You may need to reconfigure your system after installing some expansion cards. You may also need to install software that came with the card. Check the card documentation for additional information.

Replacing the battery

The battery provides power for the system real-time clock and CMOS memory, which holds the system configuration information.

If your battery is failing you may notice your system clock slowing down and giving you the incorrect time. If so, open the BIOS Configuration Manager and write down all the values in the various tabs before replacing the battery. Replacing the battery resets the BIOS Configuration Manager to its default values.

Caution There is a danger of explosion if the battery is incorrectly replaced. Replace the battery only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions.

To replace the battery:

1Restart the computer and start the BIOS Configuration Manager program by selecting Enter Setup when you are prompted to do so.

2Write down the CMOS values from the Boot Options, Integrated IDE, Integrated Floppy, Peripheral Ports, Power Events, General and Security tabs in the BIOS Configuration Manager so you can reenter them after you replace the battery. For more information about the BIOS Configuration Manager program, see “Using the BIOS Configuration Manager” on page 65.

3Turn off the computer, disconnect the power cord, modem cord (if installed), and all external peripheral devices.

4Open the case by following the instructions on page 17. (See “Preventing static electricity” on page 15.)

5Locate the battery on the system board (see “System board” on page 6). The battery is circular and has the positive pole mark (+) on the top.

36System Components