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Installing and removing an optional mezzanine
board
For information on installing and removing the optional mezzanine board, refer to the Mezzanine
Board User Guide.
Replacing the CMOS battery
If the server clock does not keep time or the settings in the BIOS Setup utility are not saved when
you turn off the server, replace the CMOS battery with an equivalent battery.
To replace the battery:
1 Print the appendix for “BIOS Settings” on page 89 in this guide.
2 Restart your server, then press F2 at any time after you see the LEDs on your keyboard flash
or turn off. The BIOS Setup utility opens.
3 Record the BIOS settings on your printout, then close the utility.
4 Turn off your server, then follow the instructions in “Preventing static electricity discharge”
on page 28.
5 Follow the instructions in “Opening the server case” on page 29.
6 Locate the old battery on the system board and note its orientation. You will need to install
the new battery the same way.
7 Push the battery retention clip away from the battery until the battery lifts up, then remove
the old battery. You can use a screwdriver to help lift the battery.
8 Make sure that the positive (+) side of the new battery is facing the correct direction, then
press the new battery into the socket until it snaps into place.
9 Follow the instructions in “Closing the server case” on page 30.
Warning
Danger of explosion if battery is incorrectly replaced. Replace only with the same or
equivalent type recommended by the manufacturer. Dispose of or recycle used batteries
by taking them to a hazardous waste facility. Follow all local regulations for correct battery
disposal.