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Removal and replacement procedures 50
5.
Remove the fan louver.
CAUTION:
Do not operate the server unless a fan louver is installed next to fans 1 and 4. If these
louvers are not installed, the server overheats.
To replace the component, reverse the removal procedure.
I/O expansion board
CAUTION: To prevent improper cooling and thermal damage, do not operate the server unless
all expansion slots have either an expansion slot cover or an expansion board installed.
IMPORTANT: When either optional I/O expansion board in installed in a two-processor
configuration, the second processor must be installed in socket 3.
1. Power down the server (on page 26).
2. Extend the server from the rack (on page 26).
3. Remove the processor memory drawer shipping screws, if installed. Retain the screws for future use
("Processor memory drawer shipping screw locations" on page 28).