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363 Posts

11-26-2019

Hong Kong S.A.R of China

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  • Message 21 of 67

Re:Lenovo X1 Carbon Gen 9 Throttling Issues

2021-04-29, 6:44 AM

The BIOS 1.24 readme mentioned

Updated the CPU microcode

But this issue is not mentioned in the problem fixed section. So I don't expect this version of the BIOS will actually do anything.

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6 Posts

04-28-2021

Taiwan,China

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  • Message 22 of 67

Re:Lenovo X1 Carbon Gen 9 Throttling Issues

2021-04-29, 6:50 AM

I'm sure prochoot fix works. Just try it out. It takes 3 minutes to install and change prochoot offset in options of throttlestop. And you lose maybe 0.5 percent performsnce with 97 vs 100 prochoot, but solve throttling

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363 Posts

11-26-2019

Hong Kong S.A.R of China

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  • Message 23 of 67

Re:Lenovo X1 Carbon Gen 9 Throttling Issues

2021-04-29, 6:57 AM

I could give it a try, but this is not the way it should be handled. This is a premium device and people pay good money for it. It is unacceptable for it to rely on 3rd party software to run "premium", not to mention it is still a question of whether this will work.

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17 Posts

03-23-2015

Brazil

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  • Message 24 of 67

Re:Lenovo X1 Carbon Gen 9 Throttling Issues

2021-04-29, 7:48 AM

Agreed, this is not right for such a premium/expensive product.

 

Lenovo needs to take note of these issues and provide an official solution ASAP.  

 

I do like the hardware (which is a legacy of the IBM days) but their support and technical knowledge seems to have taken a sharp downturn.  This might be my last Chinese tech product at this rate.

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6 Posts

04-28-2021

Taiwan,China

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  • Message 25 of 67

Re:Lenovo X1 Carbon Gen 9 Throttling Issues

2021-04-29, 7:54 AM
The thing is, most likely lenovo will have to fix it exactly by lowering prochoot to 97 degrees. Setting 25 watts and hope it doesn't reach 101 is not a real solution
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10 Posts

04-22-2021

Germany

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  • Message 26 of 67

Re:Lenovo X1 Carbon Gen 9 Throttling Issues

2021-04-29, 8:47 AM

@Lorenzo_Lenovo any view on that? Is there something planned from Lenovo to mitigate that throttling issue? If we all have to face this problem then the chance to switch to another manufacturer are quite high.

 

Would really appreciate your feedback here.

 

Thanks.

 

Best regards

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6 Posts

04-28-2021

United States of America

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  • Message 27 of 67

Re:Lenovo X1 Carbon Gen 9 Throttling Issues

2021-04-29, 20:49 PM

Notebookcheck just published their X1 Yoga Gen 6 review.

 

In the delivery state, the performance fluctuated even more extremely and after an update to BIOS 1.24, the performance has already become significantly more stable and better. We have therefore repeated all measurements and benchmarks with the new BIOS version.

 

 

Prime95+Furmark - According to them, BIOS v1.24 stabilizes the CPU at 25W after ~15 minutes

Before the BIOS update, the power consumption in the stress test fluctuated strongly, but after the update to 1.24 it stabilizes after a few minutes but at 25 watts. That's enough for 4x 1.8 GHz for the processor and 760 MHz for the built-in graphics card. 

 

Witcher 3 - Throttling behavior still exists

The TDP breaks down to 6 watts for about every 30 seconds for a few seconds, which then leads to the FPS break-ins. However, we expect this issue to be resolved with an upcoming BIOS update. Once this has happened, we will also update this article.

 

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1665 Posts

01-08-2021

Philippines

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  • Message 28 of 67

Re:Lenovo X1 Carbon Gen 9 Throttling Issues

2021-05-03, 20:55 PM

Hello everyone,

 


Greetings

My apologies for the delayed response.

 

The system is behaving as designed since it is intended not for gaming so it may throttle down as safety buffer.
As long as the settings are within the recommended values.

 

 

Best regards, 
Lorenzo_Lenovo



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10 Posts

04-22-2021

Germany

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  • Message 29 of 67

Re:Lenovo X1 Carbon Gen 9 Throttling Issues

2021-05-03, 21:04 PM

@Lorenzo_Lenovo  What do you mean? The systems is throttling in such a way that you can not really use it any more.. and i am not talking gaming only .. anything that pushes on CPU and iGPU will cause to throttle it so that is not usable for the task that you want to perform.. 

 

The CPU throttling behavior is really bad compared to what i am experiencing on my X280 with an i7 .. here i do not have such a behavior.. it throttles but you can still perform your tasks / works without stuttering.. 

 

So if it is really the case as described by you i have definitely switch to another manufacturer.. i will test it with the replacement Lenovo is sending me ... but if it is not going to perform better .. i have to switch... sorry that is not what you want to have in a premium product like the X1 Carbon....

 

Best

mcjazzman

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6 Posts

04-28-2021

United States of America

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  • Message 30 of 67

Re:Lenovo X1 Carbon Gen 9 Throttling Issues

2021-05-03, 21:37 PM

@ Lorenzo_Lenovo wrote:

The system is behaving as designed

 

I really hope throttling down to 6 watts every 30 seconds during load is not intended behavior. And it doesn't seem to be, since apparently, BIOS updates are beginning to mitigate this behavior, and demonstrating that the laptop can clearly handle sustained 25 watts. If you're cooking food and the heat is too high that it's burning the food, is the solution to alternate between no heat and max heat or is the solution just to lower the heat?

 

If you believe this is intended behavior, then is NotebookCheck wrong in saying the following in their review?

we expect this issue to be resolved with an upcoming BIOS update.

 

Are you saying we shouldn't expect Lenovo BIOS engineers to fix this bug?

 

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