But it's Corsair.
I've recently heard many people having issues with Corsairs within the past couple of years. Some people reported lower quality parts in their newer PSU's. Not sure about quality, that's more or less hearsay. At least I've seen members at Bitcointalk and BitsBeTrippin reporting high failure rates.
the list of atx company that had failed psus
rosewill
seasonic
antec
evga
fractal
notice the major company I left off. I won't write the name as I do not want to jinx myself.
Atx psu's do break with 24/7 use