IBM x3650 M3 Installation And User Manual page 81

Figure 53. SAS controller removal
9. Remove the SAS controller front retention bracket from the server.
Figure 54. SAS controller front retention bracket removal
10. Connect one end of the internal power cable that comes with the 4 Pac HDD
upgrade option kit into the hot-swap SAS/SATA power connector on the
system board.
Chapter 2. Installing optional devices
67