In my opinion AMD is totally different from intel at this point because AMD make features like PBO-XFR to emulate 2 CCX in 1 CDD .
I suggest you to reset bios just enable XMP, and keep everything default as it.
Then you can go do anything from Ryzen Master Utility, OC RAM It's good from RMU , but oc RYZEN I don't prefer it.
some times there's an a hide option you should enable it but u donno , RMU can do it,