HP CQ42-140TU, CQ42-109TU, CQ42-103TU, CQ42-275TX, CQ42-276TU, CQ42-168TU, CQ42-189TX, CQ42-160TX Enww

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3.Release the optical drive cable (1) from the system board.

4.Lift the right side of the system board (2).

5.Release the system board by sliding it to the right at an angle (3) until the connectors on the left side of the system board clear the base enclosure, and then remove the system board.

6.If it is necessary to replace the modem module cable, remove the RJ-11 connector (1) from the clip built into the base enclosure.

7.Remove the modem module cable (2) from the routing channel built into the base enclosure. The modem module cable is available using spare part number 610791-001.

ENWW	Component replacement procedures 85

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Contents Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC First Edition March Document Part Number Revision Publication date Description MSG revision historyIv MSG revision history Safety warning notice Vi Safety warning notice Table of contents Setup Utility 109 131 Product description Graphics Intel UMA Integrated/HD Graphics with Intel CeleronChipset 150-199 100-149 Intel UMA Integrated/GMA 4500M GL40 Category Description HP G42Memory Switchable Discrete Graphics150-199 100-149 ATi Discrete PCI Express x Graphics 35-cm 2.5-in Hard drivesCamera OpticalDrives Diskette driveEthernet WirelessLocal area network Wlan options by Way of wireless Module ModemPorts ExternalMedia card Keyboard PowerOperating Preinstalled System Serviceability End-user Replaceable partsEnww Identifying the hardware External component identificationComponent Description Top componentsTouchPad Lights Button and speakers Control Panel System and Security Power OptionsFn key KeysDisplay Right-side components Left-side components Bottom components Wireless antennas Additional hardware components Enww Serial number location Illustrated parts catalogComputer major components 35.6 cm 14-in, WXGA, BrightView display assemblyTouchpad button board includes cable Power button board includes cableDescription Spare part number KeyboardsSpeaker assembly includes cable Description Spare part number Memory modules Wlan module Atheros AR9285 802.11 a/b/g/n 2x2 WiFi adapterIntel Centrino Wireless-N 1000 802.11b/g/n Broadcom 4312G 802.11b/g WiFi Adapter halogen freeBT3.0+HS ready for models 1.2 and 1.3 only Battery Bluetooth module for models 1.0, 1.1 and 1.3 onlyEnww 592144-001 Display assembly componentsDisplay rubber display kit not illustrated Display back coverWebcam module Item Description Spare part number Plastics kit 600190-001 Plastics KitMass storage devices Item Description Spare part number Rubber kit Power cord, AC, 3 wire, black, 1.83-mMiscellaneous parts Description Spare part number AC adaptersSpare part Description Number Sequential part number listingZimbabwe 600164-001 Display back cover, Presario, biscotti Enww HP, white for models 1.1 only HP, charcoal for models 1.2 and 1.3 only HP, velvet red for models 1.2 and 1.3 only Enww Tools required Removal and replacement proceduresPreliminary replacement requirements Service considerationsDrive handling Cables and connectorsEvent 10% 40% 55% Grounding guidelinesElectrostatic discharge damage Typical electrostatic voltage levelsPackaging and transporting guidelines Material Use Voltage protection level Equipment guidelinesSerial number Component replacement proceduresDescription Spare part number Rubber Feet Kit 600184-001 Computer feetBattery Hard drive Enww Enww Optical drive Enww Wlan module Enww Enww Memory module Enww Keyboard Enww Top cover Enww Enww Description Spare part number Speaker assembly 600189-001 Speaker assemblyPower button board TouchPad button board Modem module Enww Bluetooth module USB board Power connector cable Display assembly Enww Enww Enww Enww Enww Enww System board Enww Enww Enww Optical drive Sata cable and connector Enww Description Spare part number RTC battery 602745-001 RTC batteryEnww Subsystem memory includes thermal replacement material Fan/heat sink assemblyEnww Enww Processor Enww Enww Using Setup Utility Setup UtilityComputer Setup in Windows Starting Setup UtilityDisplaying system information Navigating and selecting in Setup UtilityRestoring default settings in Setup Utility Security menu Setup Utility menusExiting Setup Utility Main menuPrimary Hard Disk Self Test System Configuration menuDiagnostics menu Navigating and selecting in Computer Setup Computer Setup in LinuxStarting Computer Setup Using Computer SetupRestoring factory settings in Computer Setup File menu Computer Setup menusSecurity menu System Configuration menu Enww Enww Computer specifications Specifications35.6-cm14.0-in display specifications Hard drive specifications Cache buffer Data transfer rate Random access timeTransfer mode Applicable discBD-ROM, BD-ROM-DL, BD-R, BD-R-DL, BD-RE, BD-RE-DL, DVD-ROM Select Start Computer System resource specificationsWindows Backup and recoveryCreating recovery discs Backing up your information Using Windows Backup and Restore Using system restore points Performing a recoverySelect Start All Programs Recovery Manager Recovery Manager Recovering from the recovery discsLinux backup and recovery Enww Audio-in microphone Connector pin assignmentsPin Signal Audio-out headphoneExternal monitor RJ-45 network RJ-11 modemHdmi Universal Serial Bus Enww Requirements for all countries or regions Power cord set requirementsCountry/region Accredited agency Applicable note number Requirements for specific countries or regionsDisplay BatteryRecycling Enww Display Enww Enww Enww Index Symbols/NumericsInverter USB Enww

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