First you must uninstall the drivers for your current intergrated chip. This is done through add/remove programs. It will most likely be listed as Nvidia driver or Nvidia Forceware. After that shut down.
You can now install your new card. On some boards you have to change the BIOS from intergrated to PEG (PCI-E). In most cases the BIOS will automatically detect what you are using.
Installing new drivers:
Next be sure to close out any real time protection services such as an anti-virus or firewall and uplug all USB devices. Now it is safe to install your new drivers. Reboot and you are ready to go.
Once you are done go to Start > right click on My Computer > select Manage. Click on the device manager. Next expand the display drivers. You should only see you new card. If you do still see your intergrated chip listed then right click on it and select "disable".
Edit: Grammer
Edited by Titan8990, 21 December 2007 - 11:09 AM.