The Asus Triton 75 heatsink FrostyTech is reviewing today ships without any fan, but is intended to be used with a 120mm fan of your choice. The 395 gram heatsink is uses four 6mm diameter copper heatpipes to support a 120x120mm aluminum fin array above the CPU socket. This orientation allows the fan to exhaust down towards the CPU and cool adjacent motherboard components. The Triton 75 is compatible with Intel socket 775 Intel Core 2 Duo processors, and all AMD Athlon64/Phenom sockets.
FULL STORY @ FROSTYTECH (http://www.frostytech.com/articleview.cfm?articleID=2242)