There has been intermittent noise (humming, buzzing, chattery humming) coming from my PC.  I opened it, thinking it was one of the HDDs, but it appears to be the processor.  I can see under the fan that the heat sink is very dusty, but I don't know how to get the fan off of the heat sink to clean the heat sink.  The processor is the only part that was to hard for me to lock in place by myself.

Does anyone know if the dust could be causing it, or if I need to look for a new processor?  (This one is only a year and a half old.)    CPU AMD|A64 3200+ 2.0G 939 512K R (Venice).

Thanks,
Ann Fennell

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