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Sunday, 28 January 2018

Lenovo ThinkPad T470s: Poor performance and slow CPU when on battery

Lenovo ThinkPad T470s poor performance and slow CPU when on battery.

CPU-Z shows a Core Speed value of around 400MHz.

This issue can be caused by incorrect values within the "Balanced" power plan.

To resolve:

Open Settings > System > Power & sleep and select Additional power settings
Alternatively open the classic Control Panel, choose Hardware and Sound and Power Options

If the Balanced power plan is active, choose Change plan settings and then Change advanced power settings

Scroll down to Processor power management and expand Maximum processor state

The value for On battery may be set to 5%.

Either change this to 100% or choose Restore plan defaults

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