i5 4670k overclock is changing ram speeds

ttreaders1

Prominent
Oct 26, 2017
3
0
510
Hey guys, I'm overclocking my i5 4670k to 4.0 GHz.

Is it normal that my Memory's NB Frequency goes from 798.1 MHz with stock settings to a NB Frequency value of 3391.9 MHz as soon as I set CPU Multiplier to 40x? Seems odd to me.
 


select the profile in BIOS to XMP
i have oc my same CPU to 4.2
 

ttreaders1

Prominent
Oct 26, 2017
3
0
510

Just had a look at that in the bios - all it seems to do is change the voltage of the memory? The multiplier for the memory stays on auto.

Yeah, just checked - with XMP on the NB frequency is still 3391.9