I've recently bought Z77MA-G43 MBO and proceeded to install Win8 x64 on it. Everything worked just fine for first 3-4h after which I have just lost audio. Not in a way that a device is no longer present but in a way that i doesn't recognize anything is plugged in (more on that a bit later). The device is listed as working properly. Only time I ever get some kind of 'action' from it is when I plug in my headphones (which work, and I have also tried plugging in the speakers) into line out (green) port. The speaker configuration remains unchanged but the microphone detects constant plugging in and out (like 2-3 times a second). I am 100% certain that I didn't damage the audio ports during installation or after.
Is there something else I can do (I've flashed BIOS to latest version, re installed Win8 and Win7, tried both MSI and Realtek drivers) or should I just go to the store and call for warranty?
Thanks in advance.