Dell POWEREDGE C6105 Hardware Owner's Manual page 117

CAUTION: To prevent damage to the drives and backplane, you must remove the
hard drives from the system before removing the backplane.
CAUTION: You must note the number of each hard drive and temporarily label
them before removal so that you can replace them in the same locations.
4
Remove the screws that secure the hard-drive cage to the chassis. See
Figure 3-32.
Figure 3-32. Removing and Installing the 2.5-inch Hard-Drive
Backplane
1 hard-drive cage
5 Remove the screws that secure the front-panel assemblies to the chassis.
See Figure 3-32.
6
Disconnect all the cables from the backplane. See Figure 5-6 for 2.5-
inch hard drives.
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.
2 screw (10)
Installing System Components | 117