NEC EXPRESS5800/140Hb Service Manual page 160

Note:
same slots when you reassemble the system.
5. Tag and disconnect interface and controller cables connected internally to
the system board.
6. Tag and disconnect the power cables connected to the system board.
7. Tag and disconnect cables connected externally to the I/O connectors at the
rear of the system.
8. Tag and disconnect the speaker cable from the system board.
9. Tag and disconnect the power interlock switch cable from the system board
10. Tag and disconnect the switch cable assembly from the system board.
11. Tag and disconnect the LED cable assembly from the system board.
12. Remove the 18 screws securing the systems board to the chassis (see A in
Figure 4-59). Save the screws for reassembly.
13. Remove the black plastic insulator that is protecting the hot-plug portion of
the system board. Save the black plastic insulator for reassembly.
14. Carefully move the board sideways slightly towards the front of the cabinet
so that it clears all its mounting hole hooks. Then lift the system board out of
the chassis and place it component-side up on a nonconductive, static free
surface.
4-60 Disassembly and Reassembly
The PCI option boards must be reinstalled in the
Figure 4-59. Removing the System Board