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General Mach Discussion / low pulse frequency in drivertest

« on: January 04, 2010, 02:13:07 PM »

Hi;

I am a newb here and just putting together a PC to run my CNC router (not here yet).  After a clean install XP service pack 2 and upgrades, now SP3, and a new install of the latest Mach3, I am getting the following on drivertest-

Computer
1.6 ghz P4 with 512 mbytes RAM

Drivertest
frequency   12318
system       Excellent
CPU           1593
short          79.3 us
long            83.8 us
apic timing   8100
Max Var      5.8-7.3

The graph line is above the display, with occasional short spikes below


When I run Mach 3, diagnostics says pulse frequency is 23209 and variation is in the +7 to +10 range

I have run all the optimization.txt items and the system is running clean.

Any suggestions?