Quote Originally Posted by Steel View Post
Hi Paulus yes i am, im running rightmark cpu clock utility without that the pulse frequency wont stay stable on 25000 instead it will jump around 2300 to 23900
Its everything to do with the cpu not the output voltage from the parallel port

link is here http://www.majorgeeks.com/files/deta...k_utility.html

if you have a laptop with parallel port that wont run mach 3 at 25000 then run this piece of software and under management setting check box "Run HLT command when os is idle"
it works for me and i would be interested if it works on other laptops
I have the very same laptop, IBM T42 and am using it with my CNC router. I had and still have troubles with its parallel port. This is why I do not want anyone to go through what I went...

I'll explain the details later when I'll have the time. And I'll check the software that you're pointing, even if I'm a bit skeptic