System Board Removal; System Board Replacement; Locating System Board Screws - NEC POWERMATE PROFESSIONAL 9000 Service Manual

System Board Removal

Remove the system board by following these steps:
1. As viewed from the front of the chassis, remove the left side cover on the system
unit (see "System Unit Covers" in Section 3).
Remove the drive cage (see "Removing the Drive Cage").
2.
Label and disconnect any cables connected to the system board or any expansion
3.
board.
4. Remove all expansion boards from the system (see "Removing an Expansion
Board" in Section 3).
5. Loosen and remove the eleven screws securing the system board to the side of the
chassis.
6. Bring the board out of the system unit. Be careful not to scrape the surface of the
board against brackets or edges within the chassis as the board is removed.

System Board Replacement

Replace the system board by following these steps:
Place the replacement system board in the chassis with its external connectors
1.
toward the rear of the chassis. If necessary, push the I/O panel into the I/O
opening in the chassis to make sure it is securely seated.
Figure 5-14 Locating System Board Screws
Repair 5-13