Model B450M PRO VDH MAX
Model B450M PRO VDH MAX
The page doesn't mention F31 or F40, only shows codes like 7A38vB0. It's unclear which one is correct. Consider getting the newest model if you're unsure.
It seems the post isn't going to appear and the CPU indicator light is active.
I discovered this instance from a board I previously owned in my system. (A gigabyte one)