1. I've NUC8i7HVK, build at 08/2018. It is working very quiet. Actually I can't hear the blower when NUC working in idle. The Cooling settings in BIOS are set to default Balanced mode.
2. I'm attaching image showing blowers speed development during idle, internet browsing and video streaming from YouTube site. The speed varies between 750 and 1200 RPM. Most time about 900 RPM.
my build 10th July 18 and my bios same as Lwaksman with similar readings.
Hwinfo also similar.
Also worth noting that Sryan10 is running an identical setup to me as far as hardware (ssd, ram) and bios and software (win 10 version).
Only difference we could pick apart from build date was a different baseboard version in system info.
First, I recommend that you turn off the Fan Off feature. This can actually cause fan surges. It is better to have fan running at some minimum level all the time.
Secondly, this so-called default configuration is horribly broken as far as I am concerned. The active duty cycle is determined with a y=mx+b type of algorithm, where 'm' is number of degrees above minimum, 'x' is Duty Cycle Increment and 'b' is minimum duty cycle. Does this equation reach 100% duty cycle before the temperature reaches Tjmax? No, it doesn't, so it is broken. Try these settings instead:
Primary = Processor Temperature
Secondary = Motherboard temperature
Hope this helps,
I agree with Scott that the default setting on Cooling tab are "broken" as he says. According to those settings when the CPU will reach temperature of 95 Deg C (40 Deg C delta), the fan RPM will reach only 70% of max RPM. It is better than in such temperatures fan will rotate at 100%. Usually in my other NUCs, I customize those setting. However, in Hades Canyon I did not find any reason to this, since the actual RPM varies between 700 and 1200 RPM (while the temperatures are between 55 and 70 Deg C). With small Duty Cycle Increment the fan noise is not disturbing. The question should be asked why in NUC build in 2018 with those "broken" settings, the NUC is quiet and cool, while the new production NUC is not?
Ok, try the alternate configuration when you have some spare time and let us know.
BTW, the PCH can sustain higher temperatures than the processor, so having it run cooler isn't that big a win. Mine is sitting at 49/50c most of the time and the fans are at 480 RPM while system is idle