HP ProLiant ML30 Gen10 Plus Maintenance And Service Manual page 61

To replace the component, reverse the removal procedure.
Removing and replacing the media bay blank Removing and replacing the media bay blank
CAUTION: To prevent improper cooling and thermal damage, do not operate the server unless all bays are populated CAUTION:
with either a component or a blank.
Procedure Procedure
1. Power down the server.
2. Remove all power:
a. Disconnect each power cord from the power source.
b. Disconnect each power cord from the server.
3. Disconnect all peripheral cables from the server.
4. Remove the front bezel .
5. Press and hold the latch (callout 1), and then pull out the blank from the bay (callout 2).
To replace the component, reverse the removal procedure.
HPE ProLiant ML30 Gen10 Plus Server Maintenance and Service Guide 61