I bought this used card and stock AQ3 scores was 41,248. I ran ATI Tool for approx. 3 hrs (mem and core) each. My OC was 398/338. ***? The mem overclocked lower than stock!I also have this mod ( http://www.short-media.com/review.php?r=271&p=6 ) and replaced old thermal paste with AS5 !! I also have a 92mm fan blowing from the bottom of th card like a ghetto PCI Slot Fan. Would an actual aftermarket cooler help at this moment?