Matrox Electronic Systems PCI G450, LX G450, LE G450, DVI G450 manual Main troubleshooting, Cause

2From the startup menu, choose Windows “VGA mode”.

Main troubleshooting

This section addresses possible problems that could prevent you from using your computer.

Problem	Computer doesn’t display information or boot after Matrox card is installed
Cause	Your Matrox card may not be properly installed.
Solution	Make sure your Matrox card is properly installed. Specifically, make sure the card is firmly
	inserted in its expansion slot and that all connections to it are firmly in place. For more
	information, see “Hardware installation”, page 2.
Cause	There may be an unsupported graphics adapter in your computer. (For Matrox multi-display
	mode in Windows NT, all graphics cards in your computer must be Matrox cards supported
	by the display driver.)
Solution	If an unsupported graphics card is plugged into an expansion slot, remove it.
Solution	If a graphics adapter is built into your computer motherboard, your system may not have
	automatically disabled it when you inserted your Matrox card. Check your system manual for
	instructions on how to disable your computer’s built-in graphics adapter.
Cause	Your computer BIOS (Basic Input/Output System) may not be up to date. For more
	information on your computer BIOS, see your system manual.
Solution	Reinstall your previous graphics card and, if possible, update your computer BIOS. This can
	usually be done with software from the manufacturer of your computer. Contact your system
	vendor or manufacturer to get a BIOS update for your computer.
	To get the correct BIOS update, you may need to know the serial number your computer
	displays when it restarts. (This number is usually in the lower-left corner of the display.)

Cause The BIOS of your Matrox graphics card may need to be updated or restored.

Solution For advanced users – If you have another VGA-compatible graphics card (ISA or PCI), you can try resetting the BIOS of your Matrox graphics card.

1Turn off your computer and insert the other graphics card into an expansion slot. For more information on expansion slots, see “Choose an expansion slot”, page 3.

2Plug your monitor into the other graphics card and restart your computer.

14 Matrox Graphics Card – User Guide