LGA775 socket 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. 16GB, DDR3 1800*/1600*(O.C.) / 1333 / 1066 MHz, Non ECC, un-buffered memory Dual channel memory architecture Supports Intel® Extreme Memory Profile (XMP) *Refer to www.asus.com or this user manual for the Memory QVL(Qualified Vendors Lists) . ** DDR3 2000(O.C.) /1600, it is suggested to use one DIMM per channel ***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 **** It is recommended to install the memory modules from the orange slots for better overclocking capability.
Expansion Slots	2 x PCI Express 2.0 x16 slots, support ATI CrossFireX? technology at x8 link (PCIe x16_1 blue, PCIe x16_2 black*) 1 x PCI Express x16 slot at max. x4 link(black) 2 x PCI Express x1 slots 2 x PCI slots *PCI Express x16_2 slot (black at max. x8 link)
CrossFire	Support ATI CrossFireX? technology, up to Quad CrossFireX
Storage	Southbridge - 6 x SATA 3Gb/s - Intel® Matrix Storage Technology with RAID 0, 1, 5, 10 support Marvell 88SE6121 - 1 x UltraDMA 133/100/66 for up to 2 PATA devices - 1 x External SATA 3Gb/s port (SATA On-the-Go) Silicon Image Sil5723 (Drive Xpert Technology) - 2 x SATA 3Gb/s - Supports EZ Backup and Super Speed functions *Drive Xpert function is available only when the hard disk drives are set as data drives.
LAN	Dual Gigabit LAN controllers Marvell 88E8056/88E8001® Gigabit LAN controller featuring AI NET2, Teaming, Redundant
Wireless LAN	ASUS WiFi-AP @n - 300Mbps* IEEE 802.11n (Draft) and backwards compatible with IEEE 802.11g / b - Software Access Point mode *300Mbps is IEEE 802.11n draft specification. Actual throughput varies depending on the wireless environment and other parameters
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®L-FW3227 controller supports 2 x IEEE 1394a ports(one at mid-board; one at back panel)
USB	Max. 10 USB2.0/1.1 ports(4 ports at mid-board, 6 ports at back panel)
ASUS Unique Features	ASUS Exclusive Features: - ASUS WiFi-AP @n - ASUS True 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 DieHard BIOS - ASUS Q-Shield - ASUS Q-Connector - AI Direct Link - ASUS O.C. Profile - ASUS EZ Flash 2 - Onboard Switch
Overclocking Features	ASUS AI Booster Precision Tweaker 2: - vCore: Adjustable CPU voltage at 0.00625V increment - vDIMM: 64-step DRAM voltage control - vChipset (N.B.) : 48-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 MyLogo 3
Back Panel I/O Ports	1 x PS/2 Keyboard / Mouse combo port 1 x S/PDIF Out (Coaxial + Optical) 1 x External SATA 1 x IEEE1394a 2 x RJ45 port 6 x USB 2.0/1.1 2 x WiFi-AP @n omni-directional antenne 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) 2 x Drive Xpert SATA connectors (orange) 1 x CPU Fan connector 3 x Chassis Fan connector 1 x Power Fan connector 1 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 System Panel (Q-Connector) 1 x TPM connector 1 x Power on switch 1 x reset switch
BIOS	16Mb AMI BIOS, PnP, DMI2.0, WfM2.0, 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 2-port USB and 1-port 1394 (4-pin) module 1 x Q-Shield 1 x 3 in 1 Q-connector 1 x ASUS optional fan for water-cooling or passive-cooling only 2 x WiFi-AP @n antenna omni-directional antennae User's manual ASUS WiFi-AP @n manual
Support Disc	Drivers ASUS PC Probe II ASUS Update ASUS AI Suite Anti-virus software (OEM version) Image-Editing Suite
Form Factor	ATX Form Factor, 12"x 9.6" (30.5cm x 24.4cm)