OK lets just confirm that your bios did take shall we.
Your USB stick is a fat formatted USB stick.
When you put the USB in the ROG connect USB port and pressed ROG connect button. How long did the leds on the motherboard flash for? And which LEDs flashed?
Yes it flashed good.
Now we move onto the board itself.
Please confirm that all the PCIe dip switches are in the on postion and that both the 12v EPS CPU power connectors are fitted.
Your VGA power cable is connected and the cable to the PC monitor is fitted.