1. For older models :
When the BIOS posting, please press "Tab" key and you can see the BIOS version information on the top of the screen.
Example "GA-7VM400A F3 GM"
It means the model name of the motherboard is "GA-7VM400A" and BIOS version is "F3".
2. For newer models :
Press "Del" key and entry the BIOS setting while system post and press "F9" to get further information.