soundguruman-I was installing a pci usb hub, and forgot to unplug the motherboard. I believe I allowed the pci connectors to touch the motherboard, and I heard a pop. Luckily, it only blew out the onboard sound, and it was a cheap motherboard. But since I'm running my audio off of a pci sound card now, does the onboard sound card even matter? In other words, if I replace the motherboard, would it solve the problem?
mmphoneman-I checked, it's not cell phone interferance