Removal and replacement procedures 62
Power supply backplane
To remove the component:
1. Power down the server (on page 26).
2. Remove the power supplies ("Hot-plug power supply" on page 31).
3. Do one of the following:
o Unlock and remove the bezel ("Front bezel" on page 27).
o Extend the server from the rack (on page 26).
4. Remove the access panel ("Access panel" on page 29).
5. Remove the air baffle ("Air baffle" on page 35).
6. Remove the system fans (on page 35).
7. Remove all expansion boards ("Expansion board" on page 37).
NOTE: Removing the processors, PPM, FBDIMMs, and cache module from the system board is
not necessary for this procedure.
8. Remove the system board ("System board" on page 55).
9. Disconnect the cables from the power supply backplane.
10. Remove the power supply backplane.
To replace the component, reverse the removal procedure.