HP ProLiant DL360 SERIES User Manual page 61

6. Remove the expansion board from the slot, if installed ("Expansion Board"
on page 58).
7. Remove the applicable PCI riser boards from the assembly:
IMPORTANT: When removing the two parts of the riser board, pay
attention to the orientation of the slots on each side. This information is
important for subsequent procedures.
a. Remove the riser board with the slot for full-length expansion boards.
b. Repeat the previous step for the riser board with the slot for half-length
expansion boards, if needed.
Hardware Options Installation 61