So I recently upgraded from my ryzen 5 2400g to a ryzen 7 1800x. the computer turns on and lights up with both cpus but only displays a image with the old one. ive triede resetting cmos and reseating and it wont work, and my motherboard is a b450 tomahawk which states on the box it supports 1st,2nd and 3rd gen ryzen cpus. any help?