I'm waiting to see if these E8600's start to degrade from higher voltage before I even attempt something like 4.5GHz. Yesterday I hit 4.33GHz at 1.36V but I didn't stress test it. Meanwhile, I'll keep running at 4.00GHz for daily use until you guys' chips explode! Then I can see how much voltage to pump through my new baby while staying safe.

PS: This one's a week 20. Q820A670.