
If the computer clock does not keep time or the settings in the BIOS Setup utility are not saved when you turn off your computer, replace the system battery. Use a battery of the same size and voltage as the original battery that was in your computer.
Warning Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries following the manufacturer’s instructions.
To replace the battery:1
2 During the restart, press and hold the F1 key. The main menu of the BIOS Setup utility opens.
3
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5 Remove the side panel by following the instructions in “Removing the side panel” on page 48.
6 For more stability, place your computer on its side. To avoid scratching the case, place it on a towel or other
7 Locate the old battery on the system board and note its orientation. You will need to install the new battery the same way.
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