i figured out the turbo boost causing the fan in standard tasks to run at maximum speed.
This is not nice and i guess it could be fixed.
Just run the 7zip benchmark and you will experience it.
I disabled turbo boost and the system is quite also with heavy load.
In the BIOS the turbo boost can be customized and i am a bit confused now.
I read PL1 and PL2 should be W values but in the Bios it says mode time in seconds
So could i set PL2 (burst) to 10 seconds does it mean the burst will only 10 seconds active and then switch to PL1?
How about the Tau values and impact to turbo boost?
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i run BIOS default settings except:
Power, Processor and FAN: balanced
I tried several fan profiles and also custom one but its always the same.
custom: 75/20/4 # 60/20/5
I also did 2 times load default BIOS settings.
I attached an video of the turbo boost behaviour for 7zip benchmark as its quite easy to produce
But in general its alwasy the same when the tb is running a few seconds.
you have to turn up volume to the max for your mediaplayer and speakers to hear the fan noise beginning at 30 seconds approx.
Hi @svenry ,
In my opinion there is a problem with the implementation of the RPM/cooling algorithm in some NUC models, when Turbo Boost is ON. Similar fan throttling I can observe on NUC7i7DNHE. Nothing helped to keep the fan not throttling, except switching the Turbo Boost OFF. I don't feel strong degradation in performance and I have quiet NUC.
@LeonWaksman hey Leon,
yea i read about it but i guess not all are affected?
if yes, everyone would complain about this very annoying behaviour.
Well with disabled tubo boost it feels not much slower but it is in some areas....
I am sure the issue could be fixed.
Thank you for your response and the information provided.
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Intel Technical Support Technician
from my point of view something is wrong / broken and not normal.
I`ve reinstalled Windows as the P-States are triggered by OS and i want to see if my Windows has an issue.
Even during the installation the fan was running at maximium after a few seconds, not all the time but quite often.
My first impression after watching your video and running the same type of test on an equivalent system is that the behavior is normal.
I had the exact same result when running the "benchmark" tool available within 7-Zip* and of course, it triggers a higher CPU utilization and a substantial increase in temperature which causes the fan RPMS to increase.
Are you also seeing this issue when running any other regular application at an average processor utilization?
yes, everytime the tubo boost is used the fan will run after a few seconds at maximim.
Even the CPU utilization doesnt matter if its 20%, 50% or 90%
Some examples and maybe you could also test?
-windows autostart (Chrome, Free Commander and JDownloader)
-jDownloader (extract 10GB video file)
-lame or ffmpeg task for few minutes (cpu utilization aprox 30%)
-chrome (some websites)
With TURBO BOOST DISABLED all this issues are gone.
So from my point of view something is faulty or bad configuration inside.
If it appears during encoding for a long time it might be okay but not during standard short tasks.