How to enter bios on a biostar a770e3

The post screen gives you info about the motherboard, memory, and cpu, or the manufacturer of the board, such as biostar. This screen may prompt you to press an "f" key instead to enter the bios. You will also see a bios file number at the top of the screen. This is important if you flash the bios, but don't do it unless your board won't run with a new cpu. Dead boards occur from bad flashes.