[SOLVED] 100% frequency scaling makes my cpu overheat

[Foufa131]

First of all, sorry for my english, it's my third language.


So, I have a problem. As you can see in the first image , everything is normal ( i am playing sifu ). That's because i am setting the frequency scaling at 99%.

But, as soon as i change the frequency scaling to 100% , this happen :

The CPU speed keeps changing ( from 3.60 up to 4+ ghz ) and so does my CPU temp. In some games like Apex legends the temperature exceeds the 90° mark.

I just want to know if it's normal or no ( i am not talking about the high temp i am asking is it's normal for the cpu speed speed to keep changing like that and therefore the problem comes from my cooler or if the CPU speed should always be stuck ).

In some games the cpu speed keep changing like that even if the frequency scaling is at 99%. I have to change the system power plan and then go back to ADM rayzen custon in order for the cpu temp to decrease and the the cpu speed to be stuck at 3.53hz.

 

[kerberos_20]

if you use 99 percent, CPU will run about 100MHz below its normal clock (3.6GHZ base will run as 3.5GHz)
once you run it at 100%, CPU will enable turbo, you can see your turbo clock at 4GHz on your second picture

more clock = more voltage = more ampers = more heat output

and yes, this is normal, 3700X with 280MM aio (watercooling) can still turbo to 80C

 

[Foufa131]

Thank you for the answer

I still don't understand why in some games this happen even if the frequency scaling is at 99% and why switching to antoher system power plan and going back to custom fix this ?

 

[kerberos_20]

95C is your maximum, if you want to lower it, you will need better cooling, but during load 80C is normal even with best beefy cooler as that IHS (heat spreader) is kinda small to cool it properly

 

[Foufa131]

Thank you again my friend but my question is why sometimes the cpu speed doesn't stay stuck ( i want him stuck to decrease my cpu temp to max 78 ) until i do the maneuver that i stated above ? every time that the cpu speed keep changing up and down my cpu goes crazy so i want him to always be stuck at 3.53 until i get a better cooling system.

 

[kerberos_20]

go to bios and change cTDP, this number will say how much watts is CPU alowed to eat, it wont draw more watts than you setup, idk about your cooling performance, but you could start at 65watts then slowly raising it if temperatures will be fine

 

[kerberos_20]

idk your mainboard, so here example from asrock bios