Ok so I'm trying to OC my 6600GT PCIE card to get the most out of it before it gets totally obsolete. On stock cooling I've had it OC'd to 570/1100 and I score a respectable 3890 on 3DMark05, which is the highest I could go. But my temps were about 55* @ idle and 70-75* @ load, so I wanted to cool a bit more. I purchased a Zalman VF700-CU, installed it, and temps are down to 45* @ idle and 55* under load. So I OC'd it to 580/1200, still reaches the same temp, and seems stable while playing games. Yet, when I benchmark it with 3DMark05, I now get a consistent score of around 2500? Any idea why performance has gone down? Latest driver is installed.