how you overclocked your cpu ?

Hi MAFRI, sorry for the late answer. The tool I used for this result is MSI Afterburner, but it's not the only one you can use.

Nice Stephan

i will ask,how you overclock your cpu i5?

The CPU is not overclocked, according to my knowledge I would have to hardmod the clock generator. What you see on the screenshot is just the highest multiplier available when turbo mode is activated (=default). That's the reason for several validations and single-threaded benchmark runs done with i5-520M @ 2926,x MHz: http://www.hwbot.org/hardware/processor/core_i5_520m?tab=2drankings