IBM pSeries 7311 D10 Service Manual page 170

Power Supply Bulkhead Replacement
To replace the power supply bulkhead, do the following:
1. Before handling any card, board, or memory DIMM, be sure to use your electrostatic discharge strap
to minimize static-electric discharge. Refer to "Handling Static-Sensitive Devices" on page 42.
2. Insert the power supply bulkhead into the subsystem.
3. Align the three screw holes located on the top of the power supply bulkhead with the three threaded
screw holes located on the subsystem chassis.
4. Align the three screw holes located on the bottom of the power supply bulkhead with the three
threaded screw holes located on the subsystem chassis base.
5. Tighten the six retaining screws for the power supply bulkhead.
6. Replace the power supplies or the power supply filler as described in "Power Supply Replacement"
on page 151.
7. Reconnect the power cables to the power supplies.
8. Replace the RIO bus adapter as described in "RIO Bus Adapter Replacement" on page 126.
9. Reconnect the RIO-2 cables from the RIO connectors located on the rear of the subsystem.
10. Replace all of the previously removed PCI adapters as described in "Adding or Replacing a
Non-Hot-Pluggable PCI Adapter" on page 132.
Note: When you are reinstalling the PCI adapters, alternately reinstall the PCI dividers.
11. Reconnect all PCI adapter cables to their respective adapters.
12. Reconnect the power source to the system. The green LED located on the power supply comes on
solid.
13. Close then secure the service access cover with the three thumbscrews located on its back edge.
14. Put the Model D20 subsystem back into the operating position as described in "D20 Operating
Position" on page 114.
15. After the system has successfully powered on, close the rack doors.
154 Eserver pSeries 7311 Model D10 and Model D20 Service Guide