Let me check for any other information available on this and get back to you.
Have you been able to find any information on how this is supposed to work? What happens e.g. if I set the duty cycle = 0?
My BIOS looks like Kent_M's.
My fan speed is just over 4000 RPM which is at the top of the graph. However it is quite. How can I slow it down?
My processor temp is under 60C. What is optimum? TIA
I would also like to know the answer to this question, as I have updated to the latest BIOS version (0022) and also do not see any options to select fan profiles. I also cannot find any documentation on the Intel website about setting fan speeds in the BIOS for the latest gen NUC devices. The link Diego has provided is out of date and only refers to the old last-gen NUC models.
Guys, this issue has been escalated to the engineering team in order to find the cause of it. Once I get a resolution, I will let you know.
I'm working with engineering to get updated information for the new NUCs and will update the Cooling and Fan Control document as soon as I get it.
I'm also having this problem. My fan is spinning at 4000 rpm when idle.
I also have issues with cooling management on NUC DC3217BY.
Using the F2 BIOS option, I observed that the NUC CPU temp kept increasing.
The FAN would follow the configuration when stuck in BIOS F2 mode.
However, after pressing F10 and booting Debian Linux via Grub MBR, the FAN was OFF.
Relatively little air coming out of the vent, and no noises at all.
Temperature rises, and if I shutdown -r my NUC and went back to F2 BIOS mode, then fan will run at 5500 rpm, and observed CPU temp exceeds 70.
This is not good - also have intel mSATA SSD drive, and intel wifi network card for network access.
Other articles indicate that the wireless card also gets hot, and the "fix" is to get the fan to be more active, and to cool more, by running fan faster. But - fan doesn't seem torun outside of BIOS mode.
Trying the FLASH BIOS upgrade, and I will report back.
ok, good news, I updated my BIOS ( my nuc says it was built in Jan 2013 ) to the newest BIOS release dated JAn 2014. Now after booting into my OS, I can hear the fan running when I put my ear next to the chassis.
Time will tell, and my fingers are crossed, but I think this BIOS flash update may have this trouble licked.
Kevin, thanks a lot for sharing this information with us.