Community coder Orbmu2K has created a brand new tool titled Nvidia Inspector 1.7. The tool allows you to both have the features of GPU-Z & have access to tools like EVGA Precision gives you. This tool works with Nvidia's GTX 480 & GTX 470 and gives you access to Over volt the card or under volt the card. Check it out, but as always Overclock and over volt at your own risk
If you Google Nvidia Inspector you will most likely get a link to the EVGA.com forums. The link is legit and will get you the program you need.