The SiS661FX chipset provides a high performance host interface for the Intel® Pentium® 4 processor, and supports AGP 8X, 800MHz front side bus, and DDR400. The SiS661FX features the SiS HyperStreaming™ Engine that smartly manages data streams between peripherals, core logic chipsets, front side bus, memory and graphic interfaces. This technology dramatically optimizes and improves the entire computer system performance.

Providing I/O and peripheral support is the SiS964 southbridge. The southbridge is a subsystem that integrates various I/O functions including dual-channel ATA133 bus master IDE, USB 2.0/1.1, Ethernet, and audio controllers. The SiS964 provides LPC and AC’97 interfaces, and complies with the Advanced Power Management (APM) 1.2 specification. The SiS964 interconnects with the northbridge at up to 1GB/s using the SiS proprietary MuTIOL® bus interface.

DDR400 support

The motherboard supports up to 2GB of system memory using DDR400/333/266 non-ECC DDR DIMMs to deliver up to 3.2GB/s data transfer rate for the latest 3D graphics, multimedia, and Internet applications. See page 1-10.

Real256E integrated graphics

Embedded in the northbridge is the SiS Real256E integrated graphics with a

256-bit 3D engine and 2D graphics accelerator with a maximum 64MB shared display memory. The Real256E integrated graphics engine incorporates the UltraAGPII™ technology to provide a faster link between the built-in graphic engine and the northbridge memory controller. This technology boosts VGA throughput to up to 3.2GB/s to bring clearer and sharper images for your multimedia and graphic-intensive applications. The Real256E integrated graphics achieves a maximum resolution of 2048x1536 at 32bpp. See page 1-17.

Integrated 10/100 Mbps LAN controller

Onboard is the Realtek® LAN PHY that interconnects with the SiS964 southbridge LAN controller to fully support 10BASE-T/ 100BASE-TX Ethernet networking. See page 1-17.

6-Channel Audio solution

The motherboard uses an onboard audio CODEC that lets you enjoy high-quality 6-channel audio without having to buy advanced sound cards. See page 1-17.

Serial ATA technology

The motherboard supports the Serial ATA technology through the Serial ATA interfaces and the SIS 964 chipset. The SATA specification allows for thinner, more flexible cables with lower pin count, reduced voltage requirement, and up to 150 MB/s data transfer rate. See page 1-19 for details.

ASUS P4S800-MX SE motherboard

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