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3 Press the retaining clip on the power supply to the left to release the power supply module
from the chassis.
4 Pull the power supply module straight out of the server with the handle. It may take
considerable force to remove.
5 Insert the new power supply module into the server, with the retaining clip on the right,
until it locks into place.
6 Reconnect the AC power cord for the new power supply module.
Replacing the power distribution board
To replace the power distribution board:
1 Follow the instructions in “Preventing static electricity discharge” on page 28. Make sure
that you turn off the server, then unplug the power cord(s) and all other cables connected
to the server.
2 Follow the instructions in “Opening the server case” on page 29.
3 Remove the power supply modules by following the instructions in “Replacing a power
supply module” on page 46.
4 Remove the power distribution board cover (1) by pulling it out of the chassis.
5 Disconnect the main power, CPU power, backplane power, I
2
C power, and midplane power
cables. See “System board” on page 4 for the location of the connectors on the system
board.
6 Remove the screw (2) holding the power board into the chassis, then press down the tab
(3) and move the power distribution board away from the side of the chassis (4) to
disengage the locking tabs and lift it out of the chassis (5).