IBM x3650 - System M2 - 7947

11. Remove hard disk drive backplane 1 from the server.
SAS
signal
cable
Power
cable
Hard disk drive
backplane 1
Configuration
cable
a. From backplane 1, disconnect the following cables in the order listed:
v Power cable 1
v SAS signal cable 2
v Configuration cable 3
b. Lift backplane 1 out of the server by pulling it toward the rear of the server
and then lifting it up.
66 System x3650 M2 Type 7947: Installation and User’s Guide