Features Two Quad-Core / Dual-Core    AMD Opteron™ 2000 Series (Socket F) Support, 1000 MHz HyperTransport Link nVidia MCP55 Pro / nVidia IO-55 /NEC uPD720400 Chipset Up to 64GB DDR2-667/533/400 SDRAM Dual-port Gigabit  LAN/Ethernet Controller 6 SATA2 3.0Gbps Ports 2 (x16), 1 (x8) &  1 (x4) (using x8 slot)PCI-e, 1x 64-bit 133MHz PCI-X, 1x 64-bit 100MHz PCI-X SIMLP IPMI 2.0 Support 8 Fan Support with Speed Control

Main Specifications
Form Factor	Extended ATX
Dimensions	12" x 13.05" (30.5cm x 33.2cm)
CPU	Dual 1207-pin Socket F Supports up to two Quad-Core / Dual-Core AMD Opteron™ 2000 Series (Socket F) processor(s) NOTE: Motherboard PCB revision 2.01 is recommended for quad-core revision B1 or BA processors.
System Bus	1000MHz HyperTransport
System Memory	Memory Capacity Eight 240-pin DIMM sockets Supports up to 64GB DDR2 667/533/400 MHz memory Single or Dual (recommended) channel memory support For Single CPU: Memory must be populated in CPU1 DIMMs only For Dual CPUs: Recommended that memory be populated equally in adjacent memory banks Memory Type DDR2 667/533/400MHz buffered (registered) ECC SDRAM 72-bit, 240-pin gold-plated DIMMs Memory Voltage 1.8V only DIMM Sizes 256MB, 512MB, 1GB, 2GB, 4GB, 8GB Error Detection Corrects single-bit errors Detects double-bit errors (using ECC memory)
On-Board Devices	Chipset nVidia MCP55 Pro /nVIDIA IO55 /NEC uPD720400 SATA nVidia MCP55 Pro SATA2 3.0Gbps Controller 6 SATA Ports nVidia RAID 2.0 SATA RAID 0, 1, 0+1, 5, JBOD Support IPMI Support for Intelligent Platform Management Interface v.2.0 200-pin IPMI slot (SIMLP) (Optional: AOC-SIMLP-B(+)  R 3.00) (Optional: AOC-SIMLP-3(+)  R 3.00) with 3rd LAN support NOTE: KVM-over-LAN not supported - there is no DVO signal to the IPMI slot RMM (Remote Management Module) (Card not included) Network Controllers nVidia MCP55 Pro Chipset Dual-port LAN / Ethernet Controller Supports 10BASE-T, 100BASE-TX, and 1000BASE-T, RJ45 output Audio HD Audio 7.1 Sound Super I/O Winbond 83627HF
Input / Output	Serial ATA 6 SATA2 ports IDE Single EIDE channel support up to two UDMA IDE devices Supports UDMA Mode 5 Supports PIO Mode 4 Supports ATA 100/133 Floppy 1x Floppy port 1.44 MB LAN 2x RJ45 LAN ports USB FUCI Up to 8 USB Ports 2.0 Compliant, 1.1 Compliant 4 Rear Ports 4 Internal Headers Audio 1 Line In / Line Out / Microphone port 3 Audio Jacks for 7.1 Sound Keyboard / Mouse PS/2 keyboard and mouse ports Firewire 2x 1394 internal headers Parallel Port 1 ECP / EPP parallel port Serial Port 2x Fast UART 16550 serial port
System BIOS	BIOS Type 8Mb Flash EEPROM with AMI® BIOS BIOS Features Plug and Play (PnP) DMI 2.3 PCI 2.2 ACPI 2.0 BIOS Rescue Hot Keys SMBIOS 2.3 USB Keyboard support Hardware BIOS Virus Protection
Expansion Slots	PCI-Express 2x 16 PCI-e slot (nVidia SLI Technology Supported) 1 x8 PCI-e using x16 slot 1 x4 PCI-e using x8 slot PCI-X 1 64-bit 133MHz PCI-X (3.3V) slots 1 64-bit 100MHz PCI-X (3.3V) slot IPMI IPMI 2.0 expansion slot
Management	Software Optional IPMI (Intelligent Platform Management Interface) Super Doctor III Watch Dog Power Configurations ACPI Power Management Wake-On-Ring (WOR) headert Wake-On-LAN (WOL) header Power-on mode control for AC power loss recovery Internal/External modem remote ring-on Keyboard Wakeup from Soft-Off CPU Fan auto-off in sleep mode Suspend to RAM (STR)
PC Health Monitoring	CPU Monitors CPU Core Voltages, +1.5V, +3.3V, +5V, ±12V, 3.3V Standby, 5V Standby, HyperTransport Link voltage 1.2V, memory voltage 1.8V, VBAT CPU switching voltage regulator FAN Total up to 8-fan status tachometer monitoring Up to eight 4-pin fan headers Status monitor for speed control Stauts monitor for on/off control Low noise fan speed control Pulse Width Modulated (PWM) fan connectors Temperature Monitoring for CPU and chassis environment CPU Thermal Trip support Thermal Control for 8x Fan Connectors I^2C Temperature Sensing Logic LED CPU / System Overheat LED +5V Standby Alert LED Suspend-State Indicator LED Other Features Chassis intrusion detection Chassis intrusion header
Operating Environment / Compliance	RoHS RoHS Compliant 5/6, Server Exemption Environmental Specifications Operating Temperature:   10°C to 35°C (50°F to 95°F) Non-operating Temperature:  -40°C to 70°C (-40°F to 158°F) Operating Relative Humidity:  8% to 90% (non-condensing) Non-operating Relative Humidity:  5% to 95% (non-condensing)
OS Compatibility	Please see OS Compatibility Chart
Regulatory	Class B
Power Supply requirement	To ensure system stability, a 550W (minimum) ATX power supply [ 4-pin (+12V), 8-pin (+12V) and 24-pin are required]