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Undervolting my CPU was one of the best system "upgrades" I've ever made

Undervolting makes your CPU use less power, which also reduces operating temperatures significantly. Furthermore, this ...
Ars Technica

Undervolting AMD HSF for lower noise?

Is it possible to undervolt the AMD stock HSF fan (s939 A64/Opteron HSF) in order to lower the noise produced by it and if so, how? I am using an AsRock 939Dual-SATA2 motherboard which doesnt support ...