Undervolt i9-10850/10900

[Petrolhead]

I have an Asus z490 rog strix mobo

i have heard that the voltages can be aggressive and been suggested to undervolt

the main reason is to keep temps down

how do i go about doing this please

 

[Petrolhead]

whats a good value to start with

 

[Petrolhead]

I found this vid https://www.youtube.com/results?search_query=how+to+undervolt

so had a play, i used Cinebench for the stress test. Managed to get the volt down from 1.34 to 1.25 with a 48 multiplier. CPU temp dropped from 70 to 58