General

Form Factor	ATX
Width	30.5cm
Depth	24.5cm
Product Type	Mainboard
Compatible Processors	LGA775 socket for Intel Core2 Extreme / Core2 Duo / Pentium Extreme / Pentium D / Pentium 4 / Celeron D Processors Intel Quad-core CPU Ready Compatible with Intel 06/05B/05A processors * Refer to www.asus.com for Intel CPU support list
Chipset Type	NVIDIA nForce 680i SLI - Support SLI-Ready Memory Technlogy
Max Bus Speed	1333** / 1066 / 800 / 533 MHz ** available when CPUs supporting 1333MHz FSB
Chipset	NVIDIA nForce 680i SLI x 16
SLI	Support two identical NVIDIA SLI-Ready graphics cards (both at x16 mode) ASUS PEG Link
BIOS Type	8Mb Award BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.3, Multi-Language BIOS
Processor Socket	LGA775 Socket
Power Connectors	8-pin ATX12V connector, 24-pin main power connector

    Memory

RAM Installed ( Max )	0 MB / 8 GB (max)
Supported RAM Technology	DDR II SDRAM
Supported RAM Speed	PC2-3200, PC2-4300, PC2-5300 PC2-6400

    Expantion / COnnectivity

Expansion Slots Total (Free)	2 x PCI Express x16 slot, support NVIDIA SLI technology, at full x16, x16 speed(blue and black) 1 x PCI Express x16, at x8 speed(middle) 1 x PCI Express x1 2 x PCI 2.2
Internal I/O Connectors	3 x USB 2.0 connectors supports additional 6 USB 2.0 ports 1 x Floppy disk drive connector 1 x IDE connector for two devices 6 x SATA connectors 8 x Fan connector: 1 x CPU / 1 x SPS / 3 x Chassis / 3 x Optional 3 x thermal sensor connector 1 x IEEE1394a connector 1 x S/PDIF output connector 1 x Chassis Intrusion connector 24-pin ATX Power connector 8-pin ATX 12V Power connector 1 x EL I/O Shield Connector System panel connector
Back Panel I/O Connectors	1 x LCD Poster 1 x PS/2 Keyboard port(purple) 1 x PS/2 Mouse port(green) 1 x Optical + 1 x Coaxial S/PDIF Output 2 x External SATA 2 x LAN (RJ45) port 4 x USB 2.0/1.1 ports 1 x IEEE1394a port 1 x onboard LED switch
IEEE 1394	VIA6308P controller supports 2 x 1394a ports
Storage Interfaces	South bridge supports: - 1 x Ultra DMA 133 / 100 / 66 / 33 - 6 x Serial ATA 3.0Gb/s - NVIDIA MediaShield RAID supports RAID 0, 1, 0+1, 5 and JBOD span cross Serial ATA drives Silicon Image 3132 SATA controller supports - 2 x External Serial ATA 3.0Gb/s port on back I/O (SATA On-the-Go)

    Miscellaneous

Accessories	SLI bridge ASUS Array Mic ASUS Optional Fan 3 in 1 ASUS Q-Connector Kit UltraDMA 133/100/66 cable Floppy disk drive cable SATA cables SATA power cables 2-port USB2.0 module IEEE1394a module EL I/O Shield Thermal sensor cables Cable Ties ROG key ring Users manual
Software	The hottest 3D Game: Ghost Recon InterVideo® Media Launcher (OEM version only) Striker Extreme Support DVD: Drivers ASUS PC Probe II ASUS Update ASUS AI Booster Futuremark 3DMark 06 Advanced Edition NVIDIA MediaShield� RAID Kaspersky Anti-Virus

    Audio

Audio Output

SupremeFX Audio Card - ADI 1988B 8-channel High Definition Audio CODEC - Support Jack-Sensing, Enumeration, Multi-streaming and Jack-Retasking - Noise Filter Coaxial, Optical S/PDIF out DTS® Connect ASUS Array Mic

    Networking

LAN	NVIDIA nForce 680i SLI built-in dual Gigabit MAC with external Marvell PHY Support NVIDIA DualNet® technology

    Features

BIOS Features	8Mb Award BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.3, Multi-Language BIOS
Overclocking Features	LCD Poster EL I/O Onboard LED Onboard Switches: Power / Reset / Clr CMOS Q-Connector Q-Fan Plus ASUS EZ Flash2 ASUS Music Alarm ASUS MyLogo3