How do I blow a driver??

[ian823478]

Thanks to 2e0poz and especially Dean, who spent an hour on the phone with me last night - a case of the nearly blind leading the blind!
Update:
BIOS was set to ECP, now EPP, no change.
Wasn't certain had loaded demo version of Mach3 from the Artsoft site so did that - no change.
Voltages between GND and DIR pins on xyz driver boards all were less than 0.2 or more than 4.8 when active.
Heres something else - I unconfigured the x axis on the ports and pins page (enable off, pins to 0, port to 0) and the x motor STILL grumbles and turns in the same way with no Mach activity!
One other thing, the desktop is a 2.2GHz Compaq Presario. The drivertest program shows a message 'pulsing too fast' but the pulses per sec show as about 15000 to 17000 where I believe 25000 is required, BUT in Mach3 diagnostics page pulses is always within 10 of 25000. These seem to be contradicting messages?
Will have to do some work this morning but unless anyone has inspiration will post motherboard/BOB/cable back to Roy this afternoon (as he has suggested).
So it looks like I'll be back working on motor mounts tonight!
Thanks again
Ian

[JAZZCNC]

Bios needs to be set to ECP. . . Also are there any settings in the bios for any type of power managment on the fly CPU clock frequency changing type settings, will say something like EIST or C1E.? If so then disable them. 99% sure this isn't your problem now but it would be when you did get it sorted because Mach doesnt like the CPU being messed with while working.!!

Would completly eliminate the PC by try connecting to another (But not Laptop).
Also forgot to mention make sure the PC doesn't have Apple Quicktime or any Adobe products installed. Turn of any power management, screen savers etc and auto updates.

Few only took 30mins and 6 attempts to write that so must be better now, think I'll try and finish that welding now.