My mobo is a Gigabyte X58A-UD9.My psu is a PC&Power Cooling 1200w Esa.My question is the mobo has 2-8 pin power supply connectors should I use this,and for what,yes the power supply also has the 2 connectors to go in the mobo but I am operating ok without the second one plugged in.Is there any thing beneficial from having both connectors plugged in??Maybe more efficiency for overclocking??(havent done that yet)I have a Corsair H70 cooler just ordered today for this purpose(oc).All help is relly appreciated.