Hardware Reference Guide HP rp5800

7. Rotate the power supply all the way back to access the full-height expansion card retention
latch.
NOTE: If you are using a PS/2 mouse and/or PS/2 keyboard, make sure they are unplugged
from the rear of the computer so that the connectors do not block the power supply from rotating
all the way back.
Figure 2-23 Raising the Power Supply
8. Pull back the green tab on the full-height expansion card retention latch to open the latch.
Figure 2-24 Opening the Full-Height Slot Cover Retention Latch
ENWW Installing a Full-Height Expansion Card 27