First post, by treeman
I am trying to find which pin on the 486 cpu socket is responsible to talking to the cmos and bios
From my understanding as soon as power goes to the cpu the cpu interfaces with cmos register addresses.
I am interested in finding the exact line this communication is done on. On the 486 pinouts on google I can't see anything regarding the cmos or bios.
Does anybody know exactly how this communication is done? Maybe im looking at it from the wrong angle
I have 2 exact motherboards, one working one with a cmos register error so I am trying to find the line of communication between cpu and cmos then compare between the two.