My motherboard is Gigabyte B75m-D3H. I accidentally disabled Onboard Graphics in BIOS settings without installing any other GPU (I don't have one). How to re-enable it? No video output is being sent from the PC either from HDMI or VGA. I only hear fan sound when I switch on the pc.
I tried holding the power button for 1 min after disconnecting all the cables. But it was of no use.
I also want to delete my nvram as many duplicate firmwares were created. This is not working for me - https://technet.microsoft.com/en-us/library/cc749510%28v=ws.10%29.aspx