Thanks, I will give it a try. I didn't know about TH99, thanks for the tip! 😀

No, it is just three pins in a row, however there is a four pin header "J1" right next to it. I will chech the ground pin with multimeter, but I still need to figure out the positive pin, I guess it is not a good idea to apply voltage to some random pins. Yep, I have already cleaned the board with …

Hi! I recently acquired two old socket 3 motherboards and decided to build a childhood 486 system around them. Unfortunately one of the boards had the known battery leak problem and the traces from the battery were completely eaten, however the board has a external battery header, at least I believe …