NVidia has even built overclocking settings into the latest drivers. To enable them, open Windows Registry editor by going to Start, Run, typing regedit, and pressing Enter. Navigate to "HKEY_lOCAL_MACHINE/SOFTWARE/NVIDIA Corporation/Global/NVTweak/", right-click the right pane of the editor and choose to add a new DWord called coolbits. Edit that entry and give it a hex value of 3, then close your Registry editor. The NVidia tab under your PC's advanced display properties settings will now feature a "Clock Frequency Settings" page that allows you to adjust memory and graphics chip clock speeds for your board. Click the "Detect Optimal Frequencies" button if you want the utility to try to find safe overclocked settings for your graphics board.
