Dell PowerEdge C6220 II - Manual (Page 283)

Removing and Installing System Components | 283
5 Disconnect front panel cables from the power distribution board. See
Figure 3-78.
Note the routing of the cable on the chassis as you remove them from
the system. You must route these cables properly when you replace
them to prevent the cables from being pinched or crimped.
6 Remove the screws that secure the hard-drive cage to the chassis. See
Figure 3-95.
Figure 3-95. Removing and Installing the Direct Backplane
1 hard-drive cage 2 screw (2)