HP hpe proliant dl20 gen9 User Manual page 42

Align the PCI riser board with the corresponding connector on the system board, and then press
11.
down the riser cage.
CAUTION: To prevent improper cooling and thermal damage, do not operate the server
unless all PCI slots have either an expansion slot cover or an expansion board installed.
Connect the Mini-SAS cable to the drive backplane.
12.
Install the access panel (on page 21).
13.
Do one of the following:
14.
Slide the server into the rack.
o
Install the server into the rack
o
Connect each power cord to the server.
15.
Connect each power cord to the power source.
16.
Power up the server (on page 17).
17.
If removed, install the security bezel
18.
("Installing the server into the
("Security bezel option" on page 36).
rack" on page 30).
Hardware options installation 42