I just put together a computer just for Mach3 it is a P3 800Mhz. The OCX test runns good and Mach runs good. But when running motors they only spin around 60 rpm in both directions. Changing the Feeds and Jog nothing changes. On my other computer the setup runs normal but on this one no good. All settings are same. But when installing windows I followed the XP config guide from Yahoo forums.
I'm thinking it's the mother board, it is some Tyan Computer Corp one.
Any others things to check before ripping the board out!