it may do a current reading, your cpu probily has a power save feature, so when its not needed it under clocke. get occt http://www.ocbase.com/ that will stress it and give you a reading
Yup, you have C1E enabled in the Bios. It turns down your multiplier when you are not using all of your processor. It does slow things down though, and it is quite easy to disable in your bios. Check your mobo manual to see how to turn it off.
neather have i, but i would leave the voltage alone. i have a e2160 orig 1.6 ghz overclocked to 3.2 ghz and i still have the motherboard controle the voltage. just dont go above 1.5 i think it is