I found one they don't look to bad, if I’m honest I’d change to something else, I’ve got basically the same set up as you with amd and use a 550w seasonic, I wouldn't risk using the same psu again if you've had more than one die on you in case one day it takes out your motherboard with it, which im surprised it hasn't done already.
Also on ebauyer you can get antec psu testers about a tenner best thing I ever bought, or atleast get the guys at the shop to run it through a tester if they have one, it takes less than two seconds to test them.
They gone up in price, ebay got them cheap though.