OK,
I have now made sure that both my cards are on their own IRQ, and I have also tried to raise the ULLI and still the problem remains.
I invested in a rather expensive and powerful (550 w) PSU a few years back so this shouldn't be a problem either.
My guess is still my MB and how the scope devices are distributed over the DSP's in this particular XTC-project.
Hopefully I'll be able to buy a new MB, CPU and ram in the very near future. So now the old dilemma rises again, should I go pure Intel or should I choose AMD64+nforce3 chipset? I'm leaning towards AMD, but these last experiences make me reconsider.
damn chipset-sensitivity
For those interested in listening to the before mentioned static particles, I have uploaded an MP3-sample in the musicsection:
http://www.planetz.com/forums/viewtopic ... forum=17&0
http://www.planetz.com/forums/viewtopic ... forum=17&0