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well according to the specs http://www.hipergroup.com/4s525s.pdf
it is a compliant supply as far as it goes, having both a 24 pin main power connector
and a PCI-E 6 pin aux Video Card connector
but it has only one of those so if the cards each require one....
also it has 20A on the +12V1 rail and 17A on the +12V2 rail
if that will suffice for your config at your likely operation temperature