[Solved by AI] cpupower - min freq 800 instead of 400

Valso · 2025-09-14 06:41:39

Edit: I didn't believe an AI could answer this question but apparently they've become quite tech savvy in a short period of time. It turns out that Intel have simply written random numbers wheh writing the CPU description on their website. Apparently this CPU doesn't support lower than 800 MHz.

I thought about asking a mod to delete this topic but then I decided to leave it in case someone else came across the same thing.
---------------------------------------
I have a question about cpupower. By specification on the intel's website, my cpu (i7-12700F) is supposed to have a minimum frequency of 400 MHz. However, if I set that in cpupower, it won't go below 800 MHz. I tried different versions of cpupower, including the latest one but no change. So: am I missing something here? I've disabled intel_pstate in order to avoid conflicts in frequency management but even that didn't change anything. Or better yet, here's the entire linux line in grub.cfg, so you can see what changes I've made (not all are about the CPU, though):

acpi=force acpi_enforce_resources=lax intel_pstate=disable transparent_hugepage=never systemd.unit=multi-user.target

For comparison, my previous CPU (i7-4770) had no problem with running at 400 MHz minimum frequency, so I don't get where this difference is coming from.

Last edited by Valso (2025-09-14 07:38:43)

seth · 2025-09-14 07:47:00

Or the AI is hallucinating…

lscpu
cpupower frequency-info

https://wiki.archlinux.org/title/CPU_fr … requencies

Valso · 2025-09-15 06:14:33

seth wrote:

Or the AI is hallucinating…

It's not.

cpupower-info says the minimum is 800 MHz.

seth · 2025-09-15 07:17:17

Have you tried whether the range changes between powersaving and performance mode?

Arch Linux

#1 2025-09-14 06:41:39

[Solved by AI] cpupower - min freq 800 instead of 400

#2 2025-09-14 07:47:00

Re: [Solved by AI] cpupower - min freq 800 instead of 400

#3 2025-09-15 06:14:33

Re: [Solved by AI] cpupower - min freq 800 instead of 400

#4 2025-09-15 07:17:17

Re: [Solved by AI] cpupower - min freq 800 instead of 400

Board footer