478 Main boards 915G V115 1.915G+ ICH6, 478Processor , 2.Support Pentium4 , CeleronD, FSB800MHZ, Dual Channel 3.Support 1xDDR2, 2x DDR1, 1X PCIE 1X, USB2.0× 6( 2 on panel) , 100M lan, 4.With AC97, 6 channel audio , SATA x 2, 1xcom port , 1x LPT, 1x IDE port , 1xFDD port.