AI7 vcore

im getting fluctuation with the vcore and vdimm vcore goes from 1.55 down to1.52 not under load vdimm goes from 2.93 down to 2.91 is this normal?? ive tried a differnt PS and still the same thing im running a enligh 500 watt psu all other voltages seem ok

all p4's vcore drop underload its normal