No, but for some processor just like the Zalman 9500 that thing is huge. For that type of heatsink/fan you have to make sure your mother board can hold it. Not just the sockets. What heatsink/fan are you looking in to?
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K8 is the current-gen and next-gen AMD Athlon, FX, X2 and Opteron processors. If your heatsink says that it's "K8 Compatible", then it should work if you use an AMD thats Socket 754, Socket 939, and Socket 940.