Question How can i lower CPU Boost Clock on Ryzen (PBO) ?

[kenj1ng]

I have Ryzen 5 5600 ( Base Clock 3.5GHz | Boost Clock 4.4GHz )
The difference between Base Clock and Boost Clock is too great, almost 1Ghz, and I want something in between like 3.7 or 3.9Ghz.
on ASUS mobos there's a "CPU Core Ratio" setting.

can someone explain how can i do that on Asrock ?
I think i should set the CPU Boost Clock Override to Negative?

https://imgur.com/a/ZbPMgMd

edit:
I'm not talking about Undervolting, (because it's still maintaining that high frequency ), I wan't what UV does but also lower speed.
Basically Power Limiting

 

[NanoSuit3]

I don't know how to work with AsRock Mobos but why not just setup RyzenMaster and set it to that Core Ratio? https://www.amd.com/en/support/down...ryzen/ryzen-5000-series/amd-ryzen-5-5600.html

 

[NightHawkRMX]

Simply set a pbo wattage limit to achieve this

 

[kenj1ng]

I've enabled ECO mode 45w. it changes the PPT TDC EDC value

https://imgur.com/a/rE0AXhq

it does reduce the power usage (sometimes goes up to 50w)

but the core frequency is fluctuating between cores
some core are at 4.4ghz and some at 3.6ghz