NEC POWERMATE PROFESSIONAL 9000E - SERVICE, Service Manual, Page: 89 / 206

Disassembly and Reassembly 3-27
CMOS Battery Removal
Remove the 3-volt lithium battery from the system board as follows.
1.
Turn off and unplug the system unit and any external options connected to
the system.
!
CAUTION
Removing the battery from the system board causes the
workstation to lose system configuration information. If
possible, run Setup and record the system configuration
settings before removing the battery. Use that information to
restore the system after replacing the battery.
2.
Remove the left side cover as previously described.
3.
Locate the battery and its socket on the system board (see the following
figure).
Locating the Battery
A – Battery
4.
Label and disconnect any cables that block the battery socket.
5.
Use your fingers to carefully remove the battery from the battery socket on
the system board (see the figure on the following page).