unfortunately, no, I don't remember the exact number, it was from somewhere the beginning of 2016 build. The mode was not selectable (the list options only showed "M1" and "M2"), but in the Description a silent mode "M3" was noted.
Is there any way to do it via software? it's really annoying when you watch videos, and to make it even worse, when I hibernate the stick, the sound driver is broken after awaking (an other bug), so the only option is to shutdown it to get it silent which is more than cumbersome.
This message was posted on behalf of Intel Corporation
Unfortunately, there is no option to disable or set the fan to low performance in fact the fan noise is expected, the fan noise is normal and the high frequency noise happens when the CPU utilization increases is generated due to the small blade size. One of our Intel® Compute Stick engineers confirmed that this fan noise is expected, see here Intel compute Stick Stk1aw32sc weird Fan Noise post #6.
I apologize for any inconvenience.