HP EliteDesk 800 Hardware Reference Manual page 32

c. Connect the fan plug to the system board (3).
21. Align the hard drive guide screws with the slots on the hard drive cage, press the hard drive down into
the cage, then slide it forward (1) until it stops and locks in place.
22. Rotate the hard drive latch down to engage the hard drive (2).
23. Replace the access panel.
For instructions, see
24. If the computer was on a stand, replace the stand.
25. Reconnect external devices, plug in the power cord, and then turn on the computer.
26. Lock any security devices that were disengaged when the access panel was removed.
26 Chapter 3 Hardware upgrades
Replacing the computer access panel on page 14.