I am running the ASUS ROG Crosshair X670E Extreme with a Ryzen 7950X and I would like to disable hyperthreading in BIOS. I have searched for hours but I can't find any option to disable HT ? I can't believe that there is not such option. Any suggestions ?
I'm not 100% on exactly which option would do it, but try under AMD CBS. See section 6.13 / page 49 of E20466_ROG_CROSSHAIR_X670E_Series_BIOS_manual_EM_WEB.pdf. I think it's SMT that you're looking for, which AMD call "simultaneous multithreading"; their equivalent of hyperthreading (Intel HT). I believe ASUS are incorrect to call it "symmetric multithreading" in the manual, as that doesn't seem to be how AMD describe SMT. It may also be controllable in Ryzen Master.
I'm not 100% on exactly which option would do it, but try under AMD CBS. See section 6.13 / page 49 of E20466_ROG_CROSSHAIR_X670E_Series_BIOS_manual_EM_WEB.pdf. I think it's SMT that you're looking for, which AMD call "simultaneous multithreading"; their equivalent of hyperthreading (Intel HT). I believe ASUS are incorrect to call it "symmetric multithreading" in the manual, as that doesn't seem to be how AMD describe SMT. It may also be controllable in Ryzen Master.
