OH MAYBE THIS IS WHY this is not how 3 pin fan connectors work! This is going to try to undervolt your fan backwards while putting +12v down the tach-out pin
well, relatively "works fine". the fan spins. I still haven't managed to get this computer to respond to any keyboards and when I boot it, it's started looking like this:
after testing the voltage polarity, I risked a real keyboard on it. no luck. I think I'm gonna have to just mark this board as "totally fucked" and give up on it.
I tried switching to this WinSystems SAT-DX, but it's got no VGA out (and I don't have a PC/104 VGA card on hand) and it's beeping an impossible pattern for the award BIOS it supposedly has.
@elfi It's a PICMG single board computer. You plug it into a backplane and it runs the other PCI/ISA cards from this, and if it breaks you can just swap this card out individually, not replace a motherboard.
@foone Of course, going over it again, I'm a bit curious why they included an ATA and floppy controller on the card when there are options for that out there, I guess because it was already an off-the-shelf bridge? But that doesn't explain the SCSI controller... Still, a neat concept!
@elfi same reason those are included on motherboards: it means you get more use out of your limited expansion slots, since you don't need to use them on common things 99% of computers will need
@foone Of course, going over it again, I'm a bit curious why they included an ATA and floppy controller on the card when there are options for that out there, I guess because it was already an off-the-shelf bridge? But that doesn't explain the SCSI controller... Still, a neat concept!