System Cooling; Fans - Supermicro SuperServer 621H-TN12R 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. 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.
2. Ccheck 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
Figure 3-14. Replacing a Fan
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