Hi Friends, honestly i never did overclocking to my graphic card before i want to learn...i have a 680 ASUS DirectCu 2 OC and my PC its a (ASUS motherboard Z77 VLK...Core i5 3350P Procesor and 8GB GSkill Ripjaws 2133) and V8 Colermaster Coler) Please i will like to now the right way to do it without issues) and how hi can i push this card....thanks...any answer will help...i read it all-....Bye