Removal and replacement procedures 32
IMPORTANT: For optimum cooling, install fans in all primary fan locations. For more
information, refer to the fan locations table ("Hot-plug fans" on page 98).
To remove the component:
1. Do one of the following:
o For tower models, open and remove the tower bezel ("Remove the tower bezel" on page 28).
o For rack models, if installed, remove the security bezel ("Remove the security bezel (optional)"
on page 28).
2. Power down the server (on page 29).
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 29).
5. Remove the access panel ("Access panel" on page 33).
6. Remove the air baffle (on page 31).
7. Remove the fan cage.
Remove a fan
WARNING: To reduce the risk of personal injury from hot surfaces, allow the drives and the
internal system components to cool before touching them.
CAUTION: To prevent damage to electrical components, take the appropriate anti-static
precautions before beginning any installation, removal, or replacement procedure. Improper
grounding can cause electrostatic discharge.
For more information on fan numbering and fan population, see "Hot-plug fans (on page 98)."
To remove the component:
1. Do one of the following:
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