My PC consists of an Intel Intel Core i7 i7-4790, and an XFX R9 290x. I have 2 monitors, but the second one is strictly used by VGA. My GPU does not come with a VGA port, but I have an Nvidia Geforce GTX 660 ti laying around from my last build. Is it possible for me to use the Nvidia GPU with my R9 290x for my dual monitors? Thanks