CPU Intel Socket 775 Core2 Quad/Core2 Extreme/Core2 Duo/Pentium dual-core/Celeron dual-core/Celeron Processors Support 45nm multi-core CPU Intel Hyper-Threading Technology ready Support Enhanced Intel SpeedStep Technology (EIST) Chipset Intel G41 / ICH7 Front Side Bus 1333/1066/800 MHz Memory 2 x DIMM, Max. 8 GB, DDR3 1333(O.C.)/1066/800 Non-ECC,Un-buffered Memory Dual Channel memory architecture Expansion Slots 1 x PCIe x16 2 x PCIe x1 3 x PCI Storage Southbridge 1 xUltraDMA 100/66/33 4 xSATA 3 Gb/s ports LAN PCIE Gb LAN Audio ALC662 6-Channel High-Definition Audio CODEC USB 8 USB 2.0/1.1 ports (4 ports at mid-board, 4 ports at back panel) ASUS Unique Features ASUS CrashFree BIOS 3 ASUS AI NET2 ASUS Q-Fan ASUS EZ Flash 2 ASUS MyLogo 2 ASUS Turbo Key ASUS Express Gate ASUS EPU-L Back Panel I/O Ports 1 x Parallel port 1 x PS/2 Keyboard 1 x PS/2 Mouse 1 x LAN(RJ45) port 4 x USB 2.0/1.1 1 x COM port 6 -Channel Audio I/O Internal I/O Connectors 2 x USB connectors support additional 4 USB ports 1 x CPU Fan connector 1 x Chassis Fan connector 1 x Front panel audio connector 1 x S/PDIF Out connector 1 x 24-pin EATXPWR Power connector 1 x 4-pin ATX 12V Power connector 4 x Serial ATA connectors 1 x System Panel connector 1 x IDE connector 1 x Internal speaker connector BIOS 8 Mb Flash ROM , AMI BIOS, PnP, DMI 2.0, Wfm2.0, ACPI 2.0a, SMBIOS 2.5 Manageability WOL, PXE, RPL, WOR by Ring, PME Wake Up Accessories 1 x UltraDMA 100/66/33 cable 2 x SATA cables I/O Shield User's manual Support Disc Drivers ASUS PC Probe II Anti-virus software (OEM version) ASUS Update Form Factor ATX Form Factor 12 inch x 7.2 inch ( 30.5 cm x 18.3 cm ) 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.