Computers / Components / Motherboards / Asus, Supported Processor AMD Opteron 

Asus M2-CROSSHAIR

Socket AM2, 2000 MHz Bus Speed, Supported Processor AMD Phenom X4 / AMD Phenom X2 / AMD Athlon 64 FX / AMD Athlon 64 X2 / AMD Sempron / AMD Phenom / AMD Phenom FX / AMD Opteron / AMD Athlon X2 / AMD Athlon / AMD Phenom X3, Memory Technology DDR2 (8 GB Max Supported RAM), Memory Frequency 1066 MHz, 4 Memory Slots, System Chipset nVidia nForce 780a SLI

Asus KFSN4-DRE

Socket F, 2000 MHz Bus Speed, Supported Processor AMD Opteron, Memory Frequency 667 MHz

Asus K8N

Socket 754, Supported Processor AMD Athlon 64 / AMD Opteron, System Chipset nVidia nForce3 250