Replacing the battery

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

If your battery is failing you may notice your computer clock slowing down and giving you the incorrect time. If so, open the BIOS Setup utility and make note of any custom values in the various menus before replacing the battery. Replacing the battery resets the BIOS Setup utility to its default values.

Warning 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.

Attention Il y a danger d’explosion s’il y a replacement incorrect de la batterie.

Remplacer uniquement avec une batterie du même type ou d’un type équivalent recommandé par le constructeur.

Mettre au rebut les batteries usagées conformément aux instructions du fabricant.

When disposing of used batteries, check local and national laws regarding disposal of toxic or dangerous waste.

To replace the battery:

1Restart the computer and start the BIOS Setup utility by pressing F1 when you are prompted to do so.

2Verify that all your settings are currently correct, then from the Exit menu, select Save Custom BIOS Settings. For more information about the BIOS Setup utility program, see “Using the BIOS Setup Utility” on page 45.

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

4Remove the cover. (See “Opening and closing” on page 17 and “Preventing static electricity discharge” on page 15.)

42Working with the Gateway Mid-Tower case