• Form Factor: microATX
• Size: 244*230mm
• Layer: 4 layers
• Rear I/O Panel: ECS Rear I/O panel

• Type: 1.5G/1.6G/1.7G…2.8G and above
• Socket type: P4 Socket478
• FSB Speed: 400/533/800MHz 1.3.
• Chipsets North Bridge: SiS661FX South Bridge: SiS964 / 964L LPC
• Super I/O: ITE8705F AC’97
• Audio Codec: ALC655
• LAN: RTL8100C IEEE1394: VT6307

• Module Speed: DDR266 / DDR333/ DDR400
• Socket Type: Two DDR 184-pin unbuffered DIMM sockets
• Maximum Memory size: 2GB.

SF2 Internal Specification Ver 1.1 4

• North Bridge: SiS661FX Host interface controller.
• Intel® Pentium® 4 processor family with data transfer rate
• Hyper-Threading Technology
• 12 outstanding transactions and out-of-order completion
• Quasi-synchronous/as ynchronous Host-to-DRAM timing AGTL+ & AGTL compliant bus driver with auto compensation DRAM controller
• DDR400/DDR333/DDR266 SDRAM Supports up to 2 un-buffered DIMM DDR400 Up to 1 GB per DIMM with maximum memory size
• 32Mb, 64Mb, 128Mb, 256Mb, 512Mb, 1Gb SDRAM technology with page size from 2KB up to 32 KB
• DDR SDRAM CAS Latency at options of 2, 2.5, & 3 clocks
• Suspend-To-RAM (STR).

AGP controller

• AGP 3.0 compliant.
• 1.5V AGP Interface
• Graphic Window Size from 4Mbytes to 512Mbytes
• Pipelined process in CPU-to-AGP Access
• AGP 8X/4X Interface w/ Fast Write Transaction High Throughput
• SiS MuTIOL® 1G interconnecting to SiS964 MuTIOL® 1G Media I/O Bi-directional 16 bit data bus
• Perform 1GB/s bandwidth in 133MHz x 4 mode

South Bridge: SiS964 / 964L

• Support Hi-Precision Event Timer (HPET) for Microsoft Windows
• Multiple DMA Bus Architecture Concurrent servicing of all DMA Devices: Dual IDE Controllers, SATA controller, USB 1.1 HC, USB 2.0 HC, MAC Controller and Audio/Modem DMA Controller.
• Separate 32 Bit Input and Output Data Bus Scheme for each DMA Device
• Support isochroous request and continuous packet transmission
• Integrated MuTIOL 1G to PCI Bridge PCI 2.3 Specification Compliance Supports up to 6 PCI Masters Each PCI request can be programmed at one of four level priority
• Dual IDE Master/Slave controller
• Integrated Multithreaded I/O Link Mastering with Read Pipelined Streaming Dual Independent IDE Channels Each with 32 DW FIFO
• Supports PIO mode 0,1,2,3,4 and Multiword DMA mode 0,1,2.
• Supports Ultra DMA 33/66/100/133. Serial ATA Host Controller (SiS964L without SATA Host Controller) Two independent ports and flexible channel allocation Compliant with Serial ATA 1.0 Specification Ultra DMA 150
• Support Power saving mode

Integrated Audio Controller with AC97 Interface:

• AC'97 v2.2 compliance 6 channels of AC97 speaker outputs and V.90 HSP-Modem
• AC’97 Audio Codec Compliant with AC'97 v2.2 specification
• 18-bit stereo full-duplex CODEC with independent and variable sampling rate
• Advanced power management 48-pin LQFP

• 32-bit floating point format VLIW triangle setup engine
• 2 pixel rendering pipelines and 4 texture units
• Ultra-AGPIITM up to 2.7GB/s bandwidth
• Up to 166 MHz 3D engine clock speed
• 16/24/32 bits integer Z buffer format and 32 bits floating point Z format
• Supports up to 2048x2048 texture size MPEG-2/1
• Video Decoder MPEG-2 ISO/IEC 13818-2 MP@HL and MPEG-1 ISO/IEC 11172-2 standards compliant
• Advanced hardware DVD acceleration logic
• Up to 20 Mbit/sec bit rate decoding Support VCD, DVD and HDTV (all ATSC modes) decoding Direct DVD to TV playback
• Video Accelerator Supports YUV-to-RGB color space conversion
• Bi-linear video interpolation with integer increments of 1/2048
• RGB555, RGB565, YUV422, and YUV420 video playback format
• Independent Gamma correction RAM Supports Direct Draw Drivers High Integration
• CRT FIFOs to support ultra high resolution graphics modes and reduce CPU wait-state
• Two clock generators for CRT, 2D, 3D and MPEG Engine
• TV Encoder Interface

• IDE Headers: Two 40-pin IDE low profile headers
• Devices: Up to 4 IDE devices Speed: PIO mode, ATA100/133 1.8. Serial ATA
• Revision: Serial ATA V1.0 Compliant
• Connectors: Two 7-pin SATA connectors
• Devices: Up to 2 SATA devices
• Speed: 1.5Gbps 1.9. Audio Connectors and Headers Real Audio
• Connector: Line Out, Line In, Microphone In
• One CD-in header (4*1)
• One Aux-in header (4*1)
• One Intel® specification audio header (5*2) 1.10.

USB / 1394 connectors and headers

• USB Revision: USB V2.0 Compliant
• Connector: Two rear USB connector with 4-ports in rear I/O panel
• Header: Two Intel specification USB header (5*2) with 4-ports in front I/O 1394
• Speed: 400Mbps
• Connector: One rear connector with 1-port in rear I/O panel
• Header: One Intel specification 1394 header (5*2) with 1-port in front I/O