Power Supply Screws; System Board Removal - NEC POWERMATE 4100M Service Manual

6-18 Minitower Repair
5. Remove the five screws securing the power supply to the system unit and remove
the power supply (see Figure Section 6-17).
Power Supply
Screw
(not shown)

System Board Removal

Remove the system board per Figure Section 6-18 and the following steps.
Remove the following components as previously described.
1.
n
top cover
n
expansion slot boards
n
ISA/VL-Bus backboard
n
Secondary cache (if installed, see Section 3, Options)
n
SIMMs installed on the system board
Remove the two 3 1/2-inch diskette drive bracket screws from the front of the
2.
system unit (see Figure Section 6-15).
3. Slide the 3 1/2-inch diskette drive with bracket out of the system unit. (The
bracket works like a drawer and will stop when fully out.)
4. Remove and label all cables connected to the system board Figure Section 6-18
provides the general locations of the connectors for the system board. Appendix
A provides the pin assignments for each connector; Table Section 6-2 identifies
the correct connector.
Figure Section 6-17 Power Supply Screws
NOTE: Remove any installed options, see
Section 3.
Power Supply
Screws