Removal and replacement procedures 40
To replace the component, reverse the removal procedure.
Power supply backplane
CAUTION: To prevent improper cooling and thermal damage, do not operate the server unless
all bays are populated with either a component or a blank.
To remove the component:
1. Do one of the following:
o For tower models, open and remove the bezel ("Remove the tower bezel" on page 26).
o For rack models, if installed, remove the security bezel (on page 26).
2. Power down the server (on page 25).
3. Remove all power:
a. Disconnect each power cord from the power source.
b. Disconnect each power cord from the server.
4. Do one of the following:
o For tower models, place the server on a flat, level surface with the access panel facing up.
o For rack models, extend the server from the rack (on page 27).
5. Access the product rear panel.
6. Remove all power supply modules from the power supply cage ("Power supply module" on page 39).
WARNING: To reduce the risk of personal injury from hot surfaces, allow the power supply or
power supply blank to cool before touching it.
7. Remove the screws, and slide the power supply cage out of the server:
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