It is overvolting slightly with the LLC set to extreme. I never said that the wraith is providing "adequate" cooling for this overclocked chip. It is the best of the oem coolers that I've seen, and is currently cooling the "e" chip in my benching station, which I use to do preliminary testing on my chips. Now that I've tested the 8370e and two 8370's, the 8370e will be moved to my main rig to be cooled by my Phanteks PH-TC12DX 120mm. The best 8370 will be moved to the benching station and be cooled by the wraith, to be used as my backup computer.
You said in the other thread that the Wraith kept the 5.1GHz overclock at 55C under CPU stress test. I'd say that's a lot more than just adequate cooling.