Onboard audio stopped working

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Jul 20, 2013
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I have been opening my computer case and working on things in there, so I have reason to believe it is something I did that caused the onboard audio to stop working. Windows 10 sees the devices as normal and reports that they are working correctly. But none of the audio works -- headphone jack on the top of the case, SPDIF out is not working (there is no red light coming from it) and the 3.5mm jack all have no sound coming out. Windows Audio troubleshooter says I haven't plugged in the speakers. The "configure" button (which lets you choose how many channels you have) is greyed out -- but I do have onboard 7.1 audio. What should I do?