PhenomMsrTweaker is a utility to completely customize the Cool & Quiet feature of AMD K10 (Phenom etc.) processors. It may be used to overclock and/or undervolt the CPU. Its primary aim is to allow on-demand use of the powersaving Cool & Quiet feature even when running the CPU above its original speed.
PhenomMsrTweaker allows to fully customize two CPU performance states: multiplicator (per core), Vcore (CPU VID) and integrated Northbridge voltage (NB VID) of P-states 0 (performance) and 1 (powersaving).
Additionally, it provides a customizable replacement for the standard implementation of Cool & Quiet in the Windows driver and allows to control standard or custom Cool & Quiet via on-the-fly power scheme switching.
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