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50 Posts

04-02-2018

Italy

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Re: X1 Yoga 3rd gen. CPU frequency pegged at max

2018-04-06, 19:40 PM

installing windows will take 15 minutes from your life. Just do it and enjoy your laptop. Heating issues are a fun thing to read imho. You bought a 1kg laptop with an i7 and an nvme(nvme are hot things) . Were you expecting temperatures in the 30°C range? Cm'on get serious .

Till now I've experienced thermal throttling only once during real world usage, during some CFD analysis. Well in ANY other situation, cpu worked at 20-23W without any throttle for hours in the 80-85°C range. These machines are awesome 

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7 Posts

04-03-2018

United States of America

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Re: X1 Yoga 3rd gen. CPU frequency pegged at max

2018-04-06, 20:10 PM

Hey Arjov, I'm not sure if you actually read this thread closely, but nobody here was complaining that the computer gets too hot under load. The issue is that it was stuck turboing to max boost frequency with loud fan noise while idle. It is reasonable not to expect this from a new computer from a major manufacturer without a full re-install of the OS.

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50 Posts

04-02-2018

Italy

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Re: X1 Yoga 3rd gen. CPU frequency pegged at max

2018-04-06, 20:33 PM

AdamNP1 previous answer was indeed referring to heating/fan issues. I know there's a problem with the frequency pegged at 4Ghz while connected since I faced it too. Lenovo knows too since

 

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5 Posts

04-07-2018

Australia

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Re: X1 Yoga 3rd gen. CPU frequency pegged at max

2018-04-07, 6:17 AM

I'm currently having the exact same problem with my new X1 Carbon 6th Generation - cpu is at 3.8ghz (I assume max turbo boost clock) even at idle, only when plugged into A/C power. 

 

I am going to attempt the suggestion of a clean windows install, to see if it fixes it. Will provide update on the outcome.

 

Very frustrating that I have paid a large amount of money for the pleasure of dealing with this. A switch from Mac has not been confidence inspiring.

 

someotherguy Could you please update the thread on your findings.

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5 Posts

04-07-2018

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Re: X1 Yoga 3rd gen. CPU frequency pegged at max

2018-04-07, 13:25 PM

I figured this update deserves a seperate post.

 

The problem is fixed with a clean install of windows. 

 

1. Used Windows Media Creation Tool to create bootable USB and clean installed Windows

2. Allowed all Windows Updated to be performed first.

3. Installed Lenovo Vantage (which subsequently required Lenovo System Interface Foundation to be installed)

4. Checked and installed remaining Lenovo Updates through Vantage

 

CPU now no longer pegged to max boost when plugged in and in Best Performance power mode.

 

Subsequent problems from this process, with solutions:

 

- Lenovo colour settings no longer responsive. Windows Update had installed a newer verion of Intel UHD Graphics which likely conflicted with Lenovo Settings. Downloaded older Intel UHD Graphics drivers specified in the X1 drivers page, which fixed it.

- Keyboard HotKey/SpecialFunctions no longer responsive. Not listed in the X1 Drivers page, and I assume missed by the Vantage updates process. Downloaded Lenovo HotKey Features Integration and installed manually.

 

Moral of the story, the grass is actually a lot greener on one side, and it's not this one.

 

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26 Posts

04-01-2018

United States of America

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Re: X1 Yoga 3rd gen. CPU frequency pegged at max

2018-04-09, 4:43 AM

Thanks for solution (I played with regedit and altered the power plan), now under normal load - a couple of VM's, Chrome tabs and music player - laptop is not spinning fan *at all*. It's hovering around 50C at 2Ghz.

 

On a side note, maybe its subjective, but in powersaving mode I find scrolling in Chrome a bit more jerky, compared to constant 4Ghz one. But, I can live with that. 

 

Especially while I'm waiting for USB flash drive to reinstall win10 and throw in linux in parallel.

 

Thanks again guys!

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50 Posts

04-02-2018

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Re: X1 Yoga 3rd gen. CPU frequency pegged at max

2018-04-09, 9:00 AM
What about sharing the knowledge with us?
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26 Posts

04-01-2018

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Re: X1 Yoga 3rd gen. CPU frequency pegged at max

2018-04-09, 13:27 PM
https://forums.lenovo.com/t5/ThinkPad-X-Series-Laptops/X1-Yoga-3rd-gen-CPU-frequency-pegged-at-max/m-p/4019778/highlight/true#M83513

Check out @marcuso reply. It helped me on x1c6
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6930 Posts

10-29-2009

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Re: X1 Yoga 3rd gen. CPU frequency pegged at max

2018-04-09, 13:30 PM

Solution is documented here:  https://support.lenovo.com/dk/en/solutions/ht506625

 

Original post follows:

 

As I wrote earlier, the factory preload intentionally sets the behavior where the idle CPU always runs at max turbo frequency, when AC power is attached.  The reason why this happens is due to customizations of the default "balanced" power plan.  Specifically, factory preload process executes the following commands:

 

   powercfg.exe /setACvalueindex OVERLAY_SCHEME_MAX SUB_PROCESSOR PERFEPP 0
   powercfg.exe /setACvalueindex SCHEME_BALANCED SUB_PROCESSOR PERFEPP 0
   powercfg.exe /setACvalueindex OVERLAY_SCHEME_MIN SUB_PROCESSOR PERFEPP 0

 

To avoid this behavior, you can execute the following commands:

 

   powercfg.exe /setACvalueindex OVERLAY_SCHEME_MAX SUB_PROCESSOR PERFEPP 0
   powercfg.exe /setACvalueindex SCHEME_BALANCED SUB_PROCESSOR PERFEPP 33
   powercfg.exe /setACvalueindex OVERLAY_SCHEME_MIN SUB_PROCESSOR PERFEPP 60

 

After executing these commands, the next time you change the power slider, then the CPU will idle according to the new setting (e.g. 0.86 GHz / 1.66 GHz / 4 GHz depending on the position of the power slider)

 

Please try this and let me know your feedback.

 

Admin note: I've marked this as the solution in order that people can find it easier through it becoming more prominent in the search function.  We can change the solutioned post at a later date when required.

0 person found this solution to be helpful.

This helped me too

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6930 Posts

10-29-2009

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Re: X1 Yoga 3rd gen. CPU frequency pegged at max

2018-04-09, 13:49 PM

I also want to tell you guys that we are still tuning fan behavior.  We know there is room for improvement.  The goal is:  Less on-off cycle, less fast spin up/down.  It will take some more time.

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