Matrox Orion Installation And Hardware Reference page 18

18 Chapter 2: Hardware installation
9. Secure the adapter bracket with the reserved screw.
A board installed in an AGP or PCI slot should look like this:
Note: AGP version presented here.
PCI version might vary slightly.
10. Replace the cover of your computer.
11. Attach your monitor(s) and input video sources. For details,
see the Connecting external devices section.
12. Turn on your computer.
Under Windows 2000, when you boot your computer,
Windows' Plug-and-Play system will detect a new
Multimedia Video Device and you will be asked to assign it
a driver. At this point, you should click Cancel because the
driver will be installed during the installation of MIL or one
of its derivatives.