CPUIntel Socket 775 Core2 Quad/Core2 Extreme/Core2 Duo/Pentium dual-core/Celeron dual-coreSupport Intel 45nm Multi-Core CPUChipsetIntel P43 / Intel ICH10RFront Side Bus 1600(O.C)/1333/1066/800 MHzMemory4 x240-pin DIMM, Max. 16 GB, DDR3 1600(O.C.)/1333/1066/800 Non-ECC,Un-buffered MemoryDual Channel memory architecture* Supports one DIMM per channel only when overclocking to 1600MHz.Expansion Slots1 x PCIe x162 x PCIe x13 x PCIStorageIntel ICH10R controller6 xSATA 3 Gb/s ports Support RAID 0,1,0+1,5JMicron JMB361 PATA and SATA controller1 xUltraDMA 133/100/661 xExternal SATALANL1E Gb LANAudioALC887 High Definition Audio 8-Channel CODECAudio Jack-detect/Multi-Streaming TechnologySupport S/PDIF outputUSB12 USB 2.0/1.1 portsSpecial FeaturesTurbo KeyEPU-4 EngineASUS Express GateASUS EZ Flash2ASUS Q-FanASUS MyLogo2100% All High-quality Conductive Polymer CapacitorsBack Panel I/O Ports1 x Parallel port1 x External SATA1 x S/PDIF Out (Optical)1 x IEEE 1394a1 x LAN(RJ45) port1 x COM port8 -Channel Audio I/O1 x PS/2 KB/MSInternal I/O Connectors3 x USB connectors support additional 6 USB 2.0 ports1 x IDE connector6 x SATA connectors1 x S/PDIF output connector1 x System Panel connector1 x Front Panel Audio connector1 x CPU/ 1 x Chassis/1 x Power FAN connectors1 x CD audio in connector1 x 24-pin EPS12V Power connector1 x 4-pin ATX 12V Power connectorBIOS8 Mb Flash ROM AMI BIOS, Special H/W write protection, PnP, DMI v2.0, WfM2.0, SMBIOS v2.5, ACPI v2.0aManageabilityWOL by PME,WOR by PME,WOR by RingAccessoriesUser's manual1 x I/O Shield1 x UltraDMA 133/100/66 cable2 x SATA cable(s)Support DiscDriversASUS PC Probe IIASUS LiveUpdate UtilityBundle SoftwareForm FactorATX Form Factor12 inch x 8.8 inch ( 30.5 cm x 22.4 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.