Originally posted by DJ-CHRIS
Since you guys are experts in 6600GT Overclocking
When I overclock my GT past 575 and 1.15, I start to see a peformance decrease, any idea's on this?
The problem that you are having is card throtteling.
use Rivatuner 2.0 RC15.3 > go into Power User> then Nvidia \ Overclocking and change
DisableInternalClockTest to 1
Enable PerfLevelForcing to 1
then go in to Main tab and click the second box next to customise and go to the first block, In the overclocing tab set the Force Constant Preformance Level to Preformance 3D. And then overclocling your card usign the sliders above that, and test go 5Mhz a time until you see artifacting.
Have fun, and good luck