I added a nice Asus Sabertooth 990 FX and a 750W PSU, to my Oc fx-4100 (4.5ghz OC) I "had" and SLI config with two GTX 560s but since the rebuild one has been artifacting, i did not reinstall windows. But the drivers work fine (As i can see) The video drivers had to be reinstalled on first boot, after the restart i plugged in my LG Optimus Zip and the GPU went crazy, dots lines distorted pixel messes, GPU driver Crashes. After a reboot the same thing happened WITHOUT the phone plugged in. So i unplugged it dusted it and reinstalled it, It seemed to help but only for a few seconds then the artifacting came back. So i use my second card, it has no problems at all (Of course i have NOT plugged my phone in lol it scares me) I have a 5 year warranty on the GPU but i hate sending it back. Im confused? It worked when the driver was not installed, and i dont know if the phone could cause all that/If it did! It should be reversible man! So i dont know, Thats why im asking you awesome guys!