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threethreezeros
Fanfold Paper
Posts: 4
Registered: ‎12-09-2018
Location: AT
Views: 439
Message 1 of 8

ideapad 330s 15ikb 1050 - CPU stuck at 400mhz while charging.

Well, the title says it.

You can't work with it while charging, it's frustrating.

 

Clean install of all drivers and updated + Edited Power-Plan. Nothing worked.

 

 

lancaster
Paper Tape
Posts: 2
Registered: ‎01-21-2019
Location: UA
Views: 362
Message 2 of 8

Re: ideapad 330s 15ikb 1050 - CPU stuck at 400mhz while charging.

Are there any updates of your problem?
Social Support Agent
Social Support Agent
Posts: 896
Registered: ‎08-02-2018
Location: US
Views: 353
Message 3 of 8

Re: ideapad 330s 15ikb 1050 - CPU stuck at 400mhz while charging.

Hi Threethreezeros! Welcome to our forums community. Could you provide to us a screenshot of the CPU usage and the Processes tab under the task manager while it is charging. Let us know.



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threethreezeros
Fanfold Paper
Posts: 4
Registered: ‎12-09-2018
Location: AT
Views: 329
Message 4 of 8

Re: ideapad 330s 15ikb 1050 - CPU stuck at 400mhz while charging.

I managed to get the Notebook to 1,5 GhZ with the Windows Power Managment. Allthough I want to use the Turbo Boost which can be achieved too with Intel XTU, but the Notebook keeps going back to 1.5 GhZ which is really annoying and laggy.

 

I already know that the only solution to this problem is to deactivate this behavior on the BIOS, which suddenly isn't available for this model.

 

Conclusion: The 330s power throttles without a reason.

JS33
What's DOS?
Posts: 2
Registered: ‎04-18-2019
Location: DE
Views: 170
Message 5 of 8

Re: ideapad 330s 15ikb 1050 - CPU stuck at 400mhz while charging.

I have the same issue. 0,4 GHz while charging, everythings fine after its finished. I've installed the latest BIOS Update for 330s 15ikb and the power management driver as well, nothings's changed.

 

Can you please give an update if this issue will ever be fixed? Lenovo seems to have a history with Battery controller issues..

JURRy_
Fanfold Paper
Posts: 11
Registered: ‎08-29-2018
Location: CZ
Views: 148
Message 6 of 8

Re: ideapad 330s 15ikb 1050 - CPU stuck at 400mhz while charging.

Same issue, :/ Only Throttlestop app help and has to be always runing to unlock CPU stuck. Big fail from Lenovo.
lancaster
Paper Tape
Posts: 2
Registered: ‎01-21-2019
Location: UA
Views: 143
Message 7 of 8

Re: ideapad 330s 15ikb 1050 - CPU stuck at 400mhz while charging.

I think it's time to write a comment here.

 

I thought that this problem (when cpu is throttled to 400mhz) is kind of serious and I contacted the service center. After 3 weeks of repair and 3 times of motherboard replacements, engineers in service center decided to contact Chinese engineers of Lenovo. They said that it is totally normal behaviour of controller that makes CPU throttle to 400mhz because battery is charged withRapid-Charge technology with high voltage currency and that is why CPU must be throttled.

 

So, it's not a bug, it's feature, enjoy! And such as it is feature, I suppose it will never be fixed.

JS33
What's DOS?
Posts: 2
Registered: ‎04-18-2019
Location: DE
Views: 115
Message 8 of 8

Re: ideapad 330s 15ikb 1050 - CPU stuck at 400mhz while charging.

This actually 'worked' for me!

 

I've downloaded the Lenovo Vantage App (yikes) and disabled rapid charging. This seems to prevent throttling while charging.

 

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