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## Remove the Power Distribution 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. Remove the system from the rack.

   See Remove the Server From the Rack.

2. Remove the motherboard assembly.

   See Remove the Motherboard Assembly.

3. Disconnect the top cover interlock cable from the power distribution board.
4. Disconnect the two ribbon cables and the three-pin wire cable.
5. Remove the five screws that secure the power distribution board.
6. Grasp the bus bar and move the bus bar/power distribution board assembly to the left, away from the connector board and then up off the three standoffs.
7. If the power distribution board will be replaced, remove the bus bar from the assembly so it can be attached to the replacement power distribution board.

##### Related Information

- Install the Power Distribution Board

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