well, I have 13.9 VDC going into the board, off a large deep cycle battery, and I'm running a board profile for the board, but it matches the profile I had saved, ports and pins, I measured voltage on a older 1.5 battery and got 1.4, then a 9 v and got 9.6, that ones new, so the volt meter is good, the board was working fine, I have 2 boards, both work fine, only thing is I did get 3.0 volts at the inputs out of the ports you suggeseted. I grounded between the dir and step pins, but when I plug it into the board, only z and e move, but its not the motors, and both boards are the same, The other computer with the same driver is pushing a little less voltage. I didnt get any action on the vender supplyed driver like many post say, moship, was out for the weekend, called them this morning, no wonder I couldnt find the drivers, I did a lot of searches.., they sold to ASIX.com, whoudathunk, I did find one driver a guy said works, but coulnt get it to load with the card, I think my problem might be low voltage, Thats what took me so long ,I was doing reasearch, Just because z and e work better, I thing they really reqire 5 volts, the boards were working fine.I had them on old desk tops, minimum requirements, on crashed I figured the other would too. I'm going to buy calyspo msm probably for the probing funtions.
The bummer is I bought these from a cnc board dealer, I got a deal on 2 olds micro servers, without pci cards, so I wasnt really prepaired, I fiigured That a pci printer card would work, at least from them, I told them what I had, a 4 axis tb6560 isnt a rare board,and as long as hes been in business, he out to have some kind of capatabilty chart, I didnt mind footing the extra 10 bucks a board, but he out to know that those are low voltage if he selling them, From the post ive read now, That causes a lot of wasted time for a cheap board, hell ,find out what a guy needs , if I needed a 5 volt card, why sell me a 3 volt ca? serdll me a 5 volt card, and have a driver that he know works..I was supposed to measure the voltage between the step and dir?I'll check between a ground, pin 18-25 are grounds? ok I just checked, I get the same, I guess z and e will work on lower voltage, i'll put this computer on the other board,and see what happens