Fair enough then. Next we will see if we can kick in the Backup BIOS instead. The only thing is if it does work it might be a much older version and you will have to do a BIOS update afterwards. I would advise downloading the latest BIOS update for your motherboard first.
You can kick in the Backup BIOS by shutting down the PSU from the wall, then hold down your case power button in and then turn on the power supply button, a few seconds later the board will start, shut off the power supply then.
Then you can turn on the power supply again and power up the board normally and DualBIOS will kick in.