Intel recommend 72.6c as the max Tcase temp which I am led to believe is the sensor around the integrated heat spreader and the not the actual core temps. But I would keep the core temps at this max temp personally as well.
Okay thanks, I am not going to increase vcore anymore, I will leave it at 1.355v
I downed the multiplier to 44 so I am at 4.4Ghz
Everything seems stable, I'm running Prime95, it's been going for about 10 hours now.
I can complete all intel burn tests except maximum, which I haven't even bothered to try yet because I got temps of up to 67 on very high.