IBM 8088, 8086, 8090, 8089, 8087 manual Changing the battery

Page 35

Changing the battery

Your computer has a special type of memory that maintains the date, time, and settings for built-in features, such as parallel-port assignments (configuration). A battery keeps this information active when you turn off the computer.

The battery normally requires no charging or maintenance throughout its life; however, no battery lasts forever. If the battery fails, the date, time, and configuration information (including passwords) are lost. An error message is displayed when you turn on the computer.

Refer to “Lithium battery notice” on page ix for information about replacing and disposing of the battery.

To change the battery:

1.Open the cover. See “Opening the cover” on page 10.

2.Pivot the drive bay assembly upward to gain access to the system board.

3.Locate the fan bracket assembly. See “Locating components” on page 11.

4.Lift the fan bracket assembly up to gain access to the battery.

5.Locate the battery. See “Identifying parts on the system board” on page 11.

6.Remove the old battery.

Chapter 1. Installing options 21

Image 35

Contents User Guide Types 8086, 8087 Types 8089 Page User Guide Types 8086, 8087 Types 8089 Page Contents Iv User Guide Conditions that require immediate action Important safety informationPower cords and power adapters General safety guidelinesService Batteries Extension cords and related devicesPlugs and outlets Heat and product ventilation CD and DVD drive safetyTo connect To disconnect Additional safety informationLithium battery notice Modem safety informationLaser compliance statement Power supply statementInformation resources OverviewXii User Guide Features Installing optionsVideo subsystem Operating systems preinstalled varies by model type Specifications Available options Supported operating positionsHandling static-sensitive devices Locating the connectors on the front of your computer Installing external optionsLocating the connectors on the rear of your computer Obtaining device drivers Connector DescriptionOpening the cover Identifying parts on the system board Locating componentsInstalling memory Installing options What to do next Installing a PCI adapterWhat to do next Removing and replacing an optical drive Installing internal drivesRemoving and replacing a hard disk drive User Guide Connecting a parallel ATA hard disk drive Integrated cable lock Password protection Security featuresChanging the battery Erasing a lost or forgotten password clearing Cmos Closing the cover and connecting the cables User Guide Exiting from the IBM Setup Utility program Using the IBM Setup Utility programStarting the IBM Setup Utility program Viewing and changing settingsUsing Security Profile by Device User passwordAdministrator password Setting, changing, and deleting a passwordChanging the startup sequence Using IDE Drives SetupSelecting a startup device Selecting a temporary startup deviceUser Guide System programs Updating flashing Bios from a disketteUpdating flashing Bios from your operating system Appendix A. Updating system programsRecovering from a POST/BIOS update failure Appendix A. Updating system programs User Guide Cleaning a mouse with a ball Appendix B. Cleaning the mouseCleaning an optical mouse User Guide Basic AT commands Appendix C. Manual modem commandsInternal speaker on until carrier detected Low speaker volumeSet Pulse dial as default Set Tone Dial as defaultExtended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 2 commands Fax Class 1 commandsVoice commands Appendix C. Manual modem commands User Guide Tier 2 CRUs Appendix D. Customer replaceable unit CRU parts listTier 1 CRUs User Guide Appendix E. Notices Trademarks Television output noticeIndex Security integrated cable lock Page Part Number 19R2375