It is my desktop PC‘s motherboard. Gigabyte B450M DS3H. This post focus on its BIOS.
The original BIOS version shipped with the MB is F4. From my old post, you can see it.
Before I upgrade it today, it is already F42.
I can not remember when I upgraded it. So just forget it. I am going to show you how I upgrade the BIOS from F42b to F50.