CPU Support for an Intel Core 2 Extreme processor/ Intel Core 2 Quad processor/ Intel Core 2 Duo processor/ Intel Pentium processor/ Intel Celeron processor in the LGA775 package L2 cache varies with CPU (Please refer "CPU Support List" on the Gigabyte website for more information.) Front Side Bus 1333/1066/800 MHz FSB Chipset North Bridge: Intel G41 Express Chipset South Bridge: Intel ICH7 Memory 2 x 1.5V DDR3 DIMM sockets supporting up to 8 GB of system memory * Due to Windows 32-bit operating system limitation, when more than 4 GB of physical memory is installed, the actual memory size displayed will be less than 4 GB. Dual channel memory architecture Support for DDR3 1333 (O.C.)/1066/800 MHz memory modules (Please refer " Memory Support List" on Gigabyte website for more information.) Onboard Graphics North Bridge: 1 x D-Sub port Audio VIA audio codec High Definition Audio 2/4/5.1/7.1-channel * To configure 7.1-channel audio, you have to use an HD front panel audio module & enable the multi-channel audio feature through the audio driver. LAN 1 x Realtek RTL8111E chip (10/100/1000 Mbit) Expansion Slots 1 x PCI Express x 16 slot, running at x 16 1 x PCI Express x 1 slot 2 x PCI slots Storage Interface South Bridge: 1 x IDE connector supporting ATA-100/66/33 & up to 2 IDE devices 4 x SATA 3 Gb/s connectors supporting up to 4 SATA 3 Gb/s devices USB (Universal Serial Bus) South Bridge: Up to 8 USB (Universal Serial Bus) 2.0/1.1 ports (4 ports on the back panel, 4 ports available through the internal USB (Universal Serial Bus) headers) Internal I/O Connectors 1 x 24-pin ATX main power connector 1 x 4-pin ATX 12V power connector 1 x IDE connector 4 x SATA 3 Gb/s connectors 1 x CPU fan header 1 x system fan header 1 x front panel header 1 x front panel audio header 2 x USB (Universal Serial Bus) 2.0/1.1 headers 1 x clearing CMOS jumper Back Panel Connectors 1 x PS/2 keyboard port 1 x PS/2 mouse port 1 x parallel port 1 x serial port 1 x D-Sub port 4 x USB (Universal Serial Bus) 2.0/1.1 ports 1 x RJ-45 port 3 x audio jacks (Line In/ Line Out/ Microphone) I/O Controller i TE IT8720/IT8718 chip H/W Monitoring System voltage detection CPU temperature detection CPU/ System fan speed detection CPU overheating warning CPU/ System fan fail warning CPU fan speed control * Whether the CPU fan speed control function is supported will depend on the CPU cooler you install. BIOS 2 x 8 Mbit flash Use of licensed AWARD BIOS Support for Dual BIOS Pn P 1.0a, DMI 2.0, SM BIOS 2.4, ACPI 1.0b Unique Features Support for @BIOS Support for Q-Flash Support for Xpress BIOS Rescue Support for Download Center Support for Xpress Install Support for Xpress Recovery 2 Support for Easy Tune * Available functions in Easy Tune may differ by motherboard model. Support for Easy Energy Saver * Due to the hardware limitation, you must install the Intel Core 2 Extreme/ Core 2 Quad/ Core 2 Duo/ Pentium Dual-Core/ Celeron Dual-Core/ Celeron 400 Series CPU to enable support for Easy Energy Saver. Support for Smart Recovery Support for ON/OFF Charge Support for 3TB+ Unlock Support for Q-Share Operating System Support for Microsoft Windows 7/ Vista/XP Form Factor Micro ATX Form Factor; 24.4cm x 19.4cm