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

  • Right-click anywhere on your desktop and select NVIDIA Control Panel from the drop-down menu or click the NVIDIA icon in the Systray.

  • Once you’ve opened the NVIDIA Control Panel, click the Set SLI configuration link under the 3D settings menu.

  • Finally, select either Do not use SLI technology or Enable SLI technology (recommended) to toggle SLI on or off.

I don’t see the “Set SLI configuration” option

If you get to step two in the previous section, but don’t see a configure SLI option, it’s likely that there is an issue with video card configuration. The following suggestions are to help clear up these issues.

  • Make sure 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.
  • If you have an older motherboard, you may need to configure your jumpers to enable SLI. Consult you motherboard manufacturer’s manual for instructions.
  • Make sure 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.
  • See the SLI definition for further information and related links.
  • Video card help and support.