[SOLVED] How to undervolt AMD Ryzen 7 4800H?

[mramir24]

Hi all! I wanted to ask if anyone knew a good way (besides BIOS) to undervolt a Ryzen 7 4800H. I am undervolting for the sake of battery life, as it is on a laptop. More specifically, the laptop is a HP Omen 15-en0xxx. Any and all help would be greatly appreciated! Thank you in advance.

 

[haseeb98ahm]

Not sure about ryzen 4000x but on ryzen 5000x you can set PBO 2.0 to "negative" values which lower the power draw and increases the frequency/speed. yes more performance with lower voltage.

 

[PierinoTH]

All of us tryed unsuccesfully to undervolt, or underclocking cpu , specially for laptop for solve freeze , or blue death screen . Unsuccesfully ? right ? all of us tryed to clean cpu and gpu fun and apply newer thermal paste, with only 5°C less and nothing solved. Probably we did it not so well, but, i'm sure 9 / 10 of us not succesfully.
I tryed another solution , and it worked.
Windows, Control Panel , Energy Option , Modify energy combination ( before the best with energy connected, after the battery) , change advanced , Cpu energy saving, then , change maximum CPU level, try 50% first. if you launch app like speecy or hw monitor, you will see temperature will be under 70°. Unfortunaly you will have a pc with half performance , BUT WORKING . Not to put into waste.
I Hope i helped better then other solutions .