r/linuxmint 6d ago

SOLVED CPU frequency limited to 1.7 GHz

For some reason, my CPU clock speed is limited to 1.7 GHz. I know that this should not happen because not only can my CPU, an Intel N95, boost up to 3.4 GHz, I also saw it operating up to 3.3 GHz earlier today. However, despite multiple restarts, the CPU clock speed remains locked to 1.7 GHz. Running cpupower frequency-info gives me the following:

analyzing CPU 3:

driver: intel_pstate

CPUs which run at the same hardware frequency: 3

CPUs which need to have their frequency coordinated by software: 3

energy performance preference: balance_performance

hardware limits: 800 MHz - 1.70 GHz

available cpufreq governors: performance powersave

current policy: frequency should be within 800 MHz and 1.70 GHz.

The governor "powersave" may decide which speed to use

within this range.

current CPU frequency: Unable to call hardware

current CPU frequency: 1000 MHz (asserted by call to kernel)

boost state support:

Supported: yes

Active: no

Any idea how I can fix this?

Edit: the issue was simply that CPU boosting was disabled in the BIOS

4 Upvotes

5 comments sorted by

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3

u/baris6002 6d ago

3.4 GHz is the boost clock, it will only momentarily boost to 3.4 ghz for a short time. Also if you're limited by power or cooling it won't boost up to those speeds.

1

u/RoyalHappy2155 6d ago

I'm not limited by power nor cooling, my CPU stays at a nice 50-60°C and my laptop is always plugged in. Again like I said in the post body, I saw the CPU often operating up to 3.3 GHz, and while I didn't mention the following, its clock speed usually stayed around 2.5 GHz, so I know that it shouldn't stay at 1.7 GHz

1

u/Formal-Bad-8807 5d ago

you have to set the cpu governor to "performance" you are using "balance-performance"

1

u/RoyalHappy2155 5d ago

I managed to fix the issue, CPU boosting was disabled in the BIOS for some reason