I had the same issue with 3 of them. They all failed within 2 month after gigabyte waranty was over. All of them was all power rails present when turned on.
there is one of them is still working.
Here is working the BIOS in attachement. I think a clean ME would be needed
if you can solve the issue then I would be happy to try out your solution:
SOME HELP FOR FLASHING:
+ This BIOS can only be programmed if the 3.0v is present on the CMOS battery.
If its low or no battery is inserted then the programmer will FAIL to flash BIOS.
+ CMOS can be cleared if you remove CMOS battery and press+hold power button for 10 seconds.
there is one of them is still working.
Here is working the BIOS in attachement. I think a clean ME would be needed
if you can solve the issue then I would be happy to try out your solution:
SOME HELP FOR FLASHING:
+ This BIOS can only be programmed if the 3.0v is present on the CMOS battery.
If its low or no battery is inserted then the programmer will FAIL to flash BIOS.
+ CMOS can be cleared if you remove CMOS battery and press+hold power button for 10 seconds.