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Remove the top chassis cover while the system is still running to determine which of
the fans has failed. Then power down the system before replacing a fan. Removing
the power cord(s) is also recommended as a safety precaution.
Adding a System Fan to Open Fan Housing
1. Turn off the power to the system and unplug the AC power cords.
2. Remove the dummy fan from the fan tray.
3. Place the new fan into the vacant space in the housing while making sure the
arrows on the top of the fan (indicating air direction) point in the same direc-
tion as the arrows on the other fans.
4. Connect the fan wires to the fan headers on the serverboard.
5. Power up the system and check that the fan is working properly before re-
placing the chassis cover.
Replacing System Fans
1. After determining which fan has failed, turn off the power to the system.
2. Unplug the fan wiring from the serverboard and remove the failed fan.
3. Place the new fan into the vacant space in the housing while making sure the
arrows on the top of the fan (indicating air direction) point in the same direc-
tion as the arrows on the other fans.
4. Reconnect the fan wiring to the exact same chassis fan header as the previ-
ous fan used.
5. Power up the system and check that the fan is working properly before re-
placing the chassis cover.
Chapter 6: Advanced Chassis Setup
6-3
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