System Cooling; Fans - Supermicro SuperServer 220U-TNR User Manual

3.7 System Cooling

Fans

The chassis contains four 8-cm high-performance fans. Fan speed is controlled by the BMC
depending on the system temperature. If a fan fails, the remaining fans will ramp up to full
speed. The system will continue to run with a failed fan, although it may shut down if the
heat gets too great. Replace any failed fan at your earliest convenience with the same model.
Failed fans can be identified through the BMC.
Changing a System Fan
1. Determine which fan has failed using the BMC, or if necessary, open the chassis while
the system is running. Never run the server for long without the chassis cover.
2. Push the release tab and pull the failed fan from the chassis. Fans can be replaced
while the system is running.
3. Replace the failed fan with an identical fan, available from Supermicro. Push the new
fan into the housing, making sure the air flow direction is the same.
4. Power up the system and check that the fan is working properly and that the LED on the
control panel has turned off. Finish by replacing the chassis cover.
Chapter 3: Maintenance and Component Installation
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Figure 3-9. Fan Positions and Numbering
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