ASRock Instant Boot Instant Flash Smart BIOS OC Tuner Intelligent Energy Saver LGA 775 for Intel Core 2 Extreme / Core 2 Quad / Core 2 Duo / Pentium Dual Core / Celeron Dual Core / Celeron, supporting Penryn Quad Core Yorkfield & Dual Core Wolfdale processors Compatible with all FSB1600*/1333/1066/800 MHz CPUs Supports CPU up to 105W Supports Hyper-Threading Technology Supports Untied Overclocking Technology Supports EM64T CPU Chipset Northbridge: Intel G31 Southbridge: Intel ICH7 Memory Dual Channel DDR2 memory technology 2 x DDR2 DIMM slots Supports DDR2 800/667 non-ECC, un-buffered memory Max. capacity of system memory: 8GB* BIOS 4 Mb AMI BIOS AMI Legal BIOS Supports " Plug & Play" ACPI 1.1 Compliance Wake Up Events SMBIOS 2.3.1 Support VCCM Voltage Multi-adjustment Supports Smart BIOS Graphics Intel Graphics Media Accelerator 3100 Pixel Shader 2.0, Direct X 9.0 Max. shared memory 384MB Supports D-Sub with max. resolution up to 2048x 1536 @ 60 Hz Audio 5.1 CH Windows Vista Premium Level HD Audio (Realtek ALC662 Audio Codec) LAN PCIE x 1 Gigabit LAN 10/100/1000 Mb/s Realtek RTL8111DL Supports Wake-On-LAN Slots 1 x PCI Express x 16 slot 1 x PCI Express x 1 slot 2 x PCI slots Connector 4 x SATAII 3.0 Gb/s connectors (No support for RAID & " Hot Plug" functions) 1 x ATA100 IDE connector (supports 2 x IDE devices) 1 x Floppy connector 1 x Print port header CPU/ Chassis FAN connector 24 pin ATX power connector 4 pin 12V power connector Front panel audio connector 2 x USB (Universal Serial Bus) 2.0 headers (support 4 USB (Universal Serial Bus) 2.0 ports) Rear Panel I/O 1 x PS/2 Mouse Port 1 x PS/2 Keyboard Port 1 x Serial Port: COM1 1 x VGA Port 4 x Ready-to-Use USB (Universal Serial Bus) 2.0 Ports 1 x RJ-45 LAN Port with LED (ACT/LINK LED & SPEED LED) HD Audio Jack: Line in / Front Speaker / Microphone Unique Feature ASRock OC Tuner Intelligent Energy Saver Instant Boot ASRock Instant Flash Hybrid Booster: CPU Frequency Stepless Control ASRock U-COP Boot Failure Guard (B.F.G.) Hardware Monitor CPU Temperature Sensing Chassis Temperature Sensing CPU Fan Tachometer Chassis Fan Tachometer CPU Quiet Fan Voltage Monitoring: +12V, +5V, +3.3V, CPU Vcore Form Factor Micro ATX Form Factor: 9.6-in x 7.2-in, 24.4 cm x 18.3 cm