HP ProLiant DL388e Gen8 Server - Manual (Page 42)

Hardware options installation 42
7. Install the rear SFF drive cage.
8. Connect the drive power cable to the rear drive cage.
9. Connect the shorter SATA and sideband signal cables to the system board:
a. Remove the primary PCI riser cage (" Remove the PCI riser cages " on page 24 ).
b. Connect the sideband signal cable from the rear drive cage to the system board.