Dude, I know this is really late, but that is terrible, don't do that, these guys are leading you astray.
The tCase on I7 2600k & 2700k is 72.6 c, meaning, if you go over that, degradation to the cpu is occuring, and also causing damage to your on die temp sensors.
The tCase is there to tell you NOT TO GO OVER THAT TEMPERATURE OR YOU WILL WRECK YOUR ****!
If you want 5.0ghz I really hate to tell you, which you probably know now from your heat mangled CPU, that it will just not happen on air, and thats that. don't try for that. i got 4.8 ghz just straight up using offset voltage, and didnt have to touch anything, except for the digi-vrm settings, which were pretty straight forward. LLC is at %50 for 4.8ghz to have them tell you to set it to extreme, they are just telling you to keep full power load on the VRMs which does nothing beneficial to you, in fact, its just senselessly overheating components on your mobo for nothing.