I am having trouble with the fan control, I want to set it to 50%. I put the bar to 50% and checked the Apply Fan Settings at Windows Startup box, clicked Save, and clicked Apply and Ok. Every time I start up my computer it goes back to 100% again.
http://forums.guru3d.com/showthread.php?t=255961 That's known bug of the ForceWare drivers, it was fixed by NVIDIA for GeForce 9 series in version 175.19 but some low-end GeForce 7 and 8 series are still affected by the problem. And considering that this hardware is outdated, I'd say that the chances to see it fixed by NVIDIA are really low.