I7 920 Core Voltage fluxing issue? yae or nae

Well after reading up on useful info on the forum and grabbing some nifty item's I tried CPU-Z and notices my Core Voltage fluxes from 1.080 v ~ 1.112~1.232 off and on ... is this normal or some thing I need to worry about?
also NB Frequency @ 2812.9~28214.4 Mhz , Dram Freq - 703.2~703.5 Mhz
I'll screen shoot if you like but info the same
Thanks for your time and help
Mrb

The fluctuations in CPU-Z are not all that uncommon. Many times, it is caused by the action of the power saving features in the system.

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