Author: kartik_subbarao
Subject: Z270 Supercarrier 09/d0, can't go to backup BIOS
Posted: 24 Feb 2017 at 3:09am
Some progress -- I found the set of D_BIOS_TEST1 pins. It wasn't in that group of 5 jumpers, but located by itself to the right and above CHA_FAN3. The fan connector was obscuring it from my view before.
Edited by kartik_subbarao - 8 minutes ago at 3:18am
Subject: Z270 Supercarrier 09/d0, can't go to backup BIOS
Posted: 24 Feb 2017 at 3:09am
Some progress -- I found the set of D_BIOS_TEST1 pins. It wasn't in that group of 5 jumpers, but located by itself to the right and above CHA_FAN3. The fan connector was obscuring it from my view before.
Now I'm able to boot into BIOS B, but I have another problem. It boots and quickly shuts down 1-2 times, then boots and does the Secure Backup UEFI B->A until the progress indicator reads 99%, then it shuts down, then boots and shuts down quickly again, then boots back into the secure UEFI backup and repeats this in a loop.
I've tried interrupting this loop by powering off the computer after the first or second reboot after the 99% done, and then removing the jumper. It switches back to BIOS A, but I get the same 09/d0 lockup with BIOS A again :-( It seems like the secure backup UEFI B->A didn't work.
Thinking about what other options might be possible.
Edited by kartik_subbarao - 8 minutes ago at 3:18am
