Agree with "j3ster"......Apart from that, OP your current PSU isn't the very best to be used on a gaming rig. I would surely replace this unit, and grab some other high quality PSU from some other brand, instead of Andyson. Your current power supply could also be the culprit here, though I can't comment on build quality, reliability and efficiency of this unit, since I'm not that much familiar with this brand.
But, it would be nice if you can grab some other PSU, as it would be beneficial in the long run. Just my thoughts...
Also, if I'm not mistaken, most of the Raidmax's PSU product line is made by Andyson OEM (almost 80% I think), and we all know that Raidmax has a horrible reputation, and it also it falls under the lower tier category on the PSU hierarchy list.....Not a very trustworthy brand.