AMD announced that the newest Ryzen 3000 series processors can run on specific older AM4 motherboards with nothing but a BIOS update. That means if you have one of these motherboards, you'll be able to buy a new Ryzen 3, 5, 7, or 9 3000 processor and install it without needing a new motherboard. Here's how to check if you have the right motherboard and how to update the BIOS.