Re: Tiny 486 build - SBC with ISA backplane
Posted on 2024-03-02, 20:59
Once you get it working standalone, plug it into the backplane by itself and see if you have the -5V and -12V power on the other ISA slots. I see a single transistor, which is likely generating 3.3V for the CPU. But I don't see anything that would generate the other voltages. https://upload. …