Hi there mates. Couple months ago I bought a seasonic X660 Gold thinking Id be set for life, as it got amazing reviews and everybody told me that I should go with it. 2 months later it just failed. My house is new, no problems with the electrical system. No lightenings or anything similar. I left the pc on at night though but that shouldnt be a problem at all, as my old corsair tx650 had done it for 2 years. Now I contact the store, they replaced the PSU for me. Same model, same everything. And for my surprise, IT FAILED IN 2 DAYS! First the pc began to reset itself after every 3 hours. I couldnt turn it back on unless I pressed the switch 2 times in the back of the PSU. Then the pc wouldnt start at all, fans would spin for a brief moment and die. I tested the PSU with a paper clip and in fact, it didnt work!!! Now im back using a mini cheap corsair CX500! And yes, it's holding tougher all night long. BUT I really gotta know whats happening with the Seasonic. I paid a lot for it and something has to be done. My build is the following: mono asus p8z77-m, 16gb ram corsair, i3770k OCed, hyper 212 cooler, couple HDDs, 7970 vapor-x. Do you guys think it's just bad luck or defective batch? Or maybe it's a kind of incompatibility between my system and the PSU? Thank you!