Intel(R) Core(TM) i7 CPU 950 @ 3.07GHz Core Use troubleshoot

[FAnanastasiou]

A few months ago i have had a problem with my computer Stuttering sounds and images and my cpu would sporadically raise and shoot up when the stuttering occurred. I had downloaded speed fan in order to see the temperature and overview what the cores were doing.



Above is a link where i had brought this situation to windows7 forum.
(Cant post link as guest, but if u type in "Intel(R) Core(TM) i7 CPU 950 @ 3.07GHz (8 CPUs) stutters" into google, the forum post should be the 3rd link.

At first i thought the problem was itunes , because when i turned it on my cpu would shoot up to 40-50% usage. i had researched and found out i had to type a code in the cmd prompt and now it only uses 30% and the stuttering usually never happens unless im playing a video game and i have facebook up or other big processes. (So itunes cannot be the problem)

I dont understand why my computer has 8 cores yet it only uses 2, and it switches between 2 of the 8 cores.

Any possible explanation or solution for this would be greatly appreciated.

Thank you for talking your time reading this

[FAnastasiou]

Sorry for the double post, couldn't find an edit button. i'm currently running speedfan, and Microsoft word, disk defrag, mozilla, itunes and McAfee are the major rograms running and i have 3-5 cores running, but 2 of them are running at 100% while the other 2 or 3 run at such a low rate and the other 3 are just empty and not helping out. how can i relieve the pressure being done to the cores?