Mesa 7i76E first try

The ping times are pretty bad, what does a latency test show?

You probably need to make sure that your BIOS settings are optimized for real time
(no speed-step, no C states > C1, etc)

The most common causes of no motion with step/dir systems are

1. wiring errors
2. step times to short (start with 5000 ns)

News!
I tried by manual editing the ini file,and putting 10000 as value for dir (setup and hold) and step (len and space).
Then started linuxcnc, homed X and jogged X.
It moves....

PCW wrote: The ping times are pretty bad, what does a latency test show?

You probably need to make sure that your BIOS settings are optimized for real time
(no speed-step, no C states > C1, etc)

The latency test is running since 10 min and shows 2492 as servo thread and 209264 as base thread.

About my bios (asrock q1900m):
I disabled all the following
- intel speedstep technology
- cpu c states support (was c7)
- enhanced halt state(c1e)
- no execute memory protection
- intel vitualization technology
- onboard audio
- parallel port (as i'm using ethernet)
- suspend to ram
- acpi hpet table
I didn't start any software to "load" the latency test, because i've no other software installed on this pc but linuxcnc (this pc will drive only the cnc)

The only problem now is that the pc doesn't boot anymore.....it shows only the bios screen,as the hdd with linuxcnc doesn't exist anymore.....damn....

So loaded the default bios settings ad disabled only the items concerning the powersaving features + the audio

Run the latency test again for 10 min
The values are
- servo thread 38085
- base thread 44288

New ping,after 20 packets
min/avg/max/stddev values:
0.106/0.133/0.248/0.029

Much better.

Does that asrock board use an intel chip for ethernet?