Remove the Motherboard

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Caution - The motherboard should be serviced only by an Oracle qualified service technician.

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Caution - Use of the ILOM backup utility prior to removing the motherboard. This utility backs up the ILOM configuration of the service processor.

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1. Prepare the server for service.
   1. Power off the server and disconnect the power cords from the power supplies.

      See Powering Down the Server

   2. Extend the server to the maintenance position.

      See Extend the Server to the Maintenance Position.

   3. Attach an antistatic wrist strap.

      See Take Antistatic Measures.

   4. Remove the server top cover.

      See Remove the Server Top Cover.

2. Remove the following reusable components

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   Caution - During the motherboard removal procedure, it is important to label the power supplies with the slot numbers from which they were removed (PS0, PS1). This is required because the power supplies must be reinstalled into the same slots from which they were removed; otherwise, the server FRU top-level indicator (TLI) data might be lost. When a server requires service, the FRU TLI is used by Oracle to verify that the server warranty has not expired.

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   1. Fan modules.

      For instructions, see Remove a Fan Module.

   2. Power supplies.

      For instructions, see Remove a Power Supply.

   3. PCIe risers and attached PCIe cards.

      For instructions, see Servicing PCIe Risers (CRU).

3. Disconnect the disk backplane power cable from the motherboard [1].
   
4. Disconnect disk backplane LED cable from the motherboard [2].
5. Disconnect the front indicator module (FIM) cable from the motherboard [3].
6. Carefully lift the SAS cables that you disconnected from the internal HBA out of the cable trough.
7. Remove the server mid-wall [5].
   1. Loosen the four green captive screws that secure the mid-wall to the server chassis.
   2. Lift the mid-wall slightly up and toward the front of the server to disengage it from the mushroom standoffs that are located on the server chassis sidewall (one on each end of the mid-wall).
   3. Place the mid-wall and SAS cables toward the front of the server out of the way of the motherboard.
8. Remove the motherboard from the server chassis [6].
   1. Grasp the middle of the air duct in the front and back, slide the motherboard toward the front of the server, and lift it slightly to disengage the six mushroom standoffs that are located on the server chassis under the motherboard.
   2. Lift the motherboard out of the server chassis and place it on an antistatic mat, and next to the replacement motherboard.
9. Remove the following reusable components from the motherboard and install them on the replacement motherboard.
   1. Internal USB flash drive.

      For instructions, see Servicing the Internal USB Flash Drive (CRU).

   2. DDR3 DIMMs.

      For instructions, see Servicing the DIMMs (CRU).

   3. Processors.

      For instructions, see Servicing Processors (FRU).

Related Information

• Install the Motherboard