Digital Equipment Prioris XL 6000 Series, Руководство по техническому обслуживанию

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Field Service Replacement
11-18
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 remove the side panel.
5. Disconnect all cables from the main logic board.
6. Record all ISA and PCI slot assignments before removing the expansion
boards.
7. Remove the expansion boards.
8. Remove and retain screws from the MLB (A, Figure 11-8).
9. Lift the MLB away from the chassis.
10. Configure the jumpers on the new main logic board.
11. If the new main logic board does not have a Lithium battery/RTC, remove
the Lithium battery/RTC from the old main logic board and replace it on the
new main logic board.
12. Align the main logic board over the standoffs; install and tighten screws
removed in step 7.
13. Using the side panel label as a reference, reconnect all cables to the main
logic board.
14. Using information recorded in step 6, install the expansion boards in their
original configuration.
15. Reconnect all external and internal cable connections.
16. Replace and lock the side panel.
17. Turn on the server.
18. Run the SCU to configure the server and restore the system management
information.