This motherboard supports AMD® Socket AM2+ multi-core processors. It features dual-channel DDR2 1066 memory support, data transfer rate up to 5200MT/s via HyperTransport™ 3.0 based system bus, and AMD® Cool ´n´ Quiet™ Technology.

Specifications CPU AMD AM3/AM2+/AM2 ;Phenom™II /Athlon™II /Phenom™ / Athlon™ /Sempron™ Processors Support 45nm CPU AMD Cool 'n' Quiet™ 2.0 Technology (by CPU type) Support CPU up to 125W *Refer to www.asus.com for the AMD CPU support list Chipset AMD 785G/SB710 System Bus Up to 5200 MT/s ; HyperTransport™ 3.0 interface for AM2+/AM3 CPU 2000 / 1600 MT/s for AM2 CPU Memory 4 x DIMM, Max. 16 GB, DDR2 1200(O.C.)/1066*/800/667 ECC,Non-ECC,Un-buffered Memory Dual Channel memory architecture *We recommend that you install the DDR2 1200 memory modules on the yellow slots for better performance. *Due to AMD CPU limitation, DDR2 1200(O.C.)/1066 is supported by AM3/AM2+ CPU for one DIMM per channel only. *Refer to www.asus.com for the memory QVL (Qualified Vendors List) Expansion Slots 1 x PCIe 2.0 x16 1 x PCIe x1 2 x PCI VGA Integrated ATI Radeon HD4200 Max. shared memory: 512 MB Supports DVI-D with HDCP compliant with max. resolution 2560x1600 (@ 60Hz dual-link) Supports HDMI™ Technology with max. resolution up to 1920 x 1200 (1080P)@60Hz Supports RGB with max. resolution 2048 x x1536 @85Hz Hybrid CrossFireX™ Support (For Windows Vista only) Supports Microsoft® DirectX 10.1, OpenGL 2.0, Shader Model 4.1 Hardware Decode Acceleration for H.264,VC-1, and MPEG-2 Dual VGA output support: RGB & DVI RGB & HDMI *Refer to www.amd.com for the Hybrid CrossFireX selected GPUs. Storage Southbridge 1 xUltraDMA 133/100/66 6 xSATA 3 Gb/s ports Support RAID 0,1,10,JBOD LAN Realtek® 8112L Gigabit LAN Audio VT1708S High Definition Audio 8-Channel CODEC - Optical S/PDIF out port at back I/O - Supports Jack-Detection, Multi-Streaming, and Front Panel Jack-Retasking USB 12 USB 2.0/1.1 ports (6 ports at mid-board, 6 ports at back panel) ASUS Unique Features ASUS 4+1 Phase Power Design EPU- 4 Engine Express Gate ASUS CrashFree BIOS 3 ASUS EZ Flash 2 ASUS MyLogo 2 ASUS Q-Fan ASUS Anti-surge ASUS AI NET2 Overclocking Features Intelligent overclocking tools - ASUS Turbo Key - ASUS GPU NOS *GPU NOS does not take effect under HybridCrossFireX mode 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 DVI 1 x D-Sub 1 x HDMI 1 x S/PDIF Out (Optical) 1 x LAN(RJ45) port 6 x USB 2.0/1.1 8 -Channel Audio I/O Internal I/O Connectors 3 x USB connectors supports additional 6 USB 2.0 ports 1 x IDE connector 6 x SATA connectors 1 x CPU /Chassis Fan connector 1 x Front panel audio connector 1 x S/PDIF Out connector 1 x COM connector 1 x Printer port 1 x System Panel connector 1 x 24-pin ATX Power connector 1 x 4-pin ATX +12V Power connector BIOS 8 Mb Flash ROM , AMI BIOS, PnP, DMI v2.0, WfM2.0, SM BIOS V2.5, ACPI V2.0a Accessories User's manual 1 x I/O Shield 1 x UltraDMA 133/100/66 cable 2 x SATA cable(s) Support Disc Drivers ASUS PC Probe II Anti-virus software (OEM version) ASUS Update Form Factor uATX Form Factor 9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )