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5-26 Solving System Problems
6.
Gently put the ball back into the mouse.
7.
Fit the ball cover back into the mouse and turn the cover
clockwise until it locks in place.
Battery Replacement
All system boards use a battery to maintain system
configuration information. Your system uses a coin-cell
battery mounted on the system board (see the following
figure). If it fails to maintain system configuration
information, replace it with an identically rated battery from
the same manufacturer.
!
WARNING
The battery can explode if it is incorrectly
replaced or improperly discarded. Use only the
same battery or an equivalent type
recommended by the manufacturer when
replacing the battery.
Lithium acts as a catalyst when exposed to water
and causes spontaneous combustion on contact.
Discard used batteries according to the
manufacturer’s instructions.
!
CAUTION
Removing the battery from the system board
causes the computer to lose system
configuration information. Prior to removing the
battery, run the BIOS Setup utility (see
Chapter 3) and print out or write down your
system configuration settings. Then you can
restore your system to its previous settings.