I wish I could get my I7's cores working for me....One could do the dishes, the other to clean up, another to do my work, and one to supervise them all.
Hmm yea LOL.
Can we get your full system specifications?
And what do you mean by 6 cores working? Do you want to stress test your CPU?
Google Prime95 and do a test for 2 hours - check your CPU temps right afterwards.