They are 3-pin fans so I have connected correctly just like the Fractal ones.
It appears to me that they do not seem to get enough power to get them started. They just "jiggle" back and forth and eventually will start (my guess is it to do with cpu temp).
Once they start spinning AI suite app shows them spinning at ~580rpm and switching between silent-standard-full works fine.
Bios is at defaults.
Update:
I just did another test,
Fan settings on BIOS are set as:
-DC mode
-Min speed 400rpm
-Sensor: CPU
once at Windows login screen all three fans were just "jiggling" back and forth then once logged in to Windows and opened browser, one of the front fans started spinning properly then after awhile the other from fan was fine...the rear one I had to use AI suite to get it going.