Sorry, this is the normal sound that you will hear from a NUC when its processor is very busy. The blower (it's not a fan!) is spinning as fast as it needs to to dissipate the heat being produced.
Thanks for your reply. Sorry for blower, English is not my native language.
Did you compare both of the audio samples provided in the other thread? One sounds like my sample (sort of rattling), the other one is almost silent aside from the air noise...
My NUC is not quiet like a MacBook, but also not such loud like yours. I only got a very slightly humming noise. My unit is unnoticeable from 2m away @ half load. Maybe a lucky buy? =)
Nope, only listened to your sample. It sounds perfectly normal for processor-busy situations.
I will say the same thing I have said to others. If you don't like the sound, change it. Move the NUC farther away from where you sit. Use the VESA mounting plate to attach it to the back of a monitor, the side/bottom of your desk, etc. Put something between you and the NUC. Any of these will make a difference.