crazy X570 master problem.
I've built my own computers for years and worked with many gigabyte motherboards but I've never seen this kind of problem before. Everything works great until i flash the main bios to a newer version. Then it fails to load windows. However the back up bios works just fine, so it clearly not a hardware issue. I can access the main bios and change any settings but It won't load windows. It states there is no boot drive available. I thought this may have been a defective board as did gigabyte when i put in a ticket for technical support, However i got a replacement board from amazon as i thought the first was broken and now the replacement board is doing the exact same thing. It has to be a software option somewhere, but i can't for the life of me figure out what it is and have searched everywhere. Does anyone have any ideas? I've tried re-flashing the bios, clearing the CMOS, loading optimized defaults ect. but to no avail. The only post code is AA, which apparently stands for reserved whatever that is. Any help would be appreciated.