HP apollo 4200 gen9 Maintenance And Service Manual page 34

To remove the server from a Hewlett Packard Enterprise, Compaq-branded, Telco, or a third-party rack:
Back up all server data.
1.
Power down the server (on page 26).
2.
Remove all power:
3.
Disconnect each power cord from the power source.
a.
Disconnect each power cord from the server.
b.
Disconnect all peripheral cables from the server.
4.
Remove all installed power input modules.
5.
If a rear drive cage option is installed, remove all rear drives
6.
cage" on page 29).
Remove all the drives installed in the front drive cages 1 and 2
7.
cages" on page 27).
Remove the server from the rack:
8.
Loosen the rack ear thumbscrews.
a.
Pull the thumbscrews to extend the server out of the rack until the rack rail lock is engaged.
b.
("Remove a drive from the rear drive
("Remove a drive from the front drive
Removal and replacement procedures 34