Not really tuning related, adding this post for people with the same issue, as the solution isn’t easily found.
Every time you unplug or plug in the power cord on a G530 it makes a very loud beep.
You can’t disable this in BIOS.
In Windows 7:
- Click on the ‘Speaker’ icon on the Taskbar (the volume slider control should popup)
- Click on the ‘Speaker’ icon on top of the Volume slider control
- On the new window that opens, click on the Levels tab
- Click (de-select) on the ‘PC Speaker’ mute checkbox