HP Workstation x1000 Installation Manual page 19

HP Visualize fx2+, fx4+, fx6+ Graphics Cards and Texture Module
7. Verify that the card's contact fingers are fully seated in their
connectors before securing them with the three screws: two accessory
slot screws and one retaining screw. The retaining screw you need to
secure is located on the plastic speaker and fan mount as shown
below.
Chapter 1
Installing the HP Visualize fx+ Graphics Card
Retaining RR
Screw
19