Gigabyte GA-M57SLI-DS4 User Manual page 19

Graphics Card Driver Setting:
Step 1: After installing graphics card driver in operating system,
right-click the NVIDIA icon in your system tray and then
select NVIDIA Display. The NVIDIA control panel will
appear.
Step 2: Select SLI multi-GPU from the side menu and then
select the Enable SLI multi-GPU checkbox in the SLI
multi-GPU dialog box. System will restart after you
click Apply. Then the SLI configuration is completed.
- 19 - Hardware Installation