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  • Registered: ‎07-23-2020
  • Location: Romania
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  • Message 141 of 143

Re:Yoga C940 4k - Fan runs constantly

2020-09-12, 13:56 PM

Just an update from my end. I eventually decided to keep the laptop, because of two reasons:


  1. The fans have become magically silent after a few weeks of using the C940 I'm always keeping the battery on Conservative Mode, which may have helped.
  2. The goal with this was to make it my secondary laptop, mostly used when I'm away from home. I can hardly notice any fan noise when working from a busy office.


YMMV though. If you plan to make this laptop your primary one and work from home, consider twice if you can stand the noise of the fans.


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  • Registered: ‎01-06-2020
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Re:Yoga C940 4k - Fan runs constantly

2020-10-02, 8:15 AM

So there isn't any real way on how to solve this? 


My laptop had a problem where the screen was flickering every 1 hour and the Lenovo technician had to reformat my windows. After reformat and reinstalling the drivers, the fans are noisy when I'm doing light tasks like opening one tab in Google Chrome. If I use Intelligent Cooling, the fan is noisy but not as bad like Extreme Performance Mode but the performance drop like crazy and I have no choice but to use Extreme Performance mode. 


Its been far too long for an issue like this to go unnoticed by Lenovo! They should have released a new BIOS or Driver Update that would allow the fan to not speed up when doing simple light tasks. 


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United States of America

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  • Posts: 78
  • Registered: ‎04-26-2020
  • Location: United States of America
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Re:Yoga C940 4k - Fan runs constantly

2020-10-02, 18:09 PM

Lenovo never ever fix anything. They release new laptops pretty much every day but never sort the buggy mess of the ones already released.


Worst company on the face of the planet.

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