I have a cooler master 800w silent pro gold and plan to buy an Asus r9 290 Dc2oc that requires 6+8pin pcie power. I've never installed a gpu and need to know what cables i should buy to connect it. I dont have cables from the psu and the gpu im buying is used and wont have cables. If you could leave links for cables, that would be awesome. The problem is the PSU doesn't have any 8pin slots, only two 6 pins.