I have this PSU: http://www.newegg.com/Product/Product.aspx?Item=N82E16817438034 . It comes with cables that have 2 8-pin connectors on them. Will using just one cable (with 2 connectors) to power this http://www.newegg.com/Product/Product.aspx?Item=N82E16814125787 be any better or worse than two separate 8-pin connector cables? I have never had a card with multiple connectors. I plan on overclocking it a fair amount.