MS-7297 mobo Winbond Bios- System fan error

[XaRz]

Hello all,

(if this kind of post don't belong here, please let me know).

I'm new and I'm seeking information how bypass a BIOS setting of the MS-7297 (same as in HP dx2250).

The mobo doesn't boot because is detecting a system fan error, but the fan is plugged and working well.

Is there any way to bypass this setting? The system shutsdown in 3 secons and don't let to enter bios settings..I'm stuck.

Any ideas if the bios can be extracted or reprogramed without this setting active?

Thanks in advance anyway.