I just had my first "magic smoke" experience. I was slapping a PC floppy drive in a Sun clone box that was running an UltraAXi board. I knew these boards had 34 pin floppy connectors on them, so I slapped the floppy drive onto the first one I saw. The machine wouldn't boot, so I swapped it to one of the straight through floppy connectors, as opposed to the crossover one it had been on. When I hit the power to that machine, the cable started burning, one of the wires burned all the plastic off of it, it smells horrid, but as soon as it did it, I spotted the real floppy port. Oops. Anyhow, as I cannot dig up the documentation on it right now, I have no clue as to what its supposed to do, but its worth checking that out if anyone sees a board with two floppy connectors.