I have the matrexx 70, and it comes with 3 rgb fans. I hooked up the fans themselves to the motherboard, and the lights to the psu. How do you change the colour of the lights? They’re currently green/white, and I want a chroma/rainbow colour. Do I have to have a controller to do that? And also, the reason I hooked the lights up to the psu instead of the motherboard was because the cables were too short, and I didn’t have any extension cables.