Posted 13 June 2006 - 12:33 PM
You will need to enter the BIOS menu when restarting your computer. There may be a message displayed on the screen telling you which key to press to enter the BIOS. For most systems it is one of Delete, Esc, F1 or F2.
When you are in the BIOS one of the catagories will allow you to disable the on-board graphics device. This presupposes that the motherboard doesn't automatically disable the on-board graphics when it detects a new graphics card.