Compaq Evo W8000 Hardware Reference Manual page 51

Hardware Upgrades
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5. Slide the expansion board into the socket. Press firmly on the
board so that the board seats properly in the socket.
If you are installing a full-length expansion board, make sure to
engage the card guide.
AGP Pro Specifications allow an AGP expansion board (with
additional components or PCI expansion boards attached) to occupy
up to two adjacent PCI sockets on your workstation system board.
6. Replace the screw to secure the board in the expansion slot.
Installing an expansion board
7. Reassemble the workstation.
8. Reconfigure the workstation, if necessary.
Compaq Evo Workstation W8000 Hardware Reference Guide