Pleasantly quiet compact CPU cooler from beQuiet is recommended in every way, but only for processors with a lower TDP than 130 watts. I use this CPU cooler isolated on a MSI X99s SLI Plus motherboard with I7-5820K in a Lian Li PC 7 hwx housing - Idle I temperatures of + - 29 ° C go on all 6 cores, but under Prime this within the shortest time up to 75 ° + this I overclocked it to 3.8GHz at just 1,000 Vcore. But nevertheless, want to spoil the no lumps as CPU cooler in your PC case and still great looking cooling performance at a fair price with the be quiet ShadowRock slim well served, just only look how big advance is the power dissipation of the processor) PS: For those who think of overclocking, should rather focus on the really big of Bequiet, also known as Dark Rock (Pro) 3 or directly watercooling.