Had before the unbearable sounds boxed cooler turned on my FX8120 of up to 4900+ RPM! The Katana 4 turns with me until about 2800 RPM making in much quieter. He is again quieter due to its bigger fan. He is also quieter again due to the good quality of the fan. The result is impressive: At last I'm going this noise of Boxed cooler!
The cooling performance has also improved also. After about 10min endurance test with Prime95 I reached a temperature of 60 ° These are about 10 ° less as before. in idle mode, I ca 20 ° and 31 ° in desktop mode. This is much much better than the boxed cooler and at inaudible volume. Bundled Coolers: Idle 28 ° Desktop 40-45 °.
Average temperature reduction: 10 ° -11 °
Installed in Cooler Master HAF XM case with 200mm front fan 1x 200mm fan 1x 140mm Top Top Fan 1x Corsair 140mm system fan.
The installation was very easy and went without problems but you should use only half the thermal compound is and the other half to keep if you for example want to change the motherboard.