Product Description

To fully unleash the AM3 CPU's potential, the ASUS M4 series motherboards have adopted an 8-phase VRM power design. It delivers high power efficiency and supreme overclocking ability. Furthermore, high quality power components can effectively lower system temperature to ensure longer component lifespan. This series also features an extra 1 phase power dedicated to integrated memory/HT controller.

• 8+1 Phase Power Design
• AMD 140W CPU Support
• DDR3 1800+(O.C.)
• ATI CrossFireX™ Technology Support
• EPU
• ASUS Express Gate
• Turbo Key

CPU    
AMD Socket AM3 ;Phenom™II /Athlon™II /Sempron™ 100 Series Processors
AMD 140W CPU Support
AMD Cool 'n' Quiet™ 2.0 Technology (by CPU type)
Support 45nm CPU
*Refer to www.asus.com for the AMD CPU support list

Chipset    
AMD 770/SB710

System Bus    
Up to 5200 MT/s HyperTransport™ 3.0 interface

Memory    
4 x DIMM, Max. 16 GB, DDR3 1800(O.C.)/1600(O.C.)/1333/1066 ECC,Non-ECC,Un-buffered Memory
Dual Channel memory architecture
*Due to OS limitation, when installing total memory of 4GB capacity or more, Windows® 32-bit operation system may only recognize less than 3GB. Install a 64-bit WindowsWindows® OS when you want to install 4GB or more memory on the motherboard.
*Refer to www.asus.com or user manual for Memory QVL (Qualify Vendor List)

Expansion Slots    2 x PCIe 2.0 x16 (*blue@ x16 mode, black@ x4 mode)
1 x PCIe x1
3 x PCI
Storage    SB710 Chipset
1 xUltraDMA 133/100
5 x Serial ATA 3Gb/s Support RAID 0,1,10
1 x eSATA 3Gb/s ports

LAN    
Realtek 8112L PCIe Gb LAN

Audio    
VT1708S High Definition Audio 8 -Channel CODEC
 Supports Jack-detect and Multistreaming teconologies, and Front Panel Jack-Retasking
 Optical S/PDIF Out ports at back I/O

USB    
12 USB 2.0 ports (6 ports at mid-board, 6 ports at back panel)

ASUS Unique Features    
ASUS EPU-4 Engine
ASUS Express Gate
ASUS Turbo Key
ASUS Q-Fan
ASUS CrashFree BIOS 3
ASUS EZ Flash 2
ASUS MyLogo 2
ASUS AI NET 2

Overclocking Features    
Intelligent overclocking tools
 Turbo Key
SFS (Stepless Frequency Selection)
 FSB tuning from 200MHz up to 550MHz at 1MHz increment
 PCI Express frequency tuning from 100MHz up to 150MHz at 1MHz increment
Overclocking Protection
 ASUS C.P.R.(CPU Parameter Recall)

Back Panel I/O Ports    
1 x PS/2 Keyboard/Mouse Combo port
1 x Parallel
1 x External SATA
1 x S/PDIF Out (Optical)
1 x LAN(RJ45) port
6 x USB 2.0/1.1
1 x COM port
8 -Channel Audio I/O

Internal I/O Connectors    
3 x USB connectors supports additional 6 USB 2.0 ports
1 x IDE connector
5 x SATA connectors
1 x CPU / 1 x Power / 1 x Chassis Fan connectors
1 x S/PDIF Out connector
1 x System Panel connector
1 x CD audio-in connector
1 x High Definition Front panel audio connector
1 x 24-pin EATX power connector
1 x 4-pin ATX 12V Power connector

BIOS    
8 Mb Flash ROM
AMI BIOS, PnP, DMI v2.0, WfM2.0, ACPI v2.0a, SMBIOS 2.5

Form Factor    
ATX Form Factor
12 inch x 8.8 inch ( 30.5 cm x 22.4 cm )