AmdMsrTweaker is a free, open-source command-line utility for Windows designed to reprogram the P-States (performance states) of various AMD CPUs and APUs. It is primarily used by enthusiasts to customize the "Cool&Quiet" power-saving technology, allowing for precise undervolting or overclocking to improve system stability or thermal performance. Essay: The Role and Utility of AmdMsrTweaker Introduction
Modern 64-bit drivers are harder to spoof and offer better system integrity. amdmsr tweaker v11 64 bit free
The tool follows a specific syntax for modifying values (refer to the AmdMsrTweaker README for a full list of commands): View Information AmdMsrTweaker.exe without parameters to see current state info. Modify Multiplier/Voltage AmdMsrTweaker P0=12.5@1.4 The tool follows a specific syntax for modifying
Changes revert immediately after writing. Fix: Another process (e.g., AMD Ryzen Master, MSI Afterburner) is overwriting the MSR. Close all other tuning software. Close all other tuning software
: Run the executable as an administrator. You must input specific codes for the P-States and voltages you wish to modify.
AMDMsrTweaker v1.1 is a specialized command-line utility for Windows designed to reprogram the performance states (P-States) of AMD CPUs and APUs. Originally released in 2011 with its last major update (v1.1) in 2013, it was primarily built to support older architectures like Trinity, Richland, and Piledriver.