Quote Originally Posted by Mad Professor View Post

I am trying to use this card on my cnc computer, as the motherboard does not have an onboard printer port.
Are you 100% sure because some MB don't have the PP socket but they do have a PP pin header on the mainboard so you can add your own PP header.?

If the bios supports PP IE: ECP EPP etc then I would suspect there will be a header on the MB.

The reason you could be losing steps is because lots of after market PP use usb bus and do some trickery to turn into PP and it's the USB thats the problem.? For things like printers etc then it's fine has they don't need time critical pulses but USB on it's own is not fast enough for Mach so steps get lost.?