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Chapter 3: Maintenance and Component Installation
Figure 3-6. Replacing a System Fan
Installing Fans
Fan speed is controlled by system temperature via IPMI. If a fan fails, the remaining fans
will ramp up to full speed. Replace any failed fan at your earliest convenience with the same
type and model (the system can continue to run with a failed 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 associated node.
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.
6. Push the fan up from the bottom and out of the top of the housing.
7. 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.
8. Put the fan housing back into the chassis and reconnect the cable.
9.
Replace the drawer and confirm that the fan is working properly before replacing the
chassis cover.
