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2 Posts

09-08-2020

Germany

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  • Message 11 of 203

Re:T14s extreme throttling (<0.5ghz instead of 3-4.5ghz)

2020-09-14, 9:17 AM
Edit: This fix only worked temporary, problems are coming up again. BIOS Version is 1.09
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9 Posts

09-09-2020

Slovenia

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Re:T14s extreme throttling (<0.5ghz instead of 3-4.5ghz)

2020-09-18, 8:31 AM

I have the exact same problem, but on a T14. Laptop will randomly throttle down to 400mhz and will remain there. Happens with very simple tasks, like 4k youtube video.

 

Had the laptop on service and they changed the motherboard, but everything is still the same.

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9 Posts

09-09-2020

Slovenia

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  • Message 13 of 203

Re:T14s extreme throttling (<0.5ghz instead of 3-4.5ghz)

2020-09-18, 13:05 PM

The previous generations also suffer from the same problem: https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T-series-Laptops/T490-MX250-Throttling-Problem/m-p/4465921?page=23

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17 Posts

07-21-2020

Germany

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  • Message 14 of 203

Re:T14s extreme throttling (<0.5ghz instead of 3-4.5ghz)

2020-09-20, 12:53 PM

I think I found a solution. Since Lenovo does not seem to be able to implement decent power/thermal management, you need to hack something together yourself.

 

DISCLAIMER: Use this solution at your own risk.

 

How it works:

  1. We fix the power limit throttling with ThrottleStop
  2. We fix the resulting thermal throttling with ThrottleStop

(there are other tools that can do the same, but I used this one)

 

Advantage: The problem is fixed, the CPU frequency is decent, and the performance seems ok.

Disadvantage: Your Notebook hull gets pretty warm, and this might fix stress your hardware a bit. Also, this fix is not 100% straight forward.

Alternatives: Buy another notebook and maybe avoid Lenovo for that.

Bottom Line: It is laughable that Lenovo writes such poor software and fails at providing any solution for any of the affected generations.

 

Details:

1. Download and install ThrottleStop. You can use online tutorials if you want further details on how to use that tool.

2. On the main screen first select one of the four profiles you want to use for this fix (I used no. 4). Remember which profile you used.

3. Then make sure to configure it like this:

4. Now we are going to configure some stuff in the submenus: Options (bottom left), as well as FIVR, TPL (bottom center)

5. Open options and configure as in the image below but keep the following in mind:

For the default profile settings set the AC profile to your selected profile from earlier (1-4). The battery profile should be a different one if you don't want this fix active on battery mode.

Set both to your selected profile if you want the fix always active.

PROCHOT offset of 10 means thermal throttling starts at 90 degrees, which means the notebook hull will be really warm sometimes. An offset of 20 is a less agressive options aggressive.

The PROCHOT setting reduces thermal throttling by allowing higher temperatures.

 

6. After applying the previous settings open up FIVR on the main screen, then configure as follows:

Keep in mind that you need to configure the center column twice, once for CPU core and once for CPU cache (this undervolts the CPU).

7. Now also configure the middle column for Intel GPU and iGPU unslice like this (this undervolts the GPU):

8. After applying these changes open up the TPL menu on the main screen and configure as follows (this reduces power limit throttling):

9. Apply these settings and then make sure to always have ThrottleStop active in order to have the fix working at all times. If it is not active the Lenovo software can interfere and cause the problems we want to fix. Under Windows 10 you can use the task scheduling to always start ThrottleStop when booting your notebook. Autostart or manual starting might work too.

10. Think about disabling (and preventing autostart) the "Lenovo Intelligent Thermal Solution" service just to be safe. But I am not sure if that helps or does not matter.

 

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9 Posts

09-09-2020

Slovenia

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  • Message 15 of 203

Re:T14s extreme throttling (<0.5ghz instead of 3-4.5ghz)

2020-09-23, 8:54 AM

I tried the solution (without step 10) and achieved decent performance (even tried Warzone). In the 1 hour I spent testing it it didn't throttle down, but I an using tpfancontrol to force higher fan speeds.

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4 Posts

12-10-2020

United States of America

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  • Message 16 of 203

Re:T14s extreme throttling (<0.5ghz instead of 3-4.5ghz)

2020-12-15, 20:01 PM

I am experiencing these same symptoms on a P14s Gen 1 laptop.  My CPU scales down to 400MHz whenever I do almost anything, such as opening a new browser tab, sending a Slack message, or sometimes just editing a file.  My machine should be capable of up to 4.9 GHz.  If I reboot, things go back to normal.

I can go as long as a day without this happening, like I did yesterday after a reboot.  This morning things were normal until I brought up Zoom.  After that, the issue presented itself again.

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17 Posts

07-21-2020

Germany

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  • Message 17 of 203

Re:T14s extreme throttling (<0.5ghz instead of 3-4.5ghz)

2020-12-16, 7:08 AM

That sounds exactly like the issues I had. The reason why Zoom triggers it is that GPU load seems to trigger the power limit throttling.

Have you tried my solution above? It has worked for other users as well!

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2 Posts

12-26-2020

Sweden

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  • Message 18 of 203

Re:T14s extreme throttling (<0.5ghz instead of 3-4.5ghz)

2021-01-04, 18:43 PM

I have this problem too, on a Thinkpad T14 (intel).

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1 Posts

01-25-2021

Denmark

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  • Message 19 of 203

Re:T14s extreme throttling (<0.5ghz instead of 3-4.5ghz)

2021-01-25, 11:46 AM

I have the exact same issue on a new T14 Gen1, and I am getting so frustrated!

I switched from a T460s which worked fine, except it was getting old, and had to be replaced.

I have always been a big fan on the Thinkpad's, but getting a brand new one and then experiencing this is REALLY frustrating.

I also see the 0.39GHz just being away for 5 minutes.

It would be nice with a real solution. When BIOS is set to "Maximum Performance" it should NOT throttle down at all.

I have tried to disable CPU power management completely, but don't know if it works.

But really annoying that suddenly everything just runs slow.

 

On a side note, are anyone experiencing poor camera quality? It sucks.

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6 Posts

12-29-2020

Slovenia

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  • Message 20 of 203

Re:T14s extreme throttling (<0.5ghz instead of 3-4.5ghz)

2021-01-25, 15:25 PM

Have the same problem with my T14 Gen1 (Intel CPU).

For me it was an issue on the power AC and being away for a period of time. After dropping frequency I usually disconnect the dock or power supply and after a few moments it returns to normal.

It all started with BIOS 1.16 and it is still the same with 1.17. I have reinstalled the operating system, but the problem is still present. Now I will try with ThrottleUP, to see if the problem is still present. Would be really nice that Lenovo addresses and fixes this problem.

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