Was just using my computer I've had built for a few years now, and a slight static hiss started in my right ear. It got worse over 10 - 15 seconds and then went quiet. The left ear did the same thing right after, now I have no audio. I had the headset plugged into the front case port so I tried switching it to the rear motherboard port and got nothing. The headset works on my phone. After restarting the computer I get audio back for a few seconds then it develops the static and goes out again. Right now the only thing I can think of is that some internal wiring or chip on my motherboard has to have gone bad for all my audio ports to stop working. I cleaned the ports and didn't get much debris or dust out of them. As well as unplugged and plugged in the wire from the case ports to the motherboard.