Compaq A900 - page 74

2.Remove the RTC battery.

Reverse this procedure to install the RTC battery.

66 Chapter 4 Removal and replacement procedures

Contents

Main Page Page Page Table of contents Page Page Page 1Product description 2Chapter 1 Product description Page 4Chapter 1 Product description 2External component identification Display components Display components 5 Top components Buttons, lights, and speakers 6Chapter 2 External component identification Top components 7 Keys 8Chapter 2 External component identification Pointing devices Top components 9 Front components Right-side components 10 Chapter 2 External component identification Left-side components Left-side components 11 Bottom components 12 Chapter 2 External component identification Page Page Computer major components 15 16 Chapter 3 Illustrated parts catalog Computer major components 17 18 Chapter 3 Illustrated parts catalog Display assembly components Display assembly components 19 Page Page Miscellaneous parts 22 Chapter 3 Illustrated parts catalog Sequential part number listing Sequential part number listing 23 24 Chapter 3 Illustrated parts catalog Sequential part number listing 25 26 Chapter 3 Illustrated parts catalog 4Removal and replacement procedures Preliminary replacement requirements Tools required Service considerations Plastic parts Cables and connectors Drive handling Grounding guidelines Electrostatic discharge damage Page Page Unknown user password Component replacement procedures Battery Camera module Page Hard drive Page Memory module Page WLAN module Component replacement procedures 41 42 Chapter 4 Removal and replacement procedures Page Optical drive Page Switch cover and keyboard Page Page Page Display assembly Page Page Page Page Top cover Page USB board Fan Speaker assembly System board Page Page Power connector cable Page RTC battery Page Digital media board Page Heat sink Page Processor Page 5Setup Utility Starting the Setup Utility Changing the language of the Setup Utility Navigating and selecting in the Setup Utility Displaying system information Restoring default settings in the Setup Utility Using advanced Setup Utility features Closing the Setup Utility Setup Utility menus Main menu Security menu 76 Chapter 5 Setup Utility System Configuration menu 6Specifications Computer specifications Computer specifications 77 17.0-inch, WXGA display specifications 78 Chapter 6 Specifications Hard drive specifications Hard drive specifications 79 DVDRW and CD-RW SuperMulti Double-Layer Combo Drive specifications 80 Chapter 6 Specifications DVDRW and CD-RW Combo Drive specifications DVDRW and CD-RW Combo Drive specifications 81 System DMA specifications 82 Chapter 6 Specifications System interrupt specifications System interrupt specifications 83 System I/O address specifications 84 Chapter 6 Specifications System I/O address specifications 85 System memory map specifications 86 Chapter 6 Specifications Page Page Page Page Page Page Page Page Page Page Page Page 8Backup and recovery Recovering system information Creating recovery discs Backing up your information When to back up Backup suggestions Using system restore points When to create restore points Create a system restore point Restore to a previous date and time Performing a recovery Recovering from the recovery discs Recovering from the partition on the hard drive 9Connector pin assignments External monitor 104 Chapter 9 Connector pin assignments Page RJ-45 (network) 106 Chapter 9 Connector pin assignments S-Video-out S-Video-out 107 Page 10 Power cord set requirements Requirements for all countries and regions Requirements for specific countries and regions 110 Chapter 10 Power cord set requirements 11 Recycling Battery Display Page Page Page Page Page Index