Matrox ATC RG-200DL User Manual page 6

Your Matrox card is now installed. Before restarting your computer, first connect your RG400SL unit
to your computer, then connect your monitors and your peripherals to your unit
setup", page 7). After connecting, restart your computer and install your Matrox software.
WARNING:
your computer to avoid damaging electronic parts.
6 Matrox RG Series – User Guide
If your computer doesn't restart after your Matrox card is installed, turn off
(see "Connection