Removing the rear system fan

This procedure applies only to 4U server models with non-hot-swap power supplies.

To remove the rear system fan on the 4U server model with non-hot-swap power supplies, complete the following steps.

1. Turn off the server and all attached devices; then, disconnect all power cords and external cables.
2. Carefully turn the server on its side so that it is lying flat, with the cover facing up.
   Attention

   Do not allow the server to fall over.
3. Remove the side cover (see Removing the side cover).
4. Remove the air baffle (see Removing the air baffle).
5. Remove any adapters that impede access to the fan and the fan connector on the system board (see Removing an adapter).
6. Remove the system fan:
   1. Disconnect the fan cable from the system board (see System-board internal connectors).
   2. While you support the system fan with one hand, pull the rubber grommet away from the chassis to make it thinner; then, pull the fan toward the front of the server to remove the rubber grommet through the hole on the chassis. Repeat this step till all the remaining rubber grommets are removed.
   3. Lift the system fan up and out of the chassis.
   Figure 1. System fan removal for 4U server model with non-hot-swap power supplies
   
   
7. If you are instructed to return the fan, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.