First, try turning on your computer by disconnecting all unnecessary devices. If this works, open the Device Manager after logging into your system and check the status of your graphics card driver.

With Windows XP, I had to reinstall the driver for my Asus V9520/TD graphics card. The list of drivers and updates available for that card on the Asus support site is so long that I had difficulty ...

You will probably need to re-flash his BIOS. It may be possible to reset them to defaults with a jumper on the mobo. In either case you need to find out EXACTLY what ...