I thought I had a 600w PSU but it turns out I was misremembering and what I have is a Corsair gs 500w PSU. My concern is that this PSU hasn't been certified for the new haswell processors, that I can find and I just bough the i5 4670k. I know next to nothing about hardware. Is this a concern? Would it be better to spend another 80-100 on a PSU that has been certified?