CPU	Intel Socket 775 Processors for Intel® Core™2 Extreme/Core™2 Quad/ Core™2 Duo/Pentium® dual-core/Celeron® dual-core /Celeron® Processors Compatible with Intel® 05B/05A/06 processors Supports Intel® 45nm multi-core CPU
Chipset	Intel P45 / ICH10R with Intel® Fast Memory Access(FMA) support
Front Side Bus	1600/1333/1066/800 MHz
Memory	4 x DIMM, Max. 16 GB, DDR2 1200/1066/800/667 Non-ECC,Un-buffered Memory Dual Channel memory architecture Please refer to www.asus.com or user manual for Memory QVL. When installing total memory of 4GB capacity or more, Windows 32-bit operation system may only recognize less than 3GB. Hence, a total installed memory of less than 3GB is recommended.
Expansion Slots	1 x PCI Express 2.0 x16 slot at max. x16 link (blue) 1 x PCI Express 2.0 x16 slot at max. x8 link (white) 2 x PCI Express x16 slot at max. x4 link (black) 1 x PCIe x1 2 x PCI
CrossFire	Support ATI CrossFireX™ technology, up to Quad CrossFireX
Storage	Southbridge 6 xSATA 3 Gb/s ports Intel® Matrix Storage Technology Support RAID 0,1,5,10 Marvell 88SE6121 1 x UltraDMA 133/100/66 for up to 2 PATA devices Silicon Image Sil5723 (Drive Xpert technology) 4 x SATA 3Gb/s (orange and blue) Supports EZ Backup and Super Speed functions
LAN	Quad Gigabit LAN controllers Marvell 88E8056® Gigabit LAN controller featuring AI NET 2, Teaming, and Redundant
Audio	ADI® AD2000B 8 -Channel High Definition Audio CODEC - Support Jack-Detection, Multi-Streaming, and Front Panel Jack-Retasking - Coaxial/Optical S/PDIF out ports at back I/O - ASUS Noise-Filtering
IEEE 1394	LSI 3227 2 x 1394a ports
USB	14 USB 2.0 ports (4 ports at mid-board, 10 ports at back panel)
ASUS AI Lifestyle Features	ASUS Exclusive Features: - ASUS 16-Phase Power Design - Express Gate SSD ASUS Power Saving Solutions: - ASUS EPU-6 Engine - ASUS AI Nap ASUS Quiet Thermal Solutions: - ASUS Fanless Design: Heat-pipe solution - ASUS Fanless Design: Stack Cool 2 - ASUS Fan Xpert ASUS Crystal Sound: - AI Audio 2 - ASUS Noise Filtering ASUS EZ DIY: - ASUS Drive Xpert - ASUS Q-Shield - ASUS Q-Connector - ASUS AI Direct Link - ASUS O.C. Profile - ASUS CrashFree BIOS 3 - ASUS EZ Flash 2
Overclocking Features	ASUS AI Booster Precision Tweaker 2: - vCore: Adjustable CPU voltage at 0.00625V increment - vDIMM: 64-step DRAM voltage control - vChipset (NB): 55-step chipset voltage control - vCPUPLL: 64-step reference voltage control - vFSB Termination: 40-step voltage control SFS (Stepless Frequency Selection) - FSB tuning from 200MHz up to 800MHz at 1MHz increment - PCI Express frequency tuning from 100MHz up to 180MHz at 1MHz increment Overclocking Protection: - ASUS C.P.R.(CPU Parameter Recall)
Special Features	ASUS MyLogo2 ASUS Data Guardian--TPM support
Back Panel I/O Ports	1 x PS/2 Keyboard/Mouse combo port 1 x Optical + 1 x Coaxial S/PDIF Output 4 x LAN (RJ45) port 10 x USB 2.0/1.1 ports 8-channel Audio I/O
Internal I/O Connectors	2 x USB connectors support additional 4 USB ports 1 x Floppy disk drive connector 1 x IDE connector 1 x COM connector 6 x SATA connectors (red) 4 x Drive Xpert SATA connectors (orange and blue) 1 x CPU Fan connector 3 x Chassis Fan connector 1 x Power Fan connector 2 x IEEE1394a connector Front panel audio connector 1 x S/PDIF Out Header Chassis Intrusion connector CD audio in 24-pin ATX Power connector 8-pin ATX 12V Power connector Power on Switch Reset Switch System Panel (Q-Connector)
BIOS	16 Mb Flash ROM DMI 2.0 AMI BIOS PnP WfM 2.0 SM BIOS 2.4
Manageability	WOL by PME, WOR by PME, WOR by Ring, Chasis Intrusion, PXE
Accessories	1 x UltraDMA 133/100/66 cable 1 x FDD cable 8 x Serial ATA cable 2 x 2-port Serial ATA power cable 1 x eSATA + 1-port 1394 (4-pin) module 1 x TPM module 1 x Q-Shield 1 x User's manual 1 x Optional Fan 1 x 3 in 1 Q-connector (Retail version only)
Support Disc	Drivers ASUS PC Probe II ASUS AI Suite Anti-virus software (OEM version) ASUS Update Image-Editing Suite
Form Factor	ATX Form Factor 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )