Asus M2N-SLI Deluxe - Manual (Page 43)

ASUS M2N-SLI Deluxe 2-
Recommended PCI Express x16 configurations
Mode
PCIEX16_1 (Blue) slot PCIE16_2 (Black) slot
Card type Speed Card type Speed
Non-SLI mode PCIe x16 graphics card x16 NA
PCIe x16 graphics card x16 PCIe x16 graphics card x8
PCIe x16 graphics card x16 Other PCIe devices x8, x4, x1
Dual graphics
card in SLI Mode
Two identical NVIDIA ® SLI™ Edition graphics cards at x8, x8 speed