hi I have been asking around about if my psu would work with haswell some one said that I would have to disable the C6/C7 CPU power-saving states in your BIOS I have bought everything except my cpu and board the board I am buying is a asrock z87 extreme 6 or extreme 4 but i think the bios would be the same if you need it here is a link to the psu I have
http://www.newegg.com/Product/Product.aspx?Item=N82E16817194095
http://www.newegg.com/Product/Product.aspx?Item=N82E16817194095