ok , so i have been the dark for about 3 years now , holding on to my 480s like they were gold .. well i finally plunged and got a couple 680 4 gb in sli. I have read alot about over volting the 680s , and i am not sure if i compleetly understand . basically i am going to over clock them when i get my water blocks . I used msi afterburner to over volt and over clock my 480s with no problems . so here is the question . can i use after burner to oc the 680s . or do i need a evbot ? thies cards dont have that port on them so , i was wondering if i could use msi ab to force voltages or does this not work ? if it does work , what is a common OV ad OC for this card on water ? sorry if thies questions are dumb but it has been a while for me and this is what thies forms are for .. dummies like me someone please help . thanks !