HP CQ57-214NR, CQ57-229WM, CQ57-218NR, CQ57-212NR manual RTC battery, Description Spare part number

Page 79

RTC battery

Description

Spare part number

 

 

RTC battery (includes cable and double-sided tape)

646132-001

 

 

Before removing the RTC battery, follow these steps:

1.Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.

2.Disconnect all external devices connected to the computer.

3.Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer.

4.Remove the battery (see Battery on page 36), and then remove the following components:

Optical drive (see Optical drive (select models only) on page 37)

WLAN module (see WLAN module on page 40)

Keyboard (see Keyboard on page 46)

Top cover (see Top cover on page 49)

USB board (see USB board on page 56)

Power connector cable (see Power connector cable on page 57)

Display assembly (see Display assembly on page 61)

System board (see System board on page 68)

Remove the RTC battery:

1.Turn the system board upside down, with the front toward you.

2.Disconnect the RTC battery cable (1) from the system board.

Component replacement procedures

71

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Contents Compaq Presario CQ57 Notebook PC First Edition March Document Part Number Safety warning notice Iv Safety warning notice Table of contents Specifications Power cord set requirements Viii Northbridge Product descriptionProcessors ChipsetPanel Switchable discrete graphics notCategory Description Computer models Equipped with an AMD processor Intel processorEthernet WirelessOptical drive select Audio and videoKeyboard PowerCard PortsServiceability End-user replaceable parts Operating system PreinstalledSecurity HP HP MediaSmart HP External component identificationDisplay Component DescriptionComponent ButtonFn key KeysLights TouchPad Environmental Notices Left sideRight side Bottom Illustrated parts catalog Service tagService technician determine what components Computer major components Component Spare part number Power button board includes cablePlastics Kit, includes Power connector cableWlan module BatteryComponent Spare part number Cable Kit, includes 646119-001 Cable KitDisplay assembly subcomponents Hard Drive Hardware Kit , includes Mass storage devicesComponent Spare part number HP Smart AC adapter Miscellaneous partsScrew Kit Plastics Kit Spare part number Description Sequential part number listingHard drive bracket, or screws Sequential part number listing 646181-001 Tools required Removal and replacement proceduresPreliminary replacement requirements Service considerationsDrive handling Grounding guidelinesPreliminary replacement requirements Packaging and transporting guidelines Material Use Voltage protection level Equipment guidelinesService tag Component replacement proceduresComputer feet Description Spare part number BatteryOptical drive select models only Page Page Wlan module Page Memory module Hard drive Page Page Keyboard Page Page Top cover Page Page Page Power button board TouchPad button board Page USB board Power connector cable Page Speakers Optical drive connector cable Display assembly Page Page Page Page Page Page System board Page Page RTC battery Page Fan/heat sink assembly Page Component replacement procedures Page Page Page Processor Page Changing the language of Setup Utility Setup Utility Bios and System DiagnosticsUsing Setup Utility Starting Setup UtilityDisplaying system information Navigating and selecting in Setup UtilityExiting Setup Utility Restoring factory settings in Setup UtilityUpdating the Bios Determining the Bios version Using System Diagnostics Computer specifications SpecificationsInch display specifications Hard drive specifications Restore Backup and recoveryCreating restore media Select Start All Programs Recovery Manager Recovery Manager Performing a system restoreChanging the computer boot order Restoring using the restore mediaBacking up and recovering your information Using Windows system restore points Using Windows Backup and RestoreCreate a system restore point Requirements for all countries Power cord set requirementsCountry/region Accredited agency Applicable note number Requirements for specific countries and regionsRecycling BatteryPage Page Page Page Page Index Hdmi Procedures
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