Sockel: LGA775 / Intel Core™ 2 Extreme processor/ Intel® Core™ 2 Quad processor/Intel Core™ 2 Duo processor/ Intel® Pentium® processor Extreme Edition/Intel® Pentium® D processor/ Intel® Pentium® 4 processor Extreme Edition/Intel® Pentium® 4 processor/ Intel® Celeron® processor Chipset: North Bridge: Intel® P45 Express Chipset / South Bridge: Intel® ICH10 Form Factor: ATX Retail Busclock: 1600/1333/1066/800 MHz Slots: 1x PCI-e X16 , 3x PCI-e X1, 1x PCI-e X8, 2x PCI * ISA-0 * AGP-0 * DPS-0 (PCIEx16 and PCIEx8 slots support ATI CrossFireX technology and conform to PCI Express 2.0 standard.) Speicher: 0xSD-RAM * 4x DDR3 1900 (O.C.)/1600/1333/1066/800 Dual * 0xRAMBUS, bis GB max.: 16GB Features: VGA-n * Audio-ja (8-CH ALC889A) * ATA133-bis 2x * S-ATA-II 6x * Raid-n * GLAN-ja * IEEE1394-2x * USB- 2.0 bis 10x