I had all sorts of hell finding the SLI settings on Vista after coming to the realization that it may not automatically work after installing. After searching my PC for the SLI settings and determining that there weren't any, I spent a few hours searching the web for the answers. I found them and hopefully this guide can help some of you and maybe save you some time as well.
Step 1: Download drivers.
You have to have a specific set of drivers for SLI to work in Vista. This is where I made my mistake because Vista will automatically download drivers upon an install....but only for one card. It even appears as if all is well and working in the device manager because both cards will appear to have current drivers and both will show to be working correctly, and they are, just not in the SLI sense of "correctly".
You just need to go to this link.......: http://www.nvidia.com/content/drivers/drivers.asp
......and select Graphics Driver>your cards series (i.e. 6/7/8 series)>Windows Vista 32 or 64bit.
This will take you to the download page. The link is at the bottom of the page. Click and download.
Step 2: Install Drivers and Configure SLI.
Once the drivers have downloaded, install them and then your computer will ask you to reboot. Once you have rebooted, go into Start>Control Panel and you should have a new icon called Nvidia Control Panel. Double click that icon and it will bring up the display properties. Expand the 3D Settings box on the left side of the window and then select Set SLI configuration. This is where you enable SLI. Just select Enable SLI and then select your monitor type (either CRT or LCD) and your computer will display a few messages followed by a request to restart.
Reboot and your done!! Your now rollin with some SLI on your Vista box.
Step 1: Download drivers.
You have to have a specific set of drivers for SLI to work in Vista. This is where I made my mistake because Vista will automatically download drivers upon an install....but only for one card. It even appears as if all is well and working in the device manager because both cards will appear to have current drivers and both will show to be working correctly, and they are, just not in the SLI sense of "correctly".
You just need to go to this link.......: http://www.nvidia.com/content/drivers/drivers.asp
......and select Graphics Driver>your cards series (i.e. 6/7/8 series)>Windows Vista 32 or 64bit.
This will take you to the download page. The link is at the bottom of the page. Click and download.
Step 2: Install Drivers and Configure SLI.
Once the drivers have downloaded, install them and then your computer will ask you to reboot. Once you have rebooted, go into Start>Control Panel and you should have a new icon called Nvidia Control Panel. Double click that icon and it will bring up the display properties. Expand the 3D Settings box on the left side of the window and then select Set SLI configuration. This is where you enable SLI. Just select Enable SLI and then select your monitor type (either CRT or LCD) and your computer will display a few messages followed by a request to restart.
Reboot and your done!! Your now rollin with some SLI on your Vista box.