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Hp Pavillion laptop

When I go on-line after 5 or 10 mins I have a high pitch humming noise. I have btinternet and a HP pavillion laptop

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Try unplugging your power supply it may be failing and causing te noise.

Alternately your fans may be coming on when the machine warms up causing the noise - listen close by the vents on the machine and you should be able to narrow down where the sound is coming from

Posted on Dec 21, 2007

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