CPUAMD Socket AM3 ;PhenomII /AthlonII /Sempron 100 Series ProcessorsSupports 45nm CPUAMD 140W CPU SupportAMD Cool 'n' Quiet TechnologyChipsetAMD 880G/SB850System BusUp to 5200 MT/s ; HyperTransport 3.0Memory4 x DIMM, Max. 16 GB, DDR3 2000(O.C.)/1600(O.C.)/1333/1066 ECC,Non-ECC,Un-buffered MemoryDual Channel memory architecture*Due to CPU spec., AMD 100 and 200 series CPUs support up to DDR3 1066Mhz. With ASUS design, this motherboard can support up to DDR3 1333MHz.**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.Expansion Slots1 x PCIe 2.0 x162 x PCIe 2.0 x11 x PCIVGAIntegrated ATI Radeon HD 4250 GPU- Supports HDMI Technology with max. resolution up to 1920 x 1080- Supports Dual-link DVI with max. resolution up to 2560x1600 @60Hz- Supports D-Sub with max. resolution 2048x1536 @85Hz- Hybrid CrossFireX Support- Dual independent displays support with HDMI / DVI and D-Sub- Supports Microsoft DirectX 10.1, OpenGL 2.0, Shader Model 4.1- Hardware Decode Acceleration for H.264,VC-1, and MPEG-2- Maximum shared memory of 1GBStorageSB850 Chipset6 xSATA 6.0 Gb/s ports Support RAID 0,1,5,10VIA VT6415 PATA controller1 xUltraDMA 133/100 for up to 2 PATA devicesLANRealtek RTL8111E Gigabit LAN controller featuring AI NET 2AudioALC892 8-Channel High Definition Audio CODEC- Supports 192kHz/ 24bit BD Lossless Sound- Supports Jack-Detection, Multi-Streaming, and Front Panel Jack-Retasking (HD mode only)- Optical S/PDIF Out ports at back I/OUSB- 2 x USB 3.0 ports (blue, at the back panel)- 12 x USB 2.0/1.1 ports (8 ports at mid-board, 4 ports at back panel)ASUS Unique FeaturesASUS Xtreme DesignASUS Hybrid Processor -- TurboV EVO- Turbo Unlocker, Auto Tuning, TurboV, CPU Level UP and GPU BoostASUS Hybrid Switch- Core UnlockerASUS Hybrid OS -- Express GateASUS Power Solutions- 4+1 Phase Power Design- ASUS Anti-Surge Protection- ASUS EPUASUS Exclusive Features- MemOK!- Anti-surge protectASUS Quiet Thermal Solution- ASUS Fanless Design: Heat sink solution- ASUS Fan-Xpert- ASUS Stack Cool 3ASUS EZ DIY- ASUS O.C. Profile- ASUS CrashFree BIOS 3- ASUS EZ Flash 2- ASUS MyLogo 2Overclocking FeaturesPrecision Tweaker 2- vCore: Adjustable CPU voltage at 0.003125V increment- vChipset (VDDNB): Adjustable chipset voltage at 0.003125V increment- vDIMM: Adjustable DRAM voltage at 0.015V incrementSFS (Stepless Frequency Selection)- FSB tuning from 100MHz up to 550MHz at 1MHz increment- PCI Express frequency tuning from 100MHz up to 150MHz at 1MHz incrementOverclocking Protection- ASUS C.P.R.(CPU Parameter Recall)Special Features100% All High-quality Conductive Polymer CapacitorsBack Panel I/O Ports1 x PS/2 Keyboard/Mouse Combo port1 x DVI1 x D-Sub1 x HDMI1 x S/PDIF Out1 x LAN(RJ45) port8 -Channel Audio I/O2 x USB 3.0 ports (blue)4 x USB 2.0/1.1 portsInternal I/O Connectors4 x USB 2.0 connectors (8 ports)1 x COM connector1 x IDE connector6 x SATA 6Gb/s connectors1 x CPU Fan connector1 x Chassis Fan connectors1 x Front panel audio connector1 x S/PDIF Out Header1 x Core Unlocker Switch1 x MemOK! Button1x LPT connector24-pin ATX Power connector4-pin ATX 12V Power connector1 x System panel connectorBIOS16 Mb Flash ROM , AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.5, ACPI 2.0a, ASUS EZ Flash 2, ASUS CrashFree BIOS 3ManageabilityWOL by PME,WOR by PME,WOR by Ring,PXEAccessories1 x Ultra DMA 133/100/66 cable2 x Serial ATA 3 Gb/s cables2 x Serial ATA 6 Gb/s cables1 x Q-Connector (retail version only)1 x Q-Shield1 x User's manualSupport DiscDriversAnti-virus software (OEM version)ASUS UpdateASUS UtilitiesForm FactoruATX Form Factor9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm ) It is highly recommended to always use the most recent driver version available.Do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games.Try to set a system restore point before installing a device driver. This will help if you installed a wrong driver. Problems can arise when your hardware device is too old or not supported any longer.