[SOLVED] Unit only boots with ME disabled

EDIT: Solved by reflashing the BIOS.

I can only boot my RPx by going into BIOS and using the “Reset System with ME disable ModeMED000”

I have to go into BIOS and manually select that every time. I have looked through BIOS but cannot find a permanent ME disable. Anyone have thoughts on this and/or possible checks?

System had been working fine with Win10 installed. When I boot ME disabled, Win10 boots. Otherwise, system hangs at green “fan” screen.