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Guías de reparación y soporte para placas base y CPU.

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Why has my CPU started emiting scratching/ whining noises?

My laptop has recently started to make a peculiar high pitched whining/ scratching noise, after taking a good long listen, and testing both my fan and my hard disk, I'm 100% sure this is my CPU that is making the noise.

I'm a little concerned as this is the first time I have heard these sorts of noises from this machine.

Possibly related, shortly before the noises started, I had taken my machine apart to clear it of dust, as it had been having some minor heating issues. I had taken the heat sink off to clean underneath it. During this process, I removed some thermal grease on a plastic insert, as it was caked in dust. Any possible coralation? Would acquiring and applying more thermal grease help resolve this? I was careful to make sure the CPU was coated in the same amount of grease as I had found on it, and I'm 95% sure the heatsink was remounted properly.

I get this noise mostly upon cold boot and the first 10-30 minutes of uptime. If I'm gaming on my device I can't hear it as much, (no the fan/ disk don't drown it out), it drops in pitch a little bit and usually becomes inaudible after the CPU heats up past 60 degrees.

This is one of the most irritating noises I have ever heard, and it is slowly driving me nuts. Any help or insight into why this is happening would be greatly appreciated.


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Hi @whygodwhy ,

Very rare for "ICs" to make any noise without actually failing shortly after. I'd be looking back at the fan. Perhaps some "dust " got into the bearings

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I'm 100% sure it is not the fan, I took out both the fan and the hard disk and booted to Luinx via an external USB drive and it was still making the noise

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Can't tell you how to fix it, but I can't tell you that is almost certainly coil whine.

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Coil whine. Perfectly normal.

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My conclusion as well, thank you. Any ideas on how to mitigate/ resolve?

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Not really. Depending on the frequency, it may only be heard by some people. I can here coil whine in a ton of stuff when others can't hear it at all.

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my laptop is not open but it’s battery is charging why?

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Satan estará eternamente agradecido.
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