How to limit TDP on B650M Pro RS

Sgunn wrote: Hi! Can someone give me a quick guide on how to limit the TDP on the B650M Pro Rs to 105W in the BIOS? I have a 7950x, and have read various threads for different motherboards on how to do this, but specific settings for this motherboard would be much appreciated. Also, I've read some discussions about undervolting. If that's also reasonable to do as well without impacting performance, some guidance on that as well would be appreciated. From everything I've read, limiting it to 105W dramatically lowers the amount of heat the processor puts out with pretty minor decreases in performance. Any other suggestions on BIOS settings to change from default would be welcome. Thanks, Stephen

one way is to set it using the 'OC Tweaker' preset.

the other way is to enter the (AFAIR) Advanced-AMD Overclocking-PBO, set PBO to advanced and there appears the field with [mW] units, so setting 105000 is 105 watt limit.

Sure you should undervolt those CPUs - they run cooler and boost the clocks higher with lower power consumption.

You do this by simply setting the undervolt (like -15 ) and stability testing in the OS. If you do this for all cores than you can even do this per core for ultimate chip optimization.

For stability testing i recommend Aida64, because it was the fastest to give desirable results (crash if you undervolted too much!).

Below is written how to set up per core undervolt. Its supraisingly quick and easy to do, because it was enough to run Aida64 for ~3 minutes to check the stability.

no problem.

You set the undervolt in the 'Curve Optimizer' menu in the said PBO section.

Motherboard is on bios version 2.10, and temps were reported by Ryzen Master under Windows 11.