Good day all.

I have not long ago upgraded my cnc pc, but ever since I am having nothing but problems with the stepper motors stalling.

Here are the details for my current cnc pc:
Intel Pentium 4 (640 Prescott) @ 3.2Ghz.
FoxConn NF4SLI7AA-8KRS2.
2GB (2x1GB) DDR2.
nVidia nForce 210.
60GB IDE Seagate.
Moschip MCS9865IV-AA Dual LPT Card.
Windows 7 Home Premium 32Bit SP1.

As per the title I think that my problem is related to spikes in the DPC (Deferred Procedure Call).

I have run the Mach3 driver test as this shows no problems or spikes.

But when I have Mach3 running and run any of the axis I will get ramdom stalls, and if I run more then one axis at a time they will stall at the same time.

I downloaded a DPC Latency Checker, and I could see that eveytime that the motors stall, there was a spike in the DPC.

This cnc computer, has had a clean install of Windows 7 Home Premium 32Bit SP1, and the only other programs that are installed are Mach3, and CamBam.

Can anyone here give any advice?

Thanks for your time.

Best Regards.