Compaq armada e700 Service Manual

Page 1
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.
1999 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
OMPAQ and ARMADA are registered in the U. S. Patent and Trademark Office.
C Microsoft, MS-DOS, Windows, Windows NT, and other names of Microsoft products
mentioned herein are trademarks or registered trademarks of Microsoft Corporation. Imation and SuperDisk are trademarks of Imation Corporation.
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.
Product names mentioned herein may be trademarks and/or registered trademarks of their respective companies.
MAINTENANCE AND SERVICE GUIDE
Compaq Armada E700 Series of Personal Computers
Second Edition December 1999 First Edition July 1999 Documentation Part Number 128530-002 Spare Part Number 127233-001
Compaq Computer Corporation
Page 2
Page 3
CONTENTS
preface
USING THIS GUIDE .....................................................................................................................................vii
chapter 1
PRODUCT DESCRIPTION
1.1 Computer Features and Models ...................................................................................................1-1
Models ........................................................................................................................................1-2
Intelligent Manageability............................................................................................................1-4
Accessing the Web Agent...........................................................................................................1-4
Asset Management .....................................................................................................................1-4
Fault Management ......................................................................................................................1-5
Security Management.................................................................................................................1-6
Configuration Management........................................................................................................1-7
Managing Power.........................................................................................................................1-7
1.2 Computer Components.................................................................................................................1-8
Power Equipment .......................................................................................................................1-9
Mass Storage Devices...............................................................................................................1-10
1.3 Computer External Components................................................................................................1-11
1.4 Design Overview........................................................................................................................1-18
System Board............................................................................................................................1-18
chapter 2
TROUBLESHOOTING
2.1 Preliminary Steps .........................................................................................................................2-2
2.2 Clearing Passwords ......................................................................................................................2-3
2.3 Power-On Self-Test (POST) ........................................................................................................2-3
2.4 POST Error Messages..................................................................................................................2-4
2.5 Compaq Utilities ..........................................................................................................................2-6
Selecting Computer Setup or Compaq Diagnostics for Windows .............................................2-7
Using Compaq Diagnostics for Windows ................................................................................2-10
Factory Default Settings...........................................................................................................2-10
2.6 Troubleshooting Without Diagnostics .......................................................................................2-12
Before Replacing Parts.............................................................................................................2-12
Obtaining Update Information with Info Messenger ...............................................................2-12
Checklist for Solving Problems................................................................................................2-13
chapter 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 Components.....................................................................3-4
3.4 Mass Storage Devices ..................................................................................................................3-5
3.5 Miscellaneous...............................................................................................................................3-6
Contents iii
Page 4
chapter 4
REMOVAL AND REPLACEMENT PRELIMINARIES
4.1 Tools Required.............................................................................................................................4-1
4.2 Service Considerations.................................................................................................................4-1
Plastic Parts ................................................................................................................................4-1
Cables and Connectors ...............................................................................................................4-2
4.3 Preventing Damage to Removable Drives ...................................................................................4-2
4.4 Preventing Electrostatic Damage.................................................................................................4-3
Packaging and Transporting Precautions ...................................................................................4-3
Workstation Precautions ............................................................................................................4-4
Grounding Equipment and Methods ..........................................................................................4-5
Electrostatic Voltage Levels and Protective Materials ..............................................................4-6
chapter 5
REMOVAL AND REPLACEMENT PROCEDURES
5.1 Serial Number ..............................................................................................................................5-1
5.2 Disassembly Reference Chart ......................................................................................................5-2
5.3 Preparing the Computer for Disassembly....................................................................................5-3
Undocking the Computer from the Compaq Expansion Base...................................................5-3
Undocking the Computer from the Compaq Convenience Base...............................................5-4
Disconnecting the Computer......................................................................................................5-5
5.4 Computer Feet..............................................................................................................................5-6
5.5 Battery Packs................................................................................................................................5-7
Removing a Battery Pack from the Battery Bay ........................................................................5-7
Removing a Battery Pack from the MultiBay ............................................................................5-9
Inserting a Battery Pack into the Battery Bay ..........................................................................5-12
Inserting a MultiBay Battery Pack ...........................................................................................5-13
Inserting a Dual-MultiBay Battery Pack ..................................................................................5-14
5.6 Hard Drives................................................................................................................................5-15
Removing a Hard Drive from the Hard Drive Bay...................................................................5-15
Inserting a Hard Drive into the Hard Drive Bay ......................................................................5-17
Removing a Hard Drive from the MultiBay.............................................................................5-19
Inserting a Hard Drive into the MultiBay ................................................................................5-20
5.7 MultiBay Devices ......................................................................................................................5-22
Removing MultiBay Devices ...................................................................................................5-22
Inserting MultiBay Devices......................................................................................................5-23
5.8 PC Cards ....................................................................................................................................5-24
Removing a PC Card................................................................................................................5-25
Inserting a PC Card ..................................................................................................................5-26
iv Contents
Page 5
5.9 Memory Expansion ....................................................................................................................5-27
Removing the Memory Expansion Compartment Cover .........................................................5-27
Removing a Memory Expansion Board ...................................................................................5-29
Installing a Memory Expansion Board.....................................................................................5-30
Installing the Memory Expansion Compartment Cover...........................................................5-31
5.10 Keyboard Assembly.................................................................................................................5-32
5.11 CPU Cover ...............................................................................................................................5-35
5.12 Power Supply ...........................................................................................................................5-38
5.13 Fan Assembly...........................................................................................................................5-42
5.14 Audio Board .............................................................................................................................5-43
5.15 Lithium Disk Cell Battery........................................................................................................5-44
5.16 Auxiliary Battery......................................................................................................................5-45
5.17 Mini PCI Riser Board...............................................................................................................5-46
Installing a Modem, LAN, or Combo Card..............................................................................5-47
5.18 USB Board ...............................................................................................................................5-49
5.19 Display Assembly ....................................................................................................................5-51
5.20 System Board ...........................................................................................................................5-54
chapter 6
SPECIFICATIONS
6.1 Physical and Environmental.........................................................................................................6-1
6.2 Display .........................................................................................................................................6-2
6.3 Hard Drive....................................................................................................................................6-3
6.4 Diskette Drive ..............................................................................................................................6-4
6.5 CD-ROM Drive............................................................................................................................6-5
6.6 DVD-ROM Drive.........................................................................................................................6-6
6.7 LS-120 Drive................................................................................................................................6-7
6.8 Battery Pack .................................................................................................................................6-8
6.9 System DMA................................................................................................................................6-8
6.10 System Interrupts........................................................................................................................6-9
6.11 System I/O Addresses ..............................................................................................................6-10
6.12 System Memory Map...............................................................................................................6-12
appendix A
CONNECTOR PIN ASSIGNMENTS ...............................................................................................................A-1
appendix B
POWER CORD SET REQUIREMENTS .......................................................................................................... B-1
INDEX ....................................................................................................................................................... I-1
Contents v
Page 6
vi Contents
Page 7
preface
g
USING THIS GUIDE
This Maintenance and Service Guide is a troubleshooting reference that can be used when servicing the Compaq Armada E700 Series of Personal Computers.
Compaq Computer Corporation reserves the right to make changes to the Compaq Armada E700 Series of Personal Computers without notice.

Symbols

The following words and symbols mark special messages throughout this guide:
WARNING: Text set off in this manner indicates that failure to follow
!
directions in the warning could result in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions in the caution could result in damage to equipment or loss of information.
IMPORTANT: Text set off in this manner presents clarifying information or specific instructions.
NOTE: Text set off in this manner presents commentary, sidelights, or interesting points of information.

Technician Notes

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 to make modifications to any printed wirin Improper repairs can create a safety hazard. Any indication of component replacement or printed wiring board modifications may void any warranty or exchange allowances.
WARNING: The computer is designed to be electrically grounded. To ensure
!
proper operation, plug the AC power cord into a properly grounded electrical outlet only.
CAUTION: To properly ventilate the system, you must provide at least 3 inches (7.62 cm) of clearance on the left and right sides of the computer.
board.
Preface vii
Page 8

Serial Number

When requesting information or ordering spare parts, provide the computer serial number. The serial number is on the bottom of the computer.

Locating Additional Information

The following documentation provides information for the computer:
Compaq Armada E700 Series of Personal Computers documentation set
Compaq Armada E700 Series of Personal Computers Technical Reference Guide
Microsoft Operating System Manual
Compaq Service Training Guides
Compaq Service Advisories and Bulletins
Compaq QuickFind
Compaq Service Quick Reference Guide
Compaq Internet site at http://www.Compaq.com
viii Preface
Page 9
chapter
1
PRODUCT DESCRIPTION
1.1 Computer Features and Models
The Compaq Armada E700 Series of Personal Computers offers advanced modularity, Intel Pentium III or II processors with 64-bit architecture, an industry-leading Accelerated Graphics Port (AGP) implementation, and extensive multimedia support. The computer provides desktop functionality and connectivity through the optional Compaq expansion base and Compaq convenience base.
Figure 1-1. Compaq Armada E700 Personal Computer
Product Description 1-1
Page 10

Models

The Armada E700 models are shown in Table 1-1. The computer model designation is composed of a group of characters that define each model’s features.
Table 1-1
Models and Model Naming Convention
Compaq Armada E700 Series of Personal Computers
Key
A E 7 P3 500 T 5 X 18 V C 128 95 N S F
1234 5-6 7-9 10111213-14151617-1920-2122232
Key Description Options
1 Brand designator A = Armada 2 Segment
designator 3 Series 7 = 700 4Blank
5-6 Processor type P3 = Intel Pentium III P2 = Intel Pentium II 7-9 Processor speed 500 = 500 MHz 400 = 400 MHz
10 Panel type T = TFT 11 Panel size 5 = 15.x” 4 = 14.x” 12 Panel resolution X = XGA
13-14 Hard drive size
(in GB, 1-2
digits)
15 Optical drive V = DVD-ROM drive 16 Integrated
communication
17-19 RAM (in MB,
2-3 digits)
20-21 Operating system 95 = Windows 95
22 NAFTA N = NAFTA 23 Pointing device S = Pointing stick P = TouchPad 24 Security F = Fingerprint
E = Expansion
18 = 18.0 GB 15 = 15.0 GB 10 = 10.0 GB
C = mini-PCI
combination modem/NIC
128 = 128 MB
98 = Windows 98 58 = Windows 95/98 dual install
M = mini-PCI
modem card
0 = none
N4 = Windows NT 4.0 2K = Windows 2000 N2 = Windows NT 4.0/2000
dual install
4
1-2 Product Description
Page 11
1234 5-67-9 10111213-14151617-1920-2122232
A E 7 PIII 500T 5 X 18 V C 128 3 S 140146-
A E 7 PIII 500T 5 X 18 V O 128 3 S 140148-
A E 7 PIII 500T 5 X 18 V C 128 5 S 140353-
A E 7 PIII 500T 5 X 18 V 0 128 5 S 140199-
A E 7 PIII 500T 5 X 18 V C 128 4 S 140205-
A E 7 PIII 500T 5 X 18 V 0 128 4 S 140255-
AE7 PII 400T 4 X 15 V C 128 3 S 113363-
AE7 PII 400T 4 X 15 V M 128 3 S 113364-
AE7 PII 400T 4 X 15 V 0 128 3 S 113365-
AE7 PII 400T 4 X 15 V C 128 1 S 113366-
AE7 PII 400T 4 X 15 V M 128 1 S 113367-
AE7 PII 400T 4 X 15 V 0 128 1 S 113368-
SKU#
4
xxx
xxx
xxx
xxx
xxx
xxx
xxx
xxx
xxx
xxx
xxx
xxx
Product Description 1-3
Page 12
Features
The computer has the following standard features:
Intel Mobile 500-MHz Pentium III or Intel Mobile 400-MHz Pentium II processors with 64-bit architecture, MMX technology, and 512-Kbyte, level-2 cache memory
Industry-leading portable computer AGP implementation, featuring:
- 66-MHz dedicated graphics bus
- frame made AGP
4-MB SGRAM (synchronous graphics)
128-MB of SDRAM (synchronous) on system board; expandable to 640 MB
Upgradable flash ROM BIOS
15.1- or 14.1-inch XGA (1024 × 768) TFT color displays, true color
(24-bit) support
Keyboard with built-in EasyPoint IV pointing device and mouse buttons or touchpad and touchpad mouse buttons
Lithium ion (Li-ion) battery pack
Removable 18.0-, 15.0-, or 10.0-GB hard drive
MultiBay that supports a second hard drive, a second battery pack, a diskette drive,
a CD-ROM drive, or a DVD-ROM drive
Two PC Card slots that accept 32- and 16-bit Type I, II, and III PC Cards, with zoomed video interface in the bottom slot
IrDa-compliant infrared port
1
(4-Mbps standard) for wireless file transfer, printing,
and file synchronization
Built-in stereo speakers featuring Compaq PremierSound, microphone, and jacks for stereo audio sound with electronic equalization and wave table synthesis
Energy Star-compliant power saving features
Ports and connectors for external equipment, including universal serial bus (USB),
serial, parallel, external monitor, and PS/2-compatible pointing device or keyboard
Security features
Desktop functionality available with the optional Compaq expansion base and
Compaq convenience base
Domestic and international modem and Ethernet connectivity
Integrated AC Adapter
Integrated V.90 56-Kbps data/fax modem
1
IrDa 4MB compliant. Infrared performance may vary depending on performance of infrared peripherals, distance
between infrared devices, and applications used.
1-4 Product Description
Page 13

Intelligent Manageability

Intelligent Manageability consists of preinstalled software tools for the computer and Compaq servers that assist in tracking, troubleshooting, protecting, and maintaining the computer. It provides the following functions:
Asset Management—provides detailed configuration and diagnostic information.
Fault Management—prevents, predicts, and alerts of impending hardware
problems.
Security Management—protects unauthorized access to data and components.
Configuration Management—optimizes the computer by providing the latest
drivers, utilities, and software, which are available on CD-ROM and the Compaq Web site at www.compaq.com/support/portables.
NOTE: For further help with Intelligent Manageability, select Start =Compaq Information Center Intelligent Manageability

Accessing the Web Agent

The computer may have a preinstalled Web Agent that allows computer configuration information to be viewed using Web technology. To access this feature, select Start Compaq Information Center ➔ Insight Web Management.
If the computer does not have a preinstalled Web Agent, it can be downloaded from the Compaq Web site at www.compaq.com.
Product Description 1-5
Page 14

Asset Management

AssetControl enables component information to be retrieved when on the road or connected to the network.
AssetControl also enables the network administrator to remotely retrieve information from any Compaq computer connected to the network. The information can be used to assist in tracking and maintaining the computer and its components. It provides the following information:
Inventory information—The network administrator can retrieve information about the computer over the network by using Compaq Insight Manager or any PC management tool provided by Compaq Solution Partners. Asset control information retrieved from the computer includes:
Manufacturer, model, and serial number of Compaq computers, monitors, hard
drives, battery packs, memory boards, processor speeds, and operating systems
Asset tag
System board and ROM revision levels
BIOS settings
Diagnostic information—Diagnostics for Windows includes information on hard
drives, ports, and video, sound, and other components. This application also allows the user to run multithreaded tests on hardware components. If problems are found, recommendations are provided.
All of the above information can be viewed, printed, or saved.
1-6 Product Description
Page 15

Fault Management

Fault Management features minimize downtime and data loss by monitoring system performance and generating the following alerts:
Hard drive alert—provides 72-hour advance warning of impending hard drive problems and can automatically start optional backup software.
System temperature alert—reports overheating. As the system temperature rises, this feature first adjusts fan speed and other cooling components, then displays an alert, then shuts down the system.
Battery pack alert—reports charging problems and battery pack failure.
Monitor alert—diagnoses and displays external monitor operational problems.
Memory alert—reports memory board configuration changes when a memory
board is removed, added, or reconfigured. It also provides the previous and current configurations for comparison.
The alerts work with or without network connection. If the computer is not connected to the network, the network administrator cannot receive alerts from the computer.
Fault Management Alerts
Alerts can be enabled, disabled, and tested, and software can be set to back up information whenever a hard drive alert occurs.
While the computer is connected to a network, alerts pop up on the computer display and are simultaneously reported to the network console.
System temperature alert—reports overheating. As the system temperature rises, this feature first adjusts fan speed and other cooling components, then displays an alert, then shuts down the system.
When the computer is not connected to a network, the user will receive a local alert.
To set alerts, select the Intelligent Manageability icon in the system tray.
Product Description 1-7
Page 16

Security Management

Security Management features customize system security.
Power-On and Setup Passwords—prevent unauthorized access to information and computer configuration.
DriveLock—prevents unauthorized access to hard drives.
Device disabling—prevents unauthorized data transfer through modems, serial
ports, parallel ports, and infrared ports on the computer and an optional docking station.
QuickLock/QuickBlank—locks the keyboard and clears the screen.
Ownership Tag—displays ownership information during system restart.

Configuration Management

Configuration Management optimizes software upgrade and customer support procedures. Compaq provides support software to optimize the performance of the computer. This support software is accessible through a monthly CD-ROM subscription. Support software can also be downloaded from the Compaq Web site at www.compaq.com/support/ portables.

Managing Power

The computer comes with a collection of power management features that allow battery operating time to be extended and power to be conserved. Use power management to monitor most computer components such as the hard drive, processor, and display.
Accessing Power Management
In Windows 95, select StartSettingsControl PanelPower to view or adjust settings in Power Properties.
NOTE: If Windows NT 4.0 is running, select Compaq Power instead of Power. If
Windows 98 is running, select Power Management.
Power Management Levels
To extend the life of batteries, use the Battery Conservation tab in Power Properties. If Windows 95 is running, select Start Settings Control Panel Power to access Power Properties.
NOTE: If Windows NT 4.0 is running, select Compaq Power instead of Power. If
Windows 98 is running, select Power Management.
The level of battery conservation or selection of preset power management levels can be customized.
1-8 Product Description
Page 17
1.2 Computer Components
System Memory Options
The main memory subsystem supports a minimum standard 128 MB of Synchronous SDRAM, expandable to 640 MB. The minimum standard Synchronous SDRAM is integrated on the system board. The upgrade SDRAM is accomplished with memory expansion boards that are available in 32-, 64-, 128-, and 256-MB.
The memory expansion slot cover is secured to the computer by a slotted Torx T-8 screw. A tamper-resistant security screw, included with the computer, can be used to provide added security. A security wrench, also included with the computer, must be used to remove the tamper-resistant security screw.
System memory can be upgraded as shown in Table 1-2.
Table 1-2
Memory Upgrade
Base Memory on System Board
128 MB 512 (2 × 256 MB) 640 MB
128 MB 384 (1 × 256 MB + 1 × 128
128 MB 320 (1 × 256 MB + 1 × 64 MB) 448 MB
128 MB 288 (1 × 256 MB + 1 × 32 MB) 416 MB
128 MB 256 (1 × 256 MB or 2 × 128
128 MB 192 (1 × 128 MB + 1 × 64 MB) 320 MB
128 MB 160 (1 × 128 MB + 1 × 32 MB) 288 MB
128 MB 128 (1 × 128 MB or 2 × 64
128 MB 96 (1 × 64 MB + 1 × 32 MB) 224 MB
128 MB 64 (1 × 64 MB or 2 × 32
128 MB 32 (1 × 32 MB) 160 MB
Memory Expansion Board Total Memory
512 MB
MB)
384 MB
MB)
256 MB
MB)
192 MB
MB)
Product Description 1-9
Page 18

Power Equipment

The following battery options are available:
Lithium ion battery pack
Battery Charger
Automobile Power Adapter/Charger and Aircraft Power Adapter
Lithium Ion Battery Pack
The battery pack can be used in the computer dedicated battery bay, computer MultiBay, Compaq expansion base MultiBays, and Compaq convenience base MultiBay and battery charging bay.
Battery Charger
The external Battery Charger has the following features:
Two battery charging bays
Charging of one battery in 1.5 hours
Charging of two batteries in 3 hours
Automobile Power Adapter/Charger and Aircraft Power Adapter
The Automobile Power Adapter/Charger and Aircraft Power Adapter allows the computer to operate from a 12-volt aircraft DC socket and from an automobile cigarette lighter receptacle.
1-10 Product Description
Page 19

Mass Storage Devices

The following mass storage devices are available for the computer.
Table 1-3
Mass Storage Devices
Device Capacity
Diskette drive 3.5-inch, 1.44 MB, 720 Kbyte, and 1.2 MB (Japanese format)
Hard drive 18.0, 15.0, and 10.0 GB (also available as an option)
CD-ROM drive 24-Speed Max (available as an option)
DVD-ROM 4.7 GB
SuperDIsk LS-120 drive 120 MB (available as an option)
External diskette drive 3.5-inch, 1.44 MB
Diskette Drive
The computer uses a 3.5-inch diskette drive that fits into the computer, Compaq expansion base, or Compaq convenience base MultiBays. The diskette drive is a three­mode type that is compatible with 1.44-MB, 1.2-MB, and 720-Kbyte (formatted) AT drive types. The system supports a maximum of two diskette drives: one in the computer MultiBay and one in the Compaq expansion base or Compaq convenience base MultiBay.
Hard Drive
The dedicated hard drive bay supports a removable 18.0-, 15.0-, or 10.0-GB hard drive. The MultiBay supports a second hard drive. Before a hard drive can be used in the MultiBay, it first must be inserted in the Hard Drive MultiBay Adapter.
CD-ROM Drive
A 24-speed Max CD-ROM drive is available as an option. The drive supports 3.5-inch and 5.25-inch media in the following formats:
ISO-9660, the most common CD-ROM format
CD-ROM XA eXtended Architecture, a standard for storing multimedia
information
Photo CD (single and multisession), Kodak's format for storing photographic images on CD-ROM
CD-i and CD-i Bridge
CD-DA (digital audio)
CD-ROM Mode 1 and Mode 2
CD-I Mode 2 (Form 1 and Form 2)
Video CD
Product Description 1-11
Page 20
1.3 Computer External Components
The external components on the display and left side of the computer are shown in Figure 1-2 and described in Table 1-4.
Figure 1-2. Display and Left Side Components
Table 1-4
Display and Left Side Components
Item Component Function
1
2
3
4
5
6
7
Fan Provides airflow exhaust.
Video out jack Connects a television, VCR, camcorder,overhead
projector, or video capture card.
NOTE: These connections require the use of optional videl cables and the video out adapter included with the computer.
Hard drive bay Accepts removable hard drive. Holds primary hard
drive.
Audio bass port Enhances sound.
Security slot Attaches an optional security cable to the computer.
Mono microphone Allows for audio input; located on the inside and
outside of the display, can be used whether the computer is open or closed.
Display release latch Opens the computer.
1-12 Product Description
Page 21
The external components on the front panel of the computer are shown in Figure 1-3 and are described in Table 1-5.
Figure 1-3. Front Panel Components
Table 1-5
Front Panel Components
Item Component Function
1
2
3
4
5
6
Mono microphone jack Connects mono microphone, disabling the built-in
microphone.
Stereo speaker/headphone jack
Stero line-in jack Connects external device such as a CD player, tuner, or
Battery bay Accepts Lithium ion battery pack.
Top MultiBay Supports a 12.7-mm Armada drive or a MultiBay
Bottom MultiBay Supports a 12.7-mm Armada drive or a MultiBay
Connects external stereo speakers, headphones, or headset.
This jack is driven by an amplifier and has volume control. The internal computer speakers are turned off when external speakers or headphones are plugged into this jack.
tape deck.
battery pack.
battery pack.
Also supports a 17-mm Armada hard drive or a Dual­MultiBay battery pack, which fills both the top and bottom MultiBays.
Product Description 1-13
Page 22
The external components on the right side of the computer are shown in Figure 1-4 and are described in Table 1-6.
Figure 1-4. Right Side Components
Table 1-6
Right Side Components
Item Component Function
1
2
3
4
5
Audio bass port Enhances sound.
RJ-45 jack (network models only)
RJ-11 jack (internal modem models only)
PC Card slots Accepts 16- and 32-bit CardBus PC Cards.
PC Card eject levers (2) Eject PC Cards from the slots.
Connects the network cable.
NOTE: A network cable is included with network models.
Connects the modem cable to an internal modem.
NOTE: A modem cable is included with internal modem models.
Connects a standard telephone cable for a modem in North America, Latin America, Japan, China, and Hong Kong only.
1-14 Product Description
Page 23
The external components on the rear panel of the computer are shown in Figure 1-5 and
p
g
described in Table 1-7.
Figure 1-5. Rear Panel Components
Table 1-7
Rear Panel Components
Item Component Function
1 Infrared port Provides wireless communication between the
2 Universal serial bus (USB)
connector
3 Serial connector Connects optional serial devices such as a mouse. 4 Parallel connector Connects optional parallel devices such as a printer. 5 Docking connector Connects optional Compaq expansion base or Compaq
6 Keyboard/mouse connector Connects an optional full-sized keyboard or a mouse.
7 External monitor connector Connects an optional external monitor or a television
8 DC power connector Connects an AC Adapter (external adapter models
computer and another infrared-equipped device using an infrared beam. Connects USB devices, such as cameras for video conferencing, or hubs which connect multiple USB devices. This connector is a powered hub. When running Windows 95 or higher or Windows NT or higher, any combination of up to five powered or
owered hubs can be connected in any sequence, as
un
as two unpowered hubs are not connected next to
lon each other. When running a lower version of Windows or Windows NT, or a different operating system, up to two hubs can be connected.
convenience base.
Both external mouse and computer pointing device are active. An optional splitter/adapter allows both an external keyboard and mouse to be used at the same time.
adapter.
only), an optional Automobile Power/Adapter Charger, or an optional Aircraft Power Adapter.
Product Description 1-15
Page 24
9 Power cord connector Connects external (AC) power.
1-16 Product Description
Page 25
Computer keyboard components are shown in Figure 1-6 and described in Table 1-8.
Figure 1-6. Computer Components: Keyboard
Table 1-8
Keyboard Components
Item Component Function
1 Numeric lock light Turns on when the Numeric Lock function is on. 2 Scroll lock light Turns on when the Scroll function is on. 3 Caps lock light Turns on when the Caps Lock function is on. 4 Display switch Turns off the display if it is closed while the computer
5 Vents Allow airflow to cool the computer. 6 EasyPoint IV pointing stick
7 Windows application key Displays shortcut menu for item beneath mouse cursor. 8 Stereo speakers Produce stereo sound. 9 Left and right mouse buttons
10 Scroll pointing stick button
11 Fn key Used with hotkeys to perform perset hotkey functions. 12 Caps lock key Turns on the caps lock function. 13 Power switch Turns the computer on or off of exits Suspend1. 14 Volume control Adjusts volume of stereo speakers. 15 Suspend button
(pointing stick models only)
(pointing stick models only)
(pointing stick models only)
2
is turned on. The computer beeps unless audio has been disabled.
Moves the mouse cursor.
Function like left and right mouse bottons on an external mouse.
Can be set to scroll, magnify, or function like the third button on an external mouse.
Initiates or exits Suspend1. When pressed with the Fn key, initiates Hibernate.
Product Description 1-17
Page 26
Additional computer keyboard components are shown in Figure 1-7 and described in
y p
Table 1-9.
Figure 1-7. Keyboard Components (continued)
Table 1-9
Keyboard Components (continued)
Item Component Function
1 Page up key Moves image to previous screen. 2 Page down key Moves image to following screen. 3 Embedded numeric keypad Converts keys to numeric keypad. 4 Cursor-control keys Move the cursor around the screen. 5 Control key Used with selected alphabetic keys to access File and
6 Touchpad (touchpad models
only)
7 Left and right touchpad
buttons (touchpad models only)
8 MultiBay drive light (green) Turns on when a MultiBay device is being accessed or
9 Hard drive light (green) Turns on when the hard drive is being accessed. 10 Power/suspend light (green) Turns on when computer is turned on; blinks in
11 Battery power light (orange) Turns on when a battery pack in the battery bay is
12 Microsoft logo key Displays the Windows Start menu. 13 F1 through F12 function keys Perform preset functions.
Edit menu options. Moves the mouse cursor, selects, and activates.
Function like the left and right mouse buttons on an external mouse.
a batter be charged.
Suspend; turns off when computer is in Hibernation or turned off.
charging or waiting to charge. Turns off when battery pack is fully charged. Blinks six times if low-battery condition is reached. Blinks continuously if critical low­battery condition is reached. If AC power is not connected within 20 seconds, Hibernation is initiated (unless Hibernation has been disabled).
ack in the MultiBay is charging or waiting to
1-18 Product Description
Page 27
Product Description 1-19
Page 28
The external components on the bottom of the computer are shown in Figure 1-8 and are described in Table 1-10.
Figure 1-8. Bottom Components
Table 1-10
Bottom Components
Item Component Function
1
2
3
4
5
6
7
8
9
Tilt feet latches Release the tilt filt.
NOTE: To close the tilt feet, press the feet against the bottom of the computer.
Tilt feet Tilt the computer for ease of use.
Memory expansion compartment cover
Hard drive release latch Releases the hard drive from the hard drive bay.
Battery release latch Releases the battery from the battery bay.
Docking restraint latch recess Secures the computer to the expansion base.
Front MultiBay release latch Releases a MultiBay device from the bottom MultiBay
Rear MultiBay release latch Releases a MultiBay device from the top MultiBay.
Serial number Identifies the computer; needed when caling Compaq
Covers the memory expansion compartment.
or a device which occupies both the top and bottom MultiBays.
customer support.
1-20 Product Description
Page 29
1.4 Design Overview
This section presents a design overview of key parts and features of the computer. For assembly/disassembly instructions for the parts described in this section, refer to Chapter 5.

System Board

The system board provides the following device connections:
Memory expansion board
MultiBay device
Hard drive
Display
Keyboard/EasyPoint IV pointing device or touchpad
Audio
Pentium II processor
Fan
PC Cards
Modem
The computer is equipped with an Intel Mobile Pentium III 500-MHz or Intel Mobile Pentium II 400-MHz processor. For ventilation, an electrical fan is installed. The fan operates on from 5 to 12 volts and is controlled by a temperature sensor. The fan 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.
Product Description 1-21
Page 30
chapter
2
TROUBLESHOOTING
Follow these basic steps when beginning the troubleshooting process:
1. Complete the preliminary steps listed in Section 2.1.
2. Run the Power-On Self-Test (POST) as described in Section 2.2.
3. Run Computer Setup as described in Section 2.4.
4. If you are unable to run POST or if the problem persists after running POST, perform the recommended actions described in the diagnostic tables in Section 2.4.
Follow these guidelines when troubleshooting:
Complete the recommended actions in the order in which they are given.
Repeat POST after each recommended action until the problem is resolved and the
error message does not return.
When the problem is resolved, stop performing the troubleshooting steps and do not complete the remaining recommended actions.
Refer to Chapter 5 for recommended removal and replacement procedures.
If the problem is intermittent, check the computer several times to verify that the
problem is solved.
The following table describes the troubleshooting actions:
If You Want To: Then Run:
Check for POST error messages POST
Perform any of the following:
Check the system configuration
Set the system power management parameters
Return the system to its original configuration
Check system configuration of installed devices
Computer Setup
Troubleshooting 2-1
Page 31
2.1 Preliminary Steps
IMPORTANT: Use AC power when running POST or Computer Setup. A low battery
condition could initiate Hibernation and interrupt the test.
Before running POST, complete the following steps:
1. Obtain established passwords.
2. Ensure that the hard drive is installed in the computer.
3. Ensure that the battery pack is installed in the computer and the power cord is connected to the computer and plugged into an AC power source.
4. Turn on the computer.
5. If a power-on password has been established, type the password and press Enter.
6. Run Computer Setup (Section 2.4). If a Setup password has been established, type the password and press Enter.
7. Turn off the computer and all external devices.
8. Disconnect external devices that you do not want to test. If you want to use the printer to log error messages, leave it connected to the computer.
NOTE: If a problem only occurs when an external device is connected to the computer, the problem could be with the external device or its cable. Isolate the problem by running POST with and without the external device connected.
9. Use Compaq Utilities and loopback plugs in the serial and parallel connectors if you plan to test these ports.
Follow these steps to run Compaq Utilities:
a. If you are running Compaq Utilities from the hard drive, turn on or restart the
computer. Press F10 when the cursor appears in the upper-right corner of the screen. If you do not press F10 in time, restart the computer and try again.
If you are running Compaq Utilities from diskette, insert the Compaq Utilities diskette in drive A. Turn on or restart the computer.
b. Press Enter to accept OK. c. Select Prompted Diagnostics. d. After “Identifying System Hardware” completes, select Interactive Testing and
follow the instructions on the screen.
2-2 Troubleshooting
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2.2 Power-On Self-Test (POST)
The Power-On Self-Test (POST) is a series of tests that run every time the computer is turned on. POST verifies that the system is configured and functioning properly.
To run POST, complete the following steps:
1. Complete the preliminary steps (Section 2.1).
2. Turn on the computer.
If POST does not detect any errors, the computer beeps once or twice to indicate that POST has run successfully. The computer boots from the hard drive or from a bootable diskette if one is installed in the diskette drive.
Troubleshooting 2-3
Page 33
2.3 POST Error Messages
If the system is not functioning well enough to run POST, or if the display is not functioning well enough to show POST error messages, refer to the Troubleshooting tables in Section 2.5.
If POST detects an error, one of the following events occurs:
A message with the prefix "WARNING" appears, informing you where the error occurred. The system pauses until you press F1 to continue.
A message with the prefix "FATAL" appears, informing you where the error occurred. After the message, the system emits a series of beeps, then stops.
The system emits a series of beeps, then stops.
Warning messages indicate that a potential problem, such as a system configuration error, exists. When F1 is pressed, the system should resume. You should be able to correct problems that produce WARNING messages.
If you receive one of the error messages listed below, follow the recommended action.
Table 2-1
Warning Messages
Message Description Recommended Action
CMOS checksum invalid, run SCU
CMOS failure, run SCU CMOS RAM has lost power. Run Computer Setup to
Diskette controller error The diskette drive
Diskette track 0 failed The diskette drive cannot
CMOS RAM information has been corrupted.
controller failed to respond to the recalibrate command.
read track 0 of the diskette in the drive.
Run Computer Setup to reinitialize CMOS-RAM.
reinitialize CMOS-RAM. If there is no diskette drive in
the system, run Computer Setup to properly configure the CMOS­RAM to show no diskette drive present. If the problem persists, or if a diskette drive is present, complete these steps until the problems is solved:
1. Check diskette drive connections.
2. Replace diskette drive.
3. Replace system board.
Try another diskette. If the problem persists, you may need to replace the diskette drive.
Continued
2-4 Troubleshooting
Page 34
Table 2-1
Hard disk controller error The hard drive controller
Keyboard controller failure The keyboard failed the
Keyboard failure The keyboard failed to
No interrupts from Timer 0 The periodic timer interrupt
ROM at xxxx (LENGTH yyyy) with nonzero checksum (zz)
Time/Date corrupt - run SCU The time and date stored
Hard disk xx failure (or error) A failure or an error
Continued
failed to respond to the reset command.
self-test command.
respond to the RESET ID command.
is not occurring. An illegal adapter ROM
was located at the specified address.
in the real time clock have been corrupted, possibly by a power loss.
occurred when trying to access the hard drive.
Check the drive parameters. Turn off the system and check all related connections.
Replace the system board.
Replace the keyboard. If the problem persists, replace the system board.
Replace the system board.
Check the external adapter (such as a video card) to determine if it is causing the conflict.
1. Run Computer Setup.
2. If problem persists, replace auxiliary battery.
3. If problems persists, replace system board.
1. Run ScanDisk.
2. Check disk in DOS and Windows 95.
Fatal errors emit a beep and may display a FATAL message. Fatal errors indicate severe problems, such as a hardware failure. Fatal errors do not allow the system to resume. Some of the Fatal error beep codes are listed at the end of this section.
Table 2-2
Fatal Error Messages
Message Description Beep code
CMOS RAM test failed A walking bit test of CMOS RAM location
0E (Hex) - 3F (Hex) failed.
DMA controller faulty A sequential read/write of the transfer
count and transfer address registers within the primary and secondary DMA controllers failed.
Faulty DMA page registers A walking bit read/write of the 16 DMA
controller page registers starting at location 80 Hex failed.
Faulty refresh circuits A continuous read/write test of port 61h
found that bit 4 (Refresh Detect) failed to toggle within an allotted amount of time.
Interrupt controller failed A sequential read/write of various
Interrupt Controller registers failed.
ROM checksum incorrect A checksum of the ROM BIOS does not
match the byte value at F000:FFFF.
RAM error at location xxxx RAM error occurred during memory test. None
*Beep codes are defined in Table 2-3.
3
4
0
1
5
2
Troubleshooting 2-5
Page 35
Table 2-3
Fatal Error Beep Codes
Beep Code Beep Sequence Description Recommended Action
0 S-S-S-P-S-S-L-P The DMA page registers are
faulty. 1 S-S-S-P-S-L-S-P The refresh circuitry is faulty. 2 S-S-S-P-S-L-L-P The ROM checksum is
incorrect. 3 S-S-S-P-L-S-S-P The CMOS RAM test failed. 4 S-S-S-P-L-S-L-P The DMA controller is faulty. 5 S-S-S-P-L-L-S-P The interrupt controller failed. 6 S-S-S-P-L-L-L-P The keyboard controller
failed. 7 S-S-L-P-S-S-S-P Graphics adapter is faulty. 8 S-S-L-P-S-S-L-P Internal RAM is faulty. Replace memory board
NOTE: S = Short, L = Long, P = Pause
Replace system board.
or system board if memory on system board is faulty.
2.4 Compaq Utilities
Compaq Utilities contain several functions that
Determine if various computer devices are recognized by the system and are operating properly.
Provide information about the system once it is configured.
Compaq Utilities include the following programs:
Computer Setup
Compaq Diagnostics
To access Compaq Utilities:
1. Turn on or restart the computer by clicking StartShut DownRestart the computer.
2. Press F10 when the blinking cursor appears in the upper-right corner of the display.
3. Select a menu option.
2-6 Troubleshooting
Page 36

Selecting Computer Setup or Compaq Diagnostics for Windows

The computer features two system management utilities:
Computer Setup is a system information and configuration utility that can be used even when your operating system is not working or will not load. It includes custom settings that are not available in Windows.
To configure a device in Windows NT 4.0, you must use Computer Setup.
Compaq Diagnostics for Windows is a system information and diagnostic utility that is used within the Windows operating system. Use Compaq Diagnostics for Windows to test system components and to display system information whenever possible.
To configure a device in Windows 95 or 98 use the operating system itself. Windows 95 and 98 can be used to add and remove programs, and provide Wizards to ensure proper device drivers are installed. Diagnostics for Windows is NOT a configuration tool and might only test devices that are properly configured by the operating system.
NOTE: It is not necessary to configure a device connected to a USB connector on
the computer or an optional docking base.
Using Computer Setup
All information and settings in Computer Setup are accessed from the File, Security, or Advanced menus.
NOTE: Your settings in Computer Setup are not affected by updating the system ROM.
To view information or change a setting in Computer Setup:
1. Turn on or restart the computer. When the blinking cursor appears in the upper-right
corner of the screen, press
To change the language, press
To view navigation information, press
To return to the Computer Setup menu from anywhere in Computer Setup,
Esc.
press
2. Select the File, Security, or Advanced menu.
3. To close Computer Setup and restart the computer
Select FileIgnore Changes and Exit, then press
or
Select FileSave Changes and Exit, then press
4. To confirm your choice, press
F10.
F2.
F1.
Enter.
Enter.
F10.
Troubleshooting 2-7
Page 37
File Menu
Begin here To do this
System information
Save to floppy Save system configuration to a diskette. Restore from floppy Restore system configuration 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, then exit and restart the
View identification information about the
computer, docking base, and battery packs.
View specification information about the
processor, memory and cache size, and ROM date and family.
diskette. (The diskette contains your personal configuration, so you should restore from the diskette before using the System Recovery CD-ROM.)
Setup with factory default settings. (Identification information is retained.)
Computer Setup session, then exit and restart the computer.
computer.
Security Menu
Begin here To do this
Setup password Enter, change, or delete a setup password. Power-On password Enter, change, or delete a power-on
Password options Enable/disable:
DriveLock passwords Enter, change, or delete a DriveLock
Device security Enable/disable
System IDs Enter identification numbers for the
password.
QuickLock/QuickBlank.
Lock keyboard and pointing stick or
touchpad at startup.
(These features can be enabled only when a power-on password is set.)
password.
Ports or diskette drives.
Diskette write.
CD-ROM or diskette startup.
NOTE: Settings for a DVD-ROM can be entered in the CD-ROM field.
computer, a docking base, and battery packs.
2-8 Troubleshooting
Page 38
Advanced Menu
Begin here To do this
Language (or press F2) Change the Computer Setup language. Boot Options Enable/disable
QuickBoot, which starts the computer
more quickly by eliminating some startup tests. (If you suspect a memory failure and want to test memory automatically during startup, you may want to disable QuickBoot.)
MultiBoot, which enables you to set a
startup sequence that can include any drives in the system.
Device Options
Enable/disable the embedded numeric
keypad at startup.
Enable/disable multiple standard
pointing devices at startup. When this feature is disabled, only one pointing device is activated at startup.
Enable/disable USB legacy support for
one USB mouse and one USB keyboard. (When USB legacy support is enabled, the keyboard and mouse work without a loaded USB driver.)
Set an optional external monitor or
overhead projector connected to a video card in a docking base as the primary device. (When the computer display is set as secondary, the computer must be shut down before undocking.)
Set video-out mode to NTSC (default),
NTSC-J, PAL, or PAL-M.
Change the parallel port mode to or from EPP, standard, bidirectional, or ECP.
Troubleshooting 2-9
Page 39

Using Compaq Diagnostics for Windows

1. Access Compaq Diagnostics for Windows by selecting
StartSettingsControl PanelCompaq Diagnostics.
2. To select a category, choose one of two methods:
Select the Categories menu, then select a category from the drop-down list.
Select a category icon on the toolbar.
3. To run diagnostic tests
a) Select the Test tab. b) In the scroll box, select the category or device you want to test. c) Select the Quick, Complete, or Custom test type. d) Select the Interactive or Unattended test mode. e) Select the Begin Testing button. f) View test information by selecting a report from the Status, Log, or Error tab.
4. To print the information or save it to a drive, select the File menu, then select Print or Save As.
5. To exit, select the File menuExit.

Factory Default Settings

Table 2-4
Initialization
Enable POST Memory Test Checked (enabled) Keyboard Num Lock Unchecked (Off) Hard drive boot sequence
1 Hard drive in the computer MultiBay 2 Hard drive in the computer hard drive bay 3 Hard drive in the expansion base or
4 Hard drive in the expansion base or
Boot display Auto Language Language of country
convenience base half-height/MultiBay
convenience base MultiBay
2-10 Troubleshooting
Page 40
Table 2-5
Ports
Serial port 3F8, IRQ4 Infrared port 2F8, IRQ9 Parallel port 378, IRQ7 Ethernet port 300, IRQ11
Table 2-6
Power
Low Battery Warning Beep Checked (enabled) External Energy Saving Monitor Connected Unchecked (not connected) Power Management
Enabled While operating on battery power Conservation Level High Level Definition
High Suspend Time: 3 minutes
Medium Suspend Time: 5 minutes
Custom Suspend Time: disabled
Hibernation Timeout: Immediate Drive Timeout: 1 minute Screen Timeout: 1 minute
Hibernation Timeout: 1 hour Drive Timeout: 2 minutes Screen Timeout: 3 minutes
Hibernation Timeout: low battery Drive Timeout: always on Screen Timeout: always on
Table 2-7
Security
Enable QuickLock/QuickBlank Unchecked (Disabled) Enable Power-On Password Unchecked (Disabled) Disable Serial/Infrared Ports Unchecked (Enabled) Disable Parallel Port Unchecked (Enabled) Disable PC Card Slots Unchecked (Enabled) Setup Password Password blank Power-On Password Password blank Diskette Drives
Disable Diskette Drives Unchecked (Enabled) Disable Diskette Boot Unchecked (Enabled)
Troubleshooting 2-11
Page 41
2.5 Troubleshooting Without Diagnostics
This section provides information about how to identify and correct some common hardware, memory, and software problems. It also explains several types of messages that may be displayed on the screen.
Since symptoms can appear to be similar, carefully match the symptoms of the computer malfunction against the problem description in the Troubleshooting tables to avoid a misdiagnosis.

Before Replacing Parts

When troubleshooting a problem, check the following items for possible solutions before replacing parts:
Verify that cables are connected properly to the suspected defective parts.
Verify that all required device drivers are installed.
Verify that all printer drivers have been installed for each application.

Obtaining Update Information with Info Messenger

Compaq Info Messenger allows you to set a customized search of the Compaq Web site. By registering for this utility, you can stay up to date with software and hardware information specific to your system.
To access Compaq Info Messenger, go to www.compaq.com and select Info
Messenger.
To register, follow the instructions on the Info Messenger page. When your
registration is complete, you can
Implement your customized search whenever you prefer from the Info
Messenger page.
Set Info Messenger to send you the information by email as it becomes
available.
Info Messenger will also inform you if there are updates to the system ROM for your computer.
2-12 Troubleshooting
Page 42

Checklist for Solving Problems

If you encounter a minor problem with the computer or software applications, go through the following checklist for possible solutions:
Is the computer connected to an external power source, or does it have a fully charged battery pack installed?
Are all cables connected properly and securely?
Did the diskette drive contain a nonbootable diskette when you turned on the
computer?
Have you installed all the needed device drivers? For example, if you are using a mouse, you may need to install a mouse device driver.
Are printer drivers installed for each application?
Eliminating the typical problems described in this Troubleshooting section may save you time and money. If the problem appears related to a software application, check the documentation provided with the software. You may discover something you can resolve easily by yourself.
If the condition persists, contact your Compaq authorized dealer or service provider.
Table 2-8
Solving Audio Problems
Problem Possible Cause Solution
Computer does not beep after the Power-On Self-Test (POST).
Internal speaker does not produce sound when an external audio source is connected to the stereo line­jack.
System beeps have been turned down.
Volume may be turned off or set too low.
Line input may not be connected properly.
Headphones or speakers are connected to the stereo speaker/ headphone jack, which disables the internal speakers.
Volume may be muted Uncheck the mute box in the
Use the Fn+F5 hotkeys to turn up the system volume.
Adjust the overall volume by
pressing the Fn+F5 hotkeys.
Adjust the sliding mixer
controls by double-clicking the speaker icon on the Windows taskbar.
Check line input connection.
Disconnect the head-phones or
speakers to enable the internal speakers.
volume properties.
Continued
Troubleshooting 2-13
Page 43
Table 2-8
Continued
Problem Possible Cause Solution
External microphone does not
work.
The microphone may not be
You are using the wrong type
of microphone or microphone plug for the computer.
connected properly.
Check to see if you are using a
monophonic electret condenser micro-phone with a 3.5-mm plug.
Ensure that the micro-phone
plug is properly connected to the mono microphone jack.
Sound source not selected. Ensure that microphone is
selected as the recording source in Control Panel Multimedia and that the recording level is adjusted.
Audio settings are not set
correctly.
Volume control on the
computer is turned down.
No sound from headphones Volume or mixing controls set
incorrectly.
Check the game program's audio
settings.
Adjust the computer volume with
the Fn+F5 hotkeys.
Adjust the overall volume
with the Fn+F5 hotkeys.
Use the mixing features
available by double-clicking the speaker icon on the Windows taskbar.
Sound source not selected. Verify that the sound source is
selected in Control Panel Multimedia.
The headphones are
connected to the wrong jack.
Volume too low or too loud Volume or mixing controls set
incorrectly.
Check the connection.
Adjust the overall volume
with the Fn+F5 hotkeys.
Check the mixing features
available by double-clicking the speaker icon on the Windows taskbar.
Problem Possible Cause Solution
Computer is beeping and
battery power light is blinking
Computer battery charge light
blinks to indicate low battery condition, but computer does not beep.
2-14 Troubleshooting
Table 2-9
Solving Battery/Battery Gauge Problems
Battery pack charge is low.
Volume turned down too low. Turn up the volume using the
Recharge the battery pack by
connecting to an external power source.
Replace the battery pack with
another fully charged battery.
Initiate Hibernation or turn
the computer off until AC power or a fully charged battery is available.
Fn+F5 hotkeys.
Continued
Page 44
Table 2-9
y
Continued
Problem Possible Cause Solution
Battery pack will not charge. Battery pack was exposed to
temperature extremes.
Battery pack is already
charged.
Battery pack has exceeded
its useful life cycle.
Computer shut down and
memory was lost when replacing the battery pack.
Battery charge does not last
very long.
Hibernation was not initiated
before removing the battery pack.
Battery is exposed to higher
temperatures.
Battery is exposed to
extremely cold temperatures.
Allow time for the battery pack
to return to room temperature.
No action required.
Use a different battery pack.
Work is lost.
Put the computer in a cooler
place and recharge the battery pack.
Put the computer in a warmer
place and recharge the battery pack.
NOTE: The recommended
operating temperature range for the batter (50°F to 104°F). The recommended storage temperature range for the battery is from 0°C to 30°C (32°F to 86°F).
Battery conservation is
disabled or set to drain.
An external device is draining
the battery.
Battery gauge may be
inaccurate and require recalibration.
Date and time must be set
every time computer is turned on.
Battery gauge seems
inaccurate.
The Real Time Clock battery
has reached the end of its useful life.
The battery pack may need
calibration.
The battery pack has reached
the end of its useful life.
Battery pack is warm after
charging.
Warming occurs during
charging.
Reset the battery conservation
level.
Turn off or remove any external
device or PC Cards when not in use.
Recalibrate the gauge.
Restore power, then turn on
the computer with the power switch
Contact your Compaq
authorized service provider to replace the Real Time Clock battery.
Recalibrate the battery.
Replace the battery pack.
No action required.
is from 10°C to 40°C
Troubleshooting 2-15
Page 45
Table 2-10
Solving Compact Disc and DVD-ROM Problems
Problem Possible Cause Solution
Drive cannot read a disc Disc is not properly seated in
the drive.
Disc is loaded in the loading
tray upside down.
Disc has a scratch on its
surface.
CD-ROM drive or DVD-ROM
drive is not detected by the computer.
Drive is not connected
properly.
Open the loading tray, insert the
disc, then close the tray.
Open the loading tray, turn over
the disc (label facing up), then close the tray.
Insert a different disc.
If you are running a version of
Windows that was pre-installed by Compaq, remove the drive from the MultiBay and reinsert it.
If you are running a version of
Windows that was not pre­installed by Compaq, turn off the computer. Then remove the drive from the MultiBay and reinsert it.
Table 2-11
Solving Diskette Drive/SuperDisk LS-120 Drive Problems
Problem Possible Cause Solution
Drive cannot write to a diskette.
System cannot start up from diskette or SuperDisk LS-120 drive.
Diskette is not formatted. Format the diskette:
Diskette is write-protected. Use another diskette that is not
Writing to the wrong drive. Check the drive letter in your
Not enough space is left on the diskette. Drive is disabled. Enable the proper drive through
Disable diskette write ability is turned on.
A bootable diskette is not in the drive.
Diskette bootability is disabled in Computer Setup.
If you are using Windows 95 or Windows 98:
1. From the Windows desktop, select My Computer.
2. Select 3.5-in. Floppy (A).
3. Select File, then Format.
4. Fill in the appropriate information, then select Start.
If you are using Windows NT 4.0, format the diskette by entering format a: at the system prompt.
write-protected or disable the write-protect feature.
path statement. Save the information to another diskette.
Device Manager. Run Computer Setup. Select the Storage icon. Make sure Disable diskette write ability is not checked. Verify that a diskette with the necessary system files is in the drive. Enable diskette bootability in Computer Setup, Security menu.
2-16 Troubleshooting
Page 46
Table 2-12
Solving Hard Drive Problems
Problem Possible Cause Solution
Accessing information on the hard drive is much slower than usual.
Hard drive does not work. Hard drive is not seated
Errors occur after starting from an additional hard drive.
System does not recognize a hard drive.
DriveLock settings cannot be accessed in Computer Setup.
Hard drive entered low power state due to timeout and is now exiting from it.
Hard drive is fragmented/not optimized or has errors.
properly.
Additional hard drive has not been specially prepared with necessary software.
The drive is not seated properly.
The drive is damaged. Try using the hard drive in
The drive was inserted while system was on or in Suspend or Hibernation.
The DriveLock settings are accessible only when you enter Computer Setup by turning on (not restarting) the computer.
Wait for the system to restore the previously saved data to its state prior to initiating a low power state.
Run ScanDisk and Disk Defragmenter.
Turn off and unplug the computer, remove the hard drive, and reinsert the hard drive.
Boot from the original hard drive or a specially prepared hard drive.
Remove, then reinsert the drive.
another bay to verify that the problem is with the drive. Run ScanDisk on the drive.
Shut down the computer before inserting removing a hard drive.
Completely turn off the computer. Turn the computer back on, then run Computer Setup by pressing F10 when the blinking cursor light appears upper-right on the screen.
Troubleshooting 2-17
Page 47
Table 2-13
Solving Infrared Problems
Problem Possible Cause Solution
Cannot communicate with another computer.
Cannot communicate with another computer (cont.)
Cannot transmit data. Direct sunlight, fluorescent
The appropriate software is not running on both computers.
The other computer does not have an IrDA-compliant infrared port. Your Compaq computer uses the IrDA communications protocol.
The pathway between the infrared ports is obstructed, one port is more than 30 degrees (plus or minus 15 degrees off the center line) from the other, or the ports are more than one meter apart. There is an interrupt request (IRQ) conflict.
There is a baud rate conflict. Select the same baud rate for
There is a conflict with the # bits. There is a stop byte conflict. Select the same stop byte for
There is a parity conflict. Select the same parity setting for
light, or flashing incandescent light is close to the infrared connections. There is interference from other wireless devices.
There is a physical obstruction in the way.
One of the units was moved during data transmission. The orientation of the units is wrong. The distance between the units is too great.
Install the appropriate software on the second device, start the second device, and start the program on both computers. Communication between infrared devices must use the same communications protocol. Check the manufacturer’s instructions for connecting with infrared devices or try connecting with a device you know to be IrDA-compliant. Remove the obstruction, align the infrared ports to within 30 degrees, and position computers within 1.5 feet (about 0.5 meter) of each other.
Check for IRQ conflicts in the Device Manager If two devices have the same IRQ address, reassign one of the devices.
both computers. Select the same # bits setting for both computers.
both computers.
both computers. Remove the interfering light source(s).
Keep remote control units such as wireless headphones and other audio devices away from the infrared connections. Do not place objects that will interfere with a line-of-sight data transmission between the two units. Do not move either unit during data transmission. Adjust the devices so that they point directly at each other. Verify that devices are not more than 1.5 feet (0.5 meter) apart.
Continued
2-18 Troubleshooting
Page 48
Table 2-13
Continued
Problem Possible Cause Solution
Infrared port doesn’t work. Direct sunlight, fluorescent
light, or flashing incandescent light is close to the infrared connections.
There is interference from other wireless devices.
IR has been disabled. Run IR configuration utility in
Remove the interfering light source(s).
Keep remote control units such as wireless headphones and other audio devices away from the infrared connections.
Control Panel.
Table 2-14
Solving Keyboard Problems
Problem Possible Cause Solution
Screen is blank and keyboard is working.
Embedded numeric keypad on computer keyboard is disabled.
A screen timeout has been initiated..
QuickLock/QuickBlank has been initiated
LCD has been disabled. Press Fn+F4 to cycle from
Num Lock function is not turned on
Press any key to refresh the screen.
To enable the keyboard and return your information to the screen, enter your power-on password.
external monitor to internal LCD. Press Fn+Num Lk to enable the
Num Lock function and embedded numeric keypad.
Table 2-15
Solving Modem Problems
Problem Possible Cause Solution
Modem loses connection. The cable connection from the
phone line to the modem is loose. Call Waiting has not been disabled.
There is noise or excessive traffic on the phone line.
Modem not responding Modem is not set up correctly
in system BIOS.
Check to make sure the telephone cable is properly connected. Disable Call Waiting:
1. Select Start Setting Control Panel select Modems.
2. From the General tab of the Modems Properties page, select Dialing Properties.
From the My Locations tab of the Dialing Properties page, check the box labeled This location has call waiting. Select *70, 70#, or 1170 from the drop-down list to disable call waiting. Try connecting at a later time.
Check the computer BIOS setup. If it requires specific settings for modems, be sure that they have been enabled.
Continued
Troubleshooting 2-19
Page 49
Table 2-15
y
Continued
Problem Possible Cause Solution
Modem does not dial correctly.
Characters are
garbled/transfer rates are slow.
Phone line noise causing a disconnection.
No dial tone Phone service is not
Telephone number is not entered correctly in the modem’s dialing software.
There is noise in the
telephone line.
Hang-up Delay S Register (S10) set too low.
connected to the telephone wall jack.
The modem is not responding to commands from the computer keyboard.
Make sure the telephone
number you dialed is correct if you are using the dialing director
Dial 1 if using dialing long
distance.
The other line could be busy or
not answering.
Make sure call waiting is
disabled.
The modem may not recognize
an international dial tone. Try the ATX3DT command and the telephone number.
Check your telephone and
modem cable connections. If they are a little loose, they can cause noise on the line.
Check with your local
telephone company for a
phone line filter. Change S10 default to 150. To set S10=150:
1. Select Start Programs Accessories HyperTerminal, then go to Command Mode.
2. Type ATS10=150 and press
Enter.
This command causes the modem to take longer to disconnect even if there is noise on the line. Verify that service from the local phone company by following these steps:
1. Unplug the telephone cable from the telephone wall jack.
2. Connect a telephone to the jack, pick up the handset, and listen for a dial tone. If there is a dial tone, reconnect the modem to the telephone wall jack with the telephone cable and make sure all connections are secure.
3. If there is still no dial tone, contact your local phone company or building manager.
Verify the modem and computer are connected:
1. Select Start Programs Accessories HyperTerminal, then go to Terminal Mode.
2. Type AT and press the Enter key. If the modem displays OK, the modem and computer are working together. If the modem displays ERROR, or does not respond, restart the computer and repeat step 1.
3. Type ATDT and listen for dial
or the terminal mode.
2-20 Troubleshooting
Page 50
tone.
4. Type ATH0 to hang up.
Continued
Troubleshooting 2-21
Page 51
Table 2-15
y
Continued
Problem Possible Cause Solution
Modem does not connect at highest speed.
Line conditions in your area or in the area you are calling may not support the highest connect speeds.
Another device on your telephone line may be causing interference.
The service or site called does not support 56K or supports an incompatible 56K implementation.
There is noise on the telephone line.
The telephone line does not support 56K implementation.
Have your telephone line checked by your local telephone service provider.
dialing an alternate telephone
Tr number for the service you are using.
Hang up an extension telephone and disconnect any other devices that may be using the same telephone line, then redial.
An internal modem supports K56flex.
To find an Internet service provider (ISP) that supports K56flex, go the Compaq Web site at www.compaq.com.
The 56K protocol of an internal modem will fall back to lower speeds if the telephone line is too noisy for a high-speed connection.
Try using another telephone line.
Change the Hang-up Delay S Register:
1. Select Start Programs Accessories HyperTerminal.
2. Go to Command Mode, type ATS10=150, then press Enter.
NOTE: This command causes the modem to take longer to disconnect even if there is no noise on the line.
The 56K protocol requires that the telephone line contain no more than one analog-to-digital conversion.
Try connecting from an alternate site.
Table 2-16
Solving PC Card Problems
Problem Possible Cause Solution
Computer does not beep when a PC Card is inserted.
PC Card is not inserted properly.
Speakers are turned off or volume is turned down.
PC Card or card driver is not PCMCIA compliant.
Try reinserting the card. Ensure that the PC Card is inserted in the correct orientation. Insert the card gently to prevent damage to the pins.
Adjust the volume control on the computer.
Contact your Compaq authorized dealer, reseller, or service provider for a list of PC Cards tested successfully in Compaq PC Card platforms.
2-22 Troubleshooting
Page 52
Continued
Troubleshooting 2-23
Page 53
Table 2-16
Continued
Problem Possible Cause Solution
Computer beeps only once when a PC Card is inserted.
Network PC Card does not work.
Storage PC Card does not work.
The computer beeps once to indicate that a PC Card is recognized but not properly configured.
Necessary drivers are not installed (turned on).
PC Card is not fully inserted or is upside down.
Network PC Card or driver is not PCMCIA compliant.
SRAM and flash memory PC Cards require the memory card driver to be loaded.
You are trying to access the storage PC Card using the wrong drive letter.
The PC Card is not formatted. For memory cards, run MCFORMAT
The card is not supported. Contact your Compaq authorized
Storage cards, such as SRAM, do not work in the expansion base.
Before a new PC Card can be used, it may be necessary to perform an initial setup procedure. Follow the PC Card manufacturer's instructions for formatting a hard drive card or installing PC Card-specific drivers for a network card.
Refer to the instructions that came with the PC Card or contact the vendor for information on installing the correct drivers.
Ensure the PC Card is inserted correctly.
Contact your Compaq authorized dealer, reseller, or service provider for a list of PC Cards tested successfully in Compaq PC Card platforms.
Memory cards can only be accessed using DOS real mode drivers.
If you are running Windows 95, change the drive letter assignment in Device Manager
If you are running Windows NT
4.0, change the drive letter assignment through the Control Panel.
in MS-DOS Mode to format the PC Card. For ATA cards, run ATAINIT, then run MCFORMAT in MS-DOS Mode to format the PC Card.
dealer, reseller, or service provider for a list of PC Cards tested successfully in Compaq PC Card platforms.
Use the storage card in the computer.
2-24 Troubleshooting
Page 54
Table 2-17
Solving Power Problems
Problem Possible Cause Solution
Computer will not turn on. Battery is discharged and
computer is not connected to a power source.
Battery is discharged and
cables to the external power source are unplugged.
Computer turned off
while it was left unattended.
Computer initiated because
of a critical low battery condition.
The computer initiated
Hibernation after a user­defined timeout expired.
Charge the battery pack.
Replace the battery pack.
Connect the computer to an
external power source.
Ensure that cables connecting the
computer and the external power source are plugged in properly.
Charge the battery pack.
Replace the battery pack.
Connect the computer to an
external power source.
Turn on the computer.
Table 2-18
Solving Screen Problems
Problem Possible Cause Solution
Characters on computer
display are dim.
You may have a screen saver
Screen timeout was initiated. Press any key to light the screen. System initiated Suspend
Computer initiated a low
Power Management, which
Computer screen is blank and external monitor displays information.
Fn+F4 hotkey combination does not switch between internal and external displays.
Computer is in direct light.
The brightness control is not
set properly.
Move the computer or adjust the
screen.
Adjust the brightness control by
pressing the Fn+F10 hotkeys.
Press any key to refresh the
or screen blanking utility installed.
screen.
Press the suspend button to exit
after a user-defined timeout expired.
battery Suspend or Hibernation.
controls Suspend and Hibernation, is disabled and the battery pack has discharged.
Display was switched to the external monitor.
Display switch is stuck. Tap the switch. CRT or other display device is
not connected properly.
Suspend.
Replace the battery pack and
exit Suspend or Hibernation.
Connect the computer to an
external power source and exit Suspend or Hibernation.
Replace the battery pack and
turn on the computer.
Connect the computer to an
external power source and turn on the computer.
Press Fn+F4 to display information on the computer screen; press Fn+F4 again to display information simultaneously on both screens.
Check your connections to ensure that an external device is connected properly.
Troubleshooting 2-25
Page 55
Table 2-19
Solving USB Problems
Problem Possible Cause Solution
External device connected to a USB connector does not work.
External device connected to USB connector does not work during startup (before Windows 95 loads).
External devices in lower tiers do not work.
The operating system limits external devices connected by USB to two tiers which can include no more than two hubs on the first tier and no more than one keyboard and one pointing device on the first or second tier.
During startup, only two tiers are supported by the USB port. These tiers can include no more than two hubs on the first tier and no more than one keyboard and one pointing device on the first or second tier.
An unpowered hub is connected to another unpowered hub.
Reduce the number of connected external USB devices to no more than two hubs on the first tier, and no more than one keyboard and one pointing device on the first or second tier.
Use the external device only after Windows 95 or Windows 98 has loaded.
Reduce the number of connected external USB devices to no more than two hubs on the first tier, and no more than one keyboard and one pointing device on the first or second tier.
Use only powered hubs. Make sure that all unpowered
hubs are immediately preceded by powered hubs in the USB chain.
2-26 Troubleshooting
Page 56
chapter
3
ILLUSTRATED PARTS CATALOG
This chapter provides an illustrated parts breakdown and a reference for spare part numbers and option part numbers for the Compaq Armada E700 Series of Personal Computers.
3.1 Serial Number Location
When ordering parts or requesting information, provide the computer serial number and model number located on the bottom of the computer (Figure 3-1).
Figure 3-1. Serial Number Location
Illustrated Parts Catalog 3-1
Page 57
3.2 Computer System Major Components
Figure 3-2. Computer System Major Components
3-2 Illustrated Parts Catalog
Page 58
Table 3-1
y
/
Spare Parts: Computer System Major Components
Item Description Spare Part
Number
1 Display assembly
2 Keyboard assembly with TouchPad 122279-XX1
3 CPU cover without TouchPad 127226-001 4 Removable hard drive
5a 5b
6 Fan (includes isolator) 127225-001 7 Power supply, 50W, internal
8 Auxiliary battery 220807-001 9 Audio board 386958-001 10 System board and Intel 500-MHz Pentium III processor board with
11 Mini PCI riser board 386954-001 12 Universal Serial Bus (USB) board 386956-001 13 Base assembly (includes base assembly, I/O bracket, PC Card
14 Battery pack, Li-ion (8 cell) 354233-001 15 MultiBay battery pack (6 cell)
15.1-inch, CTFT, XGA
14.1-inch, CTFT, XGA
Belgian Brazilian Danish French French
Canadian German Hungarian
Keyboard assembly with EasyPoint IV pointing device 122279-XX2
Belgian Brazilian Danish French French
Canadian German Hungarian
18.0 GB
15.0 GB
10.0 GB
Miscellaneous Plastics/Hardware Kit, includes:
hard drive tray memory expansion expansion cover expansion connector shield (not illustrated) display ground clip (not illustrated)
Power supply, 50W, external
MMX technology (includes heat sink)
System board and Intel 400-MHz Pentium II processor board with
MMX technology (includes heat sink)
doors, hard drive release latch, battery bay release latch, and front and rear MultiBay release latches)
Dual-MultiBa 3-volt lithium disk cell battery (not illustrated) 117099-001 Power cord (not illustrated) 314957-XXX
Australian Danish European
-181
International
-201
Italian
-081
Japanese
-051
Latin American
-121
-041
-211
-182
-202
-082
-052
-122
-042
-212
battery pack (12 cell)
-011
-081
-002
Spanish Norwegian Portuguese
International Italian Japanese Latin American
Spanish Norwegian Portuguese
French/German
Swiss
Italian Japanese
-021
-061
-291
-161
-091
-131
-022
-062
-292
-162
-092
-132
-111
-061
-291
Spanish Swedish Swiss Taiwanese U.K. English U.S. English
Spanish Swedish Swiss Taiwanese U.K. English U.S. English
Korean U.K. English/Asia
Pacific/Hong Kong
U.S. English
127224-001 127223-001
-071
-101
-111
-AB1
-031
-001
-072
-102
-112
-AB2
-032
-002
164657-001 172805-001 341841-001 127230-001
354234-001 101898-001
386959-003
386959-001
149812-001
100680-001 354232-001
-AD1
-031
-001
Illustrated Parts Catalog 3-3
Page 59
3.3 Miscellaneous Plastics/Hardware Kit Components
Figure 3-3. Miscellaneous Plastics/Hardware Kit Components
Table 3-2
Miscellaneous Plastics/Hardware Kit Components
Spare Part Number 127230-001
Item Description
1 2 Expansion connector shield 3 Hard drive tray 4 Memory expansion cover
Display ground clip
3-4 Illustrated Parts Catalog
Page 60
3.4 Mass Storage Devices
Figure 3-4. Mass Storage Devices
Table 3-3
Spare Parts: Mass Storage Devices
Item Description Spare Part
Number
1 Hard drive
2 24-speed Max CD-ROM drive 315082-002 3 4-speed Max DVD-ROM drive 102266-001 4 Diskette drive, 1.44 MB, 3.5 inch 135233-001 5 LS-120 SuperDisc drive (available only as an option) 327456-003
18.0 GB
15.0 GB
10.0 GB
164657-001 172805-001 341841-001
Illustrated Parts Catalog 3-5
Page 61
3.5 Miscellaneous
Table 3-4
Spare Parts: Miscellaneous (not illustrated)
Description Spare Part
Number
MultiBay battery pack Dual MultiBay battery pack Memory expansion board
256 MB 128 MB 64 MB
32 MB Type II V.90 56Kbps Mini PCI modem card 127735-001 Type II V.90 56Kbps Mini PCI combination modem/network interface card
(NIC) Cables
Automobile Power Adapter/Charger cable
Aircraft Power Adpter cable
Composite TV cable Armada E700 Miscellaneous Screw Kit 127232-001
Maintenance & Service Guide
100680-001 100045-001
167136-001 135244-001 135243-001 135242-001
127736-001
102257-001 102259-001 102260-001
127233-001
3-6 Illustrated Parts Catalog
Page 62
chapter
4
REMOVAL AND REPLACEMENT PRELIMINARIES
This chapter provides essential information for proper and safe removal and replacement service.
4.1 Tools Required
You will need the following tools to complete the removal and replacement procedures:
Magnetic Torx T-8 screwdriver (for all screws unless otherwise specified)
9/32-inch socket for bushing guides
3/16-inch socket for standoff and screwlocks
4.2 Service Considerations
Listed below are some of the considerations that you should keep in mind during disassembly and assembly procedures.

Plastic Parts

Using excessive force during disassembly and reassembly can damage plastic parts. Use care when handling the plastic parts. Apply pressure only at the points designated in the maintenance instructions.
IMPORTANT: As you remove each subassembly from the computer, place it (and all
accompanying screws) away from the work area to prevent damage.
Removal and Replacement Preliminaries 4-1
Page 63

Cables and Connectors

Cables must be handled with extreme care to avoid damage. Apply only the tension required to unseat or seat the cables during removal and insertion. Handle cables by the connector whenever possible. In all cases, avoid bending, twisting, or tearing cables. Ensure that cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced. Handle flex cables with extreme care; they tear easily.
CAUTION: When servicing the computer, ensure that cables are placed
in their proper location during the reassembly process. Improper cable placement can damage the computer.
4.3 Preventing Damage to Removable Drives
Removable drives are fragile components that must be handled with care. To prevent damage to the computer or a removable drive, or loss of information, observe these precautions:
Before removing or inserting a hard drive, shut down the computer. If you are
unsure whether the computer is off or in Hibernation, turn the computer on, then shut it down.
Before removing a diskette drive, CD-ROM drive, SuperDisk LS-120 drive, or a
DVD-ROM drive, ensure that a diskette or disc is not in the drive. Ensure that the drive tray is closed.
Before handling a drive, ensure that you are discharged of static electricity. While
handling a drive, avoid touching the connector.
Handle drives on surfaces that have at least one inch of shock-proof foam.
Avoid dropping drives from any height onto any surface.
Do not use excessive force when inserting a drive into a drive bay.
Avoid exposing a hard drive to products that have magnetic fields such as monitors
or speakers.
Avoid exposing a drive to temperature extremes or to liquids.
If a drive must be mailed, ship it in a suitable form of protective packaging.
Shipping the drive in standard packaging may not cushion it from destructive shock, vibration, temperature, or humidity. Place a mailing label with the wording “Fragile: Handle With Care” on the mailer.
After the hard drive has been removed from the computer, avoid turning the hard
drive and tray upside down. The drive is not secured to the tray and can fall out.
Do not place labels on the ventilation area on the hard drive.
Heed the labels on the hard drive.
4-2 Removal and Replacement Preliminaries
Page 64
4.4 Preventing Electrostatic Damage
Many electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure determine the degree of sensitivity. 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.
A sudden discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge 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.

Packaging and Transporting Precautions

Use the following grounding precautions when packaging and transporting equipment:
To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes.
Protect all electrostatic-sensitive parts and assemblies with conductive or approved containers or packaging.
Keep electrostatic-sensitive parts in their containers until they arrive at static-free workstations.
Place items on a grounded surface before removing them from their container.
Always be properly grounded when touching a sensitive component or assembly.
Place reusable electrostatic-sensitive parts from assemblies in protective packaging
or non-conductive foam.
Use transporters and conveyers made of antistatic belts and roller bushings. Ensure that mechanized equipment used for moving materials is wired to ground, and that proper materials were selected to avoid static charging. When grounding is not possible, use an ionizer to dissipate electric charges.
Removal and Replacement Preliminaries 4-3
Page 65

Workstation Precautions

Use the following grounding precautions at workstations:
Cover the workstation with approved static-dissipative material (refer to Table 4-2 later in this chapter).
Use a wrist strap connected to a properly grounded work surface and use properly grounded tools and equipment.
Use field service tools, such as cutters, screwdrivers, and vacuums that are conductive.
When using fixtures that must directly contact dissipative surfaces, use fixtures made of static-safe materials only.
Keep work area free of nonconductive materials such as ordinary plastic assembly aids and Styrofoam.
Handle electrostatic-sensitive components, parts, and assemblies by the case or PCM laminate. Handle them only at static-free workstations.
Avoid contact with pins, leads, or circuitry.
Turn off power and input signals before inserting or removing connectors or test
equipment.
4-4 Removal and Replacement Preliminaries
Page 66

Grounding Equipment and Methods

Grounding equipment 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. 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 the skin. On grounded mats with banana-plug connectors, connect a wrist strap with alligator clips.
When standing, use foot straps and a grounded floor mat. Foot straps (heel, toe, or boot straps) can be used at standing workstations and are compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, use them on both feet with a minimum of one-megohm resistance between the operator and ground. To be effective, the conductive strips must be worn in contact with the skin.
Other grounding equipment recommended for use in preventing electrostatic damage include:
Antistatic tape
Antistatic smocks, aprons, or sleeve protectors
Conductive bins and other assembly or soldering aids
Non-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
Material-handling packages
Non-conductive plastic bags, tubes, or boxes
Metal tote boxes
Removal and Replacement Preliminaries 4-5
Page 67

Electrostatic Voltage Levels and Protective Materials

Table 4-1 shows how humidity affects the electrostatic voltage levels generated by different activities.
Table 4-1
Typical Electrostatic Voltage Levels
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
NOTE: 700 volts can degrade a product.
Table 4-2 lists the shielding protection provided by antistatic bags and floor mats.
Table 4-2
Static-Shielding Materials
Material Use Voltage Protection Level
Antistatic plastic Bags 1,500 V Carbon-loaded plastic Floor mats 7,500 V Metallized laminate Floor mats 15,000 V
4-6 Removal and Replacement Preliminaries
Page 68
chapter
5
REMOVAL AND REPLACEMENT PROCEDURES
5.1 Serial Number
The computer serial number should be reported to Compaq when requesting information or ordering spare parts. The serial number is located on the bottom of the computer (Figure 5-1).
Figure 5-1. Serial Number Location
Removal and Replacement Procedures 5-1
Page 69
5.2 Disassembly Reference Chart
Use the chart below to determine the section number to be referenced when removing components from the computer.
5.3 Preparing the Computer for Disassembly Undocking the Computer from the
Compaq Expansion Base
Undocking the Computer from the
Compaq Convenience Base
Disconnecting the Computer
5.4 Computer Feet
5.5 Battery Packs
Removing a Battery Pack from the Battery Bay Removing a Battery Pack from the MultiBay
Removing a MultiBay Battery Pack
Removing a Dual-MultiBay Battery Pack Inserting a Battery Pack into the Battery Bay Inserting a MultiBay Battery Pack Inserting a Dual-MultiBay Battery Pack
5.6 Hard Drives Removing a Hard Drive from the Hard Drive Bay Inserting a Hard Drive into the Hard Drive Bay Removing a Hard Drive from the MultiBay Inserting a Hard Drive into the MultiBay
5.7 MultiBay Devices Removing MultiBay Devices Inserting MultiBay Devices
5.8 PC Cards Removing a PC Card Inserting a PC Card
5.9 Memory Expansion Removing the Memory Expansion Compartment
Cover Removing a Memory Expansion Board Installing a Memory Expansion Board Replacing the Memory Expansion Compartment
Cover
5.10 Keyboard Assembly
5.11 CPU Cover
5.12 Power Supply
5.13 Fan Assembly
5.14 Audio Board
5.15 Lithium Disk Cell Battery
5.16 Auxiliary Battery
5.17 Mini PCI Riser Board Installing a Modem, LAN, or Combo Board
5.18 USB Board
5.19 Display Assembly
5.20 System Board
Figure 5-2. Computer Disassembly Sequence Chart
5-2 Removal and Replacement Procedures
Page 70
5.3 Preparing the Computer for Disassembly
1. Undock the computer from the Compaq Expansion Base or Compaq Convenience Base.
2. Disconnect power and external devices.
3. Remove battery packs inserted into the battery bay or MultiBay (Section 5.6).
4. Remove PC Cards.
If the computer is not docked in an Compaq Expansion Base or Compaq Convenience Base, go to the "Disconnecting the Computer" section. If the computer is docked, go to the "Undocking the Computer from the Compaq Expansion Base" or "Undocking the Computer from the Compaq Convenience Base" section.

Undocking the Computer from the Compaq Expansion Base

1. Unlock the Compaq Expansion Base keylock.
2. Shut down the computer
3. Close the computer.
1
4. Press the eject button Compaq Expansion Base
. The computer separates from the docking connector on the
2
(Figure 5-3).
Figure 5-3. Undocking the Computer from the Compaq Expansion Base
5. Slide the computer out of the Compaq Expansion Base.
Removal and Replacement Procedures 5-3
Page 71

Undocking the Computer from the Compaq Convenience Base

1. Shut down the computer.
2. Close the computer.
1
3. Lift the docking lever and slide it forward docking connector on the Compaq Convenience Base
. The computer separates from the
2
(Figure 5-4).
Figure 5-4. Undocking the Computer from the Compaq Convenience Base
4. Slide the computer away from the Compaq Convenience Base and remove it.
5-4 Removal and Replacement Procedures
Page 72

Disconnecting the Computer

If the computer is docked in an Compaq Expansion Base or Compaq Convenience Base, refer to the "Undocking the Computer" section. If the computer is not docked in an Compaq Expansion Base or Compaq Convenience Base, refer to Figure 5-5 and follow these steps to disconnect the computer:
1. Shut down the computer.
2. Close the computer.
3. Position the computer so the rear panel faces forward.
4. Disconnect the power cord from the wall outlet
5. Disconnect the power cord from the computer
1
.
2
.
Figure 5-5. Disconnecting the Computer
6. Turn off and disconnect external devices.
Removal and Replacement Procedures 5-5
Page 73
5.4 Computer Feet
The computer feet are oblong, adhesive-backed rubber pads. The computer feet are included in the Miscellaneous Hardware Spare Kit.
Install the feet by removing the protective covering from the adhesive back and attaching the feet to the bottom of the computer (Figure 5-6).
Figure 5-6. Installing the Computer Feet
5-6 Removal and Replacement Procedures
Page 74
5.5 Battery Packs
WARNING: To reduce the risk of injury or damage to the battery pack, do not
!
crush, puncture, or incinerate the battery pack or short the metal contacts. Do not attempt to open or service the battery pack.

Removing a Battery Pack from the Battery Bay

CAUTION: To prevent loss of work while replacing a battery pack that is the
only power source available to the system:
Press the suspend button before removing the discharged battery pack.
Insert the replacement battery within five minutes after removing the
discharged battery pack.
NOTE: Only the primary battery pack and an Armada 7800 primary battery pack can used in the battery bay.
1. If the computer is turned on, the MultiBay does not contain a charged battery pack, and the system is not connected to external power, initiate Suspend (Standby) by pressing the suspend button.
NOTE: Extensive drive activity may delay Suspend (Standby). The computer screen
clears and the power/suspend light begins to flash when Suspend (Standby) is initiated.
If the computer is turned off or in Suspend or Hibernation, proceed to Step 2.
Removal and Replacement Procedures 5-7
Page 75
2. Tilt the computer at an angle 1 so the bottom of the computer is accessible (Figure 5-7).
2
3. Slide the battery release latch toward the back of the computer
3
4. Grasp the device using the recess
beneath the battery bay and remove the
.
battery pack.
Figure 5-7. Removing a Battery Pack from the Battery Bay
5-8 Removal and Replacement Procedures
Page 76

Removing a Battery Pack from the MultiBay

CAUTION: To prevent loss of work while replacing a battery pack that is the
only power source available to the system:
Press the suspend button before removing the discharged battery pack.
Insert the replacement battery within five minutes after removing the
discharged battery pack.
NOTE: A MultiBay battery pack can be used in the bottom MultiBay. A Dual-MultiBay battery pack can also be used in the MultiBay, occupying both the top and bottom MultiBays. A primary battery pack cannot be used in the MultiBay.
Removing a MultiBay Battery Pack
1. If the computer is turned on, the battery bay does not contain a charged battery pack, and the system is not connected to external power, initiate Suspend (Standby) by pressing the suspend button.
NOTE: Extensive drive activity may delay Suspend (Standby). The computer screen
clears and the power/suspend light begins to flash when Suspend (Standby) is initiated.
If the computer is turned off or in Suspend or Hibernation, proceed to Step 2.
Removal and Replacement Procedures 5-9
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2. Tilt the computer at an angle 1 so the bottom of the computer is accessible (Figure 5-8).
2
3. Slide the front MultiBay release latch
4. Grasp the MultiBay battery pack using the recess
toward the back of the computer.
3
beneath the battery bay and
remove the MultiBay battery pack.
Figure 5-8. Removing a MultiBay Battery Pack
Removing a Dual-MultiBay Battery Pack
1. If the computer is turned on, the battery bay does not contain a charged battery pack, and the system is not connected to external power, initiate Suspend (Standby) by pressing the suspend button.
NOTE: Extensive drive activity may delay Suspend (Standby). The computer screen
clears and the power/suspend light begins to flash when Suspend (Standby) is initiated.
If the computer is turned off or in Suspend or Hibernation, proceed to Step 2.
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2. Tilt the computer at an angle 1 so the bottom of the computer is accessible (Figure 5-9).
2
3. Slide the front MultiBay release latch
4. Grasp the Dual-MultiBay battery pack using the recess
toward the back of the computer.
3
beneath the battery bay
and remove the Dual-MultiBay battery pack.
Figure 5-9. Removing a Dual-MultiBay Battery Pack
Removal and Replacement Procedures 5-11
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Inserting a Battery Pack into the Battery Bay

WARNING: To prevent damage to the computer, do not insert a battery pack
!
into the battery bay until the computer is fully reassembled.
1. With the battery pack label facing up and the battery pack contacts facing the computer, slide the battery pack into the battery bay until it clicks into place (Figure 5-10).
Figure 5-10. Inserting a Battery Pack into the Battery Bay
2. If the computer is in Suspend, press the suspend button to return to your work.
5-12 Removal and Replacement Procedures
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Inserting a MultiBay Battery Pack

WARNING: To prevent damage to the computer, do not insert a MultiBay
!
battery pack into the MultiBay until the computer is fully reassembled.
NOTE: The MultiBay battery pack can only be used in the bottom MultiBay.
1. With the battery pack label facing up and the battery pack contacts facing the computer, slide the MultiBay battery pack into the bottom MultiBay until it clicks into place (Figure 5-11).
Figure 5-11. Inserting a MultiBay Battery Pack
2. If the computer is in Suspend, press the suspend button to return to your work.
Removal and Replacement Procedures 5-13
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Inserting a Dual-MultiBay Battery Pack

WARNING: To prevent damage to the computer, do not insert a Dual-
!
MultiBay battery pack into the MultiBay until the computer is fully reassembled.
NOTE: The Dual-MultiBay battery pack can only be used in the bottom MultiBay.
1. Rotate the flap onto the top of the Dual-MultiBay battery pack and snap the flap into
1
place
(Figure 5-12).
2. With the battery pack label facing up and the battery pack contacts facing the computer, align the battery pack with the bottom MultiBay, and slide the battery
2
pack into the bottom MultiBay until it clicks into place
.
Figure 5-12. Inserting a Dual-MultiBay Battery Pack
3. If the computer is in Suspend, press the suspend button to return to your work.
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5.6 Hard Drives

Removing a Hard Drive from the Hard Drive Bay

Before removing a hard drive, back up all information on the hard drive.
1. Save all work, exit all applications, and shut down the computer.
2. Tilt the computer at an angle (Figure 5-13).
3. Slide the hard drive release latch toward the front of the computer
4. Grasp the hard drive using the recess hard drive.
1
so the bottom of the computer is accessible
3
beneath the hard drive bay and remove the
2
.
Figure 5-13. Removing a Hard Drive from the Hard Drive Bay
Removal and Replacement Procedures 5-15
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5. Lift the front edge of the metal hard drive and swing the drive out of the plastic hard drive tray (Figure 5-14).
Figure 5-14. Removing the Hard Drive from the Hard Drive Tray
6. If you are not inserting another hard drive, insert the hard drive tray into the hard drive bay until it is seated.
5-16 Removal and Replacement Procedures
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Inserting a Hard Drive into the Hard Drive Bay

1. Save all work, exit all applications, and shut down the computer.
2. Remove the hard drive tray from the hard drive bay.
1
3. Insert the metal hard drive connectors protruding through the opening in the rear of the tray
into the plastic hard drive tray 2 with the
3
(Figure 5-15).
Figure 5-15. Inserting a Hard Drive into the Hard Drive Tray
Removal and Replacement Procedures 5-17
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4. Slide the hard drive assembly into the hard drive bay (Figure 5-16).
Figure 5-16. Inserting a Hard Drive into the Hard Drive Bay
5-18 Removal and Replacement Procedures
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Removing a Hard Drive from the MultiBay

Before removing a hard drive, back up all information on the hard drive.
1. Save all work, exit all applications, and shut down the computer.
2. Tilt the computer at an angle
(Figure 5-17).
3. If a 12.7-mm Armada MultiBay hard drive adapter is being removed from the top
MultiBay, slide the rear MultiBay release latch
4. Grasp the hard drive assembly using the recess
remove the hard drive assembly from the computer.
5. If a 17-mm Dual-MultiBay Hard Drive Adapter is being removed, or if a 12.7-mm
Armada MultiBay hard drive adapter is being removed from the bottom MultiBay, slide the front MultiBay release latch
6. Grasp the hard drive assembly using the recess
remove the hard drive assembly from the computer.
1
so the bottom of the computer is accessible
2
toward the front of the computer.
4
beneath the MultiBay and
3
toward the back of the computer.
4
beneath the MultiBay and
Figure 5-17. Removing a Hard Drive Assembly from the MultiBay
If you are not inserting another drive or a battery pack into the MultiBay, insert the MultiBay weight saver included with the computer.
Removal and Replacement Procedures 5-19
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Inserting a Hard Drive into the MultiBay

If you are moving a hard drive from the hard drive bay to the MultiBay, remove the hard drive from the hard drive tray. Refer to the “Removing a Hard Drive from the Hard Drive Bay” section in this chapter for more information.
A 17-mm hard drive must be inserted into a Dual-MultiBay Hard Drive Adapter before being inserted into the computer MultiBay. A 12.7-mm hard drive can be inserted into either a Dual-MultiBay Hard Drive Adapter or an Armada MultiBay hard drive adapter before being inserted into the computer MultiBay(s).
1. Save all work, exit all applications, and shut down the computer.
2. Push back and hold the slide tab and 5-19).
2
3. Lower the hard drive
into the adapter.
4. Slide the hard drive toward the connector are seated.
1
on the hard drive MultiBay adapter (Figures 5-18
3
in the adapter until the connectors
Figure 5-18. Inserting a 17-mm Hard Drive into a Dual- MultiBay Hard Drive Adapter
5-20 Removal and Replacement Procedures
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Figure 5-19. Inserting a 12.7-mm Hard Drive into a 12.7-mm Armada MultiBay Hard Drive
Adapter
5. Release the slide tab.
6. Slide the hard drive assembly into the MultiBay with the bezel facing out.
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5.7 MultiBay Devices

Removing MultiBay Devices

1. Save all work, exit all applications, and shut down the computer.
2. Remove the media (diskettes, CD-ROMs, etc.) from the drive. Ensure that the CD tray is closed.
1
3. Tilt the computer at an angle (Figure 5-20).
4. To remove a device from the top MultiBay, slide the rear MultiBay release latch toward the front of the computer
5. To remove a device from the bottom MultiBay or to remove a device that occupies both MultiBays, slide the front MultiBay release latch computer.
6. Grasp the device using the recess
so the bottom of the computer is accessible
2
.
3
toward the back of the
4
beneath the MultiBay and remove the device.
Figure 5-20. Removing a Device from the MultiBays
If you are not inserting another device or a battery pack into the MultiBay, insert the MultiBay weight saver included with the computer.
5-22 Removal and Replacement Procedures
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Inserting MultiBay Devices

1. Save all work, exit all applications, and turn off the computer.
2. Remove the media (diskettes, CD-ROM’s, etc.) from the drive to be inserted in the MultiBay. Ensure that the CD tray is closed.
3. With the bezel facing out, slide the drive into the MultiBay until it clicks into place (Figure 5-21).
Figure 5-21. Inserting a Device into a MultiBay
Removal and Replacement Procedures 5-23
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5.8 PC Cards
The procedure for removing PC Cards varies with the operating system being used and with the kind of PC Card being removed.
If Windows 95/98 is running:
A PC Card can be removed while the computer is on or off.
The PC Card icon appears in the system tray on the Windows taskbar only while a
PC Card is inserted.
If Windows NT is running:
Some PC Cards, such as modem, ATA, flash, and SRAM cards, can be removed while the computer is on. However, the computer must be shut down before removing other PC Cards, such as LAN and SCSI cards. For removal information about a particular PC Card, refer to the documentation that came with the card and the Help program with CardWare.
CardWare displays the PC Card icon on the system tray on the Windows taskbar whether or not a PC Card is inserted. The CardWare program is available on your Windows NT Workstation 4.0 system if you need Plug and Play functionality for PC Cards.
To install Cardware, select > Programs > CardWare Setup > Install CardWare. Follow the instructions on the screen.
If you are using third party PC Cards that have enablers or if you do not require Plug and Play functionality, then you do not need to install CardWare.
5-24 Removal and Replacement Procedures
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Removing a PC Card

1. Prepare the computer for PC Card removal. If Windows 95 or 98 is running and the computer is turned on, you must stop the PC Card before removing it.
- Select the PC Card icon on the taskbar,
- Select the PC Card to be stopped. A message displays when the PC Card can be
safely removed.
If Windows NT 4.0 with CardWare from Compaq is running and the computer is turned on, you must turn off the computer before removing some PC Cards. Refer to the PC Card documentation for removal requirements.
1
2. Push the PC Card eject button to be ejected. The eject button extends (Figure 5-22).
3. Push the eject button a second time. The PC Card partially ejects from the PC Card slot.
4. Remove the PC Card from the PC Card slot
that corresponds to the slot containing the PC Card
2
.
Figure 5-22. Removing a PC Card
Removal and Replacement Procedures 5-25
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Inserting a PC Card

CAUTION: To prevent damage to the PC Card connectors, use minimal
pressure when inserting a PC Card into a PC Card slot.
1. With the PC Card connector facing the computer and the label facing up 1, align the
2
edges of the card with the rails
in the PC Card slot (Figure 5-23).
2. Push the PC Card into the PC Card slot until the connector is seated.
Figure 5-23. Inserting a PC Card
3. If Windows NT 4.0 with CardWare from Compaq is running and the computer is turned on, restart the computer if you are instructed to do so by the PC Card documentation or an on-screen prompt.
If you are inserting a LAN, SCSI, or multifunction PC Card, you must restart the
computer.
If you are inserting a modem, ATA, flash, or SRAM PC Card, it is usually not
necessary to restart the computer.
5-26 Removal and Replacement Procedures
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5.9 Memory Expansion

Removing the Memory Expansion Compartment Cover

The memory expansion compartment is located on the bottom of the computer. Either one or two memory expansion boards can be installed at a time.
WARNING: Failure to unplug the power cord and remove the battery pack
!
before installing a memory expansion board can damage the equipment and expose you to the risk of electrical shock.
CAUTION: Electrostatic discharge (ESD) can damage electronic components. Before beginning this procedure, ensure that you are properly grounded. For more information, refer to Appendix C, “Electrostatic Discharge.”
1. Prepare the computer for disassembly (Section 5.3).
2. Remove any battery packs (Section 5.5).
3. Turn the computer bottom side up with the front of the computer facing forward.
Removal and Replacement Procedures 5-27
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4. Remove the screw that secures the memory expansion compartment cover to the
1
computer
(Figure 5-24).
NOTE: If the computer was shipped with a preinstalled memory expansion board, the cover is attached with a tamper-resistant Torx T-10 memory security screw. Use the Torx T-10 screwdriver included with the computer to remove and reinsert this screw. If the computer was not shipped with preinstalled memory expansion boards, the cover is attached with a standard Torx T-8 screw. Use a Torx T-8 screwdriver to remove and reinstall the screw.
2
5. Slide the cover to the left
and lift the left edge up to remove it.
Figure 5-24. Removing the Memory Expansion Compartment Cover
5-28 Removal and Replacement Procedures
Page 96

Removing a Memory Expansion Board

1. Lift and hold back the memory insulator 1. The insulator is not removable (Figure 5-25).
2
2. Spread the retaining tabs apart
3. Lift the edge of the memory expansion board and slide it gently out of the memory expansion slot at a 45-degree angle
. The memory expansion board tilts upward.
3
.
Figure 5-25. Removing a Memory Expansion Board
4. Place the memory expansion board in an electrostatic-safe container.
5. If no memory expansion board is to be installed, reset the memory insulator.
6. Replace the memory expansion compartment cover and install the screw.
Removal and Replacement Procedures 5-29
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Installing a Memory Expansion Board

All memory expansion boards are asymmetrically keyed (notched) to ensure correct positioning. Memory expansion boards can be used in either memory expansion slot.
1. Insert the memory expansion board into an empty memory expansion slot at a 45-degree angle
1
(Figure 5-26).
2. Push the board into place until it is seated.
2
3. Push the memory expansion board down
until the board is seated in the plastic
retention clips.
Figure 5-26. Inserting a Memory Expansion Board
4. Run Computer Setup (Section 2.5).
5-30 Removal and Replacement Procedures
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Installing the Memory Expansion Compartment Cover

1. Reset the memory insulator 1 over the installed memory expansion board(s), ensuring that all edges of the memory insulator are tucked inside the memory expansion compartment (Figure 5-27).
2. Replace the memory expansion compartment cover memory expansion compartment, then sliding it to the right
2
by placing it flush over the
3
until it is seated.
3. Secure the memory expansion compartment cover to the computer with a memory expansion compartment cover security screw or a standard Torx T-10 screw.
Figure 5-27. Replacing the Memory Expansion Compartment Cover
Removal and Replacement Procedures 5-
31
Page 99
5.10 Keyboard Assembly
The Armada E700 Series of Personal Computers can be equipped with a keyboard with either a EasyPoint IV pointing device or a touchpad. The removal procedures are the same for both keyboards.
The keyboard assembly consists of the keyboard and the pointing device or touchpad, and is spared as a unit. This assembly must be removed to gain access to the interior components of the computer.
1. Prepare the computer for disassembly (Section 5.3).
2. Remove all battery packs (Section 5.5).
3. Remove all hard drives (Section 5.6).
4. Turn the computer bottom side up with the front facing forward.
5. Remove the screw from the bottom of the computer (Figure 5-28).
Figure 5-28. Removing the Keyboard Assembly Screw
6. Turn the computer top side up with the front facing forward.
7. Open the computer.
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8. Slide the four keyboard latches toward the front of the computer 1 (Figure 5-29).
2
9. Lift the back edge of the keyboard up and swing it forward
.
Figure 5-29. Releasing the Keyboard Assembly
Removal and Replacement Procedures 5-
33
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