IBM Partner Pavilion 6823, 6343, 6793, 6349, 6791, 6790, 6792, 6795 Appendix A. Changing the battery

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Appendix A. 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 vi for information about replacing and disposing of the battery.

To change the battery:

1.Turn off the computer and all attached devices.

2.Unplug the power cord and remove the cover. See “Removing the cover” on page 17 (small desktop model), “Removing the cover” on page 29 (desktop model), or “Removing the cover” on page 41 (microtower model).

3.Locate the battery. See“Identifying parts on the system board” on page 18 (small desktop model), “Identifying parts on the system board” on page 30 (desktop model), or “Identifying parts on the system board” on page 43 (microtower).

4.If necessary, remove any adapters that impede access to the battery. See

“Installing adapters” on page 20 (small desktop model), “Installing adapters” on page 32 (desktop model), or “Installing adapters” on page 45 (microtower model) for more information.

5.Remove the old battery.

6.Install the new battery.

7.Replace any adapters that were removed to gain access to the battery. See

“Installing adapters” on page 20 (small desktop model), “Installing adapters” on page 32 (desktop model), or “Installing adapters” on page 45 (microtower model) for instructions for replacing adapters.

8.Replace the cover, and plug in the power cord. See “Replacing the cover and connecting the cables” on page 26 (small desktop model), “Replacing the cover and connecting the cables” on page 38 (desktop model), or “Replacing the cover and connecting the cables” on page 52 (microtower model).

© Copyright IBM Corp. 2001

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Contents Page Page Page Page Contents Index To connect To disconnect Safety InformationModem safety information Lithium battery noticeConsignes de sécurité relatives au modem Laser compliance statementViii User Guide How this book is organized About this bookInformation resources Identifying your computer OverviewUser Guide Microprocessor FeaturesExpansion Physical specifications small desktop model SpecificationsPhysical specifications desktop model Physical specifications microtower model Handling static-sensitive devices Available optionsTools required Overview User Guide Locating the connectors on the front of your computer Installing external optionsUSB connector Locating the connectors on the rear of your computer User Guide Installing external options Obtaining device drivers Connector DescriptionRemoving the cover Installing internal options small desktop modelIdentifying parts on the system board Locating componentsInstalling DIMMs Installing memoryWhat to do next Installing adaptersInstalling internal options small desktop model What to do next Drive specifications Installing internal drivesInstalling a drive Installing a Rope Clip Replacing the cover and connecting the cables Installing internal options small desktop model User Guide Installing internal options desktop model Locating components Installing internal options desktop model Installing adapters Installing internal drives Drive specifications Installing a drive To connect the first IDE CD drive or DVD drive To connect an additional IDE CD drive or DVD drive Replacing the cover and connecting the cables Installing internal options desktop model User Guide Installing internal options microtower model Moving the power supply Installing internal options microtower model Installing memory Installing adapters User Guide Installing internal drives Installing a drive Installing internal options microtower model To connect the first IDE CD drive or DVD drive Installing a Rope Clip Replacing the cover and connecting the cables Installing internal options microtower model User Guide Using the IBM Setup Utility program Erasing a lost or forgotten password clearing Cmos Administrator passwordSetting, changing, and deleting a password Changing the startup sequence Using Security Profile by DeviceOther settings in the IBM Setup Utility program Startup sequenceUser Guide Appendix A. Changing the battery User Guide System programs Recovering from a POST/BIOS update failureAppendix B. Updating System Programs User Guide Address map Appendix C. System address mapsSystem memory map LPT3 COM1 DMA I/O address mapAddress hex Description Bits Byte pointer Following tables list the IRQ and DMA channel assignments User Guide Television output notice Appendix E. Notices and trademarksIBM TrademarksDMA IRQ IndexLocation 19, 31 Memory Page Part Number 25P4024