I don't know what a PWM fan is but maybe they are incompatible and I am not sure what to look for or how to find one that works. The cable I use to connect to the motherboard is the first one on this message, on the other side its the 4 pin connectors that i sent in my last message.
I did try to calibrate them but nothing happened. I also looked in the manual but I could only see 1 rgb header, the on at the top.
The fourth, fifth and sixth pictures are extra cables, I did not get it so well on the picture but on picture four the left cable has a 2 pin connector or 2 holes atleast on the other side. The fifth picture I have no idea what that cable is used for.
The thing is too that the header on the motherboard is a 4 pin and the cable I got that could connect there has 4 pin on the other side but the fans only have 3 pin. They spin fine because that is through another cable.
so fan power wise your fine using 3pin dc fans on the 4 pin(PWM pulse width modulated speed) fan power header.
pic 4,5 look like fan wire extension cables, cable in pic1 connects to mobo rgb header.
the other end should connect to your fan rgb which can daisy chain.
the motherboard has only 1 dRGB 12Vheader.
12V/redd/green/blue pinouts.
3wire rgb on fans sound like arGB (addressable rgb)and not only are not compatible but im surprised they did work at all, im thinking you cant get it working properly with what you have unfortunately, I downloaded your manual so i looked thoroughly.
I had this issue with raintec fans.