Dell PowerEdge C6320p Owner's Manual page 159

Figure 105. Removing the upper midplane
7. Remove the screws that secure the midplane holder support to the chassis.
8. Lift the midplane holder support out of the chassis.
Figure 106. Removing the midplane holder support
9. Remove the screws that secure the midplane holder to the chassis.
10. Lift the midplane holder out of the chassis.
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