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Chapter 3: Maintenance and Component Installation
System Cooling
Four 4-cm fans provide the cooling for the system. Note that these fans are not hot-plug, and
so must be replaced when they fail.
It is very important that the chassis top cover is installed for the cooling air to circulate properly
through the chassis and cool the components.
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Figure 3-20. Changing a System Fan
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. Remove power from the system as described in Section 3.1
3. Unplug the fan cable from the motherboard and remove the failed fan from the chassis.
4. Replace the failed fan with an identical 4-cm fan, available from Supermicro.
5. Push the new 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. Reposition the fan housing back over the two mounting posts in the system, then
reconnect the fan wires to the same fan headers on the motherboard.
7. 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.