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6-5
System Cooling
Four 8-cm fans provide the cooling for the system. It is very important that the
chassis top cover is properly installed and making a good seal in order for the cooling
air to circulate properly through the chassis and cool the components.
System Fan Failure
Fan speed is controlled by system temperature by means of a BIOS setting. If a
fan fails, the remaining fans will ramp up to full speed. The system can continue to
run with a failed fan. Replace any failed fan at your earliest convenience with the
same type and model.
Changing a System Fan
1. If necessary, open the chassis while the system is running to determine which
fan has failed. Never run the server for an extended period of time with the
chassis cover open.
2. After determining which fan needs to be replaced, power down the system as
described in Section 6-1.
3. Remove the node drawer from the chassis.
4. Remove the failed fan's power cable from the backplane.
5. Lift the fan housing up and out of the chassis.
Chapter 6: Advanced Chassis Setup
6-7
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