I recently bought a second monitor for my system and my old GPU ( a single gtx 470 ) is getting way too hot while under a full load. I had thought about getting 2 GTX 570s to run in SLI even before the upgrade, but I'm not sure my PSU could handle it ( Corsair Enthusiast Series 850TX ). Is that a sufficient PSU or should I consider upgrading that as well?
Rest of my Rig:
8gb G skill Ripjaws DDR3/1333 (PC3 10666)
Asus Sabertooth 55i 1156 Mobo
i7-870 @ 2.93gHz