HP EliteDesk 705 G4 MT Hardware Reference Manual page 31

7. If you are installing an optical drive, install four M3 metric mounting screws (not provided) in the lower
holes on each side of the drive.
NOTE: M3 metric mounting screws can be purchased from HP.
If you are replacing a drive, transfer the mounting screws from the old drive to the new drive.
IMPORTANT: Use only 5 mm long screws as mounting screws. Longer screws can damage the internal
components of the drive.
8. If you are installing a 5.25-inch drive in a vacant drive bay, you may need to remove the metal shield
covering the front of the bay. Insert a flat-bladed screwdriver into the slots on the front of the shield (1)
and rock the shield back and forth (2) to break it free from the chassis.
Removing and Installing drives 25