Compaq evo n1005, presario 900 schematic

Maintenance and Service Guide

Compaq Evo Notebook N1005 Series and Compaq Presario 900 Series Mobile PC

Document Part Number: 272638-001

July 2002

This guide is a troubleshooting reference used for maintaining and servicing the notebook. It provides comprehensive information on identifying computer features, components, and spare parts, troubleshooting computer problems, and performing computer disassembly procedures.

Compaq, the Compaq logo, Evo, and Presario are trademarks of Compaq Information Technologies Group, L.P. in the U.S. and/or other countries.

Microsoft and Windows are trademarks of Microsoft Corporation in the U.S. and/or other countries.

AMD, Athlon, and Duron are trademarks of the AMD Corporation in the U.S. and/or other countries.

All other product names mentioned herein may be trademarks of their respective companies.

Compaq shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is provided “as is” without warranty of any kind and is subject to change without notice. The warranties for Compaq products are set forth in the express limited warranty statements accompanying such products. Nothing herein should be construed as constituting an additional warranty.

Maintenance and Service Guide First Edition July 2002 Document Part Number: 272638-001

1 Product Description

1.1 Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2

1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–8

1.3 Clearing a Password. . . . . . . . . . . . . . . . . . . . . . . . . 1–10

1.4 Power Management . . . . . . . . . . . . . . . . . . . . . . . . . 1–11

1.5 Computer External Components . . . . . . . . . . . . . . . 1–12

1.6 Design Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–22

2 Troubleshooting

2.1 Computer Setup and Diagnostics Utilities . . . . . . . . . 2–1

Selecting Computer Setup or Compaq Diagnostics . 2–1

Selecting from the File Menu . . . . . . . . . . . . . . . . . . 2–3

Selecting from the Security Menu. . . . . . . . . . . . . . . 2–4

Selecting from the Advanced Menu . . . . . . . . . . . . . 2–5

2.2 Using Compaq Diagnostics . . . . . . . . . . . . . . . . . . . . 2–7

Obtaining, Saving, or Printing

Configuration Information. . . . . . . . . . . . . . . . . . . . . 2–7

Obtaining, Saving, or Printing Diagnostic

Test Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–8

2.3 Troubleshooting Flowcharts. . . . . . . . . . . . . . . . . . . 2–10

Maintenance and Service Guide iii

Contents

3 Illustrated Parts Catalog

3.1 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . 3–1

3.2 Computer System Major Components. . . . . . . . . . . . 3–2

3.3 Miscellaneous Plastics/Hardware Kit . . . . . . . . . . . 3–10

3.4 Miscellaneous Cable Kit . . . . . . . . . . . . . . . . . . . . . 3–12

3.5 Mass Storage Devices . . . . . . . . . . . . . . . . . . . . . . . 3–13

3.6 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–14

4 Removal and Replacement Preliminaries

4.1 Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1

4.2 Service Considerations. . . . . . . . . . . . . . . . . . . . . . . . 4–2

Plastic Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2

Cables and Connectors . . . . . . . . . . . . . . . . . . . . . . . 4–2

4.3 Preventing Damage to Removable Drives . . . . . . . . . 4–3

4.4 Preventing Electrostatic Damage . . . . . . . . . . . . . . . . 4–4

4.5 Packaging and Transporting Precautions . . . . . . . . . . 4–4

4.6 Workstation Precautions . . . . . . . . . . . . . . . . . . . . . . 4–5

4.7 Grounding Equipment and Methods . . . . . . . . . . . . . 4–6

5 Removal and Replacement Procedures

5.1 Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2

5.2 Disassembly Sequence Chart . . . . . . . . . . . . . . . . . . . 5–3

5.3 Preparing the Computer for Disassembly . . . . . . . . . 5–4

5.4 Computer Feet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–12

5.5 Memory Expansion Board . . . . . . . . . . . . . . . . . . . . 5–12

5.6 Mini PCI Communications Board . . . . . . . . . . . . . . 5–14

5.7 Disk Cell RTC Battery. . . . . . . . . . . . . . . . . . . . . . . 5–17

5.8 Connector Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–18

5.9 LED Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–19

5.10 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–21

5.11 Heat Spreader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–24

5.12 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–29

5.13 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–31

5.14 Palm Rest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–36

5.15 Diskette Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–39

iv Maintenance and Service Guide

5.16 TouchPad Components . . . . . . . . . . . . . . . . . . . . . 5–41

5.17 Display Release Assembly. . . . . . . . . . . . . . . . . . . 5–43

5.18 Charger Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–44

5.19 Speaker Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 5–46

5.20 Top Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–48

5.21 Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–52

5.22 System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–54

5.23 Modem Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–58

6 Specifications

A Connector Pin Assignments

B Power Cord Set Requirements

3-Conductor Power Cord Set . . . . . . . . . . . . . . . . . . . . . . B–1

General Requirements . . . . . . . . . . . . . . . . . . . . . . . . B–1

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

C Screw Listing

Contents

Index

Maintenance and Service Guide v

Product Description

The Compaq Evo Notebook N1005 and Presario 900 Series of Personal Computers offer advanced modularity, AMD Athlon and Duron processors, industry-leading Accelerated Graphics Port (AGP) implementation, and extensive multimedia support.

Figure 1-1. Compaq Evo Notebook N1005 and Presario 900 Series

Maintenance and Service Guide 1–1

Product Description

1.1 Models

Computer models are shown in Tables 1-1 through 1-3.

Table 1-1

Compaq Evo Notebook N1005 and Presario 900

Model Naming Conventions

Key

P900 P 220 P5 40 V C 51 O XXXXXX-XXX

123456789 10

Key Description Options

1 Brand/Series

designator

2 Processor type A = AMD Athlon XP+ D = AMD Duron

3 Processor speed 153 = 1.53 GHz

4Display type/

size/resolution

5 Hard drive size 40 = 40 GB

6 Optical drive

designator

7 Integrated

communication

8 RAM 51 = 512 MB 25 = 256 MB

9 Operating system O = Windows XP Pro E = Windows XP

10 SKU#

E = Evo P = Presario

147 = 1.47 GHz 140 = 1.40 GHz

X = XGA (1024 × 768)

30 = 30 GB

V = DVD-ROM drive W = DVD-RW drive

M = Modem 0 = None

1005 = 1005 Series 900 = 900 Series

130 = 1.30 GHz 120 = 1.20 GHz

5 = 15.x-inch 4 = 14.x-inch

20 = 20 MB

D = CD-ROM drive R = CD-RW drive

C = Modem/NIC

combination card

Home

1–2 Maintenance and Service Guide

Product Description

Table 1-2

Compaq Evo Notebook N1005 Series Models

The following Evo Notebook N1005 Series models use config. code KSXZ and features:

■

TouchPad

■

8-cell, 4.0-Ah lithium ion (Li ion) battery pack

■

2-year warranty

■

diskette drive

E1005 A 153 X5 30 W C 25 O 1

German 470041-860

E1005 A 147 X4 20 V C 25 O 1

German 470041-859

Maintenance and Service Guide 1–3

Product Description

Table 1-2

Compaq Evo Notebook N1005 Series Models

The following Evo Notebook N1005 Series models use config. code KSBZ and feature:

■

TouchPad

■

8-cell, 4.0-Ah lithium ion (Li ion) battery pack

■

1-year warranty

■

diskette drive

E1005 A 153 X5 30 W C 25 O

(Continued)

Belgium Czech Republic Denmark European

International France Greece/Poland Hungary Israel Italy The Netherlands

470041-815 470041-818 470041-819 470041-822

470041-823 470041-826 470041-827 470041-830 470041-831 470041-834

Norway Portugal Russian Saudi Arabia Slovenia Spain Sweden/Finland Switzerland Tu r ke y United Kingdom

E1005 A 147 X4 20 V C 25 O

Belgium Czech Republic Denmark European

International France Greece/Poland Hungary Israel Italy The Netherlands

470041-816 470041-817 470041-820 470041-821

470041-824 470041-825 470041-828 470041-829 470041-832 470041-833

Norway Portugal Russia Saudi Arabia Slovenia Spain Sweden/Finland Switzerland Tu r ke y United Kingdom

470041-835 470041-838 470041-839 470041-814 470041-842 470041-843 470041-846 470041-848 470041-851 470041-852

470041-836 470041-837 470041-840 470041-813 470041-841 470041-844 470041-845 470041-849 470041-850 470041-853

1–4 Maintenance and Service Guide

Product Description

Table 1-3

Compaq Presario 900 Series Mobile PC Models

The following Presario 900 Series Mobile PC models use config. code KSXZ and features:

■

TouchPad

■

8-cell, 4.0-Ah lithium ion (Li ion) battery pack

■

2-year warranty

■

diskette drive

P905 A 153 X5 30 W C 25 E

Belgium Denmark Germany Italy The Netherlands

470036-882 470036-883 470037-069 470037-072 470037-075

Norway Portugal Spain Sweden/Finland

P904 A 153 X4 20 W C 25 E

Belgium Denmark Germany Italy The Netherlands

470038-081 470038-082 470038-083 470038-084 470038-085

Norway Portugal Spain Sweden/Finland

P902 A 130 X5 30 W C 25 E

Belgium Denmark Germany Italy The Netherlands

470037-046 470037-068 470037-071 470037-074 470037-077

Norway Portugal Spain Sweden/Finland

P901 A 120 X5 20 W C 25 E

Belgium Denmark Germany Italy The Netherlands

470037-045 470037-067 470037-070 470037-073 470037-076

Norway Portugal Spain Sweden/Finland

470037-078 470037-517 470037-521 470037-083

470038-086 470038-087 470038-088 470038-089

470037-080 470037-516 470037-520 470037-081

470037-079 470037-515 470037-519 470037-082

Maintenance and Service Guide 1–5

Product Description

Table 1-3

Compaq Presario 900 Series Mobile PC Models

The following Presario 900 Series Mobile PC model uses config. code KSB1 and features:

■

TouchPad

■

8-cell, 4.0-Ah lithium ion (Li ion) battery pack

■

1-year warranty

■

diskette drive

P900 A 147 X5 30 W C 25 E

United States 470037-278

The following Presario 900 Series Mobile PC model uses config. code KSB2 and features:

■

TouchPad

■

8-cell, 4.0-Ah lithium ion (Li ion) battery pack

■

1-year warranty

■

diskette drive

P904 A 130 X5 20 W C 51 E

United States 470038-539

(Continued)

The following Presario 900 Series Mobile PC models use config. code KSXZ and features:

■

TouchPad

■

8-cell, 4.0-Ah lithium ion (Li ion) battery pack

■

1-year warranty

■

diskette drive

P905 A 153 X5 30 W C 25 E

European

International France Germany Hungary Israel

470037-133 470037-134 470037-138 470040-102 470037-305

Russia Saudi Arabia Switzerland Tu r ke y United Kingdom

470037-140 470037-127 470037-345 470037-151 470037-152

P906 A 153 X5 30 W C 25 O

European

470039-301

International

1–6 Maintenance and Service Guide

Table 1-3

Compaq Presario 900 Series Mobile PC Models

P905 A 153 X4 30 W C 25 E

Australia/New Zealand 470037-311

P904 A 153 X4 20 W C 25 E

Product Description

(Continued)

European

International France Germany Israel

P903 A 153 X4 20 W C 25 E

Korea 470038-111

P905 A 153 X4 20 V C 25 E

Asia Pacific Australia/New Zealand

P900 A 147 X5 30 W C 25 E

Canada English 470037-117 French Canada 470037-279

P905 A 147 X5 30 W C 25 E

Brazil Hong Kong Latin America

P902 A 130 X5 30 W C 25 E

European

International France Germany Israel

P902 A 130 X5 20 W C 25 E

470038-102 470038-103 470038-104 470038-105

470037-313 470037-310

470037-309 470037-289 470037-277

470037-132

470037-135 470037-137 470037-304

Russia Saudi Arabia Switzerland Tu r ke y United Kingdom

Korea Thailand

Latin America

(NAFTA)

Ta i wa n

Russia Saudi Arabia Switzerland Tu r ke y United Kingdom

470038-106 470038-101 470038-107 470038-108 470038-109

470037-312 470037-314

470037-288

470037-315

470037-141 470037-126 470037-344 470037-150 470037-153

France 470040-350

P902 A 130 X4 20 V C 25 E

Australia/New Zealand 470038-110

Maintenance and Service Guide 1–7

Product Description

Table 1-3

Compaq Presario 900 Series Mobile PC Models

P901 A 120 X5 20 W C 25 E

(Continued)

European

International France Germany Israel

P900 A 120 X4 20 D C 12 E

Asia Pacific Australia/New Zealand

470037-131 470037-136 470037-120 470037-303

470040-356 470040-354

Russia Saudi Arabia Switzerland Tu r ke y United Kingdom

Korea Thailand

1.2 Features

The notebook has the following features:

■

AMD Athlon XP+ 1.53-, 1.47-, 1.40-, 1.30-, or 1.20-GHz processors, or AMD Duron 1.30-GHz processor, varying by notebook model

■

ATI P7 graphics accelerator with 32 MB of shared Synchronous DRAM (SDRAM) and 4X AGP graphics card

■

256-MB high-performance SDRAM, expandable to 1.0 GB

■

Microsoft Windows XP Home or Windows XP Professional, varying by computer model

■

15.0- or 14.1-inch XGA (1024 × 768), TFT display with over

16.7 million colors, varying by computer model

470037-142 470037-122 470037-343 470037-149 470037-154

470040-357 470040-355

■

Full-size Windows 98 keyboard with TouchPad pointing device

■

Network interface card (NIC) integrated on the system board, with a mini PCI V.92 modem

■

Integrated wireless support of 802.11b and Bluetooth devices through MultiPort

1–8 Maintenance and Service Guide

Product Description

■

Support for one Type I or II PC Card slot with support for both 32-bit CardBus and 16-bit PC Cards

■

External 90 W AC adapter with power cord

■

8-cell Li ion battery pack

■

40-, 30-, or 20-GB high-capacity hard drive, varying by computer model

■

1.44-MB diskette drive

■

Support for the following drives through the fixed optical drive:

❏

24X Max CD-ROM drive

❏

16X Max CD-RW drive

❏

8X Max DVD-ROM drive

❏

8X Max DVD-ROM/CD-RW combination drive

■

Connectors for:

❏

1394 digital input

❏

Stereo line out/headphone

❏

Mono microphone

❏

AC power

❏

Universal serial bus

❏

External monitor

❏

S-video

❏

External keyboard/mouse

❏

Parallel devices

❏

RJ-45 network

❏

RJ-11 modem

■

JBL Pro stereo speakers with bass reflex

■

Dolby Digital certified sound

Maintenance and Service Guide 1–9

Product Description

1.3 Clearing a Password

If the notebook you are servicing has an unknown password, follow these steps to clear the password. These steps also clear CMOS:

1. Prepare the computer for disassembly (refer to Section 5.3, “Preparing the Computer for Disassembly,” for more information).

2. Remove the RTC battery (refer to Section 5.7, “Disk Cell RTC Battery”).

3. Wait approximately five minutes.

4. Replace the RTC battery and reassemble the computer.

5. Connect AC power to the computer. Do not reinsert any battery packs at this time.

6. Turn on the computer.

All passwords and all CMOS settings have been cleared.

1–10 Maintenance and Service Guide

1.4 Power Management

The notebook comes with power management features that extend battery operating time and conserve power. The notebook supports the following power management features:

■

Standby

■

Hibernation

■

Setting customization by the user

■

Hotkeys for setting level of performance

■

Smart battery that provides an accurate battery power gauge

■

Battery calibration

■

Lid switch suspend/resume

■

Power/Suspend button

■

Advanced Configuration and Power Management (ACP) compliance

Product Description

Maintenance and Service Guide 1–11

Product Description

1.5 Computer External Components

The external components on the front and right side of the computer are shown in Figure 1-2 and described in Table 1-4.

Figure 1-2. Front and Right Side Components

Table 1-4

Front and Right Side Components

Item Component Function

1 Stereo speakers (2) Produce stereo sound.

2 Power/Standby light On: Power is turned on.

Off: Power is turned off. Blinking: Computer is in Standby mode.

1–12 Maintenance and Service Guide

Product Description

Table 1-4

Front and Right Side Components

Item Component Function

3 Display release latch Opens the computer.

4 Battery light On: A battery pack is charging.

Blinking: A battery pack that is the only available power source has reached a low-battery condition.

5 Battery bay Accepts an 8-cell Li ion battery pack.

6 Optical drive bay Accepts a CD-ROM, CD-RW, DVD-ROM, or

DVD/CD-RW combination drive.

7 1394 jack Connects IEEE 1394-compliant products,

such as digital camcorders, video editing equipment, VCRs, cameras, and audio players. A 1394 firewire cable is required for use with this jack.

(Continued)

Maintenance and Service Guide 1–13

Product Description

The computer rear panel and left side components are shown in Figure 1-3 and described in Table 1-5.

Figure 1-3. Rear Panel and Left Side Components

Table 1-5

Rear Panel and Left Side Components

Item Component Function

1 Stereo speaker/

headphone jack

2 Mono microphone jack Connects a mono microphone, disabling the

3 DC power jack Connects any one of the following:

4 USB connectors (2) Connect USB devices.

Connects stereo speakers, headphones, headset, or television audio.

built-in microphone.

■

AC adapter

■

Optional automobile power adapter/charger

■

Optional aircraft power adapter

1–14 Maintenance and Service Guide

Product Description

Table 1-5

Rear Panel and Left Side Components

Item Component Function

5 Fan Provides airflow to cool internal

components.

6 S-Video connector Connects a television, VCR, camcorder, or

overhead projector.

7 External monitor

connector

Connects an external monitor or overhead projector.

(Continued)

8 External

keyboard/mouse connector

9 Parallel connector Connects a parallel device.

10 Vents Allow airflow to cool internal components.

CAUTION: To prevent damage, the computer shuts down if an

overheating condition occurs. Do not block the cooling vent. Avoid placing the computer on a blanket, rug, or other flexible surface that may cover the vent area.

11 RJ-45 network jack Connects the network cable. A network

12 RJ-11 modem jack Connects the modem cable to an internal

13 Security cable slot Attaches an optional security cable to

14 PC Card eject button Ejects a PC Card from the PC Card slot.

15 PC Card slot Supports a 32-bit (CardBus) or 16-bit PC

16 Diskette drive Accepts diskettes.

Connects an optional full-sized keyboard or mouse. An optional splitter/adapter allows both an external keyboard and mouse to be used at the same time.

cable is not included with the computer.

modem. A modem cable is included with internal modem models.

the computer.

Card.

Maintenance and Service Guide 1–15

Product Description

The computer keyboard components are shown in Figure 1-4 and described in Table 1-6.

Figure 1-4. Keyboard Components

Table 1-6

Keyboard Components

Item Component Function

1–16 Maintenance and Service Guide

through

function keys

key Used with hotkeys to perform preset hotkey

F12

Perform preset functions.

functions.

Product Description

Table 1-6

Keyboard Components

Item Component Function

3 Windows logo keys Display the Windows Start menu.

4 Windows application

key

5 Cursor control keys Move the cursor around the screen.

Displays a menu when using a Microsoft application. The menu is the same one that is displayed by pressing the right mouse button.

(Continued)

6 Embedded numeric

keypad

Num lock

key Turns on the numeric lock function.

Converts keys to numeric keypad.

On: Num lock is on and the embedded numeric keypad is enabled.

Maintenance and Service Guide 1–17

Product Description

The computer top components are shown in Figure 1-5 and described in Table 1-7.

Figure 1-5. Top Components

Table 1-7

Top Components

Item Component Function

1 Power light On: Power is turned on.

Blinking: Computer is in Standby. The power light also blinks if a battery pack that is the only available power source reaches a low-battery condition.

2 Num lock light On: Num lock is on and the embedded

numeric keypad is enabled.

3 Easy Access

Buttons (3)

1–18 Maintenance and Service Guide

Provide quick access to the Internet. Refer to the Hardware Guide that ships with the computer for information about these buttons.

Product Description

Table 1-7

Top Components

Item Component Function

4 Power button Turns on the computer. Use the operating

system Shut Down command to turn off the computer.

5 Digital audio button Launches Windows Media Player to play

MP3 music.

6 Volume control buttons Adjust the volume of the stereo speakers.

7 Caps lock light On: Caps lock is on.

8 Drive indicator light Turns on when the hard drive, CD-, or

DVD-ROM drive is accessed.

9 Display lid switch Turns off the computer display if the

computer is closed while on.

10 TouchPad Moves the mouse cursor, selects, and

activates.

11 TouchPad buttons Function like the left and right mouse

buttons on an external mouse.

(Continued)

12 Power/Standby light On: Power is turned on.

Off: Power is turned off. Blinking: Computer is in Standby mode.

13 EasyScroll Scrolls the screen left, right, up, and down.

14 Battery power light On: A battery pack is charging.

Blinking: A battery pack that is the only available power source has reached a low-battery condition.

Maintenance and Service Guide 1–19

Product Description

The external components on the bottom of the computer are shown in Figure 1-6 and described in Table 1-8.

Figure 1-6. Bottom Components

Table 1-8

Bottom Components

Item Component Function

1 Hard drive retention screw Secures the hard drive to the

computer.

2 Hard drive bay Supports the primary hard drive.

The hard drive is secured to the computer by one screw.

3 Mini PCI communications

compartment

Contains the mini PCI modem card.

1–20 Maintenance and Service Guide

Product Description

Table 1-8

Bottom Components

Item Component Function

4 RJ-11 modem jack Connects the modem cable to an

5 RJ-45 network jack Connects the network cable. A

6 Connector cover Protects the parallel, external

7 Certificate of Authenticity label Contains the Product Key, which

8 Memory expansion

compartment

(Continued)

internal modem. A modem cable is included with internal modem models.

network cable is not included with the computer.

monitor, external keyboard/mouse, and USB connectors.

may need to be entered before using some Windows operating systems.

Covers the memory expansion compartment that contains two memory expansion slots for memory expansion boards.

9 Battery pack release switch Releases the battery pack from

the battery compartment.

10 Battery bay Accepts an 8-cell Li ion

battery pack.

11 Serial number Identifies the computer; needed

when you call Compaq customer support.

Maintenance and Service Guide 1–21

Product Description

1.6 Design Overview

This section presents a design overview of key parts and features of the computer. Refer to Chapter 3, “Illustrated Parts Catalog,” to identify replacement parts and Chapter 5, “Removal and Replacement Procedures,” for disassembly steps. The system board provides the following device connections:

■

Memory expansion board

■

Hard drive

■

Display

■

Keyboard/TouchPad or pointing stick

■

Audio

■

AMD Athlon and Duron processors

■

Fan

■

PC Card

■

Modem or modem/NIC

The computer uses an electrical fan for ventilation. The fan is controlled by a temperature sensor and is designed to turn on automatically when high-temperature conditions exist. These conditions are affected by high external temperatures, system power consumption, power management/battery conservation configurations, battery fast charging, and software applications. Exhaust air is displaced through the ventilation grill located on the left side of the computer.

CAUTION: To properly ventilate the computer, allow at least a

3-inch (7.6-cm) clearance on the left and right sides of the computer.

1–22 Maintenance and Service Guide

Troubleshooting

WARNING: Only authorized technicians trained by Compaq should

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

2.1 Computer Setup and Diagnostics Utilities

Selecting Computer Setup or Compaq Diagnostics

The computer features two Compaq system management utilities:

■

Computer Setup—A system information and customization utility that can be used even when your operating system is not working or will not load. This utility includes settings that are not available in Windows.

Maintenance and Service Guide 2–1

Troubleshooting

■

Compaq Diagnostics—A system information and diagnostic utility that is used within your Windows operating system. Use this utility whenever possible to:

❏

Display system information.

❏

Test system components.

❏

Troubleshoot a device configuration problem in Windows 2000, Windows XP Professional, or Windows XP Home.

Using Computer Setup

Information and settings in Computer Setup are accessed from the File, Security, or Advanced menus:

1. Turn on or restart the computer. Press

while the

F10

F10 = ROM Based Setup message is displayed in the lower-left corner of the screen.

❏

To change the language, press

❏

To view navigation information, press

❏

To return to the Computer Setup menu, press

F2.

F1.

esc.

2. Select the File, Security, or Advanced menu.

3. To close Computer Setup and restart the computer:

❏

Select File > Save Changes and Exit and press

enter.

❏

Select File > Ignore Changes and Exit and press

4. When you are prompted to confirm your action, press

enter.

F10.

2–2 Maintenance and Service Guide

Selecting from the File Menu

Table 2-1

File Menu

Select To Do This

Troubleshooting

System Information

Save to Floppy Save system configuration settings to a diskette.

Restore from Floppy Restore system configuration settings from a

Restore Defaults Replace configuration settings in Computer

Ignore Changes and Exit Cancel changes entered during the current

Save Changes and Exit Save changes entered during the current

■

View identification information about the computer, a docking base, and any battery packs in the system.

■

View specification information about the processor, memory and cache size, and system ROM.

diskette.

Setup with factory default settings. (Identification information is retained.)

session, then exit and restart the computer.

Maintenance and Service Guide 2–3

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