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17 R3, high pitched sound?

I have recently changed the fans module because the laptop was getting way too hot while gaming and it was still under guarantee. Sadly not only the heating problem remained but also a weird high pitched sound appeared. It starts when the fans enter higher level/speed, goes up and down when the fan kicks in at it's lowest level, and isn't there when the fan is totally quiet. We have replaced the fans already 3 times, replaced the motherboard and the problem still persists. Any idea what else we could try?

The actual noise,mostly at the beginning and at the end of the audio.

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Re: 17 R3, high pitched sound?


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