HP hpe proliant dl20 gen9 User Manual page 49

Disconnect each power cord from the power source.
a.
Disconnect each power cord from the server.
b.
Do one of the following:
4.
Extend the server from the rack (on page 18).
o
Remove the server from the rack (on page 19).
o
Remove the access panel (on page 20).
5.
Remove the air baffle (on page 24).
6.
Remove the slot covers.
7.
Install the Smart Storage Battery holders.
8.
Hardware options installation 49