I personally liked the Microcool chipsinks. Before getting these I had always cut up VGA ramsinks to cool various spots on my boards. As I said earlier, I think people tend to overlook little things when stressing their system. There is alot more to a good O/C and a healthy system than just a good cooling solution for your CPU, RAM, and GPU. These, while stressed, tend to put stress on other, smaller components that even some enthusiasts tend to overlook.
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