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Dell G7 7588 coil whine.

I have experienced mild to heavy coil whine around on the keyboard panel near the power jack. After running some search, I noticed that lots of similar cases happened to XPS 13 and it's somewhat related to the TurboBoost on CPU. 

When I turned off the TurboBoot in BIOS, the coil whine did become basically inaudible. But it induces a performance hit which I'm not willing to take.

Can Dell do a BIOS update to solve this as you did with the XPS series?

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