When you try to do the offset overclocking, what are your other settings in the BIOS? What power plan do you have set in OS? You will need to have all the Intel power saving stuff enabled. In OS you should select the default option.
For example I use the +.0300 in offset.
Lets see what happens if we do this, F5 to set defaults. Then navigate to the voltage and key in the + 0.0300 offset.
What do you get in OS when you open CPUz?
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