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7 Posts

08-18-2019

NL

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IdeaPad S340-15IWL 81N8 : CPU consistently throttled at exactly 88% in multiple benchmarks (on AC)?

2019-08-18, 19:55 PM

When I ran UserBenchmark on my new Lenovo to test if it works correctly, I got the notice that:

 

"CPU throttled at 88% by Windows. Ensure maximum processor state is set to 100% via Settings > System > Power & sleep > Additional power settings > Change plan settings > Change advanced power settings > Processor power management > Maximum processor state. "

 

https://www.userbenchmark.com/UserRun/19397536

 

However, that setting is already at 100%.

 

I reset the power plan settings to be sure, but it did not work: I ran the test two more times and each time the CPU throttled at exactly 88% again:

https://www.userbenchmark.com/UserRun/19397664

https://www.userbenchmark.com/UserRun/19397929

 

Now, obviously the Intel Core i5-8265U is still not a slow CPU but I think there is a bug somewhere.

 

EDIT: Some other topics suggested that Intelligent Cooling could have something to do with it. I disabled it, but it didn't matter: https://www.userbenchmark.com/UserRun/19400401

 

The laptop was connected to power in all benchmarks and is running the latest 2.04 BIOS.

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7 Posts

08-18-2019

NL

14 Signins

117 Page Views

  • Posts: 7
  • Registered: ‎08-18-2019
  • Location: NL
  • Views: 117
  • Message 2 of 2

Re: IdeaPad S340-15IWL 81N8 : CPU consistently throttled at exactly 88% in multiple benchmarks (on A

2019-09-11, 14:24 PM

On 2 September a new version of Lenovo Intelligent Thermal Solution Driver was released:

 

https://support.lenovo.com/nl/nl/downloads/DS539038

 

https://support.lenovo.com/nl/nl/downloads/DS541239

 

https://support.lenovo.com/nl/nl/downloads/DS539164

 

But it doesn't include any Readme or Changelog.

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