So I'm not entirely sure about connecting my new GPU I bought, because my PSU (Corsair CX500M) has one port for delivering power for the GPU and the cable splits into two 6+2 ends (no, I don't mean the extra two pins making it an 8 pin connector, but rather it has two 6+2 ends). So can I safely use the other 6+2 end for the 8 pin slot the GPU has and leave the other 6+2 end of the cable unused? Thank you in advance.