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

Installing a 9.5 mm slim optical drive

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. Remove the front bezel if you are installing a drive in a bay covered by a bezel blank, and then remove
the bezel blank. See
7. Align the small pin on the release latch with the small hole on the side of the drive and press the latch
firmly onto the drive.
24 Chapter 2 Hardware upgrades
Regardless of the power-on state, voltage is always present on the system board as long as
Removing a slim optical drive bezel blank on page 8
Removing the computer access panel on page 5.
for more information.