GPU: Zotac GeForce GTX260 AMP² (216 Shaders), (Core: 650Mhz, Shader: 1400Mhz, Memory: 2100 Mhz) http://pdde.zotac.com/index.php?pag...category_id=24&option=com_virtuemart&Itemid=1 OS: Windows 7 Home Premium 64-Bit Rivatuner 2.24 (I tried Afterburner and Firestorm too) Driver: 259.32 -Fan-Adjustment is working. -Downclocking in 2D-mode is working. -Changing 3D-clocks is not working. If i change anything in the Performance-3D-settings, everything gets messed up and the GPU adjusts itself these settings: Core clock: 400Mhz, Shader clock: 800Mhz, Memory clock: 300Mhz. That are the low-power 3D-settings :3eyes: GPU-Z is showing them in the sensor tab. What is happening here?
