Compaq Presario CQ42 Notebook
PC and HP G42 Notebook PC
Maintenance and Service Guide
SUMMARY
This guide is a troubleshooting reference used for maintaining and servicing the computer. It provides comprehensive information on identifying computer features, components, and spare parts; troubleshooting computer problems; and performing computer disassembly procedures.
Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC
First Edition April Document Part Number
Revision Publication date Description
MSG revision history
Iv MSG revision history
Safety warning notice
Vi Safety warning notice
Table of contents
Setup Utility
107
129
Product description
AMD Turion Processor
AMD Phenom Processor
AMD Sempron Processor
AMD Athlon Processor
Chipset
Graphics Intel UMA Integrated/HD
ATi Discrete PCI Express x Graphics
150-199 100-149 Intel UMA Integrated/GMA 4500M GL40
Memory
Switchable Discrete Graphics
Optical
Hard drives
Drives
Drive
Diskette
Camera
Microphone
Media card
External
Ports
Operating Preinstalled System
Power
Serviceabilit End-user Replaceable parts
Keyboard
Memory module Optical drive Mini-card device
Enww
Identifying the hardware
External component identification
TouchPad
Top components
Component Description
Lights
Button and speakers
Control Panel System and Security Power Options
Fn key
Keys
Display
Right-side components
Left-side components
Bottom components
Wireless antennas
Additional hardware components
Enww
Serial number location
Illustrated parts catalog
Computer major components
35.6 cm 14-in, WXGA, BrightView display assembly
Speaker assembly includes cable
Power button board includes cable
Description Spare part number
Keyboards
Memory modules
Wlan module Atheros AR9285 802.11 a/b/g/n 2x2 WiFi adapter
Modem module
593533-001
Enww
Battery
Item Description Spare part number
592144-001
Display assembly components
Webcam module
Display back cover
Display rubber display kit not illustrated
Item Description Spare part number Plastics kit 600190-001
Plastics Kit
Mass storage devices
Mass storage devices
Miscellaneous parts
Power cord, AC, 3 wire, black, 1.83-m
Description Spare part number AC adapters
Rubber kit
Spare part Description Number
Sequential part number listing
Presario, matte black
HP, biscotti
Module, silver
HP, charcoal for models 1.1 and 1.2 only
Enww
Preliminary replacement requirements
Removal and replacement procedures
Service considerations
Tools required
Drive handling
Cables and connectors
Electrostatic discharge damage
Grounding guidelines
Typical electrostatic voltage levels
Event 10% 40% 55%
Packaging and transporting guidelines
Material Use Voltage protection level
Equipment guidelines
Serial number
Component replacement procedures
Description Spare part number Rubber Feet Kit 600184-001
Computer feet
Battery
Hard drive
Enww
Enww
Optical drive
Enww
Wlan module
Enww
Memory module
Enww
Keyboard
Enww
Top cover
Enww
Enww
Description Spare part number Speaker assembly 600189-001
Speaker assembly
Power button board
TouchPad button board
Modem module
Enww
USB board
Power connector cable
Display assembly
Enww
Enww
Enww
Enww
Enww
Enww
System board
Power connector cable see Power connector cable on
Reverse the preceding procedure to install the system board
Optical drive Sata cable and connector
Enww
Description Spare part number RTC battery 602745-001
RTC battery
Enww
Subsystem memory includes thermal material
Fan/heat sink assembly
Enww
Enww
Processor
Enww
Enww
Enww
Computer Setup in Windows
Setup Utility
Starting Setup Utility
Using Setup Utility
Displaying system information
Navigating and selecting in Setup Utility
Restoring default settings in Setup Utility
Exiting Setup Utility
Setup Utility menus
Main menu
Security menu
Diagnostics menu
System Configuration menu
Primary Hard Disk Self Test
Starting Computer Setup
Computer Setup in Linux
Using Computer Setup
Navigating and selecting in Computer Setup
Restoring factory settings in Computer Setup
File menu
Computer Setup menus
Security menu
System Configuration menu
Enww
Enww
Computer specifications
Specifications
35.6-cm14.0-in display specifications
Hard drive specifications
Transfer mode
Random access time
Applicable disc
Cache buffer Data transfer rate
BD-ROM, BD-ROM-DL, BD-R, BD-R-DL, BD-RE, BD-RE-DL, DVD-ROM
Select Start Computer
System resource specifications
Windows
Backup and recovery
Creating recovery discs
Backing up your information
Using Windows Backup and Restore
Using system restore points
Performing a recovery
Select Start All Programs Recovery Manager Recovery Manager
Recovering from the recovery discs
Linux backup and recovery
Enww
Pin Signal
Connector pin assignments
Audio-out headphone
Audio-in microphone
External monitor
RJ-45 network
RJ-11 modem
Hdmi
Universal Serial Bus
Enww
Requirements for all countries or regions
Power cord set requirements
Country/region Accredited agency Applicable note number
Requirements for specific countries or regions
Recycling
Battery
Display
Enww
Display
Enww
Enww
Enww
Index
Symbols/Numerics
Inverter
USB
Enww