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VIA K8T800

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South Bridge

» VIA VT8237R Plus

VIA K8T800 - Powering the AMD64 Revolution

This product is available fully ROHS-compliant.

The VIA K8T800 chipset with Hyper8 technology is powering next generation 64-bit compatible platforms based around AMD Opteron™ and new Athlon™ 64 processors, including Dual Opteron™ processor based workstations and servers, and Athlon™64 processor based performance PC platforms. Combined with the VIA VT8237R Plus South Bridge and VIA companion chips, the K8T800 enables an unparalleled range of cutting edge I/O and multimedia features, including an 1.6GHz HyperTransport Bus Link, AGP 8X, Native Serial ATA/RAID, 7.1-surround audio, and Gigabit Ethernet.

The HyperTransport link between the AMD64 processor and chipset provides a 16-bit/1.6GHz data transfer rate for a total bandwidth of 6.4GB/s. To counter the massive data loads and high propensity for signal interference of a 16-bit/1.6GHz link, several AMD64 supporting motherboards currently available feature a below-spec HyperTransport implementation. By reducing the processor-to-chipset HyperTransport link to deal with signal interference, total bandwidth is reduced from 6.4GB/s to as little as 3.2GB/s. With support for VIA's unique Hyper8™ technology the VIA K8T800 enables the industry's first full 16-bit/1.6GHz implementation of the HyperTransport bus for the AMD64 platform, ensuring AMD Opteron and AMD Athlon 64 processor based systems achieve their full performance potential.

Featuring the VIA DriveStation™ Controller Suite, the VIA VT8237R Plus South Bridge provides the most comprehensive support high-performance integrated storage interface technologies available on the market today. In addition to enabling high-speed 150MB/s dual channel connections to Serial ATA Hard Drives while retaining support for up to four Parallel ATA-133 devices, it combines exceptionally fast disk data transfer rates and optimal data integrity with easy installation and manageability through V-RAID, the first native RAID controller integrated into a South Bridge supporting multiple RAID Level 0, RAID Level 1, RAID 0+1, and JBOD configurations.

The VT8237R Plus also features the VIA Vinyl™ Multichannel Audio Suite for superlative integrated and onboard 5.1 and 7.1 surround sound, and offers a host of high-bandwidth connectivity options, including support for the VIA Gigabit Ethernet companion chip, integrated 10/100Mbps Fast Ethernet and up to eight high-speed USB 2.0 ports.

The K8T800 benefits from VIA's unique V-MAP (VIA Modular Architecture Platform) architecture that facilitates faster product development and speeds up time to market, and features the high-throughput V-Link interconnect running at speeds of up to 533 MB/s between the North and South Bridge.


Features of VIA K8T800

Feature
VIA K8T800
North Bridge  
Processor Support

AMD Athlon™64, Athlon™64FX & Opteron™ Single/Dual Processor Support

Front Side Bus 800MHz (Upstream & Downstream) HyperTransport Bus Link
Memory Support

64-bit/128-bit Single/Dual Channel DDR memory controller integrated directly into processor

AGP Support AGP4X/8X
Memory Type DDR266/333/400
Max. Memory 4.0GB
South Bridge VIA VT8237R Plus
North/South Bridge Link 8X V-Link (533MB/sec)
Audio

VIA Vinyl™ 6-channel Audio (AC'97 integrated)

VIA Vinyl™ Gold 8-channel Audio (PCI companion controller)

Network

VIA Velocity™ Gigabit Ethernet (PCI companion controller)

VIA integrated 10/100 Fast Ethernet

Modem MC'97
PCI Devices/Slots

6 slots

Dual PCI-X bus support through VIA VPX2 I/O expansion bridge

SATA

Dual Channel Serial ATA supports 2 SATA devices

SATALite™ interface for two additional SATA devices 4 total)

V-RAID RAID 0, RAID 1, and RAID 0+1* & JBOD (SATA)
PATA Parallel ATA133 (up to 4 devices)
USB 8 ports
I/O Protocols I/O APIC / LPC Super I/0
Power Management ACPI/APM/PCI/PM

Benefits of VIA K8T800

VIA Hyper8™ Technology
VIA's unique Hyper8 technology eliminates noise on the HyperTransport link between the processor and chipset, enabling the industry's only full-speed, full-spec 16-bit/1.6GHz implementation of the processor-to-chipset HyperTransport link.

VIA Modular Architecture Platform
To best exploit the rapid pace of innovation in the PC industry, particularly with reference to I/O technology, VIA have opted for a classic North/South Bridge configuration allowing for the most scalable mainboard design, enabling new functionality to be integrated in an expedient and practical manner, thus providing the fastest time to market with new features and system performance enhancements.

Native Serial ATA/RAID Support
The VIA DriveStation™ Controller Suite with native dual channel Serial ATA/RAID controller, provides direct support for two 150MB/s Serial ATA devices and its unique SATAlite™ interface expands support for two additional SATA devices. The V-RAID controller features native RAID 0, RAID 1, RAID 0+1* and JBOD, ensuring optimum data integrity and system performance. The user friendly V-RAID software interface enables easy disk array configuration and management.

VIA Vinyl Multichannel Audio Suite
Delivering rich, warm surround sound at resolutions as high as 24/96 through up to six- or eight-channel outputs, the VIA Vinyl Audio 5.1 surround sound and VIA Vinyl Gold Audio 7.1 surround sound enables crisp, clear performance, representing the highest levels of audio quality in a mainstream integrated or onboard solution.

Unified VIA Hyperion 4in1 Drivers
VIA's unified approach to drivers has been established for eight generations of chipsets, allowing end users to benefit from seamless hardware and software compatibility.

* RAID Level 0+1 requires four Serial ATA drives; support for the two additional drives can only be implemented with two external Serial ATA ports enabled through a SATALite PHY.


Block Diagram

Key Features

» Supports full range of AMD Opteron/Athlon64 processors
» Hyper8 Technology enables 16-bit/1.6GHz HyperTransport processor-to-chipset link
» Support for AGP 8X/4X
» V-Link 533 MB/sec high bandwidth North/South Bridge interconnect
» Support for VIA Vinyl 5.1 & Vinyl Gold 7.1 Multichannel Audio Suite
» Serial ATA support for up to 4 devices
» Integrated V-RAID with RAID 0, RAID 1, RAID 0+1*, and JBOD (SATA) support
» Parallel ATA133/100/66 support for up to 4 devices
» Support for up to 8 USB 2.0/USB 1.1 ports, UHCI compliant
» Support for VIA Gigabit Ethernet companion controller & Integrated 10/100 Fast Ethernet
» Integrated MC'97 Modem
» Advanced power management capabilities including ACPI/OnNow
» 578-pin BGA North Bridge
» 539-pin BGA VT8237R Plus South Bridge


Resources

VIA K8 Series chipset comparison chart / Download printer friendly .pdf version
VIA K8T800 press release
VIA K8 Series presentation
VIA K8 Series product brochure
Hyper8™ Technology
Achieving the full performance potential of the chipset. » Learn more ...
Power Systems
An incredible line-up of VIA K8T800 based high performance systems has given gamers and enthusiasts a clear advantage on the AMD Athlon 64 platform. » Learn more...
The Running Man
See the K8 Series and Hyper8™ outpacing the pack… » Download video!
VIA K8T800 image kit

Tech Support

If you should have problems or questions setting up or running your VIA product, we offer comprehensive technical support here and you can find the latest device drivers, as well as helpful forums to discuss and solve your problems.


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