Hello KC Coxe,
Here are our recommendations:
Ensure you have followed a clean installation of the Operating System using the latest drivers from our website.
Test the system on a minimal configuration out of the chassis. Test with minimum memory installed.
Test with a different power supply with at least 550 watts.
If the issue persists, update your motherboard BIOS to the latest version available.
I finally tracked the issue down to an external backup drive plugged into the rear USB 3.0. The board does not like that drive there when booting up. Really disappointing. Any ideas to fix that?