Re: Acer Aspire 7551-7422 Sound Issue
My Acer does this too. It's meant to; it tells you when the power has been disconnected. Did you perhaps have it muted in the three weeks before now?
You can turn it off by uninstalling the Beep driver - go to the Device Manager. Click the View option at the top, and make sure Show Hidden Devices is ticked. Then, go to Non-Plug and Play Drivers, right-click on Beep and uninstall it.
Keep in mind there's no way to undo this as far as I know.
Desktop i5-4440 - ASRock Z77 Extreme4 - EVGA GTX970 - 4x4GB 1600MHz - Samsung 850 EVO 250GB - Be Silent Base 800 - 3TB+1TB+640GB
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