FrostyTech posted a review on the Scythe Shogun Low Noise Heatsink

As quiet as the Scythe Shogun is, the heatsink is cursed by a set of mounting mechanisms that are complicated and unwieldy to install. The Scythe Shogun weighs in a hefty 790 grams, and stands to a towering height of 147mm above the CPU. The heatsinks' 120x120mm hypro-bearing fan spins at between 700RPM-1600RPM, while producing at most 45.9 dBA in our real world tests. Socket 775/478 Intel Pentium 4 and socket 754/940/939 AMD Athlon64 processors are supported by this model. It does not AMD's socket AM2 processors, however.

Scythe Shogun Low Noise Heatsink Review