Question 3900x clocks does not go to idle but voltage does slightly?

Oct 4, 2019
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My motherboard is Asus strix x570 -f ,
in bios I set vcore to offset with + sign and multiplier to 42 ~ 42.5 ,
set c-state to enable not on auto and memory profile applied ,
I get voltage about 1.26 to 1.3
On the desktop unless I close all the applications that is in the try bar and not lunch any thing voltage will stay at 1.26 and clock at 4200mhz
but if I close all the try apps voltage starts to drop under 1 volt but clock will never drop!, (in my last Intel CPU did it)
in the other scenario when I set everything in bios the same but set the multiplier to auto I start see drops in voltage and in clock speed without closing all the try apps even with some programs loading but idling ! but I don't need this because I manly do multi core work (3d modeling and rendering) so I need all cores to run to the maximum when needed plus I am not so much comfortable with voltage that I see when multiplier on auto.
I use CPU-z as recommended from AMD and I have Ryzen Balanced power plan installed and everything is updated including bios, So is there is something to do to make the clocks go down also on idling like I get with multiplier on auto?
 
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