How to disable onboard video card in american megatrends

[drifter80]

Hello,i just bought an ATI Fire GL video card and it is working but i'm having issues with it. if i try to use google chrome or play my dvd rom game my monitor blacks out and says no signal. how can i fix this?

 

[jryan388]

Did you install the right drivers from AMD's website? Did you first uninstall the old drivers?