fps dips caused by what?

jodon1234

Honorable
Feb 7, 2014
3
0
10,510
When use my pc, after about an hour of gaming my framerate will dip for about ten seconds then return to normal. This happens about every 30 seconds. I am either thinking is my cpu cooler, which is the stock fx-8350 cooler, or the psu isn't powerful enough.
I have a 680 watt psu
660ti oc edition
8gb ram
Fx-8350
1tb hdd
 

jodon1234

Honorable
Feb 7, 2014
3
0
10,510
Checked processes and nothing too intensive, all resources below 50% in game and the dips are still happening, pc seems to get louder when the dips happen, could just be my imagination.