IBM x3650 - System M2 - 7947

27. Connect the SAS signal cables to the SAS expander card:
a. Connect the SAS signal cable from hard disk drive backplane 2 to the right
front connector on the SAS expander card (as facing the front of the
server).
SAS signal cables
SAS expander
card
Backplanes 1 - 3
b. Connect the SAS signal cable from hard disk drive backplane 3 to the left
front connector on the SAS expander card (as facing the front of the
server).
74 System x3650 M2 Type 7947: Installation and User’s Guide