Spire Fourier IV SP607B3C Heatsink Review @ FrostyTech
 

*Review: FrostyTech (http://www.frostytech.com/articlevie...ticleID=2166)*
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The rule of thumb for CPU heatsinks is that you can never tell how a cooler will perform just by looking at it. The Spire Fourier IV SP607B3-C is one of those heatsinks where that saying really rings true. It's a hefty Intel/AMD heatsink made entirely out of copper, it has four heatpipes and a fan that spins at 3500RPM.

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