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IdeaPad S340-14API Ryzen 5 3500U: lazy CPU and GPU frequency, FPS throttling

2019-12-31, 13:02 PM

Problem: CPU never reaches it's boost frequency (3.7 GHz), even while under stress the maximum it achieves is 3.2 GHz. GPU frequency throttles causing FPS drops and it also never reaches it's maximum frequency, even when playing games. Changing game's quality settings does not affect performance at all. BIOS settings are set to Performance mode. Max framebuffer size is 2 GB. The fan is barely reaching it's middle speed, never goes to maximum RPM. In Windows, the power settings were set to best performance and all power savings were disabled.


Tested on: Fedora Linux, Microsoft Windows 10


Checked with: HWMonitor, Linux console commands


Latest drivers: yes, BIOS updated to latest version


RAM: 12 GB / 4+8 GB dual channel, changing the amount of RAM doesn't affect my problem (the factory RAM was 4+4 GB dual channel).


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Re: IdeaPad S340-14API Ryzen 5 3500U: lazy CPU and GPU frequency, FPS throttling

2020-01-02, 14:44 PM



Hi NsNidPL,



Lenovo is committed to providing our customers with information to assist in utilizing the Linux operating system on various personal computing systems. The information below provides hardware compatibility for each Linux distribution.


Describes systems that support the Linux operating system on personal systems. For Lenovo Servers, click Server OS Support Center - Linux.


The following information is also available:

What does Linux certification mean for our customer? It means a system has been tested with a defined Linux distribution and most of the basic functions work (see the table below). Certification is part of our commitment to provide our customers with the information necessary to utilize the Linux operating system. Three major Linux code distributions have been identified for certification; Ubuntu, Redhat and SuSE.


Please check the link bellow, it will show if the device has been tested.





Hope this will address your query.




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