I have a N500 laptop. There is a really loud beep emitted from laptop whenever I plug/unplug the power cable or when battery becomes low.
If I mute the laptop, it does mutes expectedly, but I would much rather remove it outright.
Note: The method mentioned above works only for certain models such as N500 and Y710. Some machines can be fixed via bios, or upgrade to latest bios.
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