Anyone ever seen CPU-Z do this? It's varying. For the most part it is staying at my normal 46x100MHz=4.6GHz overclock, with 1.42v, varying.
I just noticed it was doing this - computer has been up calmly for the past 3 days and 7 hours.
EDIT: Closing and reopening fixed it - may this be here for any others whoever have the issue, your CPU is likely fine. ^.^