HPE ProLiant DL380 Gen11 User Manual page 87

2. Remove all power:
a. Disconnect each power cord from the power source.
b. Disconnect each power cord from the server.
3. Do one of the following:
Extend the server from the rack .
Remove the server from the rack .
4. Remove the access panel .
5. Remove the rear wall blank or riser cage.
6. Remove the OCP adapter blank.
7. Install the network adapter.
HPE ProLiant DL380 Gen11 Server User Guide 87