HP d325 ST Hardware Reference Manual page 30

Hardware Upgrades
10. If removing an AGP card from an AGP expansion socket with a retention
mechanism:
a. Pull the retention arm away from the socket.
b. Carefully rock the card back and forth until the connectors pull free from the
socket.
c. Pull the expansion card straight up from the socket then away from the inside
of the chassis to maneuver the card out of the computer. Be sure not to scrape
the card against the other components.
Removing an AGP Card from a Socket with a Retention Mechanism
If replacing or adding a new AGP card, reverse steps b and c. The retention arm will
secure itself automatically.
2-18 Hardware Reference Guide