CPUAMD Socket AM3 ;PhenomII /AthlonII /Sempron 100 Series ProcessorsAMD Cool 'n' Quiet TechnologyAMD 64 architecture enables simultaneous 32-bit and 64-bit computingChipsetNVIDIA nForce 630aSystem BusUp to 2000/1600 MT/sMemory4 x DIMM, Max. 16 GB, DDR3 1800(O.C.)/1600(O.C.)/1333/1066 ECC,Non-ECC,Un-buffered MemoryDual Channel memory architectureExpansion Slots1 x PCIe x162 x PCIe x14 x PCIStorage Southbridge1 xUltraDMA 133/1004 xSATA 3 Gb/s ports Support RAID 0,1,5,10,JBODLANGb LANAudioVT1708S High Definition Audio 8-Channel CODEC*Choose the chassis with HD audio module in front panel to support 8-Channel audio output- Support S/PDIF out interface- Support Multi-streaming,Single SPDIF Out, Anti-pop FunctionUSB10 USB 2.0/1.1 ports (6 ports at mid-board, 4 ports at back panel)ASUS Unique FeaturesCore UnlockerAnti SurgeEPU-4 EngineExpress GateQ-FanCrashFree BIOS 3EZ Flash 2AI NET 2MyLogo 2Overclocking FeaturesIntelligent overclocking tools- ASUS Turbo KeySFS (Stepless Frequency Selection)- PCI Express frequency tuning from 100MHz up to 150MHz at 1MHz increment- HT tuning from 200MHz up to 300MHz at 1MHz incrementOverclocking Protection- ASUS C.P.R.(CPU Parameter Recall)Special Features100% All High-quality Conductive Polymer CapacitorsBack Panel I/O Ports1 x Parallel port3 x Audio I/O1 x PS/2 Keyboard1 x PS/2 Mouse1 x LAN(RJ45) port4 x USB 2.0/1.11 x COM portInternal I/O Connectors3 x USB connectors (6 ports)1 x IDE connector4 x SATA connectors1 x CPU Fan connector1 x Chassis Fan connector1 x S/PDIF Out connector1 x Front panel audio connector1 x Internal speaker connector1 x 24-pin ATX Power connector1 x 4-pin ATX 12V Power connector1 x System Panel connectorBIOS8 Mb Flash ROM , AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.5, ACPI 2.0AccessoriesUser's manual1 x I/O Shield1 x UltraDMA 133/100/66 cable2 x SATA cable(s)Support DiscDriversASUS PC Probe IIAnti-virus software (OEM version)ASUS UpdateForm FactorATX Form Factor12 inch x 8.2 inch ( 30.5 cm x 20.8 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.