HPE ProLiant ML150 Gen9 User Manual page 52

If installing an expansion board in a PCIe x16 slot, open the latch connector.
10.
Install the expansion board and close the slot latch.
11.
NOTE: For more information about installing an expansion board, see the documentation
that ships with the option.
Connect any required internal or external cables to the expansion board. Refer to the documentation
12.
that ships with the expansion board for details.
Install the system air baffle (on page 22).
13.
If removed, install the PCI air baffle
14.
Install the access panel (on page 19).
15.
Return the server to an upright position.
16.
Connect each power cord to the server.
17.
Connect each power cord to the power source.
18.
Power up the server (on page 17).
19.
Install and lock the tower bezel
20.
("PCI air baffle option" on page 57).
("Install the tower bezel" on page 18).
Hardware options installation 52