Plasma: There is even more that I didn't show in the picture. Initially you saw the battery had leaked. Well it ate through the copper connections that were adjacent to the battery location. There are broken cap's, corrosion on some of the chips and as you saw corrosion in the power connector. No, this set of posts is a follow-up to an earlier post on a IBM 286 that I was restoring. It was suggested that I replace that motherboard with a 386. The seller has initiated a refund my payment and I can keep the board. Frankly, I don't know what I will do with it. There is no schematic diagram to define say the broken cap's, which are probably bias caps in the pf range, but what size, I don't know. The power connector would have to come off along with the corroded chips and the socket that I mentioned. I'd have to find some sort of wire to replace the corroded copper connections eaten by the battery acid. Yeah its not worth the time or effort.