I have seen CPU-Z screenshots that show the Vcore at over 1.2V. I have overclocked my N10J to 2GHz but on 1.075V. I tried to go to 2.1GHz, but it starts to get errors in Prime95.
How do I raise my Vcore? I didn't see any options in the BIOS. Is it some power option in Windows? I am using Windows 7.
Several of us have looked into this. I don't think anyone has found a way as of yet.
As I understand it 1.075V is normal. There was an older version of CPU-Z that was miscorrectly showing voltage values so this is probably how someone got a screen shot showing 1.2V. That being said there does seem to be some differences between various N10 voltages. Some have significantly lower values and then have quite a difficult time overclocking. It seems to be a hardware thing though and not something that can be changed (at least easily).
Good luck though. I'd be interested if you have an answer to this. I can only get my N10 to 1.90GHz. Mine doesn't give errors though it just locks up the keyboard, mousepad, and any USB mouse.