swapping the processor

Hi, i've used your setup on aZ370M D3H at first with a i3 processor. It worked fine so i swapped the processor for an i9 but then ran into some ussues. The cpu was utilised only half. When i looked into the bios it didn's list the processor, only previous models. So i'm trying to figure out what's wrong. Did you make the SSDT-PLUG manual or did you use the prebuilt?