Download NVIDIA Inspector version 1.9.7.2, a handy application that reads out driver and hardware information for GeForce graphics cards. The nVIDIA Inspector Tool is basically an nVIDIA only GPU-Z utility but with a decent OverClocking feature and you can set your clocks and fan speeds. Orbmu2k has released this program, which seems to NVIDIA graphics cards and offers information on tools for GPU and memory clock speed, GPU operating voltage and fan speed increase.