Remove the CX-7 carrier board and CX-7 mezz board

Follow instructions in this section to remove the CX-7 carrier board and CX-7 mezz board. The procedure must be executed by a trained technician.

Procedure

1. Make preparation for this task.
   1. Remove the top cover. See Remove the top cover.
   2. Disconnect the cables that are connected to the CX-7 carrier board and the CX-7 mezz board.
      CAUTION

      • Hold the cable connector at 45 degree angle when inserting it into the port.
      • Have extremely precaution when reseating the connectors that have a 45 degree label on them as they are fragile and will get damage if not installed in the correct 45 degree angle.
        
        
      • There is a latch on the power cable connected to the power connector 2 on the CX-7 carrier board. Slightly press and hold the cable latch; then, disconnect the cable from the CX-7 carrier board.
        Figure 1. Power cable disconnection
        
        
   3. Remove the CX-7 assembly. See Remove the CX-7 assembly.
   4. Remove the CX-7 heat sinks. See Remove a CX-7 heat sink.
2. Unfasten the four Torx T15 screws on the CX-7 mezz board in the diagonal pattern; then, remove the CX-7 mezz board from the CX-7 carrier 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, 7.96 inch-pounds.

   Figure 2. CX-7 mezz board removal