Make sure your BIOS defaults to looking for video cards in PCI-E or PCI.
Open up device manage
Uninstall the integrated drivers
Turn off computer
Put in video card
Go in bios
Disable onboard video card
Save changes and start up windows
Install drivers from ATi's website
have fun -_-
^ Change the setting to PCI-E to be safe, although on AUTO the MB should automatically detect and use the new card of it`s own accord, it
wo n`t hurt to be polite and tell it.
Which is what ARES_ ment in the top line of his post, then boot up and follow his instructions from line two; Open up Device Manager.
Just install your current drivers, and see how it goes, and I mean current for your gfx card. If you uninstall the IGP drivers youll still have Windows drivers, which are slow, and will give you a resolution of 800x600, so dont be alarmed