I decided to up my requirements to 4 hours stable in IXTU, and found out I needed more voltage. Gave it another bump, and all was good. My GPUs, on the other hand, I think are going to get dropped back 50MHz, as I can get them to pass hours of Heaven and as many Firestrike runs as I can throw at it, but eventually they will crash in Rocket League. I've definitely got temperature headroom, and a little left on the voltage slider, though. I don't really want to drop those clocks, but I'm creeping on that power limit quick.