Dude, take the replacement PSU (whatever the hell it is they are going to give you) post it in for sale and buy a different brand PSU.
Corsair whores their products out to anybody and everybody. They have PSU's made by 6 different OEM's from CWT to Seasonic, and without THE INFORMATION BELOW you'll never know what you're actually getting. It's also worth noting not too long ago, CWT (Corsair's primary OEM) was pretty low quality, nearly as bad as Etasis and Andyson (Ultra PSU's.)
Stick with something concrete and you'll have it forever.
http://www.realhardtechx.com/index_archivos/Page447.htm
Quality OEM's are Seasonic, Enhance, and Delta. HEC and FSP quality all over the board but most of them these days are above average...but a decade ago HEC and FSP made some doozies. Most companies have improved, but I still consider CWT, the largest OEM to Corsair, very middling.