I have my 6600K running at 4.7GHz at 1.39v. CPU power wattage in the 80s. Max temp is in the mid 60s Cooler used is nothing special- Corsair H80i, fans stayed below 1200rpm.
I've switched the CPU power to adaptive, holding at 1.39v when under 100% load and momentarily peaking to 1.41v.
I've...