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7 Posts

12-04-2016

Denmark

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Re: Yoga 910 crazy loud fan even when CPU at <35%

2016-12-05, 14:28 PM
Where do i find these settings? :)
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6 Posts

12-02-2016

Sweden

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Re: Yoga 910 crazy loud fan even when CPU at <35%

2016-12-05, 16:25 PM

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7 Posts

12-04-2016

Denmark

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Re: Yoga 910 crazy loud fan even when CPU at <35%

2016-12-05, 17:15 PM

looks the same

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7 Posts

12-05-2016

United States of America

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Re: Yoga 910 crazy loud fan even when CPU at <35%

2016-12-05, 19:04 PM

I ran an experiment, to compare the fan noise of my new Yoga 910 16G/512G/4K with my 3 1/2 year old 2013 Macbook Air 8G/256G/i7 (which will be for sale soon).

 

To get the CPUs to 100%, I opened four non-overlapping browser windows, each continually running the Mozilla Kraken benchmark.

 

AFTER TEST STARTED:

 

Yoga: first couple seconds were quiet, then fan volume increased quickly to moderate volume, then over the next 20 seconds to full volume.

MBAir: first 15 seconds were quiet, then fan volume increased slowly to full after approx. 60 seconds.

 

 

MBAir full volume was louder than Yoga.

 

 

AFTER TEST STOPPED:

 

Yoga: fan became quiet after approx. five seconds.

MBAir: fan became quiet after approx. 30 seconds.

 

Yoga's fan had higher frequency sounds, like a turbine engine.

MBAir's fan had lower frequency sound, like rushing air.

 

 

It appears Yoga tried to keep CPU temperature as low as possible and ramped up fans the moment CPU load increased.

It appears MBAir allowed CPU temperature to increase, to reduce the need to ramp up the fan, but after the CPU reached maximum temperature, fans had to stay on longer to bring CPU down to proper temperature.

 

I didn't monitor if CPU was being throttled on either computer. Perhaps that is how the MBAir was able to delay bringing fans to full volume.

 

Lenovo has made a mistake in how they manage their fan. The Yoga 910 is visually elegant, and shares nothing with an industrial machine  -- except its sound! If it was a "toughbook" and more rugged looking, I suspect people would be more forgiving about the fan noise.

 

 

 

 

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7 Posts

12-05-2016

United States of America

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Re: Yoga 910 crazy loud fan even when CPU at <35%

2016-12-05, 19:07 PM

Lenovo can fix most issues people have been having by doing the following:

 

1. allow you to remap CursorRight & RightShift buttons (asking us to download a 3rd party app is unacceptable).

2. offer three fan profiles: quiet, normal, performance.

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7 Posts

12-05-2016

United States of America

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Re: Yoga 910 crazy loud fan even when CPU at <35%

2016-12-05, 19:09 PM

Lenovo can resolve many issues by adding this to the BIOS:

 

1. allow you to remap CursorRight & RightShift buttons (asking us to download a 3rd party app is unacceptable).

2. offer three fan profiles: quiet, normal, performance.

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1 Posts

12-06-2016

United States of America

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Re: Yoga 910 crazy loud fan even when CPU at <35%

2016-12-06, 0:02 AM

Hello everyone first time post. Just wanted to report that I just purchased mines from Best buys new limited line yoga 910's with glass lid and there has been no eratic fan noise. Perhaps a bad initial batch..

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67 Posts

10-17-2016

United States of America

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Re: Yoga 910 crazy loud fan even when CPU at <35%

2016-12-06, 3:16 AM
You got the glass lid one. Interesting. I wonder if it is fixed on the newer models
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67 Posts

10-17-2016

United States of America

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Re: Yoga 910 crazy loud fan even when CPU at <35%

2016-12-06, 3:24 AM
Actually someone else with the glass model also complained about the fan. So perhaps same issue after all
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4 Posts

12-06-2016

United States of America

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Re: Yoga 910 crazy loud fan even when CPU at <35%

2016-12-06, 3:50 AM

I have the model with the glass top.

 

Under advanced Power Settings, I set...

 

Maximum Processor Rate to 99% as someone else on this post suggested.

 

I also set SYSTEM COOLING POLICY to "Passive"

 

Fan is hardly noticable now. Saved me from returning an otherwise excellent laptop.

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