1) FSB 800 / 533 / 400 (Willamette / Northwood / Prescott)2) HT CPU support3) Double DDR 400 / 333 / 2664) AGP 8x / 4x5) 6 channel audio6) 6 x USB 2.0, 2 x serial port (COM1 COM2)7) 4 x PCI slots8) 1 x PS/2 keyboard and PS/2 mouse connectors9) 2 x ultra DMA100/66 devices and 2 x serial ATA devices10) One ECP/EPP standard printer port