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

Joe Winograd

Desktop Support Analyst

edwin sanchez

Developer & Coffee Roaster

Scott Fell

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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
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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.&nbsp; <a href="https://www.youtube.com/watch?v=0vY2afJCNuQ" rel="ugc">https://www.youtube.com/watch?v=0vY2afJCNuQ</a> I have had to do this a lot on desktops and that solved the issue.&nbsp;&nbsp;
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Hi Edwin,<br />
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
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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.<br />
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How can this be remedied?<br />
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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.
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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.

Laptop Makes Loud Noise

This topic area includes legacy versions of Windows prior to Windows 2000: Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions including Windows Mobile.

Windows OS

A laptop or notebook is a portable personal computer with a clamshell form factor, suitable for mobile use. Although originally there was a distinction between laptops and notebooks, the former being bigger and heavier than the latter, there is often no longer any difference. Laptops are commonly used in a variety of settings, such as at work, in education, and for personal multimedia. A laptop combines the components, inputs, outputs and capabilities of a desktop computer, including the display screen, speakers, a keyboard, and pointing devices (such as a touchpad or trackpad) into a single unit. The device can be powered either from a rechargeable battery or by mains electricity from an AC adapter.