Hedgehog 238-M cooler review

When it comes to heatsinks, a minor change in a design can mean a couple degree differences in performance. The Hedgehog heatsink steps in with a major change in design.

Rather than using the standard aluminum alloy, they opted to try something different, all copper. The question goes through a lot of people’s minds. Is copper better than aluminum? The answer to that is both, yes and no. Copper is the immediate superior material for heat conduction compared to aluminum from other metal surfaces, but its heat transfer to air is not as good as aluminum. That is why you will see a copper base surrounded by aluminum fins for some of the newer Alpha heatsinks.

The all copper Hedgehog heatsink does have a weapon to combat the slow metal to air transfer by placing larger, louder and powerful fan on top of them. Not all Hedgehog heatsink models have the larger fan though. The 238-M model comes with a Y.S. Tech 60x60x25mm 5400-RPM fan. The 238-S comes with a 60x60x10.3mm 4200-RPM fan. The 238-M is the best choice for this type of metal heatsink.


The Hedgehog  238-M is designed for both Socket 370 and Socket A CPUs. I did notice that the heatsink did not come completely flat on the base. With some 600 and 1000 grit sandpaper I got the base to a mirror like shine. Putting together the cooler was very similar to that of the Alpha. The recommended placement of the fan is to have it so the air is blowing away from the CPU. On tests done with the Alpha, I have found that air blowing away from a socket type CPU does help to decrease the temp of the CPU. If you do plan on having the fan facing towards the CPU, then it is recommended that the shroud be taken off.

The test system I used was a Pentium III 650 on an MSI i815E Pro motherboard and the same Pentium III 650 on an Asus P3V4X with an IWill Slocket II. I had no problems installing the unit on the MSI motherboard. When it came to the Asus board and the IWill Slocket, I had a little trouble getting the clip so that it wasn't pushing against a couple capacitors. With a little adjustment I was able to overcome this trouble.



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