Fujitsu PRIMERGY TX120 S3 Upgrade And Maintenance Manual page 316

System board and components
Ê If the CMOS battery cannot be ejected this way, use a toothpick
(recommended) or similar tool as a lever: Insert the toothpick between the
battery and locking spring as shown (2).
V
CAUTION!
Do not use sharp-edged tools like screw drivers as they may damage
system board components when slipping.
Figure 186: Replacing the CMOS battery
Ê Carefully pry the depleted CMOS battery out of its socket as shown (1).
Ê Remove the CMOS battery (2).
I
Do not throw the CMOS battery into the trash can. Lithium batteries
must be disposed of in accordance with local regulations concerning
special waste.
316 Upgrade and Maintenance Manual
TX120 S3