These are not repurposed laptop parts being used in desktop systems; these are desktop parts because they fit in an AM4 socket, laptop parts don't. The CPU part

These are not repurposed laptop parts being used in desktop systems; these are desktop parts because they fit in an AM4 socket, laptop parts don't. The CPU parts (CCX, IO) are the same, but that is the commonality with laptops, Threadrippers and Epic server parts too.