Table of Contents
Advertisement
1
Chapter 1
Introducing the Motherboard
Introduction
Thank you for choosing the 648FX-A2 motherboard. This motherboard is a high perfor-
mance, enhanced function motherboard that supports Socket 478 Pentium 4 processors for
high-end business or personal desktop markets.
The motherboard incorporates the SiS648FX Northbridge (NB) and SiS964/964L Southbridge
(SB) chipsets. The SiS648FX Northbridge chipset features the AGTL & AGTL+ compliant
bus driver technology with integrated on-die termination to support Intel Pentium 4 series
processors with FSB 800/533/400 MHz. The memory controller supports DDR only. It
can offer bandwidth up to 3.2 GB/s under DDR 400 to sustain the bandwidth demand from
host processors, as well as the multi I/O masters and AGP masters.
The SiS964/964L Southbridge supports Hi-Precision Event Timer (HPET) for Microsoft
Windows with multiple DMA bus architecture that supports isochroous request and continu-
ous packet transmission. It implements an EHCI compliant interface that provides 480Mb/
s bandwidth for eight USB 2.0 ports, integrates AC'97 v2.3 compliant audio controller that
features a 6-channels of audio speaker out and HSP v.90 modem support. The Southbridge
integrates a Serial ATA host controller that is SATA v1.0 compliant, supporting Ultra DMA
150 (SiS964 only). SiS964/964L provide dual independent IDE channels and each of them
support PIO mode 0,1,2,3,4 and multiword DMA mode 0,1,2 and UltraDMA 133/100/66.
The 648FX-A2 motherboard is equipped with advanced full set of I/O ports in the rear
panel, including PS/2 mouse and keyboard connectors, COM1, LPT1, four USB ports, one
optional LAN port, and audio jacks for microphone, line-in and line-out.
Introducing the Motherboard
Advertisement
Table of Contents
