CPU Intel Socket 775 Core2 Quad/Core2 Extreme/Core2 Duo/Celeron E1000 Series and 400 Series CPU Support Intel 45nm Multi-Core CPU Support Enhanced Intel SpeedStep Technology (EIST) Chipset Intel G41 /ICH7 Front Side Bus 1333/1066/800 MHz Memory 2 x240-pin DIMM, Max. 8 GB, DDR2 1066(O.C.)/800/667 Non-ECC,Un-buffered Memory Dual Channel memory architecture Expansion Slots 1 x PCIe x16 1 x PCIe x1 2 x PCI VGA Integrated Intel Graphics Media Accelerator (Intel GMA X4500) Supports Microsoft DirectX 10 Supports RGB with max. resolution 2048 x 1536@75Hz Supports DVI/HDMI with max. resolution 1920 X 1200 @60Hz Storage Intel ICH7 controller 1 xUltraDMA 100/66 4 xSATA 3 Gb/s ports LAN Atheros L1E PCIE Gb LAN controller Audio ALC887 High Definition Audio 8-Channel CODEC Supports Jack-detect and Multi-Streaming teconologies Support optical S/PDIF output USB 8 USB 2.0/1.1 ports Overclocking Features SFS (Stepless Frequency Selection) - FSB tuning from 200MHz to 800MHz at 1MHz increment Overclocking Protection - ASUS C.P.R.(CPU Parameter Recall) Special Features ASUS MyLogo 2 ASUS EZ Flash 2 ASUS CrashFree BIOS 3 ASUS AI NET 2 ASUS Q-Fan ASUS Turbo Key EPU 4-Engine Back Panel I/O Ports 1 x DVI 1 x VGA 1 x PS/2 Keyboard 1 x HDMI 1 x PS/2 Mouse 1 x S/PDIF Out (Optical) 1 x LAN(RJ45) port 4 x USB 2.0/1.1 8 -Channel Audio I/O Internal I/O Connectors 2 x USB connectors support additional 4 USB 2.0 ports 1 x IDE connector 4 x SATA connectors 1 x S/PDIF Out connector 1 x CPU/1 x Chassis/ 1 x Power FAN connectors COM connector System Panel connector 1 x CD audio in connector 1 x High Definition front panel audio connector 1 x Printer 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, SMBIOS v2.5, ACPI v2.0a Manageability WOL by PME,WOR by PME,WOR by Ring O/S Compatibility Windows Vista Windows XP Accessories User's manual 1 x I/O Shield 1 x SATA cable(s) 1 x UltraDMA 100/66 cable Support Disc Drivers ASUS PC Probe II ASUS LiveUpdate Utility Intel IT Director Form Factor uATX Form Factor 9.6 inch x 8.2 inch ( 24.4 cm x 20.8 cm )