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edwin sanchezFlag for United States of America asked on

Laptop Makes Loud Noise

What are the causes that lead a laptop to make a loud noise and turn hot? In this case, if it makes any difference, the laptop is Lenovo 490.

How can this be remedied?

Noticed search indexer in the task manager using most of the CPU output so, I rebuilt the indexer. However, that didn't resolve the issue. Then, I disabled the Windows search indexer in services. Still no luck.
Windows OSLaptops Notebooks

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Joe Winograd

8/22/2022 - Mon

"noise.. and .. hot" implies it could be a failing CPU fan.  What does the loud noise sound like?  Does it sound like it's coming from the speakers or from a mechanical device?

You may be able to blow out the ventilation on the laptop (holes on two of: back, side, bottom) and get rid of dust, but that doesn't usually make noise.

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Joe Winograd

Loud noise is often a malfunctioning fan...which also leads to overheating. So, based on the those two symptoms, I'd say...bad fan. Remedy is to replace it...usually pretty easy, but it depends on the laptop, and I have no experience with that particular model. A search at the Lenovo site should turn up the service manual for it...and I've found that Amazon and eBay are both good sources for replacement fans. Regards, Joe
Scott Fell

I would go with Kevin, start by opening up the laptop to expose the fan. If it is clogged and not moving properly, it will make a loud noise and and overheat because it can't exhaust. It's not something everybody is comfortable doing but take it step by step and watch a few videos and you will see it is not that hard.  https://www.youtube.com/watch?v=0vY2afJCNuQ I have had to do this a lot on desktops and that solved the issue.  
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James Murphy
Joe Winograd

Hi Edwin,
I see that you've selected a post as the solution, but it had two suggestions in it...I'm curious which one worked...blowing out the dust or replacing the fan? Regards, Joe