you are using the right 8pin, i.e. the atx aux, and not the pci-e 8 pin?
Yeah I'm certain it's the right cable, just unplugged the CPU connector and tried to plug it into one of the cards, does not go in at all, no matter how much I try, so defiantly right. Thanks for the heads up though!!!!
Just also want to give a big thanks to everyone that's replied too!