New motherboard GA-B250M-D3H (tested 2 new motherboards) resets bios settings to default when turning on after unpluging psu for a long time.
One mobo has F1 ver. of bios, second F4 - no difference.
It doesn't reset when psu is not unplugged after turning off computer.
Battery checked, different settings of bios checked. No change. Windows' stability is ok.
Please help, I don't know what to do.
RAM: Corsair DDR4, 8GB, 2400MHz
CPU: Pentium G4560