Every now and then my new pc keeps freezing for 1-5 mins. I wont be able to access anything for that duration and then it will return back to normal. I'm lost on whats the problem and how to fix it. I heard that PSU or Memory could be the problem, so here's my build list. http://pcpartpicker.com/p/vMGgGX . (dont worry about the components listed for the price, it was initially supposed to be a 500 budget with a monitor, but i was given 500 as a last minute gift after ordering half the stuff)