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## Remove the Fan Power Board

Note - This is a cold service procedure that must be performed by qualified service personnel. See Cold Service, Replaceable by Authorized Service Personnel for more information about this category of service procedures.

| Caution - The server must be fully shut down and the power cords disconnected.

| Caution - This procedure involves handling circuit boards that are extremely sensitive to static electricity. Ensure that you follow ESD preventative practices to avoid damaging the circuit boards.

| Caution - Components inside the chassis might be hot. Use caution when servicing components inside the chassis.

1. Perform the preliminary steps required for cold service procedures.

   See Cold Service, Replaceable by Customer for instructions.

2. Disconnect the power cables.

   See Disconnect Power Cords .

3. Extend the server into the maintenance position.

   See Extend the Server.

4. Attach an antistatic wrist strap.
5. Remove the top cover.

   See Remove the Top Cover.

6. Remove all the fan modules as shown in panel 1.
7. Release the latch that's in the middle of the fan power board assembly and swing open the access door, as shown in panel 2.
8. Disconnect the SAS and SATA data cables from their respective connectors on the disk backplane and move them out of the way, as shown in panel 3.

   | Caution - Carefully fold the cables back over the mid-wall so that they are as clear as possible of the fan power board area. It is important to minimize the risk of damaging them when you lift the fan power board assembly out of the fan compartment.

9. Disconnect the power and data cables from the fan power board, as shown in panel 3.
10. Loosen the two captive screws that secure the fan power board to the chassis, as shown in panel 4.
11. Slide the fan power board toward the front of the chassis and then lift it up and out.

##### Related Information

- Install the Fan Power Board

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