P4I65G S478 I865G MATX ASRock P4i65G Motherboard Socket 478 for Intel Pentium 4 / Celeron D (Prescott, Northwood, Willamette) processors Intel 865G Chipset FSB800/533/400MHz processor, and Hyper-Threading Technology Supports Dual Channel DDR400 (DDR x 2 DIMMs)