If you put a video card in a pc with an integrated video card, do you have to disable the on-board card first?

Nope ... Depending on your OS and Motherboard, you can just install the Graphics card, plug your monitor in, and reboot



Good Luck!|||Most modern BIOS will detect the new video card and disable the on board video automatically.

Otherwise, one may have to go into the BIOS and disable the on-board video....|||Nope. Just be sure to plug your monitor cord into your graphics card instead of your motherboard. You may need a new graphics driver though