Hi, ive just bought = Antec NX410 White Case with 3xRgb fans, and i just plugged the 4-pin molex onto the end of them and they work fine but are spinning at full speed. Can someone please tell me how i can set them to slow spin mode maybe via my mobo, i was hoping, let me know, thanks. PC Specs = i5-11400f, 1x16GB 3200 fury, ASUS PRIME B560M-A mobo, Crucial P2 1tb NVMe, Integrator 600w, gtx 960 lol