Cmos Battery Removal; Locating The Riser Board Screws - NEC POWERMATE 8100 Series Service And Reference Manual

7. Remove the three screws along the top edge of the riser board (see the
following figure).
A – Riser Board Screws
8. Slide the riser board out of the slots on the wall of the chassis.
9. Lift the riser board out of the system unit.

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.
Removing the battery from the system board causes the
computer 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 system unit cover as previously described.

Locating the Riser Board Screws

! CAUTION
Disassembly and Reassembly 3-31