Help with Asus Z87-K + i5 4670K

zombie777

Honorable
Oct 3, 2013
1
0
10,510
Good evening, I need please if you give me a hand with this OC.
What happens to me is this: set up the mother with an OC of 4.0 GHz and then save it and return to windows, not what I have at that frequency, but varies as if a configuration in the BIOS to handle the frequency to its will, imagine it must be some of that, but can not find the option to remove it. From already thank you very much.
I leave images of the settings in the bios, and the cpu-z and coretemp where you see the frequencies.

i5 4670K + Hyper 212 Plus
Asus Z87-K Bios version 0309
Kingston Hyperx Black DDR3 1600 2x4 9-9-9-27

 
HI,

The CPU will decrease it's frequency (clock speed) and voltage when it's not under load (when it's idle) in order to save power and reduce heat output.

You can disable this functionality by disabling the CPU power saving features in the BIOS (C states, C1E....)