Sockel: 2 * Socket LGA771, Quad-Core Intel® Xeon® 5400 Series (45nm), Dual-Core Intel® Xeon® 5200 Series (45nm), Quad-Core Intel® Xeon® 5300 Series, Dual-Core Intel® Xeon® 5100 Series Chipset: Intel® 5000V Memory Contoller Hub (MCH), Intel® 6321ESB Form Factor: SSI CEB 1.1 Compliant , 12" * 10.5" Busclock MHz FSB: FSB 667/1066/1333MHz EM64T 2x2M, 4M or 8M L2 cache Total PCI/PCI-X/PCI-E Slots: 5 1/2/2Slot Location 1: 1 * PCI-E x8 slot (x8 link)Slot Location 2: 1 * PCI-E x8 slot (x4 link)Slot Location 3: ---Slot Location 4: 1 * PCISlot Location 5: 1 * PCI-X 133/100 MHzSlot Location 6: 1 * PCI-X 133/100 MHzSpeicher: 6x (2-CH) Fully-Buffered DIMM DDR2 533/667 Reg. ECC / Memory standard max.: 24GB Features: VGA-ja (XGI Z7 PCI Display Controller 32MB) * Audio-n * ATA-100-1x * S-ATA2-6x * SAS-n * Raid-ja (SATA) * GLAN-ja * IEEE1394-n * USB-2.0-4x