I just checked my Celeron NUC and the settings are 40, 40, 13. With this I have a temp of 64c, and a fan speed of 6398. On the i3 NUC I have it set at 40, 40, 8. With this setting I get a temp of 54c and a fan speed of 6398... But a dead silent PC (I can barely tell it is even running with my ear next to it).
My noise is a loud enough to where I can hear it over 10' away.