The Wraith Prism CPU cooler has ARGB lighting built into it. BUT it is possible for such a system to work with the less-complex plain RGB lighting signals IF they are handled correctly, so the Wraith Prism unit HAS been designed to accept EITHER type of lighting controls, but NOT both at the same time.
The unit has TWO sockets on its side. One of those accepts a cable (supplied) that goes to a FOUR-pin plain RGB mobo header. Your mobo's LED_CPU header is one of that type, so you can use it. If you connect that way, do NOT connect the other cable to the USB socket. Then you use the Gigabyte RGB Fusion software utility to control the lights.
The plain RGB system can generate loads of colours and change them over time. But at any one...