Can't change CPU speed

VansFannel

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Feb 17, 2015
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I have a Gigabyte Z97X-GAMMING 7 motherboard with an Intel Core i7 4790K and Crucial Ballistix 16GB kit (8GBx2) DDR3 PC3-12800 Unbuffered NON-ECC 1.5V 1024Meg x 64 (model BLT2CP8G3D1608DT1TX0CEU) RAM memory.

On the bios, if I set memory frequency to 1600, CPU clock sets to 4.4 GHz. Why this happens?

I have changed Memory Frequency to 1333 but CPU still has 4.4 GHz. And I can't change it.

I have reset the bios, load defaults, change frequency on Gigabyte's Easy Tune program, and always the same.

I've taken this two images to show the problem.

On this one, you can see that CPU speed is set to 4.00 GHz:
IMG_0344_cleaned.jpg


But, in this one, the frequency is still 4.39GHz:
IMG_0345_cleaned.jpg


I took these photos after changing the configuration, save the changes and reboot.

How can I change it?