Core i7 3770K OC at 4600 MHz 1.3 Volts

Now we up the ante. Understand that 1.3+ Volts is the level where Ivy Bridge processors get into problems due to the aforementioned heat-spreader versus TIM design solution applied by Intel.

We now set the Core i7 3770K @ 4600 MHz and apply 1.3 volts to the CPU while loading it with 100% stress for a full Prime95 run on all available CPU threads.

Core i7 3770K OC at 4600 MHz 1.3 Volts - IDLE 

Okay, here are the IDLE results with the Core i7 3770K @ 4600 MHz with 1.3 Volts on the CPU. Again, the results are the IDLE temperatures thus you are in your desktop doing nothing. 

Core i7 3770K OC at 4600 MHz 1.3 Volts LOAD

Now we'll be testing the temperatures under stress. If we set the overclock at 4600 MHz and configure CPU Voltage at 1.3V, these will be the results.  

The temps rise above and beyond 90 Degrees C for a handful of coolers, which is a definitive no-no. As you can see we have dangerous temperatures for most coolers. Enthusiast class coolers do better here, with the Noctua NH-D14 however it remains possible. We are quite surprised that this cooler seems to behave so much better compared to the others. The next in line is the Alpenfohn K2, Scythe Grand Kama followed closely by the Coolink Corator DS.

These are serious temperatures alright.