Ok, I just purchased a Gecko G540 and today I got my motors wired (with the correct resistors, etc) so I could hook them up and try it out. I got a crappy power supply from an Ebay seller that I attempted to use, but it quick working shortly after I hooked it up to the Gecko. Yes I shut down the Gecko while I hook it up.
Anyway, I tested all the motors on the Y axis and got great speed and holding torque, even though I'm using my old 24V power supply until my replacement 48V unit arrives. The problem began when I hooked up all 3 axes. The X absolutely would not work. I tried switching it to pins 8 and 9 and using the A plug instead. Still no good. I changed it to 4 and 5 and it runs.
I did continuity tests on the DB25. All good. I moved the two offending drivers around. They would not work regardless of where I put them. Oddly one still lights up its LED when it's connected...
Anyway, am I screwed, or is there possibly a way to reset the driver boards or something? I do not need an A axis at the present, so even one working board would put my machine back to work.