CPU AMD Socket AM3 ;PhenomII /AthlonII /Sempron 100 Series Processors AMD 140W CPU Support AMD Cool 'n' Quiet Technology Supports 45nm CPU Chipset AMD 880G/SB850 System Bus Up to 5200 MT/s ; HyperTransport 3.0 Memory 4 x DIMM, Max. 16 GB, DDR3 2000(O.C.)/1333/1066 ECC,Non-ECC,Un-buffered Memory Dual Channel memory architecture *AMD AM3 100 and 200 series CPU support up to DDR3 1066MHz. *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 Slots 2 x PCIe 2.0 x16 , support ATI CrossFireX Technology (blue @ x16 mode,gray @ x4 mode) 1 x PCIe 2.0 x1 3 x PCI VGA Integrated ATI Radeon HD 4250 GPU - Supports HDMI Technology with max. resolution up to 1920 x 1200 (1080P) - Supports Dual-link DVI with max. resolution up to 2560x1600 @60Hz - Supports D-Sub with max. resolution up to 2048x1536 @85Hz - Dual independent displays support with HDMI / DVI and D-Sub - Supports DirectX 10.1, OpenGL 2.0, Shader Model 4.1, Universal Video Decoder (UVD) 2.0 - Hardware Decode Acceleration for H.264,VC-1, and MPEG-2 - Maximum shared memory of 1GB - Hybrid CrossFireX Support Integrated Memory - SidePort Memory - onboard 128MB DDR3 1333 memory Storage SB850 Chipset 5 xSATA 6.0 Gb/s ports with RAID 0, 1, 5, 10 and JBOD 1 x eSATA port (6Gb/s ready) VT6330 controller: - 1 x Ultra DMA 133/100/66 for up to 2 PATA devices LAN Realtek 8111E Gigabit LAN controller featuring AI NET2 Audio ALC892 8-Channel High Definition Audio CODEC IEEE 1394 VIA VT6330 controller supports 2 x 1394a port(s) (1 at mid-board; 1 at back panel) USB 12 USB 2.0/1.1 ports (8 ports at mid-board, 4 ports at back panel) 2 x USB 3.0 ports (blue, at back panel) ASUS Unique Features ASUS Xtreme Design ASUS Hybrid Processor – TurboV EVO - Turbo Unlocker, TurboV, Auto Tuning, CPU Level UP and GPU Boost ASUS Hybrid OS – Express Gate ASUS Hybrid Switches - Turbo Key II - Core Unlocker ASUS Exclusive Features - MemOK! - Anti-Surge protection ASUS Power Solutions: - 8+2 Phase Power Design - EPU ASUS Quiet Thermal Solution: - ASUS Fanless Design: Stylish heat sink solution - ASUS Fan Xpert ASUS EZ DIY: - ASUS CrashFree BIOS 3 - ASUS O.C. Profile - ASUS MyLogo 2 - ASUS EZ Flash 2 Overclocking Features Intelligent overclocking tools - TurboV EVO - GPU BOOST - Turbo Key II Precision Tweaker 2 - vCore: Adjustable CPU voltage at 0.003125V increment - vChipset (N.B.): Adjustable chipeset voltage at 0.003125V increment - vDIMM: Adjustable DRAM voltage at 0.015V increment SFS (Stepless Frequency Selection) - PCI Express frequency tuning from 100MHz up to 150MHz at 1MHz increment - HT frequency tuning from 100MHz up to 550MHz at 1MHz increment Overclocking Protection - ASUS C.P.R.(CPU Parameter Recall) Back Panel I/O Ports 1 x PS/2 Keyboard/Mouse Combo port 1 x DVI 1 x D-Sub 1 x HDMI 1 x S/PDIF Out (optical) 1 x IEEE 1394a 1 x LAN(RJ45) port 4 x USB 2.0/1.1 8 -Channel Audio I/O 2 x USB 3.0 ports (blue) 1 x eSATA port Internal I/O Connectors 4 x USB connectors (8 ports) 1 x IDE connector 1 x IEEE 1394a connector 1 x CPU Fan connector 1 x Chassis Fan connector 1 x Power Fan connector 1 x Core Unlocker switch 1 x Turbo Key II switch 1 x MemOK! Button 1 x COM connector 5 x SATA 6Gb/s connectors 1 x Front panel audio connector 1 x S/PDIF Out Header 24-pin ATX Power connector 8-pin ATX 12V Power connector System Panel BIOS 16 Mb Flash ROM , AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.5, ACPI 2.0a, ASUS EZ Flash 2, ASUS CrashFree BIOS 3 Manageability WOL by PME,WOR by PME,WOR by Ring,PXE Accessories User's manual 1 x UltraDMA 133/100/66 cable 4 x Serial ATA cables (2@6Gb/s, 2 @ 3Gb/s) 1 x Q-Connector (retail version only) 1 x Q-shield Support Disc Drivers ASUS PC Probe II Express Gate Anti-virus software (OEM version) ASUS Update AMD OverDrive Utility (AOD) Form Factor ATX Form Factor 12 inch x 9.6 inch ( 30.5 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.