I hope that someone here can help with my problem.
The sound of the fan is very present, although the computer is not doing anything.
It is just like a heart rate monitor. "High RPM then little bit slow, then High again" the full time that the system is on.
What is the best thing what I can do , to keep it quiet ?
What's happening here is the result of a number of issues:
Ok, what can you do about this?
First of all, a significant contributor to the impact of the blower speed changes is the pitch of the noise. Changing this pitch will make a significant difference in the impact of these changes. How do you do this? One way is to simply move the NUC to someplace that is not in direct "line of sight" (for lack of a better phrase) to your ears. This could be something as simple as placing something - a pile of books, for example - between the NUC and you. Better yet, using the provided VESA mounting plate, attach the NUC to the back of your monitor or to the side, back or bottom of your desk.
Yea, I know, you bought the NUC so that it could sit right there on your desk yet not consume the amount of space that older desktop designs did. There are three types of changes that you will also want to consider:
Ok, now you are saying 'OMG, this isn't easy!' Yes, this is true. You will have to play with the settings and take the system through various work scenarios to see what the impact of the changes are.
Hope this helps,
1. I'm attaching an image of cooling setting for your NUC. This settings follows the rules of Scott's explanation in his post above. It will help to understand this explanation. As you can see on this image the Fan off capability is disabled. Setting your NUC to this setting will make it more quiet and still the CPU temperature will not exceed 90 deg C under load.
2. You should also have your bios be updated. The latest bios version is 0056: https://downloadcenter.intel.com/download/28261/BIOS-Update-DNKBLi7v-86A-?product=130392 Download BIOS Update [DNKBLi7v.86A]
Thanks for the addition of scotts his explanation.
I appreciate your image, I have applied the settings directly. The noise is gone for now
I also updated the nuc to the latest bios version this evening with the BIO images.