remove mb battery for 30mins and start over,then put battery in,load optimized defaults in bios and set your bios settings then at gigabyte splash screen press and hold alt and f12 to flash back up bios chip with main bios chip version so that both bios's have same bios version then try booting with two sticks
Managed to press Alt + F12... it does the Writing Bios Image..... 4080K OK... then resets? Is that how it's supposed to do it?