disconnect the cables attached to the 3.5-inch hard drive and diskette drive in the drive cage.

9. Remove two screws from the top of the drive cage.

10. Slide the drive cage to the rear about one inch allowing the front of the cage to clear the bezel, then lift the cage out of the chassis.

11. From the rear of the LED holder, push the tabs on each side of the power button outward, then pull the switch 3 out of the socket.

To install the cables, reverse the previous procedure.

✎

When installing the LED's, ensure that LED's are installed as shown.

Power LED Cable Green/White Hard Drive LED Cable Yellow/White Power Switch Cable Blue/White

5-20 Removal and Replacement Procedures

5.16 Power Button

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

3. Remove the front bezel (Section 5.13).

4. From the rear of the front bezel, depress the tabs on each side of the power button; the button with its spring will come out of the front of the bezel.

Figure 5-17.

To replace the power button, reverse the previous procedure.

Removing the Power Button

Compaq Deskpro 1000 Series of Personal Computers 5-21

5.17 Bezel Blank

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

3. Remove the front bezel (Section 5.13).

4. With the front bezel in an upright position, press the tabs on the side of the bezel blank towards the center of the blank and push the bezel blank out of the front of the bezel.

Figure 5-18.

To replace the bezel blank, reverse the previous procedure.

Removing the Bezel Blank

5-22 Removal and Replacement Procedures

5.18 Replacement Battery

The real-time clock battery that came with the computer can be replaced with a Compaq battery or a comparable 12 microamp alkaline, 3.0 volt battery.

✎

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

3. Press down on the retainer latch 1 and slide the battery out of the holder.

4. Insert new battery into holder.

5. Replace the system unit cover.

6. Plug in the computer and any peripheral devices.

7. Turn on the computer.

8. When you see the prompt “Press DEL to enter Setup,” press the

It is important to store your CMOS settings before you install a new battery. To safeguard these settings, write them down, make a print screen of each CMOS setup page, or use a third-party CMOS rescue software to store the settings in a file on a write-protected diskette.

WARNING:

mistreated. Use only replacement batteries supplied by Compaq Computer Corporation

WARNING:

plug is an important safety feature. To avoid risk of electrical shock or damage to the equipment, do not disable this feature.

Setup Utility to reset the date and time and automatically reconfigure your system.

The system board contains a clock/CMOS lithium battery. The lithium battery may explode if

This equipment is designed for connection to a grounded (earthed) outlet. The grounding type

Delete

key to run the CMOS

Figure 5-19.

Replacing the Battery

Compaq Deskpro 1000 Series of Personal Computers 5-23

5.19 Mass Storage Devices

This section discusses the removal and replacement procedures on the Compaq Deskpro 1000 Series of Personal Computers.

For information on installing an additional hard drive using cable-select technology, refer to Appendix C, “Hard Drives.”

5.19.1 Drive Positions

The Compaq Deskpro 1000 Series of Personal Computers supports up to five drives, including:

One external 3.5-inch third-height diskette drive

One internal 3.5-inch third-height bay for an optional hard drive

One internal 3.5-inch third-height hard drive

One external 5.25-inch half-height bay for optional drive

Figure 5-20.

5-24 Removal and Replacement Procedures

Drive Bay Positions

5.19.2 Drive Cage

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

3. Disconnect the cables attached to the 3.5-inch hard drive and diskette drive in the drive cage.

4. Remove two screws from the top of the drive cage.

5. Slide the drive cage to the rear about one inch allowing the front of the cage to clear the bezel, then lift the cage out of the chassis.

Figure 5-21.

Removing the Drive Cage

To replace the drive cage, reverse the previous procedure.

Compaq Deskpro 1000 Series of Personal Computers 5-25

5.19.3 3.5-Inch Drive

Before beginning the removal procedure, ensure that all removal media have been removed from the drive.

CAUTION:

during the reassembly process. Improper cable placement can damage the computer.

When servicing this computer, ensure that the cables are placed in their proper locations

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

3. Remove the drive cage (Section 5.19.2).

4. Remove the two screws on each side of the drive (four total) that secure the drive in the drive cage.

5. Pull the 3.5-inch drive straight out of the drive cage.

Figure 5-22.

Removing a 3.5-Inch Hard Drive from the Drive Cage

To replace the 3.5-inch drive, reverse the previous procedure.

5-26 Removal and Replacement Procedures

5.19.4 5.25-Inch Drive

Before installing a 5.25-inch drive into a bay that has never been used, remove the metal breakaway plate covering the 5.25-inch bay. Bend the metal plate back and forth until it breaks free of the chassis.

CAUTION:

during the reassembly process. Improper cable placement can damage the computer.

When servicing this computer, ensure that the cables are placed in their proper locations

1. Perform preparation procedures (Section 5.4).

2. Remove the system unit cover (Section 5.5).

3. Remove the front bezel (Section 5.13).

4. Remove the drive cage (Section 5.19.2).

5. Insert the drive into the 5.25-inch bay from the front and secure it with two screws (four total) on each side of the drive.

6. Connect the cables to the rear of the 5.25-inch drive and the system board.

7. Reinstall the 3.5-inch drive cage and reconnect the drive cables.

Figure 5-23.

Removing a 5.25-Inch Drive

To remove the 5.25-inch device, reverse the previous procedure.

Compaq Deskpro 1000 Series of Personal Computers 5-27

chapter

UMPER INFORMATION

This chapter provides information for system board jumpers and hard drives for the Compaq Deskpro 1000 Series of Personal Computers.

6.1 System Board Jumpers

This section provides information for setting jumpers that enable/disable passwords and clear the configuration (CMOS). When you change a security feature, you will need to reset a jumper and reconfigure the computer to recognize this change. If the system configuration is incorrect, your computer may not work properly and you may receive error messages on the screen. Setting the system board jumpers are part of the reconfiguration process, along with running the Computer Setup (CMOS) utility.

✎

Jumpers are used to select the operation modes for your computer. To set a jumper, a black cap containing metal contacts is placed over the jumper pins according to the required configuration. A jumper is shorted when the cap is placed on two of its pins.

To change the system board jumpers, you must remove the computer system unit cover. For procedures on removing the computer system unit cover, refer to Chapter 5, “Removal and Replacement Procedures.”

CAUTION: Be sure to turn off the computer before changing a jumper setting, or damage to the system board can result.

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

components to cool before touching.

Compaq Deskpro 1000 Series of Personal Computers 6-1

Figure 6-1.

Locating the Jumpers

Table 6-1

System Board Jumpers

System

Function Description

Board ID

CPW Clear Password Allows you to set the password configuration to

enabled or disabled. You may need to enable this jumper if you forget your password.

EP1, EP2 Flash EPROM Type

Selection

CLK1, CLK2,

CLK3 FREQ1,

FREQ2, FREQ3

SRAM CPU to SRAM Data

CPU External Clock (BUS) Frequency

CPU to Bus Frequency Ratio

Transacting Mode Selection

Allows you to configure the Flash EPROM chip.

Allows you to set the different CPU speed configurations

Used in conjunction with CLK1, CLK2, and CLK3 to decide the ratio of the internal frequency of the CPU to the bus clock.

Allows you to select the CPU to SRAM data read/write mode.

6-2 Jumper Information

6.1.1 Power-On Password Jumpers (CPW)

If you forget your password, you cannot access the computer. You will need to disable the User Password feature by setting the appropriate jumper on the system board. You will then be able to access your computer.

1. Turn off the computer and any external devices.

2. Disconnect the power cord from the power outlet and any external devices from the computer.

3. Remove the computer cover.

4. Locate Jumper CPW.

Figure 6-2.

Locating the Password Jumper on the System Board

5. Remove the jumper from the single pin and reinstall it over both pins.

6. Leave the jumper on for approximately 60 seconds.

7. Remove the jumper from both pins and reinstall on a single pin.

8. Replace the computer cover.

9. Restart the computer.

Compaq Deskpro 1000 Series of Personal Computers 6-3

6.1.2 Flash EPROM Type Selection (EP)

The EP1 and EP2 jumpers allow you to configure the Flash EPROM chip:

Table 6-2

EPROM Type Selection

Flash EPROM EP1 Pin Pairs EP2 Pin Pairs

1M * 1-2 1-2 2M* 2-3 2-3 *Default

When flashing an Intel-manufactured EPROM, move the EP jumper from pins 1-2 to 2-3. After flashing is complete, return the jumper to pins 1-2.

To determine the EPROM manufacturer, locate the Award Flash EPROM chip located near the external battery. Lift the black-on-silver label; the manufacturer’s name is printed on the chip.

6.1.3 CPU External Clock (Bus) Frequency (CLK)

The CLK1, CLK2, and CLK3 jumpers allow you to set the different CPU speed configurations. Table 6-4 shows the jumper settings for the different bus speed configurations.

Table 6-3

CPU External Clock Frequency Settings

External (CPU/CLK) CLK1 Pin Pairs CLK2 Pin Pairs CLK3 Pin Pairs

66 MHz* 1-2 1-2 1-2 60 MHz 2-3 1-2 1-2 55 MHz 2-3 2-3 1-2 *Default setting.

6-4 Jumper Information

6.1.4 CPU to SRAM Data Transacting Mode Selection (SRAM)

The SRAM jumper allows you to select the CPU to SRAM data read/write mode.

Table 6-4

SRAM Pin Pairs

Mode Pin Pair

Intel Burst (Default) for Intel Pentium CPUs, AMDK%, Cyrix, IBM*

Linear Burst 2-3 *Default setting.

1-2

6.1.5 Jumper Settings

The following table identifies the jumper settings for each processor frequency for the Pentium with MMX Technology system boards:

CAUTION:

rated. Doing this could result in unreliable operation or processor damage.

CPU External CPU Clock Rate Speed

(MHz)

Pentium with MMX Technology

233 66 1-2 1-2 1-2 1-2 1-2 1-2 200 66 1-2 1-2 1-2 1-2 2-3 1-2 166* 66 1-2 1-2 1-2 2-3 2-3 1-2 *Default setting

✎

Refer to Table 6-1 for a description of the CLK and FREQ jumpers.

Do not configure the system board to operate faster than the speed at which the processor is

(CPU/CLK) (MHz) CLK1 CLK2 CLK3 FREQ1 FREQ2 FREQ3

6.1.6 Clearing Configuration

The computer's configuration (CMOS) may occasionally be corrupted. When it does, it is necessary to clear the CMOS memory.

Table 6-5 Pentium with MMX Technology System Board Jumper Settings

To clear and reset the configuration, run the CMOS Setup Utility described in Chapter 7, “Utilities.”

6.1.7 Changing the Real-Time Clock (RTC) Battery

Refer to Chapter 5, “Removal and Replacement Procedures,” for complete instructions on installing a replacement RTC battery.

Compaq Deskpro 1000 Series of Personal Computers 6-5

6.2 Hard Drives

For more information about Compaq hard drives, refer to Appendix C in this guide.

6.2.1 1.6-GB IDE Hard Drive Jumper Settings

The jumper settings for the 1.6-GB EIDE hard drive are shown below.

Figure 6-3.

1.6-GB EIDE Hard Drive Jumper Settings

Seagate EIDE

Drive Application Jumpers

Single drive 5 to 6 Primary drive 5 to 6 and 3 to 4 Secondary drive no connection Cable Select 3 to 4

Table 6.6

Hard Drive Jumper Settings

6-6 Jumper Information

chapter

TILITIES

7.1 CMOS Setup Utility

7.1.1 Using the CMOS Setup Utility

Execute the CMOS Setup Utility when you upgrade or repair the computer, change the battery, encounter a POST error, or choose to make a change to any of the default CMOS settings. To use the utility:

1. Turn the computer off, then on.

2. Press the Delete key when the message “Press DEL to enter Setup” appears on the screen.

3. Use the arrow keys to highlight the setup feature you want to change.

4. Press Enter to open the selected setup feature.

5. Use the arrow keys to highlight the value you want to change.

6. Use the Page Up or Page Down keys to change the selected value.

7. Press Esc to return to the main menu.

8. Follow the on-screen instructions to save the changes and exit or to exit the utility without saving any changes.

7.1.1.1 Safeguarding CMOS Settings

If you choose to change the default settings, you will want to restore those settings if the CMOS is ever corrupted or the battery loses power.

To safeguard these settings, write them down, make a print screen of each CMOS setup page, or use third-party CMOS rescue software to store the settings in a file on a write-protected diskette.

7.1.1.2 Restoring CMOS Settings

If you are able to access the CMOS Setup Utility, reload the BIOS defaults available in the CMOS Setup Utility or restore the safeguarded settings stored on the write-protected diskettes.

If you are unable to access the CMOS Setup Utility, remove the battery for about five minutes, then return it to restore the default settings. See Chapter 5, “Removal and Replacement Procedures.”

7.1.2 Important CMOS Settings

7.1.2.1 Standard CMOS Setup

You can change the following settings in Standard CMOS Setup:



Date and time



Floppy disk drive types for drive A: and B:

Compaq Deskpro 1000 Series of Personal Computers 7-1



Floppy mode support



Bootup video display mode



POST error handling selections



Hard disk configurations

✎

7.1.2.2 BIOS Features Setup

The BIOS features have already been preset at the factory, and users are advised not to run the BIOS and Chipset Features Setup programs. Improper setup may cause the system to fail.

You can set Hard Disk Type to Auto to automatically detect the drive type. However, if you choose to not use Auto, do a screen print screen or make a note of the hard disk configuration settings for every hard drive on your computer so that you can reenter these values if CMOS becomes corrupted.

7.1.3 Passwords

The supervisor and user passwords limit access to different functions of the computer. The supervisor password protects the system configuration settings from unauthorized

modification. The user password prevents unauthorized access to data stored on the computer or computer network.

Under the BIOS Feature Setup, you have the option to be prompted for a password every time you start the computer or only when you enter the CMOS Setup Utility. Select an option under the BIOS Feature Setup to be prompted for the:



Supervisor Password every time you try to start the CMOS Setup Utility and be prompted for the User Password every time you turn on the computer. Select System under the Security Option field.



User password only when you turn on the computer. Select Setup under the Security Option field.

7.1.3.1 Establishing a Password

1. From Setup, select the Supervisor Password or User Password option.

2. Enter the password.

3. You will be asked to confirm the password. Retype the password and press

✎

7.1.3.2 Entering a Password

When prompted, enter your current password.

✎

7.1.3.3 Disabling a Password

1. From Setup, select the Supervisor Password or User Password that you want to disable.

2. When you are prompted to enter the established password, press

7-2 Utilities

If necessary, you may press password.

Type carefully; for security reasons, the characters you type do not appear on the screen.

confirming the password is disabled.

Esc

to abort the password selection and not enter a

Enter.

A message appears

Enter

7.1.3.4 Changing a Password

To change a password, complete the following steps:

1. Disable the established password by pressing

2. Establish a new password by following the instructions in “Establishing a Password” in this chapter.

7.1.3.5 Clearing a Password

If you forget your password, you cannot access the computer. You will need to disable the password feature by setting the appropriate jumper on the system board. You will then be able to access your computer.

1. Turn off the computer and any external devices.

2. Disconnect the power cord from the power outlet and any external devices from the computer.

3. Remove the computer cover.

4. Locate Jumper CPW.

Enter

when prompted for the current password.

Figure 7-1.

5. Remove the jumper from the single pin and reinstall it over both pins.

6. Leave the jumper on for approximately 60 seconds.

7. Remove the jumper from both pins and reinstall on a single pin.

8. Replace the computer cover.

9. Restart the computer.

Locating the Password Jumper on the System Board

7.1.4 IDE HDD Auto Detection

The IDE HDD Auto Detection feature automatically configures the new hard drive, and allows you to set the parameters of up to four IDE hard drives. The option with (Y) is recommended by the system BIOS. You may also key in your own parameters instead of having the system BIOS set them for you. After modifying the settings, press the Esc key to return the main menu. For confirmation, enter the Standard CMOS Setup feature.

7.1.5 Save and Exit Setup

To save the changed CMOS settings:

Compaq Deskpro 1000 Series of Personal Computers 7-3

1. Press Esc to return to the main menu.

2. Press “Save and Exit Setup” The message “SAVE to CMOS and EXIT (Y/N)?” will appear at the center of the screen.

3. Press Y [

4. Press F10 (Save and Exit Setup) then press Y [

If you do not make any changes or if you want to cancel the changes you just made, see “Exit Without Saving,” in this chapter.

] to save the changes, or

Enter

7.1.6 Exit Without Saving

If you want to cancel the changes you made to CMOS:

1. Press Esc to return to the main menu.

2. Select “Exit Without Saving.” [Enter].The message “Quit Without Saving?” appears on the screen.

3. Press Y [Enter] to exit without saving the changes you just made.

7.2 Upgrading the BIOS

WARNING:

1. Create a bootable floppy diskette.

2. Place the bootable diskette containing the BIOS file and the Flash Utility in drive A, and reboot the system in MS-DOS (Version 6.22 is preferred).

Do not turn off or reset the computer during the flash process. It will corrupt the BIOS data.

Enter

3. At the A: prompt, type the Flash BIOS utility and the BIOS file with its extension. For example:

flash531 615J900.bin

4. At the Flash Memory Write menu:

To save the current BIOS settings, select Y then type the current BIOS name and the extension

after FILE NAME TO SAVE. For example:

613J900.bin If you do not want to save your current BIOS, select N.

5. Confirm the selection.

6. When the screen displays the message Power Off or Reset the System, remove the diskette, hold down the END key, and restart the system.

✎

You must depress the End key prior to power-on until you enter CMOS setup. If this is not done when restarting the system after upgrading the BIOS, the system will not start properly.

7.3 Configuring Windows Display and Monitor

When you first set up the computer and monitor, the Windows 95 operating system detects the monitor type, selects the best display configuration, and installs the appropriate display drivers.

7-4 Utilities

This automated setup is referred to as Plug and Play; there are no switches to set or manual procedures to follow; just plug it in.

✎

A monitor with Asset Control is required for the Plug and Play setup to work. If you do not have a Plug and Play monitor, you can set up the display manually.

7.3.1 Supported Resolutions

Resolutions supported by the graphics controller installed on the Compaq LGX Personal Computer are presented in Chapter 8, “Specifications.”

7.3.2 Changing Monitor Type Manually in Windows 95

If you are using Windows 95, the operating system automatically recognizes all Plug and Play monitors. If you are not using a Plug and Play monitor, select Display in the Control Panel and. follow the on-screen instructions to make the change.

7.3.3 Setting Graphics Resolution

The quality of the picture you see depends on the resolution of the monitor and the number of colors that are displayed. Although the setup utility automatically selects the display configuration, you can manually change the resolution to match a software program or to suit personal preferences. Select Display in the Control Panel and. follow the on-screen instructions to make the change.

7.3.4 Establishing a Password in Windows 95

To establish a password in Windows 95, complete the following steps:

1. Go to the Control Panel.

2. Double-click the Passwords icon and follow the instruction to set a new password.

7.4 Diagnostics Software

✎

Diagnostics software is not included with this computer. Compaq diagnostics software Version PC 10.25A, is available from your Compaq authorized dealer, reseller, or service provider, or the Compaq world-wide web site at WWW.COMPAQ.COM. Diagnostics software is also available from third-party diagnostics software provider.

Compaq Deskpro 1000 Series of Personal Computers 7-5

chapter

PECIFICATIONS

This chapter provides physical, environmental, and performance specifications for the computer, keyboard, and mass storage devices.

8.1 System

Dimensions

Height Width Length

Weight 10.40 kg 22.9 lb Power Supply

Operating Voltage Range Rated Voltage Range Rated Line Frequency

Rated Input Current (maximum) 3 A 6 A Power Output 200 W 200 W Environmental Requirements

Temperature

Operating Shipping

Humidity (noncondensing)

Operating Nonoperating

Maximum Altitude (unpressurized) Operating Nonoperating

Heat Dissipation (nominal) 3.23 kg-cal/min 770 Btu/hr

Table 8-1

System Specifications

Metric U. S.

16.51 cm

42.88 cm

41.28 cm

180-264 VAC 200-240 VAC 50 - 60 Hz

10° to 35°C

-20° to 60°C

8% to 90% 5% to 95%

3048 m 9144 m

6.5 in

16.88 in

16.25 in

90-132 VAC 100-120 VAC 50 - 60 Hz

50° to 95°F

-4° to 140°F

8% to 90% 5% to 95%

10,000 ft 30,000 ft

Compaq Deskpro 1000 Series of Personal Computers 8-1

Table 8-2

System Interrupts

Hardware IRQ System Function

IRQ 0 Timer Interrupt (Not on ISA Bus) IRQ 1 Keyboard (Not on ISA Bus) IRQ 2 Interrupt Controller Cascade (Not on ISA Bus) IRQ 3 Serial Port (COM 2) IRQ 4 Serial Port (COM 1) IRQ 5 Enhanced Business Audio* IRQ 6 Diskette Drive IRQ 7 Parallel Port (LPT 1) IRQ 8 Real-Time Clock (Not on ISA Bus) IRQ 9 Free for PCI Use IRQ 10 Free for PCI Use IRQ 11 PCI Interrupt IRQ 12 Mouse IRQ 13 Coprocessor (Not on ISA Bus) IRQ 14 IDE Interface (Hard Disk and Primary IDE Drive) IRQ 15 CD-ROM (Secondary IDE/Drive) *Default configuration; other configurations = IRQ7, IRQ9, IRQ10, None

Table 8-3

System DMA

Hardware DMA System Function

DMA 0 Unused DMA 1 Business Audio (Default; Alternate = DMA0, DMA3, None) DMA 2 Diskette Drive DMA 3 ECP Parallel Port LPT1 (Default; Alternate = DMA 0) DMA 4 DMA Controller Cascading (Not on ISA Bus) DMA 5 Unused DMA 6 Unused DMA 7 Unused

8-2 Specifications

Table 8-4

System I/O

I/O Address (Hex) * System Function (Shipping Configuration)

000 - 00F 8237 DMA Controller #1 020 - 02F 8259A Master Programmable Interrupt Controller 040 - 05F Programmable Internal Timer 060 - 06F Keyboard Controller 070 - 071 System CMOS/RTC, also NMI Enable/Disable 080 Manufacture System Check Point Port 081 - 09F DMA Page Registers 0A0 - 0BF Second 8259 Programmable Interrupt Controller 0C0 - 0DF DMA Controller #2 0F0 - 0FF Numeric Data Processor 170 – 17F Secondary IDE Controller 1F0 - 1FF Primary IDE Controller 200 Gameport (only if you have a sound card installed) 201 Gameport (only if you have a sound card installed) 278 - 27F Third Parallel Port 2E8 - 2EF COM4 (if you set COM4) 2F8 - 2FF COM2 370 - 377 Secondary Diskette Controller (if present)) 378 - 37F Second Parallel Port 3B0 - 3BF Monochrome Display Adapter/Primary Parallel Port 3C0 - 3CF EGA/VGA Adapter 3D0 - 3DF Color Graphic Adapter 3E8 - 3EF COM3 (if you set COM3) 3F0 - 3F7 Primary Diskette Controller 3F8 - 3FF COM1 04D0 - 04D1 PIC Edge/Level Control Register 0CF8 - 0CFF PCI Configuration Register 6000 - FFFF PCI Device I/O Space

*All I/O addresses below 100 are reserved by the chipset even if they are not used.

Compaq Deskpro 1000 Series of Personal Computers 8-3

Table 8-5

System Memory Map

Size* Memory Address (Hex) System Function

64 KB FFFFFFFFh to FFFF0000h System ROM 1504 MB FDFFFFFFh to A0000000h PCI Memory Expansion 510 MB 1FF00000h to 00100000h System Memory 64 K 000FFFFFh to 000F0000h System ROM 64 KB 000EFFFFh to 000E0000h Reserved 96 KB 000DFFFFh to 000C8000h Reserved 32 KB 000C7FFFh to 000C0000h Video ROM 128 KB 000BFFFFh to 000A0000h Video RAM 640 KB 0009FFFFh to 00000000h Base Memory *All memory above the first 256 MB is non-cacheable. All PCI memory is non-cacheable.

8-4 Specifications

8.2 Drives

Size and Capacity

Size (cm) Size (in) High Density (MB) Low Density (KB)

Light Green Height One-third Bytes per Sector 512 Sectors per Track

High Density Low Density

Tracks per Side

High Density Low Density

Read/Write Heads 2 Average Seek Time (Mb/s)

Track-to-Track (high/low) Average (high/low) Latency Average (ms)

Table 8-6

Diskette Drive

1.44 MB

8.9

3.5

1.44 720

18 9

80 80

3/3 94/94

100

Compaq Deskpro 1000 Series of Personal Computers 8-5

EIDE Hard Drive

1.6-GB

Formatted Capacity

Physical (MB) Logical (MB)

Compaq Spare Part Number 333816-001 Drive Type 65 Transfer Rate

Interface (Mbytes/sec) 16.7

Typical Seek Time (including settling)

Single Track (ms) Average (ms) Full Stroke (ms)

Disk Rotational Speed (rpm) 5400 Cylinders

Logical 3390

Data Heads

Logical 16

Sectors per Track

Logical 63

Buffer Size (KB) 128

1624.7

3.0

13.0

22.0

Table 8-7

8-6 Specifications

8.3 Mouse

Dimensions

Height Length Width

Weight 130 g 4.59 oz Base Resolution 400 dpi 400 dpi Tracking Speed (maximum) 25 cm/sec 10 in/sec Temperature

Operating Storage

Lifetime

Mechanical Switch

Relative Humidity 10% to 90%, noncondensing 10% to 90%, noncondensing ESD No soft errors through 10 kV;

Table 8-8

2-Button Mouse

Metric U.S.

3.4 cm

11.3 cm

6.0 cm

0°C to 40°C

-20°C to 60°C

Exceeds 483 km Exceeds 1 million operations

No hard errors through 15 kV; specific performance depends on host system

1.34 in

4.45 in

2.36 in

32°F to 104°F

-4°F to 140°F

Exceeds 300 miles Exceeds 1 million operations

8.4 Keyboard

Dimensions

Height Length Width

Weight 0.9 kg 1.98 lb

Table 8-9

Compaq Enhanced Keyboard

Metric U.S.

4.0 cm

45.6 cm

16.8 cm

1.58 in

17.95 in

6.63 in

Compaq Deskpro 1000 Series of Personal Computers 8-7

8.5 Supported Graphics Resolutions

Table 8-10

Supported Graphics Resolutions

S3 Trio64V2/DX Graphics Card

Resolution 1-MB DRAM 2-MB DRAM

1280 × 1024 16 @ 75 Hz 256 @ 75 Hz 1024 × 768 256 @ 85 Hz 64K @ 75 Hz 800 × 600 655K @ 85 Hz 16.7M @ 75 Hz 640 × 480 655K @ 85 Hz 16.7M @ 75 Hz

8-8 Specifications

appendix

ONNECTOR PIN ASSIGNMENTS

This appendix contains the pin assignments for all external connectors:

Connector Pin Signal

KEY

1 2 3 4 5 6

Table A-1 Keyboard

Data Unused Ground +5 VDC Clock Unused

Table A-2

Mouse

Connector Pin Signal

KEY

1 2 3 4 5 6

Data Unused Ground +5 VDC Clock Unused

Compaq Deskpro 1000 Series of Personal Computers A-1

Table A-3

Parallel Interface

Connector Pin Signal

13 12

11 10 89

2425

23 22 21 20

5643

1819 1617

15 14

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18-25

Strobe# Data Bit 0 Data Bit 1 Data Bit 2 Data Bit 3 Data Bit 4 Data Bit 5 Data Bit 6 Data Bit 7 Acknowledge# Busy Paper End Select Auto Linefeed# Error# Initialize Printer# Select IN# Signal Ground

Table A-4

Serial Interface

Connector Pin Signal

16283

2 3 4 5 6 7 8 9

Carrier Detect Receive Data# Transmit Data# Data Terminal Ready Signal Ground Data Set Ready Request to Send Clear to Send Ring Indicator

A-2 Connector Pin Assignments

Table A-5

VGA Monitor

Connector Pin Signal

123

13 12

15 14 11

*For DDC support (I2C monitors)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Red Analog Green Analog Blue Analog Monitor ID Bit2 Ground Ground Analog Ground Analog Ground Analog Not Connected Ground Monitor ID Bit 0 Bidirectional Data (SDA)* Horizontal Sync Vertical Sync Data Clock (SCL)*

Table A-6

USB Connector

Connector Pin Signal

1234

1 2 3 4

VCC

- Data + Data Ground

Compaq Deskpro 1000 Series of Personal Computers A-3

Table A-7

IDE Drive Cable

Pin Signal Pin Signal

1 RESDRV 26 GND 2 GND 27 IOCHRDY 3 D07 28 CABLE SELECT 4 D08 29 DAK 5 D06 30 GND 6 D09 31 IRQ 7 D05 32 IO16 8 D10 33 A1 9 D04 34 PDIAG 10 D11 35 A0 11 D03 36 A2 12 D12 37 CS1FX 13 D02 38 CS3FX 14 D13 39 DASP 15 D01 40 GND 16 D14 41 AUDIO_R 17 D00 42 AUDIO_L 18 D15 43 A_GND_R 19 GND 44 A_GND_L 20 (KEY) 45 +5VMOT1 21 DREQ 46 +5VMOT2 22 GND 47 +5VMOT3 23 IOW 48 +5VMOT4 24 GND 49 +5VMLOG1 25 IOR 50 +5VMLOG2

A-4 Connector Pin Assignments

appendix

OWER CORD SET REQUIREMENTS

The voltage select switch feature on the computer permits it to operate from any line voltage between 100-120 or 220-240 volts AC.

The power cord set received with the computer meets the requirements for use in the country where you purchased the equipment.

Power cord sets for use in other countries must meet the requirements of the country where you use the computer. For more information on power cord set requirements, contact your authorized Compaq dealer, reseller, or service provider.

General Requirements

The requirements listed below are applicable to all countries:

1. The length of the power cord set must be at least 1.8 m (6.00 feet) and a maximum of

3.0 m (9.75 feet).

2. All power cord sets must be approved by an acceptable accredited agency responsible for evaluation in the country where the power cord set will be used.

3. The power cord set must have a minimum current capacity of 10A and a nominal voltage rating of 125 or 250 volts AC, as required by each country’s power system.

4. The appliance coupler must meet the mechanical configuration of an EN 60 320/IEC 320 Standard Sheet C13 connector, for mating with appliance inlet on the Switch Box.

Compaq Deskpro 1000 Series of Personal Computers B-1

Country-Specific Requirements

Power Cord Set Requirements—By Country

Country Accredited Agency Applicable Note Numbers

Australia EANSW 1 Austria OVE 1 Belgium CEBC 1 Canada CSA 2 Denmark DEMKO 1 Finland SETI 1 France UTE 1 Germany VDE 1 Italy IMQ 1 Japan MITI 3 Norway NEMKO 1 Sweden SEMKO 1 Switzerland SEV 1 United Kingdom BSI 1 United States UL 2

NOTES:

1. The flexible cord must be <HAR> Type HO5VV-F, 3-conductor, 1.0 mm

conductor size. Power cord set fittings (appliance coupler and wall plug) must bear the certification mark of the agency responsible for evaluation in the country where it will be used.

2. The flexible cord must be Type SJT or equivalent, No. 18 AWG, 3-conductor. The wall plug must be a two-pole grounding type with a NEMA 5-15P (15A, 125V) or NEMA 6-15P (15A 250V) configuration.

3. The appliance coupler, flexible cord, and wall plug must bear a "T" mark and registration number in accordance with the Japanese Dentori Law. The flexible cord must be Type VCT or VCTF, 3-conductor, 0.75 mm

conductor size. The wall plug must be a two-pole grounding

type with a Japanese Industrial Standard C8303 (15A, 125V) configuration.

B-2 Power Cord Set Requirements

appendix

ARD DRIVES

Compaq Computer Corporation uses IDE hard disk drives that conform to two different primary/secondary implementations. These are Conner mode and ATA-compatible mode. These two modes are incompatible with one another.

Device 0/Device 1 Relationship

A device 0/device 1 relationship exists when there are two hard drives connected to a single port. In this situation, one drive must be designated as the device 0, or primary, drive and the other as the device 1, or secondary, drive. This designation is necessary because both drives cannot work simultaneously.

Cable Select

The Compaq Deskpro 1000 Series of Personal Computers uses cable-select technology for identifying Device 0 (primary) and Device 1 (secondary) IDE hard drives. Check that the jumpers on the IDE hard drive are set properly for cable-select installation. Always check the label on the drives or check Chapter 6 of this manual when a new drive is added to verify that the jumper settings are set correctly.



Cable select may not function properly if drives other than those supported by Compaq are installed.



The second drive on a cable-select cable can be a CD-ROM drive. However, the CD-ROM drive must be installed in the device 1 position if a hard drive is installed on the same cable. Ensure that both drives are set for cable-select configuration. See Chapter 6 for more information.



If two drives are already connected to the primary IDE controller and an additional drive is to be installed, the secondary IDE controller must be enabled. The secondary IDE controller can be enabled by checking this option after opening the Advanced box in the Mass Storage group of F10 Computer Setup. See Chapter 7 for more information.



When more than two drives are installed, drive performances are best when the two faster drives are connected to the primary IDE controller and the slower drive is connected to the secondary IDE controller.



A hard drive is installed and configured more quickly when it has first been formatted.



If your new drive includes the cable-select feature, no jumper setting changes are required. Refer to the documentation supplied with the cable for instructions on using the cable select feature. If you install a third-party hard drive, you will need to purchase a jumper cable (spare part number 247568-001) from Compaq Computer Corporation.

IntelliSafe - SMART

The IntelliSafe IDE hard drives for the Compaq Deskpro 1000 Series of Personal Computers have built-in drive failure prediction that warns the user or the network administrator of an impending failure or crash of the hard drive.

Compaq Deskpro 1000 Series of Personal Computers C-1

Automatic Soft-Drive Types

An automatic soft-drive type is a mechanism where the system ROM and Computer Setup provide support for IDE hard drives that are not supported in the hard drive parameter table. Computer Setup automatically builds a soft-drive type when it finds that a hard drive is not in the hard drive parameter table.

The soft-drive types assign according to the table below:

Table C-1

Soft-Drive Type Assignments

Drive Hard Drive Type Controller

0 65 Primary 1 66 Primary 0 68 Secondary 1 15 Secondary

For hard drives that are greater than 528 MB, the system automatically translates the hard drive parameter for DOS by logically halving the cylinders and doubling the heads. This allows DOS to access greater than 528 MB. The translated hard drive parameters are put into the hard drive parameter table in the shadow RAM copy of the system ROM. When using any operating system other than DOS, you must use the Compaq User Diagnostic diskette to set up the hard drive parameter table without translation.

C-2 Hard Drives

Alt key, 1-8 architecture, 1-3

battery

internal, 1-4

bezel

illustrated, 3-2 spare part number, 3-2

BIOS

features setup, 7-2 upgrading, 7-4

boxes, shipping, 3-9

cable select

description, C-1

cables, 4-5

and connectors, 4-5 illustrated, 3-4 removal and replacement,

C-1

spare part numbers, 3-4 cache, 1-3 CD-ROM cable

connector pin assignments,

A-4

CD-ROM drive

troubleshooting, 2-12 chassis

illustrated, 3-2 chipset, 1-3 clearing configuration, 6-5 clearing the password, 2-5 CMOS settings

restoring, 7-1

safeguarding, 7-1 CMOS setup

exit without saving, 7-4

IDE HDD auto detection, 7-3

save and exit setup, 7-3

Index

standard settings, 7-1

CMOS Setup Utility, 2-4, 7-1

using, 7-1

Computer Checkup (TEST),

2-5

connector pin assignments

CD-ROM cable, A-4

USB, A-3 connectors, 4-5, A-1 connectors, rear panel, 1-7 controls

front panel, 1-5 CPU External Clock

Frequency Settings, 6-4 Ctrl key, 1-8

design overview, 1-4 device 0/device 1 relationship,

C-1 diagnostics

running, 2-5 DIMM

installing, 5-12 disassembly/assembly

sequence, 5-2 diskette drive

eject button, 1-5

optional, 1-3

standard, 1-3

troubleshooting, 2-7 display

troubleshooting, 2-8 documentation, viii documentation, spare part

numbers, 3-9 drive bay bezel

illustrated, 3-2 drive bays, 1-3 drive cage

removal, 5-25

spare part number, 3-2 drive positions, 1-6

electrostatic damage,

preventing, 4-2 electrostatic discharge, 4-1 enhanced keyboard, 1-4 EP

Flash EPROM, 6-4 error messages, 2-2 ESD, 4-1 expansion slots, 1-3, 5-4

fan

power supply, 1-4 features, 1-3 flash EPROM, 6-4 front bezel

illustrated, 3-2

spare part number, 3-2

generating static, 4-1 graphics

resolutions, 1-3

setting resolution, 7-5 graphics memory board

spare part number, 3-5 grounding

electrical, viii

equipment, 4-3

methods, 4-2

workstations, 4-3

hard drive

IntelliSafe, C-1

optional, 1-3

soft-drive type assignments,

C-2 standard, 1-3 troubleshooting, 2-10

hardware

Index I-1

troubleshooting, 2-11

hardware installation

troubleshooting, 2-11

I/O ports, 1-3 Illustrated Parts Map, viii information, locating

additional, viii

IntelliSafe, C-1

jumper

CLK, 6-4 CPW, 6-3 EP, 6-4 password, 6-3

SRAM, 6-5 jumper cable, C-1 jumper locations

1.62-GB IDE hard drive, 6-6

jumper settings

1.62-GB IDE hard drive, 6-6

system board, 6-5 jumpers

system board, 6-1

keyboard, 1-8 keyboard

connector, A-1

enhanced, 1-4, 1-8

illustrated, 3-6

spare part numbers, 3-6

LED Cables, 5-20 LEDs, 1-5

illustrated, 3-4

map, spare parts, viii mass storage devices

removal, 5-24

spare part numbers, 3-3 materials, static preventing,

4-4 memory

configuration, 5-10

DIMM, 1-3 installing DIMM, 5-12 installing SIMM, 5-11 SIMM, 1-3 troubleshooting, 2-12

miscellaneous hardware

spare parts, 3-7

miscellaneous plastics

illustrated, 3-8

spare part number, 3-8 models, 1-2 monitors

connector pin assignments,

A-3

mouse, 1-4

connector pin assignments,

A-1

operating system

standard, 1-4

parallel interface pin

assignments, A-2 password

changing, 7-3

clearing, 7-3

disabling, 7-2

entering, 7-2

establishing, 7-2

supervisor, 7-2

user, 7-2 pin assignments

CD-ROM cable, A-4

keyboard connector, A-1

mouse connector, A-1

parallel interface connector,

A-2 serial interface, A-2 USB, A-3 VGA monitor connector, A-3

plastic parts, 4-5 Plug and Play

problems, 2-11

power

troubleshooting, 2-6

power cord set requirements

by country, B-2 general, B-1

power supply, 1-4

illustrated, 3-2

spare part number, 3-2 power switch, 1-5 Power-On Self-Test (POST)

function, 2-1

messages, 2-2 preloaded software, 1-5 preparation for disassembly,

5-3 preventing electrostatic

damage, 4-2 printer

troubleshooting, 2-9 processor, 1-3

spare part number, 3-5

QuickFind, viii

rear panel connectors, 1-7 removal and replacement

procedures, 5-1 remove

3.5-inch drive, 5-26

5.25-inch drive, 5-27

battery, 5-23

bezel blank, 5-22

drive cage, 5-25

expansion board guide, 5-6

expansion boards, 5-4

feet, 5-3

front bezel assembly, 5-18

graphics memory, 5-8

LED cables, 5-20

LED retainer assembly, 5-19

mass storage devices, 5-24

memory modules, 5-9

microprocessor, 5-14, 5-16

power button, 5-21

power supply, 5-13

system board, 5-7

system unit cover, 5-4 repair warning, viii resolutions supported, 7-5 ROM BIOS, 1-3

Safety & Comfort guide, viii screws, 4-5 serial

number, viii

I-2 Index

serial interface

pin assignments, A-2 serial number, 5-1 service considerations, 4-4 setup password, 7-2

changing, 7-3

clearing, 7-3

disabling, 7-2

entering, 7-2

establishing, 7-2 shipping boxes

spare part numbers, 3-9 SIMM

installing, 5-11

spare part number, 3-5 soft-drive type assignments,

C-2 software

preloaded, 1-5

required for service, 4-4 spare parts

map, viii speaker

internal, 1-4 SRAM

CPU to SRAM data

transacting mode selection, 6-5

standard and optional boards

spare parts, 3-5 static shielding protection

levels, 4-2 static, generating, 4-1 supervisor password, 7-2 supported resolutions, 7-5 switch settings, 6-5 symbols, vii system

design, 1-4

serial number, viii system board jumpers, 6-1

CLK, 6-4

CPW, 6-3

EP, 6-4

locating, 6-2

SRAM, 6-5 system memory

configuration, 5-10 system unit

illustrated, 3-2

spare part numbers, 3-2

Technical Reference Guide,

viii tools required for service, 4-4 troubleshooting without

diagnostics

CD-ROM, 2-12

diskette drive, 2-7

display, 2-8

hard drive, 2-10

hardware installation, 2-11

memory, 2-12

minor problems, 2-5

power, 2-6

printer, 2-9 typical electrostatic voltages,

4-1

unit cover

illustrated, 3-2 Upgrading the BIOS, 7-4 USB connector pin

assignments, A-3 user password, 7-2

ventilation, viii voltages, typical electrostatic,

4-1

Windows

configuring display, 7-4

Logo key, 1-8

Index I-3

Compaq DESKPRO 1000 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Notice

Contents iii

preface

Symbols and Conventions

Technician Note

System Serial Number

Locating Additional Information

1.1 Compaq Deskpro 1000 Series of Personal Computer Models

1.2 Features

1.3 System Design

1.4 Preloaded Software

1.5 Computer Features

1.6 Enhanced Keyboard

2.1 Power-On Self Test (POST)

2.2 CMOS Setup Utility

2.3 Troubleshooting Without Diagnostics

3.1 System Unit

3.2 Mass Storage Devices

3.3 Cables

3.4 Standard and Optional Boards

3.5 Keyboards

3.6 Miscellaneous Hardware Kit

3.7 Miscellaneous Plastics Kit

3.8 Miscellaneous Parts

3.9 Shipping Boxes

3.10 Documentation

4.1 Electrostatic Discharge Information

4.2 Service Considerations

5.1 Serial Number

5.2 Disassembly/Assembly Sequence

5.3 Feet

5.4 Preparation for Disassembly

5.5 System Unit Cover

5.6 Expansion Board

5.7 Expansion Board Guide

5.8 System Board

5.9 Graphics Memory

5.10 Memory Modules

5.11 Power Supply

5.12 Microprocessor

5.13 Front Bezel Assembly

5.14 LED Retainer Assembly

5.15 LED Cables

5.16 Power Button

5.17 Bezel Blank

5.18 Replacement Battery

5.19 Mass Storage Devices

6.1 System Board Jumpers

6.2 Hard Drives

7.1 CMOS Setup Utility

7.2 Upgrading the BIOS

7.3 Configuring Windows Display and Monitor

7.4 Diagnostics Software

8.1 System

8.2 Drives

8.3 Mouse

8.4 Keyboard

8.5 Supported Graphics Resolutions