11. Remove hard disk drive backplane from the server.
a. From backplane, disconnect the following cables in the order listed:
v Power cable 1
v SAS signal cable 2
v Configuration cable 3
Figure 55. Connecting internal power cable
Figure 56. Hard disk drive backplane removal
68 System x3650 M3 Types 4255, 7945, and 7949: Installation and User’s Guide