So after I finally got my rig back together; Another issue dropped upon me. I get a wonderful set of issues, Namely; If I enable SLI within Nvidia Control Panel; the screen goes black, and left long enough, restarts claiming it's blue-screened. I've already assaulted the machine with driver sweeper, and gone so far to restore from an image I made when I first installed windows 7 on the machine in the first place. Still the same issue. Torn down both GPUs and replaced the thermal paste with Chillfactor III, previously I was using MX4, which can be conductive in some circumstances, so I had to remove that from the equasion. The crash itself points to nvlddmkm.sys, which a bit of googling showed to be usually related to bugged drivers or dying hardware. Fun. Anyone have any ideas? I'd rather not have to scrap one or both of my cards. Or RMA them with KFA2, simply because I don't want to get caught out again. Sadly I don't have another machine to try them in. EDIT; so I'm testing each GPU seperately, each one is getting loaded to the full with Furmark and then left to see what the temp caps out at. So far; they seem okay on Stock volts. It might just be drivers hating on me for trying SLI on AMD. Even though it's meant to be supported.