Excuse my ignorance as never had a crossfire/sli mobo so quick question,...I understand that if I want to use the crossfire/sli bit i need the relavant nvidia-sli or ati-crossfire , but if i wanted to just use one graphics card say on an crossfire mobo eg..gigabyte GA-MA790fx-ds5(crossfire) mobo do i have to use an ati card ? thanks Rob






