System Fans - Supermicro SuperServer SYS-221P-C9R User Manual

3.8 System Fans

Three hot-swap fans provide cooling. They can be replaced without powering down the
system.
Fan speed is controlled by a system temperature setting in IPMI. 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. Determine which fan is failing. If possible, use IPMI. If not, remove the chassis cover
while the power is on, and examine the fans to determine which one has failed.
2. Remove the failed fan's power cable from the backplane.
3. Lift the fan housing up and out of the chassis.
4. Push the fan up from the bottom and out of the top of the housing.
5. Place the replacement 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 direction as the
arrows on the other fans.
6. Put the fan housing back into the chassis and reconnect the cable.
7. Replace the drawer and confirm that the fan is working properly before replacing the
chassis cover.
Note: If the server is to be left on, the cover should only be removed temporarily to locate
a failed fan.
Chapter 3: Maintenance and Component Installation
Figure 3-12. System Fan Placement
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