CPUIntel Socket 775 Core2 Quad/Core2 Extreme/Core2 Duo/Pentium dual-core/Celeron dual-core /Celeron ProcessorsSupport 45nm multi-core CPUIntel Hyper-Threading Technology readySupport Enhanced Intel SpeedStep Technology (EIST)ChipsetIntel G41 / ICH7Front Side Bus1333/1066/800 MHzMemory2 x DIMM, DDR3 1333 (O.C.) / 1066 / 800 MHz2 x DIMM, DDR2 1066 (O.C.) / 800 / 667 MHzDual channel, Max. 8 GB, Non-ECC, Un-buffered memoryExpansion Slots1 x PCIe x161 x PCIe x12 x PCIVGAIntegrated Intel GMA X4500 graphicsSupports HDMI with max. resolution 1920 x 1080(@ 60Hz)Supports RGB with max. resolution 2048 x 1536 (@75Hz)Supports Microsoft DirectX 10Storage Southbridge1 xUltraDMA 100/66/334 xSATA 3 Gb/s portsLANPCIE Gb LANAudioALC887 8-Channel High-Definition Audio CODEC*Choose the chassis with HD audio module in front panel to support 8-Channel audio outputUSB8 USB 2.0/1.1 ports (4 ports at mid-board, 4 ports at back panel)ASUS Unique FeaturesASUS CrashFree BIOS 3ASUS AI NET2ASUS Q-FanASUS EZ Flash 2ASUS MyLogo 2ASUS Anti-SurgeASUS Turbo KeyASUS Express GateASUS EPU 4 EngineSpecial Features100% All High-quality Conductive Polymer CapacitorsBack Panel I/O Ports1 x VGA1 x PS/2 Keyboard1 x HDMI1 x PS/2 Mouse1 x S/PDIF Out (optical)1 x LAN(RJ45) port4 x USB 2.0/1.13 x Audio jacksInternal I/O Connectors2 x USB connectors support additional 4 USB ports1 x CPU Fan connector1 x Chassis Fan connector1 x Front panel audio connector1 x S/PDIF Out connector1 x 24-pin EATXPWR Power connector1 x 4-pin ATX 12V Power connector4 x Serial ATA connectors1 x System Panel connector1 x IDE connector1 x Parallel port1 x COMBIOS8 Mb Flash ROM , AMI BIOS, PnP, DMI 2.0, Wfm2.0, ACPI 2.0a, SMBIOS 2.5AccessoriesUser's manual1 x I/O Shield2 x SATA cable(s)1 x UltraDMA 100/66/33 cableSupport DiscDriversASUS PC Probe IIAnti-virus software (OEM version)ASUS UpdateForm FactoruATX Form Factor9.6 inch x 8.8 inch ( 24.4 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.