Quote Originally Posted by ian823478 View Post
Minor correction - desktop is 984MHz with 1GB RAM
Ian
984MHz sounds very limited for mach3. I used to use a 1.4GHz AMD for the CNC computer. It appeared to run just fine on 25KHz kernel frequency, but I found when I switched to the 3GHz P4 I could get much higher step frequencies (i.e. feedrates) with the same kernel frequency.