undervolting r7 5800x on msi mobo

[D1craig]

so im trying to help my cousin with this and all we are trying to do is have an offset like i have on my r7 3700x which reduces my cpu vcore and still alows my cpu to boost upto its max.

so for reference i have my offset set to -0.125 and my cpu still behaves like it was before i set that just it has lowers temps.
when i try this for my cousin it stops his cpu from boosting completely and all tests max his cpu out at 3800mhz. nothing else is getting changed.

 

[D1craig]

Ok thanx for the help. I told him to just leave it as is, it's hard to guide someone through this stuff who is only just starting to get into computers over discord.