Got the build working. Operating system has been installed. Still looking for an answer to this but I think I might have to contact Asus and Cooler Master support since no one has an answer for me yet which is fine. Thanks for your help, anyway. I tried syncing everything using instructions pieced together from all the places I’ve seen info on it but it still didn’t work.*
I think the best question to ask would be if the Cooler Master ML240R Controller Hub’s 4 pin RGB passthrough is capable of plugging in to the B450-F’s 12v RGB header. If so I can simply buy a second 3 to 1 or 5 to 1 ARGB splitter and then use that to plug the MF120R’s 3 fans into, plus the one I’m planning on buying.
Regardless, it looks pretty on my ryzen 7 3800X.*