How to "beat" BIOS on K9N4 Ultra?

Question

Iron

Good day!
The motherboard from MSI - K9N4 Ultra fell into the hands - ua.msi.com/product/mb/K9N4_UltraF.html#hero-overview The
symptoms are as follows: the mother starts up, writes that checksumm error, suggests pressing F1 to configure the BIOS or F2 - boot with default settings. If you press F2, the computer boots up, Windows works, everything is in order. If you press F1, configure the BIOS (make any settings or even do nothing), save and reboot - the mother will no longer start - i.e. The fans are spinning but nothing is on the screen. After resetting the BIOS, everything repeats - F1 or F2 .......
Prots, memory, viduhu, PSU changed - does not help.
Bios reflashed - the same thing ...
Maybe someone has thoughts about this?

Answer 1

And if you go into the BIOS, but select the same default settings and save?
I'm not sure, but maybe a flash dom chip (or something like it, forgot exactly) where these same settings are saved.
Even with problems with the BIOS, it is advised to change the CMOS battery.
That is, a battery - flash dom - trash.