Originally Posted by lenny23
It's kinda late now since you delidded your CPU (10°c less doesn't worth the risk IMO). But what's your vcore??? I was getting very high temps with my 4790k but it was because the auto vcore was 1.301 under load, too high for 4.4 GHz. I set it to manual 1.125 and my temps dropped almost 20°c on P95 and other stress test (even when it's summer and my room is warm). It's running stable so far. Also, run P95 v26.6, newer versions will give you extremely high and unrealistic temps because they run AVX instructions. My cooler is Noctua NH-D15 by the way.
At the time my vcore was set on auto, which puts it at about 1.25v I've since lowered it to 1.2v and its holding up under stress (P95 LargeFFT&SmallFFT) for 9+ hours. Temps have gotten a lot better, I lapped my H212 with sandpaper from 250 grit to 2000 for a polished finish (got rid of a lot of gaps in the surface) and applied less TIM for more metal-to-metal contact where the TIM only fills in remaining gaps.
I also discovered that the IHS sits directly on the die, not the PCB. There is a hairline gap between the IHS edge and the surface of the PCB all the way around. This is good since you want a little gap for air to escape when things get hot and the air expands.