Ryzen 9 6900HX Legion 7 cpu undervolt

Hello,

I am trying to find a way to undervolt my ryzen mobile cpu outside of bios to prevent any bios corruption or issues that will result in a need for a bios reflash.


Things to know:
  • BIOS doesnt have a setting for it.
  • Undervolt is possible. Windows has programs for it and I have succesfully used those.
Attempted procedure:
  • Using core offset in ryzenadj. Only positive core offset values are accepted, results in overvoltin, not undervolting.
Things I should try but are too risky:
  • smokeless_UEFI custom bios to unlock hidden bios settings. Dont want to do that since I do not have a way to reflash the bios if it breaks. No documentation if undervolting through this way bricks the bios therefore I will not attempt it.
Thank You :)
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