I removed the CoolerMaster fans and I put two Noctua NF A14 PWN and I thought there was a problem, that my overclocking was disabled.
I lower temperatures than before, 67 ° C in full load against 71 ° c before! Despite the aggressive overclocking and fans are almost inaudible! They spin at 1200 rev / min, even not fully ...
These fans are cheap, I mistakenly thought that the result would be a little better and in the end the noise was divided by 5! To buy the closed eyes, the price is justified.