Installing A 3.5-Inch Device - HP EliteDesk 800 Hardware Reference Manual

Installing a 3.5-inch device

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:
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.
5. If the computer is on a stand, remove the computer from the stand.
6. Remove the computer access panel.
7. Remove the front bezel. If you are installing a drive in a bay covered by a bezel blank, remove
the bezel blank. See
8. Install 6-32 guide screws in the holes on each side of the drive.
NOTE:
Installing and removing drives on page 73
When replacing a drive, transfer the four 6-32 guide screws from the old drive to the new one.
ENWW
Regardless of the power-on state, voltage is always present on the system board
Removing bezel blanks on page 61
HP has supplied four extra 6-32 guide screws on top of the drive cage. Refer to
for more information.
for an illustration of the extra guide screws location.
Installing and removing drives 77