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Server Gurus Discussions

Adept I

AMD CPU TDP adjustments on Linux

So Ryzen Master on Windows offers the ability to adjust the TDP of the CPU.

What lowlevel interface/hardware feature is used for this?

RyzenAdj offers this functionality on Linux by communicating with the SMU, but I wonder if this is the offical way?

Sadly for RAPL only the energy read-only register is implemented and not the TDP controling one.