How to confirm if undervolt is working in Ubuntu?

Question

I have managed to under-volt my Intel 8750H by 150 mV using https://github.com/kitsunyan/intel-undervolt. But I am not sure if the settings are really applied.

Answer 1

The readme provided explains it:

Run intel-undervolt read to read current values and intel-undervolt apply to apply configured values.

The output will show applied settings. Run intel-undervolt read first to check, then intel-undervolt apply, followed by another intel-undervolt read to verify that new settings is in fact applied.