Hi,

Below are the steps on how you can enable SLI mode if your computer has two or more video cards in the computer.

1. Right-click anywhere on your desktop and select NVIDIA Control Panel from the drop-down menu or click the NVIDIA icon in the Systray.
2. Once you've opened the NVIDIA Control Panel, click the Set SLI configuration link under the 3D settings menu.
3. Finally, select Enable SLI technology.

If you get up to step two but don't see an option to configure SLI, it's fairly likely that you have an issue with your dual video card configuration. The following suggestions are to help clear up these issues.

• Make sure that your video cards are properly seated and that the SLI bridge is installed correctly.
• Sometimes, swapping the slots your cards sit in does the trick.
• Verify that Windows Device Manager is showing two identical graphics cards in the Display Adapters section.
• Ensure that SLI is enabled in your BIOS settings.
• Make sure that you have an adequate Power Supply.
• Get the latest drivers for you BIOS and video card.
• One of your graphics cards may not be functional. Try installing them one at a time to make sure they both work.