Re: Repair of m458 p80 motherboard 386 / 486
Posted on 2023-06-12, 16:36
It seems that the CMOS memory is cleared after I save it from the BIOS. I am using a Li-ion 3.6B battery that I find a bit low for a new one. It is 3.65V when measured directly and 3.30V after the protection diode. Before it was better I think. I have installed the 4069 although I do not know for …