Well the hub wasn't the problem. When I booted up this morning I got the black screen with the Bios warning. Came on for 10 seconds...shutdown...restarted on its own, but in a state as if I'd done a hard shutdown, pulled the plug, and rebooted. It did not present the bios screen, just hung. I did a hard shutdown...cleared cmos...rebooted. Bios boot screen came up...entered bios...still 1504...everything had reset to defaults...left alone and exited. Computer would not boot to OS with a blinking cursor on a black screen...I let it blink for 15 minutes then did a hard shutdown and rebooted. This time it rebooted into Win 10. I did multiple shutdown/restarts to make sure that was working. Finally, I did a re-flash to 1902, which was successful, reconfigured my XMP and settings and crossed fingers. I have the hub plugged in. The last thing I had done was to do an initial run of the Realbench benchmark which was successful last night. I'd planned to finally do an overclock today as per Chino's sticky, but didn't get that far. Any other ideas? I'm holding off on the OC to see if the BIOS continues to crash...Thanks