Asus Motherboard A8N-SLI SE - Manual (Page 150)

6-6 Chapter 6: NVIDIA ® SLI™ technology support
NVIDIA Settings icon
To enable the multi-GPU feature:
1. Click the NVIDIA Settings icon
on your Windows taskbar.
2. From the pop-up menu, select
nView Desktop Manager
then click nView Properties.
6.2.4 Enabling the multi-GPU feature in Windows
After installing your graphics cards and the device drivers, enable
the Multi-Graphics Processing Unit (GPU) feature in the NVIDIA nView
properties.
3. From the nView Desktop Manager
window, select
the Desktop Management tab.
4. Click Properties to display
the Display Properties dialog box.