HP P6230F - Pavilion - Desktop PC Supplementary Manual page 29

4 Loosen the side panel thumbscrew on the back of the
computer.
5 Grasp the handle, and pull the side panel about
2.5 cm (1 inch) toward the back of the computer to
release it.
— Removing and Replacing an Add-In Card
537489-001
6 Tilt out the top of the side panel, and then lift the panel
from the computer.
--
7 Lay the computer on the side.
8 Locate the add-in cards on the back of the computer.
Identify the one you want to replace.
3