Technical data

FRU Replacement
5-53
DIGITAL Server 3220/3220R
Removing and Replacing the Main Logic Board
1. Turn off the server.
2. Remove ac power.
3. Disconnect all external cables from the I/O expansion modules located at the
rear of server.
4. Unlock and open the front bezel, loosen the thumbscrews, and then remove
the side panel.
5. Loosen captive screws and slide the storage backplane assembly forward to
its maintenance position.
6. Disconnect all cables from the main logic board.
7. Record all ISA and PCI slot assignments before removing the expansion
boards.
8. Remove the expansion boards, processor module, and video/Ethernet
daughter card.
9. Loosen captive screw A securing the main logic board and mounting plate to
the chassis (Figure 5-27).
10. Remove the main logic board and mounting plate from the chassis.
11. Remove screws B and C from the MLB (Figure 5-27).
12. Slide the main logic board to the right to release it from the standoffs.
13. Configure switch SW1 on the new main logic board.