CPU which refuses to reduce CPU frequency

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sangorys
Level 1
Level 1
Posts: 9
Joined: Sat Jul 20, 2013 11:29 am

CPU which refuses to reduce CPU frequency

Post by sangorys » Mon Sep 09, 2019 4:16 pm

Hello,

I have just spent 3 hours and did a lot of tests : you are my last chance. :)

My CPU works at 3.4 GHz and does not want to be lower whatever I do !!!

/sys/devices/system/cpu/intel_pstate/no_turbo = 1
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor = powersave
/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver = intel_pstate
/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq = 2700000

So it means that turbo mode is off. Max frequence is 2.7 GHz.

But /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq = 3535177 (in practice, it is between 3400000 and 3600000)


What is wrong ? Please help me, you are my last chance !

For your info, I tried with lapmode_mode and TLP. Same behavior :oops:


My computer :
Lenovo Thinkpad W530
Last edited by sangorys on Fri Sep 13, 2019 6:59 am, edited 1 time in total.

blueocean
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Posts: 132
Joined: Sun Jul 08, 2018 11:50 pm

Re: CPU which refuses to reduce CPU frequency

Post by blueocean » Thu Sep 12, 2019 2:55 pm

What machine make and model is this. Have you updated to the newest motherboard firmware from the manufacturer's download site?
To mark this issue solved, go to your original 1st post and click the edit pencil and add [Solved] at the beginning of the title and click Submit.

gittiest personITW
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Posts: 402
Joined: Tue May 28, 2019 4:27 pm

Re: CPU which refuses to reduce CPU frequency

Post by gittiest personITW » Thu Sep 12, 2019 3:29 pm

Hi,
I had the same problem and had to go into BIOS/UEFI to alter the turbo setting. (X470)

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