I had the bright idea of swapping out a Model 25 board (8086) with a Model
30-286 board, thinking that the boards were exactly the same. They are,
actually, but the Model 30 board comes with a three-slot ISA riser, which
does not fit in the Model 25 case.
Apparently I need the Model 25-286 two-slot riser. I don't want to try
plugging the original 8-bit Model 25 riser in, I fear it will somehow fry
the board.
Does anyone have a riser card they're willing to part with, or know the IBM
part number I need to be looking for?