VCore jumping?

[LiquidX]

Looking at ASUS probe and CPUZ I notice my voltage is juming from 1.456 to 1.472 every fre seconds. No OC at all except I have changed my ram timings from the default 3. to 2.5. This is Enermax 430 PSU. Should this be and if not what could be causing it?

 

[Viper96720]

I doubt that's something to worry about. If it was jumping 1.5v to 2.0v then that would be different.