AmdMsrTweaker is a legacy command-line utility for Windows designed to reprogram the P-States (Power States) of older AMD CPUs and APUs, such as the Bulldozer, Piledriver, Trinity, and Richland series. It is primarily used to prevent thermal throttling on motherboards with weak voltage regulation modules (VRMs) or to customize overclocking and power-saving behaviors. Download and Source
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Version 11 (V11) is particularly sought after because it introduced improved compatibility with newer CPU architectures and a more user-friendly interface for monitoring CPU behavior.
AmdMsrTweaker is a lightweight, command-line utility for Windows designed to reprogram the P-States (power states) of various AMD CPUs and APUs. The tool was primarily developed to customize the Cool&Quiet power-saving technology, allowing users to undervolt or overclock their systems on demand. History and Version v1.1