Dell POWEREDGE C6105 - Manual (Page 149)

Installing System Components | 149
4 Disconnect all the cables from the first power distribution board. See
Figure 3-39.
Note the routing of the cable underneath the tabs 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.
5 Remove the screws securing the first power distribution board to the
system. See Figure 3-38.
6 Lift the power distribution board out of the system. See Figure 3-38.
NOTE: To remove the second power distribution board that is below the first
power distribution board, remove the power distribution board connector
and angle the board before lifting.
Figure 3-38. Removing and Installing a Power Distribution Board
1 1st power distribution board 2 screw (4)
3 power distribution board-connector 4 screw (4)
5 2nd power distribution board