Dell POWEREDGE C6105 - Manual (Page 156)

156 | Installing System Components
5 Remove the screws that secure the cooling-fan brackets to the chassis.
See Figure 3-42.
6 Lift the cooling-fan brackets out of the chassis. See Figure 3-42.
Figure 3-42. Removing and Installing the Cooling-Fan Brackets
1 cooling fan bracket (long) 2 Screw (14)
3 cooling fan bracket (short)
7 Disconnect all the cables from the upper middle plane. See Figure 5-9.
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.
8 Remove the screws that secure the upper middle plane to the middle
plane holder. Figure 3-43.
9 Lift the upper middle plane out. See Figure 3-43.