Thanks for the response. Ok here is why I asked and I cant udnerstand anything.
I bought an Akasa FC. Six Fan controller. I had installed it to my previous case 2 days ago without any issues.
Than again 2 days ago I installed it to my brand new Corsair 800D case and my 2 Noctua NFp12 fans did not work with the fan controller (before they used to)
Also i realized that the fan controller lights on top of each 6 controllers were lit, however only 4 fans were connected. The other 2 lights were not supposed to lit.
And when i turned off the fans via the controller, the lights were still lit, although they are supposed to turn off themselves.
For 2 days I dealt with this problem and now i opeend my case again and saw that I mis matched P+ led and P- led. They were in each other's spot. Now i installed them to the correct parts and all my problems with the fan controller were solved.
Coincidence? or is there any logic behind this?
Also now my fans are working much louder when at max. When i had this problem the fan noise was not that high on max fan controller settings telling me that the fan controller was not working optimally.