CPU speed changing

#1
I NEED SOME HELP!!

ok i was directed to this part of the forum because my cpu speed keeps changing.

my cpu speed is at around 999 mhz and once i open a game it goes up to 3500 mhz.
which makes my display driver stop responding, it goes to a blue screen then black and then goes back to normal.

what can i do to fix this?

this is where i first posted my problem : http://windows7forums.com/blue-screen-death-bsod/92049-b-s-o-d-not.html#post290980
 


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