High pitched/high frequency noise coming from the CPU area!

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RobertXPS

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Jul 6, 2014
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Greetings everyone.

I recently replaced the thermal paste of my Intel Core 2 Duo T7400 CPU and now, after a couple of days, I started to hear a high pitched/high frequency noise coming from the CPU area! It\s hard to hear with any other background noises going on, but it drives me nuts as I am quite sensitive to high frequency noises. The noise disappears everytime I give the CPU a task (i.e. open a new tab) and comes back again after the CPU is finished with that task. I guess you could say that the noise is emitted only when the CPU is idling. Also, the idle temps are quite inconsistent and vary from ~43 to 65 degrees celsius. What could be the problem? The noise is gonna drive me insane...
 
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RobertXPS

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Jul 6, 2014
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I don't think so, because the sound is intermittent. Besides, it wouldn't go away after I assign a task for the processor.

 
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6R1M01R3

6R1M01R3

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May 25, 2014
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Coil whine from a dying fan can be intermittent. When the fan is running at lower speeds it can be more audible than when it is spinning faster.
 
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RobertXPS

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Jul 6, 2014
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But the fan of the speed doesn't change, and the noise still disappears COMPLETELY after I assign a task to the CPU. Your solution doesn't make sense then, right?

Also, I forgot to mention that it's a laptop. A Dell XPS M1710.
 
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