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3700X and Noctua NH-D15 temps

Soldato
Joined
9 Jun 2006
Posts
2,642
Hi,

As of yesterday, I switched from Intel to an AMD 3700X. I have read that idle temperatures can seem high due to CPU voltage being automatically boosted to give the CPU a clock of around 4.1/4.2 GHz.

I want to get an understanding of whether the temps achieved with my cooler are expected. I had some issues securing the cooler the first time, where one side lifted off a few times away from the thermal paste in my attempts to screw it in to the spring, which may have created some issues with the applied TIM.

At idle, hwinfo reports something between 35-45c (fluctuates a lot) and Ryzen Master reports around 35c.
XexJVAX.png


Stress testing with CPU-Z, hwinfo and Ryzen Master report 71.3c.
e3rB3LO.png
 
Hi,

As of yesterday, I switched from Intel to an AMD 3700X. I have read that idle temperatures can seem high due to CPU voltage being automatically boosted to give the CPU a clock of around 4.1/4.2 GHz.

I want to get an understanding of whether the temps achieved with my cooler are expected. I had some issues securing the cooler the first time, where one side lifted off a few times away from the thermal paste in my attempts to screw it in to the spring, which may have created some issues with the applied TIM.

At idle, hwinfo reports something between 35-45c (fluctuates a lot) and Ryzen Master reports around 35c.
XexJVAX.png


Stress testing with CPU-Z, hwinfo and Ryzen Master report 71.3c.
e3rB3LO.png

Temps are fine
 
Hi,

As of yesterday, I switched from Intel to an AMD 3700X. I have read that idle temperatures can seem high due to CPU voltage being automatically boosted to give the CPU a clock of around 4.1/4.2 GHz.

I want to get an understanding of whether the temps achieved with my cooler are expected. I had some issues securing the cooler the first time, where one side lifted off a few times away from the thermal paste in my attempts to screw it in to the spring, which may have created some issues with the applied TIM.

At idle, hwinfo reports something between 35-45c (fluctuates a lot) and Ryzen Master reports around 35c.
XexJVAX.png


Stress testing with CPU-Z, hwinfo and Ryzen Master report 71.3c.
e3rB3LO.png

Those temperature are perfectly normal and expected and similar to what i see using the stock cooler.
 
Hmm shouldn't I be getting lower temps compared to the stock cooler? I am using the Noctua NH-D15 which is a lot bigger!
The difference will come under heavy load where the bigger cooler will give you the advantage in temperatures. Even AIOs will get similar idle temps, but it's under load where temperature is more important.
 
Hmm shouldn't I be getting lower temps compared to the stock cooler? I am using the Noctua NH-D15 which is a lot bigger!

Due to the 7nm process, heat intensity is greater.

So your temps are fine given the context. Cooling can't effectively remove heat as fast as it's generated in smaller dies. Also the sporadic burst high temps you must also place in context and not think them to be ineffective cooling and or an issue. At low to medium loads it would seem the NH-D15 isn't much better than the Wraith Prism, as you move into higher/sustained loads you should see a difference.
 
I get similar temps on my 3800x which has a 240 aio. It doesn’t go above 70c in stress testing but games around 60-65 and idles around 40.
It seems able to go high very quickly but seems to reach a ceiling also.
 
I originally had a R5 3600, same cooling used for R7 3700X was similar, then I moved to a R9 3900X and again seemed similar. Context CPUs stock and which did respond to Precision Boost Overdrive. The smallness of the die just makes it differing to previous gens.
 
I have a follow up question.

I’m thinking of setting a small undervolt offset to reduce the temps a little bit.

I have a Gigabyte x570 Aorus Elite. Is it just a case of leaving all the other BIOS settings at the defaults, changing the offset by small amount, then checking things are stable with a stress test? Anything else I should be looking out for?
 
Temperatures are fine.
I'm using the 3600 here, custom loop watercooler, and under such tests, the temperatures aren't impressive, but under normal situations, like gaming, the CPU won't go past mid 40's C.
A bigger and more efficient cooler will allow lower noise during light load, or keep reasonable noise and acceptable temperatures under heavy load. But never be as efficient to say from 70C to 35C.
 
I have a follow up question.

I’m thinking of setting a small undervolt offset to reduce the temps a little bit.

I have a Gigabyte x570 Aorus Elite. Is it just a case of leaving all the other BIOS settings at the defaults, changing the offset by small amount, then checking things are stable with a stress test? Anything else I should be looking out for?
Don't do that, AMD recommend against an undervolt as it just causes problems and reduces performance https://www.reddit.com/r/Amd/comments/ce4gm4/psa_stop_nerfing_your_cpu_by_undervolting_stop/. Temps are fine and they are designed to run this hot, I get up to 78C in Cinebench on my Noctua NH-D15S and 3900X so there is nothing to worry about.
 
Using a Corsair H100i Platinum RGB 240mm on my 3700X, idles around 33/34, and only goes to around 41/42 when gaming.

Id say those temps are fine for stress testing, gaming wont go that high.

Got an NH-D15 on my old 5930K, they're cracking coolers.
 
Last edited:
Ok thanks for the feedback, I’ll leave it as is :)

I’ll just tweak the fan profile settings as I find it a bit annoying that it spins up when I’m not doing that much.
 
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