Problem solved. For some weird reason it wouldn't enter bios with the vga cable plugged in. Started up the PC with monitor disconnected and then connected it afterwards and it let me in.
Sorry to bother you
But I am actually having the same problem (can't access the bios on new build)
I was just wondering how you did this?
Did you power up and then as soon as the LED came on did you plug the VGA cable into the computer, or did you wait a bit