Replacing The Optical Disc Drive - HP EliteOne 800 Hardware Reference Manual

6. To replace the access panel, set the panel on the back of the computer, slightly above the stand,
and slide it down into place.
Figure 2-39
7. Reconnect the power cord and external devices.
8. Lock any security devices that were disengaged when the access panel was removed.
9. Place the computer in the upright position.
10. Turn on the computer.

Replacing the optical disc drive

The optical disc drive is located above the hard disc drive on the left side of the computer (when
viewed from behind).
1. Remove all removable media, such as compact discs or USB flash drives, from the computer.
2. Turn off the computer properly through the operating system, then turn off any external devices.
3. Disconnect the power cord from the power outlet and disconnect any external devices.
CAUTION:
as long as 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.
4. Remove/disengage any security devices that prohibit opening the computer.
5. Place the computer face down on a soft flat surface. HP recommends that you set down a
blanket, towel, or other soft cloth to protect the bezel and screen surface from scratches or other
damage.
40 Chapter 2 Hardware repair and upgrade
Replacing the access panel
Regardless of the power-on state, voltage is always present on the system board