would like to know if i can replace my hd set top box (explorer 3250hd) with a hdtv vidio card i have express x16 slot and express x1 slot plus 1 open pci I am running an ati 1600 512ram card dvi out to 52in rca dvi in. But I have only one dvi in and i have to swap between the 3250 and the comp.