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Click on the playback arrow at the lower left
of the image above to launch the video

To remove the system board:

1. Turn off the HMC and peripheral devices and disconnect all power cords.
2. Turn the HMC on its side so that it is lying flat with the cover facing up.
3. Unlock and remove the side cover. (Refer to Removing and Replacing the Cover.
4. Note where each cable is connected. Then, disconnect all cables from the system board.
5. If you have not already rotated the drive cage out of the chassis, press and hold the drive cage release tab. Then, rotate the drive cage out of the chassis until the retaining tab on top of the cage locks into place.
6. Remove any of the following components that are installed on the system board and put them in a safe, static-protective place:
   • Adapters (Refer to Removing and Replacing the Adapter.)
   • Microprocessor and fan sink (Refer to Removing and Replacing the Microprocessor and Fan Sink.)
   • DIMMs (Refer to Removing and Replacing the Memory Module (DIMM).)
   • Battery (Refer to Removing and Replacing the Battery.)
   • SAS/SATA controller (Refer to Removing and Replacing the SAS/SATA Controller.)
7. Remove the ten screws that secure the system board to the chassis.
8. Remove the blue plastic baffle.
9. Slide the system board toward the front of the HMC to disengage the tabs in the chassis. Then, carefully lift the system board out of the HMC.
10. If you are instructed to return the system board, follow all packaging instructions, and use any packaging materials supplied to you for shipping.