So I built this system a year ago and decided to just use the psu that came with my case, a no-name 420 watt. Now it's starting to scare me because it's not very stable, i'm watching cpu-z and my voltage is supposed to be at 1.35, it's jumping randomely from 1.344 to 1.365. Seeing how I'm trying to overclock this doesn't seem good at all. So what are some recommendations for a good psu, and i'm also thinkin of upgrading my gpu so keep that in mind for power.