Remove a PCIe switch board heat sink

Follow instructions in this section to remove a PCIe switch board heat sink. The procedure must be executed by a trained technician.

Procedure

1. Make preparation for this task.
   1. Remove the PCIe switch shuttle. See Remove the PCIe switch shuttle.
   2. Remove all the front PCIe adapters. See Remove a front PCIe adapter.
2. Remove the PCIe switch board heat sink.
   1. Fully loosen all the screws on the heat sink in the diagonal pattern.
   2. Carefully lift the heat sink from the PCIe switch board.
      Note

      Loosen or tighten the screws with a torque screwdriver set to the proper torque. For reference, the torque required for the screws to be fully loosen or tighten is 0.9 newton-meters, 8 inch-pounds.

      Figure 1. PCIe switch board heat sink removal
      
      
3. With an alcohol cleaning pad, wipe off any thermal grease from the following components:
   • Heat spreader on the PCIe switch board
   • Bottom of the PCIe switch board heat sink