Originally Posted by Erwin
i have set my clocks to 570/1140 on my 6600gt, it can scan for 30min and it says its stable, but when i restart my com, and test the first time i start it i get this wierd delta things, when i start it again its perfectly stable.
does a card need to warm up or something ?
Unless you have a profile saved with your overclock settings Tool will revert to Default clocks everytime you open it.
You need to create a New profile and then save it and choose that profile to load when Tool opens.
The delta things are artifacts, your OC is too high and on the rstart you don't see the artifacts because the clocks are back at default.