Removing A 9.5 Mm Slim Optical Drive - HP ProDesk 400 G4 SFF Hardware Reference Manual

Removing a 9.5 mm slim optical drive

CAUTION: All removable media should be taken out of a drive before removing the drive from the computer.
1. Remove/disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as compact discs or USB flash drives, from the computer.
3. Turn off the computer properly through the operating system, then turn off any external devices.
4. Disconnect the power cord from the power outlet and disconnect any external devices.
CAUTION:
the system is plugged into an active AC outlet. You must disconnect the power cord to avoid damage to
the internal components of the computer.
5. Remove the computer access panel. See
6. Disconnect the power cable (1) and data cable (2) from the rear of the optical drive.
7. Press the release lever on the back of the drive (1), and then slide the drive through the front bezel (2).
Regardless of the power-on state, voltage is always present on the system board as long as
Removing the computer access panel on page 5.
Removing and installing drives 23