EVGA 122-CK-NF68-T1 nForce 680i SLI Motherboard NVIDIA nForce 680i SLI chipset Dual PCI Express x-16 Support Supports Dual Channel DDR 2 553/667/800 and up to 1200 MHZ SLI-Ready Memory Supports up to 8GB of DDR2 memory Supports Intel Core 2 Extreme, Core 2 Quad, Core 2 Duo, and More