Hello LEY3,
Thanks for your response.
Please use the 5V,3 pin (ADD_GEN 2)header of your mother board.
You can have a try to connect the RGB controller to the mother board and control the fans RGB by the software of your motherboard, if they are compatible, you can turn off the fans rgb by software.If not, please connect the fans LED strip directly to the motherboard and then turn off the rgb by software.