I was wondering if you could help me with an IRQ issue. I have a music production machine that is running 10.7.4. Its a GA-EX58-UD3R rev1.6 motherboard with an i7-920. I am trying to record with a lynx PCIe AES16e audio card at very low latencies (64 and 32 samples). At 64 samples I seem to have CPU spikes here and there. At 32 samples all I get is distortion static that sounds like heavy bit reduction. I believe there are IRQ conflicts with the audio card and either cpu power management, video card, ethernet or a combination of all of them. I installed with and a pre-edited DSDT file.
Do you have any suggestions/thoughts?