Hi guys, I'm thinking in borrowing a GTX680 (PC) from a friend to test on my cMP (MP4,1) with El Capitan. However, I only have a single 6-pin cable. Is it safe to test? What should I expect? My understanding is that: - the card does not requires drivers in recent versions of OSX since the iMac13,2 has a GTX680MX (which I suppose is very similar) Do I need to install the drivers anyway?