Crazy gigabyte X570 Master issue

[John066]

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.

 

Thank you.

[Kenpachi1985]

Whats the name of your Motherboard? What Bios version are you on and what version do you want to flash? Do you use a Sata SSD or a M.2 (NVMe) as the boot drive?

For example - i have the Z390 Aorus Master and i use a Samsung 970 Evo Plus NVMe M.2 - and i HAD to use the second M.2 slot since it would not show up in the top M.2 slot.

[John066]

Wow really should have given that info lol.   It's a gigabyte X570 Master, Ryzen 3800X, and Samsung 4tb 860 Evo 2.5 SSD.   Everything is wired correctly as it boots just fine in the back up bios which is the factory F4 bios.   The new bios I flashed to is the F10, but i also tried F7, F6 and even going back to F4 but the same issue occurs no matter what.

[Kenpachi1985]

The only thing i found so far is that people had to do a fresh windows 10 install, but i wouldn't bet on that since it was hard to find more then just a couple forum entries scattered around via google search. Someone else with actual knowledge is needed here, i am just a mere "meh, let me google that and see waht i find" guy

[John066]

anyone have any ideas?

 

[Tristerin]

3 minutes ago, John066 said:

anyone have any ideas?

 

Do you potentially have to many things slotted on the motherboard taking away the PCI lanes needed for the boot drive to be recognized (I.E. and this is a longshot but maybe the BIOS updates changes how the lanes are split?)  Im not confident on this one.  Just talking out loud.

 

Id also suggest a fresh install using the BIOS you know works, then attempting to update BIOS after.

[Leanora]

Do you see the drives in the BIOS?

Did you try booting from the installation file?

Did you try the repair function?

Maybe a GPT issue but that would be really strange...

Are you sure it's on UEFI? ( also makes little sense I think ?)

 

 

 

[John066]

1 minute ago, Leanora said:

 

 

 

I doubt there are too many things taking up PCIE lanes. Just a 2080 TI and to Sata drives.

 

I can see the bios and select it but i just get a aorus logo thats constantly trying to load windows but never does.

 

I've tried UEFI, diabled and legacy, it doesn't seem to make a difference

[Leanora]

I'm stumped.

 

Try  min config but with the OS disk in and see what happens

 

boot from the win installation file and try repair, if that does not work a fresh install.

 

If you are not able to reinstall it, then I have no idea what is going on at all.

Did you contact gigabyte and if so what did they say?