Toshiba Qosmio X505 - Q870 freezing problem plz help

i left the laptop on 15% for half an hour with no results .. i told u its a freeze because the circle that spins for loading on 15% stops spining and i know if the laptop has froze or not by pressing the num lock button on the keyboard if it lights on or off i know the laptop is not frozen and this counts on opposite situation .

so when it did freeze on 15% the SP1 installation .. the circle stopped spinning and the num lock pressing thing do nth. so i realized its a freeze plus the laptop will get hot because the fans will work only on low state..

thanks a lot man i don't know how to thank you

I have A question about the issue i have

What if we changed the Processor and the freezing remained ?
Or Are you Sure 100% Its the processor ?
I don't want to keep changing parts without getting results you know its expensive thing to do ..

Another question ..

Now if we are sure its a processor thing then i must changed it right ..

My question is that Can i replace it with a bigger processor ?
like i have core i7 Q720 @1.6.

Can i change it with the new Core i7 2600k @3.4 and 8mb Cache ?
The one With the Sandy Bridge new thing ?

You Got My point right ?