<br><div><div>*** That should have read "dont' really exist ABOVE 15" sorry ***<br><br> </div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Well, remember that IRQs don't really exist about 15. So your wct2xxp, megaraid, eth0, and eth1 are all sharing an IRQ (or at least some of them are). Since the wct2xxp is not PCIe compliant (it's only PCI) and only runs at 33mhz (not 133mhz) it's having all kinds of issues.
<br><br><br>@David Cook: APIC does not work. APIC gives you exactly what this person is describing... you get shared IRQs running different cards. With 15 real IRQs, I can't understand why anyone would need to share any IRQs until absolutely necessary. What this says to me is that Dell (and now other manufacturers of servers) are taking a cheap route, and rather then running individual busses (or something along that line) they are daisy chaining NICs, PCIs, etc together and just putting them all on the same IRQ. Apparently PCIe is suppose to be ok with that. Unfortunately, there is alot of PCI equipment out there yet.... you would think they would at least offer some sort of backwards compatibility.
<br><br>Anyway.. yes the above example is EXACTLY where I've seen issues with the Digium cards. Assuming the Digium is sharing with the NIC (or the RAID.. it doesn't matter)... when the NIC (or the RAID) start getting alot of activity on them, your audio is going to suffer.
<br>
</blockquote></div><br>