Foxconn Bloodrage - Manual (Page 126)

Appendix
119
Click "Advanced Settings" from the dialog box.
Select the NVIDIA GeForce tab, then click
"Start the NVIDIA Control Panel".
2. When using two graphics cards:
Select “Set SLI Configuration”, then
click "Enable 2-way NVIDIA SLI",
when done, click Apply to enable it.
Select the “3D Setting” tab and enable
the “Show SLI Visual Indicators” item.
When using two graphics cards:
Just select “Set SLI Configuration”, then
click "Enable SLI" and set the display,
when done, click Apply.