ASUS K8M890 AM2 AMD 580X DDR2-800 ATX Motherboard Support Socket AM2 for AMD Athlon 64 X2/ Athlon 64 FX/ Athlon 64/ Sempron AMD 580X CrossFire Chipset/SB600 2000/1600 MT/s DDR2-800/667/533, Max 8GB Entry discrete AM2