Silverstone Heligon HE02 Fanless Passive Heatsink Review
 

The Silverstone Heligon HE02 is being sold as a passive heatsink for sub-95W TDP processors, so today on Frostytech we'll put this big, boxy, silent heatsink through its passive paces. No fans will be used in the testing, just good old noise-less convection cooling. We should note that wire fan clips are supplied for users who wish to add two 120mm fans. Silverstone's Heligon HE02 heatsink is made from a pretty common mix of nickel plated aluminum fins soldered to six 6mm diameter copper heatpipes. The heatpipes are capped off by a chunky nickel plated copper base plate. Noise wise, this is a completely silent passively cooled heatsink, which means you'd better have a case with lots of air vents.

http://www.frostytech.com/articlevie...ID=2700&page=1