I spend about 8 hour just try to get my pc to boot to window with this card in it . since I be rebuild this system , I be able to install xp first . card be recognize and everything be go well . however , once I do a clean install of window 7 , thing go downhill from there . I keep get blue screen of death and sometimes no boot at all . have to keep take the card out and run agp only and then put it back end and every time , it would cause the pc to either not boot at all or crash with blue screen . finally find someone with the same issue install this on a Dell Precision workstation in the PCI slot . have to take it out of the PCI slot and move it to the pci-x slot while the computer be on and get window 7 to recognize the card , and then install the NVIDIA driver while keep the old AGP Video Card in . once it reboot and I could see the device in the device manager , have to reboot and change bio setting for primary video from agp to AUTO . finally after 2 restart it reboot and come up to window on the DVI port of this new card . the educate guess from other be that window 7 and the Dell Bios be have trouble read the 512 mb of pny memory on the card . unfortunately , I can not verify this . now that the card be run it be great .