KKTT226666AA
CChhiippsseett IInnttrroodduuccttiioonn
Confidential and ProprietaryMainstream AMD DDR Elusive
Many Solutions on the Market
n
Chipsets from VIA, AMD, ALi, and SiS
g
No Clear Performance/Feature Set
n
Leader
Motherboard manufacturers hedging
g
their bets, developing for all chipsets
Platform fragmentation slowing the
n
acceptance of DDR on AMD platforms
OEMs, System Integrators, End Users,
g
Channel confused by lack of clear
platform leadership
Confidential and ProprietaryVIA Leads DDR Platform
Development
First available P6 bus DDR chipset
n
VIA Apollo pro266 first available DDR-
g
SDRAM chipset for Intel? Pentium? III
processors
First mass produced K7 bus DDR chipset
n
VIA Apollo KT266 first widely available DDR-
g
SDRAM chipset for AMD Athlon? and
Duron? processors
First available P7 bus DDR chipset
n
VIA Apollo P4X266 brings DDR-SDRAM to the
g
Pentium 4 platform for the first time
Confidential and ProprietaryThe Definitive AMD DDR Chipset
VIA Apollo KT266A eliminates the
n
doubt
Performance Driven Design
g
Established Motherboard Base
g
V-MAP Scalability and Flexibility
g
Confidential and ProprietaryKT266A Chipset Block Diagram
Confidential and ProprietaryPerformance Driven Design
Enhanced Memory
n
Controller
Supports DDR200/DDR266
g
Tightened Timings
g
Decreases latency, increases
g
effective bandwidth
Deeper Queuing
g
Allows more instructions “in
g
flight”, hiding latency
penalties
New Abilities
g
Can burst up to eight Quad
g
Words in a clock cycle
Confidential and ProprietaryVIA Modular Architecture Platform
V-MAP
n
Multiple Pin-to-Pin
g
Compatible South Bridge
options
Drop-in replacement for
g
KT266
Future Pin-to-Pin
g
Compatible North Bridge
migration options
Seamless product
n
transitions on a single
motherboard platform
Faster Time to Market
g
Lower Product
g
Development,
Validation, and
Production costs
Confidential and ProprietaryAMD DDR Chipset Comparison
Feature AMD760 KT266A SiS735
North Bridge AMD761 VT8366A SiS735

VIA KT266是一款由 VIA Technologies, Inc.（威盛科技股份有限公司）設(shè)計并生產(chǎn)的專用集成電路（Application-Specific Integrated Circuit, ASIC）芯片組，專為臺式機主板應(yīng)用設(shè)計，特別是在ATX架構(gòu)的個人計算機中。它在1990年代中期作為英特爾 Pentium Pro處理器的主流搭配出現(xiàn)，支持高速前端總線以及多通道內(nèi)存控制器等功能。 產(chǎn)品手冊通常會詳細介紹KT266的各項特性，包括但不限于： - 芯片組架構(gòu)和規(guī)格：描繪KT266如何與Pentium Pro處理器協(xié)同工作，提供對Socket 8針腳接口的支持，以及其前端總線速度（如60MHz或75MHz等）、內(nèi)存類型（如SDRAM、EDO DRAM）和容量的最大支持。 - BIOS和BIOS更新：包含關(guān)于如何通過BIOS設(shè)置來配置系統(tǒng)時鐘頻率、內(nèi)存刷新率、電源管理選項等重要參數(shù)的信息，以及芯片組固件的重要更新說明。 - I/O端口和支持功能：詳述主板上的各類I/O插槽（如PCI-E插槽、AGP插槽、IDE/SATA接口、PS/2接口、COM ports等），以及其他附加功能如AC'97音頻控制、整合網(wǎng)絡(luò)接口等。 - 內(nèi)存控制器詳細信息：包括內(nèi)存條的工作模式選擇、內(nèi)存帶寬計算方法以及如何優(yōu)化內(nèi)存性能等內(nèi)容。 - 兼容性和兼容硬件列表：列出KT266支持的各種外圍設(shè)備和擴展卡類型及其相關(guān)驅(qū)動程序要求。 由于實際的產(chǎn)品手冊可能已經(jīng)過時，獲取最新的技術(shù)規(guī)格和使用指南建議查閱VIA官網(wǎng)或者第三方電子技術(shù)資料庫以獲得最新版本的相關(guān)內(nèi)容。