HP 2240 Owner's Manual page 177

5.
Place PCI, GSC, or EISA board you are installing in the board
guides and slide firmly into the connector. Check to see the
board is evenly inserted to seat properly. See Figure B–39.
Figure B–39.Installing a PCI, GSC, or EISA or Graphics Board in
6.
Secure board with one screw in top of board connector bracket.
the PCI/EISA Assembly
B-59