I get only varying strange static sounds. Sound was working great before. Best I can say is that I installed a new case fan. At one point after I turned the comp on, it suddenly shut off after I opened up google chrome. I turn it back on, no sound, only static. I tried uninstalling and reinstalling drivers. No effect. Also, I get constant messages that I plug and unplug a device into the audio jack, even though I'm doing no such thing. I tried plugging in headphones directly to the phone jack on the mobo thinking it might just be the speakers. Nope. Same thing. There is clearly a problem. Is this fixable?