Textured pin heatsink:
have emerged as Swiftech's next call to fame. Although the thinner pins
on the newer heatsinks tend to work better, this was indeed where it
all started. The idea behind the threaded texturing as we can see it is two fold. The primary goal is to improve surface area, and the secondary goal is probably to create more turbulence in the air. Personally, it just looks like a bunch of screws in a block of aluminum to us :-)
With the good comes the bad, and in the case of the MCX370-0A the bad is the clipping system. Now don't misunderstand me completely, it does work, and properly adjusted it will work very well, it's just that we find it a bit of a pain to use.
Getting this heatsink to sit properly on our thermal test platform in
particular is a nightmare for a couple of reasons, but mainly because there is
no flex in the clips - and given the way our rig is configured this is a
necessity. You can ignore that though, as it really only applies to our
situation. Given a normal motherboard the clips can be locked in relatively
well, but in all honestly I don't see it as the best possible way of locking
down a heatsink.
The main reason for this has to do with where the core of
any silicon-toped processor sits in relation to the entire socket. While the
core may be centered on the processor
itself, it is off-center as far as the entire socket is concerned. This was originally a big issue when heatsinks made the transition from heatspreader bearing Celeron processors to FC-PGA processors with their exposed, and fragile silicon cores. Not forgetting that this processor is called the MCX370-0A you can see where the trouble lies.
The retention mechanism is centered on the heatsink and thus centers the force the
heatsinks exerts. Ideally, the center of the force being exerted by the heatsink should be off-center, and over the location of the processor core. Bottom line is that I've always found this type of retention mechanism a bit of difficult one to set properly, and hence it is not one of my favorites.