HP Deskpro EN Supplementary Manual page 32

3. Disconnect the power cord from the power outlet, and
disconnect any external devices.
WARNING:
Before removing the computer cover, ensure that the
!
computer is turned off and that the power cord is disconnected
from the electrical outlet.
4. Press in the button on each side of the front bezel to release
the quick release cover latches.
5. Slide the computer cover forward about 1 inch (2.5 cm),
then lift it up and off the unit.
To replace the cover, reverse this procedure.
Removing the Computer Cover
Guide to Features & Upgrades 3-7