Limit cpu frequency

hello.how can i limit core i5 cpu frequency to half?seems tlp intel p-state option or cpu-freq indicator dosent works.
i want limit it to 1.6ghz from 3.2ghz
im new to linux.sorry me.

Have you checked your BIOS?

Maybe it has an option to limit your CPU frequency.

no.there is not options for this.

What’s the output of $ cpupower frequency-info?

This is a few years old, but may still work.

scaling driver in use is intel_pstate