I have a Rocket Cooler Pro by Gigabyte for my processor (AMD Athlon 64 3000+ socket 939) and it isn't the greatest cooling device. My question is why. When I looked at some sites, there was one place that achieved an overclock up to 2.6 GHz with a Silent Boost K8. I figured since the rocket cooler is bigger and runs faster, it would cool it better, but in all actuality, if I tried to achieve that overclock with it on there, I can't barely touch 2.2 GHz without it overheating. I ordered the Silent Boost and plan on using that instead to see, but does anybody have any ideas why the Rocket Cooler isn't working good? Is it just because it isn't necessarily made for 64 bit processors or socket 939s or something?