Core speed fluctuating

[Deepcuts]

Hello

I just bought a Hero mainboard.
I am not an overclocker so I just setup my i7 4770K CPU to turbo speed only (3.9 Ghz)
I have a question please:
while doing normal work, no fancy stuff like benchmarks or heavy duty processing, I can see my core speed and voltage fluctuating a LOT.
It is almost like a sound meter in a disco 🙂

A little video regarding my question:

The question: It is normal for the cores and voltage to fluctuate like that?

Thank you.

[HiVizMan]

It all depends what was being done in the back ground I guess and also how you set your OC. I would personally have just left it at defaults for what your needs are.

[Myk_SilentShado]

It is normal mate, it fluctuates depending on the load you put on your CPU. And since it is fluctuating, do you have the power plan set to balanced? @Viz, he did set it at defaults, Speed Step etc for boost are on to get 3.9 😉

[Deepcuts]

Thank you for responses.
All settings are set to default.
My power plan is set to High performance.

I just asked to see if the fluctuation is normal. I would hate to fry my board because of some setting(s).

[HiVizMan]

High performance will lock the multi to the max. Please sent balanced and see how it goes.

[Deepcuts]

I have set minimum CPU speed to 5% in Windows power options.
Will try to set it to 100% and see.

[Deepcuts]

Indeed, setting my power plan to use 100% CPU at minimum "fixed" the fluctuation.
I was under the impression that the BIOS will handle that and not a mere Windows setting 🙂

Thank you.