HP rp5800 Reference Manual page 56

5. If the computer is on a stand, remove the computer from the stand.
6. Remove the computer access panel.
7. Rotate the drive cage for internal drives to its upright position.
Figure 2-58
8. Rotate the power supply to its upright position. The hard drive is located beneath the power
supply.
NOTE:
from the rear of the computer so that the connectors do not block the power supply from rotating
all the way back.
Figure 2-59
50 Chapter 2 Hardware Upgrades
Rotating the Drive Cage Up
If you are using a PS/2 mouse and/or PS/2 keyboard, make sure they are unplugged
Raising the Power Supply
ENWW