I did not remove or disconnect anything. It was an in place upgrade. Should have taken 3 minutes.
I disconnected power, jumpered the clear CMOS for two minutes and powered on. The system power cycled four times and then a whole minute passed and I was ready to shut it off when I saw the BIOS logo and a screen full of information appear on the on board graphics output on a temporary HDMI display. I wish there were no on board graphics. This thing cost me six hours last January thinking I had a bricked motherboard because the defaults got reset and disabled my GPU. If I didn't have an HDMI display to try, I'd have RMA'd the board.
So now I have this BIOS screen and a line says "The VGA card is not supported by the UEFI driver."
I tried disabling on board graphics but I get no display on either output now, so something else is wrong. I lost all my BIOS configuration, which took many days of configuring and testing last January, so I don't know if some other setting is depending on this to make the GPU supported.
Very odd: Under Too\Graphics Card Info\GPU Post, it's not showing any graphics cards. I forgot what other settings need to be in place to make the graphics card show. I have a GTX1060 in the X16 slot.
Regards,
Mark
...
"If it doesn't cause an earthquake, you need a bigger subwoofer."