FrostyTech posted a review on the Silverstone Argon AR01 Heatsink
A quote from the article:
We're throwing the new 200W Frostytech Mrk.III Intel LGA2011 test platform thermal test platform into the mix today! Silverstone's Argon AR01 is constructed around three beefy 8mm diameter copper heatpipes which are exposed at the base of the cooler. Putting the heatpipes in direct contact with the top of the processor makes for a very thermally efficient path with a minimum of thermal joint resistance.Silverstone Argon AR01 Heatsink Review @ Frostytech.com