Design and Functionality
First of all, we must note that the SilverStone Heligon HE02 is a very large CPU heatsink. It is 170 mm wide, 130 mm thick and 160 mm tall. This giant of a cooler is intricately shaped:
Despite the immense dimensions, the heatsink weighs only 990 grams according to its specs (and 971 grams according to our digital scales). That’s not much as today’s CPU coolers go. We’ve seen heavier ones.
The heatsink is based on six copper heat pipes, 6 millimeters in diameter. The pipes carry aluminum fins that are 0.5 mm thick and 3.5 mm apart from each other.
The increased spacing between the fins can be seen in every fanless cooler as it contributes to more efficient heat transfer by means of natural convection.
That’s also the reason why the heatsink fins are shaped so unusually, arousing associations with SpongeBob SquarePants.
We should also take note of how the pipes go through the fins. SilverStone engineers decided to put the hottest pipes as far apart as possible to improve the cooler’s performance.
To improve it even further, the pipes are soldered to the fins as well as to the base:
The nickel-plated copper base is at least 2 mm thick beneath the pipes.
The 42x38mm contact spot doesn’t seem to be finished perfectly, but it is ideally smooth to the touch.
As opposed to Thermalright heatsinks, our sample of the SilverStone Heligon HE02 has a concave base.
We were pleased with the thermal grease imprint this cooler left on our LGA2011 CPU that has a convex heat-spreader. We had never seen such a perfect picture before:
Hopefully, this means perfect passive cooling, too. Let’s check this out.