eVGA nForce 680i SLI Motherboard 122-CK-NF68-AR NVIDIA nForce 680i SLI chipset Dual PCI Express x-16 Support Supports Dual Channel DDR 2 553/667/800 and up to 120 MHZ SLI-Ready Memory Supports up to 8GB of DDR2 memory Supports Intel Core 2 Extreme, Core 2 Quad, Core 2 Duo, and More