Hello

I have a Zida 386 T.1 mainboard with the usual leaking battery damage.
The PSU turns on but no BIOS beeps. The BIOS chip works in another computer. I repaired the trace damages but still nothing.
I can't find any information on what the jumpers do.
Could you tell me what jumpers JP1, JP2, JP10, JP11, JP12 do?
A manual would be greatly appreciated.

Thank you.