HP ProLiant DL180 Gen9 User Manual page 59

Release the Mini-SAS cables from the right front chassis cable clip.
c.
If the 8-bay LFF hot-plug drive cage is currently connected to an HBA, do the following:
6.
Disconnect the existing Mini-SAS cables from the drive backplane and the HBA.
a.
Remove the primary PCI riser cage
b.
Remove the HBA from the PCI riser cage.
c.
Install the storage controller:
7.
("Remove the PCI riser cages" on page 25).
Hardware options installation 59