If you?ve looked at building an AMD Ryzen 7 system you'll find that the processors are pretty easy to find, but good luck finding a motherboard. Most of the AMD motherboards based on the X370 and B350 chipsets are out of stock and back-ordered. It doesn't matter what brand you are looking for as ASUS, ASRock, Biostar, Gigabyte, and MSI are all selling out quickly due to the limited quantities available.