Specifications
CPU AMD Socket AM3 Phenom™ II/Athlon™ X4/Athlon™ X3/Athlon™ X2 Processors
AMD Cool 'n' Quiet™ Technology
Supports 45nm CPU
AMD 140W CPU Support
Chipset AMD 790GX/SB750

System Bus Up to 5200 MT/s HyperTransport™ 3.0
Memory 4 x DIMM, Max. 16 GB, DDR3 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. Hence, a total installed memory of less than 3GB is recommended.
**Refer to www.asus.com for the memory QVL (Qualified Vendors Lists).
Expansion Slots 2 x PCIe 2.0 x16 support ATI CrossFireX™ technology, at full x16 or dual x8 link
2 x PCIe x1
2 x PCI 2.2

VGA Integrated ATI Radeon™ HD 3300 GPU
SidePort Memory - onboard 128MB DDR3 1333 memory
- Supports HDMI™ Technology with max. resolution up to 1920 x 1200 (1080P)
- Supports Dual-link DVI with max. resolution up to 2560x1600 @60Hz
- Supports D-Sub with max. resolution up to 2560x1440 @75Hz
- Hybrid CrossFireX™ Support
- Dual independent displays support with HDMI / DVI and D-Sub
- Supports Microsoft® DirectX 10, OpenGL 2.0, Shader Model 4.0
- Hardware Decode Acceleration for H.264,VC-1, and MPEG-2
- Maximum shared memory of 512MB
Storage SB750 Chipset
1 xUltraDMA 133/100/66 for up to 2 PATA devices
5 xSATA 3 Gb/s ports Support RAID 0,1,5,10,JBOD
1 x eSATA 3Gb/s port

*Due to the Windows XP/ Vista limitation, the RAID array with the total capacity over 2TB cannot be set as a boot disk. A RAID array over 2TB can only be set as a data disk only. For more information, please refer to http://support.microsoft.com/kb/946557/en-us
LAN Atheros® L1E Gigabit LAN controller featuring AI NET 2

Audio VIA® VT1708S 8 -Channel High Definition Audio CODEC
- Supports Jack-Detection, Multi-Streaming, and Front Panel Jack-Retasking
- Optical S/PDIF Out ports at back I/O
- ASUS Noise Filtering
IEEE 1394 VIA® VT6315N controller supports 2 x 1394a ports (1 at mid-board; 1 at back panel)
USB 12 USB 2.0 ports (6 ports at mid-board, 6 ports at back panel)
ASUS Unique Features ASUS Power Solutions:
- 8+1 Phase Power Design
- ASUS Anti-Surge Protection
ASUS Green Design:
- EPU
- ASUS AI Nap
Express Gate
ASUS Quiet Thermal Solution:
- ASUS Fanless Design: Stylish heat sink solution
- ASUS Q-Fan2
ASUS EZ DIY:
- ASUS Q-Shield
- ASUS Q-Connector
- ASUS CrashFree BIOS 3
- ASUS O.C. Profile
- ASUS EZ Flash 2

Overclocking Features Intelligent overclocking tools
- AI Overclocking (intelligent CPU frequency tuner)
- TurboV
- Turbo Key
Precision Tweaker 2
- vDIMM: 50 -step DRAM voltage control
- vCore: Adjustable CPU voltage at 0.0125V increment
- vChipset (N.B.): 16-step voltage control
SFS (Stepless Frequency Selection)
- FSB tuning from 200MHz up to 600MHz at 1MHz increment
- PCI Express frequency tuning from 100MHz up to 150MHz at 1MHz increment
Overclocking Protection
- ASUS C.P.R.(CPU Parameter Recall)

Special Features 100% All High-quality Conductive Polymer Capacitors! (VRM 5000hrs lifespan @105°C, 500,000hrs @65°C)
ASUS MyLogo 2
AMD OverDrive Support*
*Advanced cooling system is required when advanced overclock functions of AMD OverDrive are enabled.
Back Panel I/O Ports 1 x DVI
1 x D-Sub
1 x HDMI
1 x External SATA
1 x S/PDIF Out (Optical)
1 x IEEE 1394a
1 x LAN(RJ45) port
6 x USB 2.0/1.1
8 -Channel Audio I/O
1 x PS/2 Keyboard port (Purple)
Internal I/O Connectors 3 x USB connectors (6 ports)
1 x Floppy disk drive connector
1 x IDE connector
5 x SATA connectors
1 x IEEE 1394a connector
1 x CPU Fan connector
2 x Chassis Fan connector
1 x Power Fan connector
1 x S/PDIF Out connector
Front panel audio connector
Chassis Intrusion connector
1 x COM connector
CD audio in
24-pin ATX Power connector
4-pin ATX 12V Power connector
System Panel (Q-Connector)

BIOS 8 Mb Flash ROM
AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.3, ACPI 2.0a, ASUS EZ Flash 2, ASUS CrashFree BIOS 3

Manageability WOL by PME,WOR by PME,WOR by Ring,Chasis Intrusion,PXE
Accessories 1 x UltraDMA 133/100/66 cable
4 x SATA cables
1 x Q-Shield
1 x User's manual
2 in 1 Q-connector (USB, System panel; Retail version only)
*The floppy disk drive cable is purchased separately.
Support Disc Drivers
ASUS PC Probe II
Express Gate
ASUS AI Suite
Anti-virus software (OEM version)
ASUS Update
AMD OverDrive Utility (AOD)

Form Factor ATX Form Factor
12 inch x9.6 inch ( 30.5 cm x 24.4 cm )