HP 500B - Microtower PC Maintenance And Service Manual page 21

NOTE: You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16
expansion slot.
To remove, replace, or add an expansion card:
1. Prepare the computer for disassembly
2. Remove the access panel
3. Locate the add-in cards at the back of the computer.
Figure 2-12 Locating the expansion card slots
4. On the back of the computer, remove the screw from the bracket cover for the add-in cards.
Figure 2-13 Opening the slot cover lock
(Preparation for Disassembly on page
(Access Panel on page 4).
3).
Expansion Cards 13