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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. COMPAQ and ARMADA are registered in the U. S. Patent and Trademark Office. 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
C ONTENTS
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 2.2 2.3 2.4 2.5 Preliminary Steps .........................................................................................................................2-2 Clearing Passwords ......................................................................................................................2-3 Power-On Self-Test (POST) ........................................................................................................2-3 POST Error Messages ..................................................................................................................2-4 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 3.2 3.3 3.4 3.5 Serial Number Location ...............................................................................................................3-1 Computer System Major Components .........................................................................................3-2 Miscellaneous Plastics/Hardware Kit Components .....................................................................3-4 Mass Storage Devices ..................................................................................................................3-5 Miscellaneous...............................................................................................................................3-6
Contents
iii
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
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
vi Contents
preface
U SING T HIS G UIDE
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 wiring board. Improper repairs can create a safety hazard. Any indication of component replacement or printed wiring board modifications may void any warranty or exchange allowances. 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.
!
Preface
vii
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: I I I I I I I I 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
chapter
1
P RODUCT D ESCRIPTION
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
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 1 2 3 4 Key
1 2 3 4 5-6 7-9 10 11 12 13-14
P3 5-6
500 7-9
T 1 0
5 1 1
X 1 2
18 1314
V 1 5
C 1 6
128 1719
95 2021
N 2 2
S 2 3
F 2 4
Description
Brand designator Segment designator Series Blank Processor type Processor speed Panel type Panel size Panel resolution Hard drive size (in GB, 1-2 digits) Optical drive Integrated communication RAM (in MB, 2-3 digits) Operating system
Options
A = Armada E = Expansion 7 = 700 P3 = Intel Pentium III P2 = Intel Pentium II 500 = 500 MHz 400 = 400 MHz T = TFT 5 = 15.x" 4 = 14.x" X = XGA 18 = 18.0 GB 15 = 15.0 GB 10 = 10.0 GB
15 16
17-19 20-21
V = DVD-ROM drive C = mini-PCI combination modem/NIC 128 = 128 MB
M = mini-PCI modem card
0 = none
22 23 24
NAFTA Pointing device Security
95 = Windows 95 98 = Windows 98 58 = Windows 95/98 dual install N = NAFTA S = Pointing stick F = Fingerprint
N4 = Windows NT 4.0 2K = Windows 2000 N2 = Windows NT 4.0/2000 dual install P = TouchPad
1-2
Product Description
1 2 3 4 56 A E 7 PIII A E 7 A E 7 A E 7 A E 7 A E 7 A E 7 A E 7 A E 7 A E 7 A E 7 A E 7 PIII PIII PIII PIII PIII PII PII PII PII PII PII
7-9 50 0 50 0 50 0 50 0 50 0 50 0 40 0 40 0 40 0 40 0 40 0 40 0
1 0 T T T T T T T T T T T T
1 1 5 5 5 5 5 5 4 4 4 4 4 4
1 2 X X X X X X X X X X X X
1314 18 18 18 18 18 18 15 15 15 15 15 15
1 5 V V V V V V V V V V V V
1 6 C O C 0 C 0 C M 0 C M 0
1719 128 128 128 128 128 128 128 128 128 128 128 128
2021 3 3 5 5 4 4 3 3 3 1 1 1
2 2
2 3 S S S S S S S S S S S S
2 4
SKU# 140146xxx 140148xxx 140353xxx 140199xxx 140205xxx 140255xxx 113363xxx 113364xxx 113365xxx 113366xxx 113367xxx 113368xxx
Product Description
1-3
Features
The computer has the following standard features: I 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 I Industry-leading portable computer AGP implementation, featuring: - 66-MHz dedicated graphics bus - frame made AGP I 4-MB SGRAM (synchronous graphics) I 128-MB of SDRAM (synchronous) on system board; expandable to 640 MB I Upgradable flash ROM BIOS I 15.1- or 14.1-inch XGA (1024 × 768) TFT color displays, true color (24-bit) support I Keyboard with built-in EasyPoint IV pointing device and mouse buttons or touchpad and touchpad mouse buttons I Lithium ion (Li-ion) battery pack I Removable 18.0-, 15.0-, or 10.0-GB hard drive I MultiBay that supports a second hard drive, a second battery pack, a diskette drive, a CD-ROM drive, or a DVD-ROM drive I 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 I IrDa-compliant infrared port1 (4-Mbps standard) for wireless file transfer, printing, and file synchronization I Built-in stereo speakers featuring Compaq PremierSound, microphone, and jacks for stereo audio sound with electronic equalization and wave table synthesis I Energy Star-compliant power saving features I Ports and connectors for external equipment, including universal serial bus (USB), serial, parallel, external monitor, and PS/2-compatible pointing device or keyboard I Security features I Desktop functionality available with the optional Compaq expansion base and Compaq convenience base I Domestic and international modem and Ethernet connectivity I Integrated AC Adapter I 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
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: I Asset Management--provides detailed configuration and diagnostic information. I Fault Management--prevents, predicts, and alerts of impending hardware problems. I Security Management--protects unauthorized access to data and components. I 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
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: I 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: I Manufacturer, model, and serial number of Compaq computers, monitors, hard drives, battery packs, memory boards, processor speeds, and operating systems
I I I
Asset tag System board and ROM revision levels BIOS settings
I 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
Fault Management
Fault Management features minimize downtime and data loss by monitoring system performance and generating the following alerts: I Hard drive alert--provides 72-hour advance warning of impending hard drive problems and can automatically start optional backup software. I 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. I Battery pack alert--reports charging problems and battery pack failure. I Monitor alert--diagnoses and displays external monitor operational problems. I 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. I While the computer is connected to a network, alerts pop up on the computer display and are simultaneously reported to the network console. I 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. I 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
Security Management
Security Management features customize system security. I Power-On and Setup Passwords--prevent unauthorized access to information and computer configuration. I DriveLock--prevents unauthorized access to hard drives. I Device disabling--prevents unauthorized data transfer through modems, serial ports, parallel ports, and infrared ports on the computer and an optional docking station. I QuickLock/QuickBlank--locks the keyboard and clears the screen. I 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 Panel Power 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
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 128 MB 128 MB 128 MB 128 MB 128 MB 128 MB 128 MB 128 MB 128 MB 128 MB
Memory Expansion Board
512 (2 × 256 MB) 384 (1 × 256 MB + 1 × 128 MB)
Total Memory
640 MB 512 MB
320 (1 × 256 MB + 1 × 64 MB) 448 MB 288 (1 × 256 MB + 1 × 32 MB) 416 MB 256 (1 × 256 MB or 2 × 128 MB) 384 MB
192 (1 × 128 MB + 1 × 64 MB) 320 MB 160 (1 × 128 MB + 1 × 32 MB) 288 MB 128 (1 × 128 MB or 2 × 64 MB) 64 (1 × 64 MB or 2 × 32 MB) 32 (1 × 32 MB) 256 MB
96 (1 × 64 MB + 1 × 32 MB) 224 MB 192 MB 160 MB
Product Description
1-9
Power Equipment
The following battery options are available: I Lithium ion battery pack I Battery Charger I 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: I Two battery charging bays I Charging of one battery in 1.5 hours I 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
Mass Storage Devices
The following mass storage devices are available for the computer.
Table 1-3 Mass Storage Devices
Device
Diskette drive Hard drive CD-ROM drive DVD-ROM SuperDIsk LS-120 drive External diskette drive
Capacity
3.5-inch, 1.44 MB, 720 Kbyte, and 1.2 MB (Japanese format) 18.0, 15.0, and 10.0 GB (also available as an option) 24-Speed Max (available as an option) 4.7 GB 120 MB (available as an option) 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: I ISO-9660, the most common CD-ROM format I CD-ROM XA eXtended Architecture, a standard for storing multimedia information I Photo CD (single and multisession), Kodak's format for storing photographic images on CD-ROM I CD-i and CD-i Bridge I CD-DA (digital audio) I CD-ROM Mode 1 and Mode 2 I CD-I Mode 2 (Form 1 and Form 2) I Video CD
Product Description
1-11
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 1 2 Component
Fan Video out jack
Function
Provides airflow exhaust. 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. Accepts removable hard drive. Holds primary hard drive. Enhances sound. Attaches an optional security cable to the computer. Allows for audio input; located on the inside and outside of the display, can be used whether the computer is open or closed. Opens the computer.
3 4 5 6
Hard drive bay Audio bass port Security slot Mono microphone
7
Display release latch
1-12
Product Description
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 1 2 Component
Mono microphone jack Stereo speaker/headphone jack
Function
Connects mono microphone, disabling the built-in microphone. 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. Connects external device such as a CD player, tuner, or tape deck. Accepts Lithium ion battery pack. Supports a 12.7-mm Armada drive or a MultiBay battery pack. Supports a 12.7-mm Armada drive or a MultiBay battery pack. Also supports a 17-mm Armada hard drive or a DualMultiBay battery pack, which fills both the top and bottom MultiBays.
3 4 5 6
Stero line-in jack Battery bay Top MultiBay Bottom MultiBay
Product Description
1-13
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 1 2 Component
Audio bass port RJ-45 jack (network models only) RJ-11 jack (internal modem models only)
Function
Enhances sound. 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. Accepts 16- and 32-bit CardBus PC Cards. Eject PC Cards from the slots.
3
4 5
PC Card slots PC Card eject levers (2)
1-14
Product Description
The external components on the rear panel of the computer are shown in Figure 1-5 and described in Table 1-7.
Figure 1-5. Rear Panel Components
Table 1-7 Rear Panel Components
Item 1 2 Component
Infrared port Universal serial bus (USB) connector
Function
Provides wireless communication between the 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 unpowered hubs can be connected in any sequence, as long as two unpowered hubs are not connected next to each other. When running a lower version of Windows or Windows NT, or a different operating system, up to two hubs can be connected. Connects optional serial devices such as a mouse. Connects optional parallel devices such as a printer. Connects optional Compaq expansion base or Compaq convenience base. Connects an optional full-sized keyboard or a mouse. 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. Connects an optional external monitor or a television adapter. Connects an AC Adapter (external adapter models only), an optional Automobile Power/Adapter Charger, or an optional Aircraft Power Adapter.
3 4 5 6
Serial connector Parallel connector Docking connector Keyboard/mouse connector
7 8
External monitor connector DC power connector
Product Description
1-15
9
Power cord connector
Connects external (AC) power.
1-16
Product Description
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
1 2 3 4
Component
Numeric lock light Scroll lock light Caps lock light Display switch
Function
Turns on when the Numeric Lock function is on. Turns on when the Scroll function is on. Turns on when the Caps Lock function is on. Turns off the display if it is closed while the computer is turned on. The computer beeps unless audio has been disabled. Allow airflow to cool the computer. Moves the mouse cursor. Displays shortcut menu for item beneath mouse cursor. Produce stereo sound. 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. Used with hotkeys to perform perset hotkey functions. Turns on the caps lock function. 1 Turns the computer on or off of exits Suspend . Adjusts volume of stereo speakers. 1 Initiates or exits Suspend . When pressed with the Fn key, initiates Hibernate.
5 6 7 8 9 10 11 12 13 14 15
Vents EasyPoint IV pointing stick (pointing stick models only) Windows application key Stereo speakers Left and right mouse buttons (pointing stick models only) Scroll pointing stick button (pointing stick models only) Fn key Caps lock key Power switch Volume control 2 Suspend button
Product Description
1-17
Additional computer keyboard components are shown in Figure 1-7 and described in Table 1-9.
Figure 1-7. Keyboard Components (continued)
Table 1-9 Keyboard Components (continued)
Item
1 2 3 4 5 6 7 8 9 10 11
Component
Page up key Page down key Embedded numeric keypad Cursor-control keys Control key Touchpad (touchpad models only) Left and right touchpad buttons (touchpad models only) MultiBay drive light (green) Hard drive light (green) Power/suspend light (green) Battery power light (orange)
Function
Moves image to previous screen. Moves image to following screen. Converts keys to numeric keypad. Move the cursor around the screen. Used with selected alphabetic keys to access File and Edit menu options. Moves the mouse cursor, selects, and activates. Function like the left and right mouse buttons on an external mouse. Turns on when a MultiBay device is being accessed or a battery pack in the MultiBay is charging or waiting to be charged. Turns on when the hard drive is being accessed. Turns on when computer is turned on; blinks in Suspend; turns off when computer is in Hibernation or turned off. Turns on when a battery pack in the battery bay is 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). Displays the Windows Start menu. Perform preset functions.
12 13
Microsoft logo key F1 through F12 function keys
1-18
Product Description
Product Description
1-19
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 1 Component
Tilt feet latches
Function
Release the tilt filt. NOTE: To close the tilt feet, press the feet against the bottom of the computer. Tilt the computer for ease of use. Covers the memory expansion compartment. Releases the hard drive from the hard drive bay. Releases the battery from the battery bay. Releases a MultiBay device from the bottom MultiBay or a device which occupies both the top and bottom MultiBays. Releases a MultiBay device from the top MultiBay. Identifies the computer; needed when caling Compaq customer support.
2 3 4 5 6 7
Tilt feet Memory expansion compartment cover Hard drive release latch Battery release latch Front MultiBay release latch
Docking restraint latch recess Secures the computer to the expansion base.
8 9
Rear MultiBay release latch Serial number
1-20
Product Description
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: I I I I I I I I I I 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
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chapter
2
T ROUBLESHOOTING
Follow these basic steps when beginning the troubleshooting process: 1. 2. 3. 4. Complete the preliminary steps listed in Section 2.1. Run the Power-On Self-Test (POST) as described in Section 2.2. Run Computer Setup as described in Section 2.4. 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: I Complete the recommended actions in the order in which they are given. I Repeat POST after each recommended action until the problem is resolved and the error message does not return. I When the problem is resolved, stop performing the troubleshooting steps and do not complete the remaining recommended actions. I Refer to Chapter 5 for recommended removal and replacement procedures. I 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:
Check for POST error messages Perform any of the following: I Check the system configuration I Set the system power management parameters I Return the system to its original configuration I Check system configuration of installed devices
Then Run:
POST Computer Setup
Troubleshooting
2-1
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
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
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: I A message with the prefix "WARNING" appears, informing you where the error occurred. The system pauses until you press F1 to continue. I 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. I 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
CMOS checksum invalid, run SCU CMOS failure, run SCU Diskette controller error
Description
Recommended Action
Diskette track 0 failed
CMOS RAM information has Run Computer Setup to been corrupted. reinitialize CMOS-RAM. CMOS RAM has lost power. Run Computer Setup to reinitialize CMOS-RAM. The diskette drive If there is no diskette drive in controller failed to respond the system, run Computer Setup to the recalibrate to properly configure the CMOScommand. RAM 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. The diskette drive cannot Try another diskette. If the read track 0 of the problem persists, you may need diskette in the drive. to replace the diskette drive.
Continued
2-4
Troubleshooting
Table 2-1 Continued
Hard disk controller error The hard drive controller failed to respond to the reset command. The keyboard failed the self-test command. The keyboard failed to respond to the RESET ID command. The periodic timer interrupt is not occurring. An illegal adapter ROM was located at the specified address. The time and date stored in the real time clock have been corrupted, possibly by a power loss. A failure or an error 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.
Keyboard controller failure Keyboard failure
No interrupts from Timer 0 ROM at xxxx (LENGTH yyyy) with nonzero checksum (zz) Time/Date corrupt - run SCU
Hard disk xx failure (or error)
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
CMOS RAM test failed
Description
Beep code
3 4
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. *Beep codes are defined in Table 2-3.
0
1
5 2 None
Troubleshooting
2-5
Table 2-3 Fatal Error Beep Codes
Beep Code Beep Sequence
0 1 2 3 4 5 6 7 8 S-S-S-P-S-S-L-P S-S-S-P-S-L-S-P S-S-S-P-S-L-L-P S-S-S-P-L-S-S-P S-S-S-P-L-S-L-P S-S-S-P-L-L-S-P S-S-S-P-L-L-L-P S-S-L-P-S-S-S-P S-S-L-P-S-S-L-P
Description
The DMA page registers are faulty. The refresh circuitry is faulty. The ROM checksum is incorrect. The CMOS RAM test failed. The DMA controller is faulty. The interrupt controller failed. The keyboard controller failed. Graphics adapter is faulty. Internal RAM is faulty.
Recommended Action
Replace system board.
Replace memory board or system board if memory on system board is faulty.
NOTE: S = Short, L = Long, P = Pause
2.4 Compaq Utilities
Compaq Utilities contain several functions that I Determine if various computer devices are recognized by the system and are operating properly. I Provide information about the system once it is configured. Compaq Utilities include the following programs: I Computer Setup I Compaq Diagnostics To access Compaq Utilities: 1. Turn on or restart the computer by clicking Start Shut Down Restart the computer. 2. Press F10 when the blinking cursor appears in the upper-right corner of the display. 3. Select a menu option.
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Troubleshooting
Selecting Computer Setup or Compaq Diagnostics for Windows
The computer features two system management utilities: I 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. I 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 F10. I To change the language, press F2. I To view navigation information, press F1. I To return to the Computer Setup menu from anywhere in Computer Setup, press Esc. 2. Select the File, Security, or Advanced menu. 3. To close Computer Setup and restart the computer I Select File Ignore Changes and Exit, then press Enter. or I Select File Save Changes and Exit, then press Enter. 4. To confirm your choice, press F10.
Troubleshooting
2-7
File Menu
Begin here
System information
To do this
I View
identification information about the computer, docking base, and battery packs.
Save to floppy Restore from floppy
Restore defaults
Ignore changes and exit
Save changes and exit
specification information about the processor, memory and cache size, and ROM date and family. Save system configuration to a diskette. Restore system configuration from a diskette. (The diskette contains your personal configuration, so you should restore from the diskette before using the System Recovery CD-ROM.) Replace configuration settings in Computer Setup with factory default settings. (Identification information is retained.) Cancel changes entered during the current Computer Setup session, then exit and restart the computer. Save changes, then exit and restart the computer.
I View
Security Menu
Begin here
Setup password Power-On password Password options
To do this
Enter, change, or delete a setup password. Enter, change, or delete a power-on password. Enable/disable: I QuickLock/QuickBlank. keyboard and pointing stick or touchpad at startup. (These features can be enabled only when a power-on password is set.) Enter, change, or delete a DriveLock password. Enable/disable I Ports or diskette drives.
I Diskette I CD-ROM I Lock
DriveLock passwords Device security
write.
System IDs
or diskette startup. NOTE: Settings for a DVD-ROM can be entered in the CD-ROM field. Enter identification numbers for the computer, a docking base, and battery packs.
2-8
Troubleshooting
Advanced Menu
Begin here
Language (or press F2) Boot Options
To do this
Change the Computer Setup language. 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
I Enable/disable
the embedded numeric keypad at startup. multiple standard pointing devices at startup. When this feature is disabled, only one pointing device is activated at startup. 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.) 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.)
I Enable/disable
I Enable/disable
I 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.
I Set
Troubleshooting
2-9
Using Compaq Diagnostics for Windows
1. Access Compaq Diagnostics for Windows by selecting Start Settings Control Panel Compaq Diagnostics. 2. To select a category, choose one of two methods: I Select the Categories menu, then select a category from the drop-down list. I 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 menu Exit.
Factory Default Settings
Table 2-4 Initialization
Enable POST Memory Test Keyboard Num Lock Hard drive boot sequence 1 2 3 4 Boot display Language Checked (enabled) Unchecked (Off) Hard drive in the computer MultiBay Hard drive in the computer hard drive bay Hard drive in the expansion base or convenience base half-height/MultiBay Hard drive in the expansion base or convenience base MultiBay Auto Language of country
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Troubleshooting
Table 2-5 Ports
Serial port Infrared port Parallel port Ethernet port 3F8, IRQ4 2F8, IRQ9 378, IRQ7 300, IRQ11
Table 2-6 Power
Low Battery Warning Beep External Energy Saving Monitor Connected Power Management Enabled Conservation Level Level Definition High Checked (enabled) Unchecked (not connected) While operating on battery power High Suspend Time: 3 minutes Hibernation Timeout: Immediate Drive Timeout: 1 minute Screen Timeout: 1 minute Suspend Time: 5 minutes Hibernation Timeout: 1 hour Drive Timeout: 2 minutes Screen Timeout: 3 minutes Suspend Time: disabled Hibernation Timeout: low battery Drive Timeout: always on Screen Timeout: always on
Medium
Custom
Table 2-7 Security
Enable QuickLock/QuickBlank Enable Power-On Password Disable Serial/Infrared Ports Disable Parallel Port Disable PC Card Slots Setup Password Power-On Password Diskette Drives Disable Diskette Drives Disable Diskette Boot Unchecked (Disabled) Unchecked (Disabled) Unchecked (Enabled) Unchecked (Enabled) Unchecked (Enabled) Password blank Password blank Unchecked (Enabled) Unchecked (Enabled)
Troubleshooting
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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: I Verify that cables are connected properly to the suspected defective parts. I Verify that all required device drivers are installed. I 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. I To access Compaq Info Messenger, go to www.compaq.com and select Info Messenger. I To register, follow the instructions on the Info Messenger page. When your registration is complete, you can I Implement your customized search whenever you prefer from the Info Messenger page. I 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.
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Troubleshooting
Checklist for Solving Problems
If you encounter a minor problem with the computer or software applications, go through the following checklist for possible solutions: I Is the computer connected to an external power source, or does it have a fully charged battery pack installed? I Are all cables connected properly and securely? I Did the diskette drive contain a nonbootable diskette when you turned on the computer? I 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. I 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
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.
Possible Cause
System beeps have been turned down. Volume may be turned off or set too low.
Solution
Use the Fn+F5 hotkeys to turn up the system volume.
I Adjust I Adjust
the overall volume by pressing the Fn+F5 hotkeys.
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
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. Uncheck the mute box in the volume properties.
Continued
Troubleshooting
2-13
Table 2-8 Continued Problem
Possible Cause
Solution
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. Ensure that microphone is selected as the recording source in Control Panel Multimedia and that the recording level is adjusted. Check the game program's audio settings. Adjust the computer volume with the Fn+F5 hotkeys.
I Adjust I Use
External microphone does not You are using the wrong type work. of microphone or microphone plug for the computer. The microphone may not be connected properly. Sound source not selected.
No sound from headphones
Audio settings are not set correctly. Volume control on the computer is turned down. Volume or mixing controls set incorrectly.
the overall volume with the Fn+F5 hotkeys. the mixing features available by double-clicking the speaker icon on the Windows taskbar.
Sound source not selected.
Volume too low or too loud
The headphones are connected to the wrong jack. Volume or mixing controls set incorrectly.
Verify that the sound source is selected in Control Panel Multimedia. Check the connection.
I Adjust I Check
the overall volume with the Fn+F5 hotkeys. the mixing features available by double-clicking the speaker icon on the Windows taskbar.
Table 2-9 Solving Battery/Battery Gauge Problems
Problem
Computer is beeping and battery power light is blinking
Possible Cause
Battery pack charge is low.
Solution
I Recharge
the battery pack by connecting to an external power source. the battery pack with another fully charged battery. Hibernation or turn the computer off until AC power or a fully charged battery is available.
I Replace I Initiate
Computer battery charge light Volume turned down too low. Turn up the volume using the blinks to indicate low battery Fn+F5 hotkeys. condition, but computer does not beep.
Continued
2-14
Troubleshooting
Table 2-9 Continued Problem
Possible Cause
Solution
Allow time for the battery pack to return to room temperature. No action required. Use a different battery pack. Work is lost.
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 Hibernation was not initiated memory was lost when before removing the battery replacing the battery pack. pack. Battery charge does not last Battery is exposed to higher very long. temperatures.
Date and time must be set every time computer is turned on.
Put the computer in a cooler place and recharge the battery pack. Battery is exposed to Put the computer in a warmer extremely cold temperatures. place and recharge the battery pack. NOTE: The recommended operating temperature range for the battery is from 10°C to 40°C (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 Reset the battery conservation disabled or set to drain. level. An external device is draining Turn off or remove any external the battery. device or PC Cards when not in use. Battery gauge may be Recalibrate the gauge. inaccurate and require recalibration. The Real Time Clock battery I Restore power, then turn on has reached the end of its the computer with the power useful life. switch
I Contact
your Compaq authorized service provider to replace the Real Time Clock battery.
Battery gauge seems inaccurate.
Battery pack is warm after charging.
The battery pack may need Recalibrate the battery. calibration. The battery pack has reached Replace the battery pack. the end of its useful life. Warming occurs during No action required. charging.
Troubleshooting
2-15
Table 2-10 Solving Compact Disc and DVD-ROM Problems
Problem
Drive cannot read a disc
Possible Cause
Disc is not properly seated in the drive. Disc is loaded in the loading tray upside down. Disc has a scratch on its surface. Drive is not connected properly.
Solution
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.
CD-ROM drive or DVD-ROM drive is not detected by the computer.
Table 2-11 Solving Diskette Drive/SuperDisk LS-120 Drive Prob