ECS Elitegroup 755FX-A939 [7/83] Chapter 1 introducing the motherboard

Introducing the Motherboard

Chapter 1

Introducing the Motherboard

Introduction

Thank you for choosing the 755FX-A939 motherboard. This motherboard is a high perfor-

mance, enhanced function motherboard that supports Socket 939 AMD Sempron/Athlon

64/Athlon 64 FX and CPUs for high-end business or personal desktop markets.

The motherboard incorporates the SiS755 Northbridge (NB) and SiS964 Southbridge (SB)

chipsets. The SiS755 Northbridge features the HyperTranport

complaint bus driver

technology to support AMD Athlon 64 processors. The Northbridge supports external

AGP slot with AGP 8X/4X capability and Fast Write Transactions. Plus, SiS MuTIOL, a

high bandwidth and mature technology, is incorporated to connect SiS755 and SiS964

MuTIOL Media IO together.

The SiS964 Southbridge supports Hi-Precision Event Timer (HPET) for Microsoft Win-

dows with multiple DMA bus architecture that supports isochroous request and continuous

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-channel audio speaker out and HSP v.90 modem support. The Southbridge

integrates a Serial ATA host controller that is SATA v1.0 compliant, supporting two SATA

ports with maximum transfer rate up to 150 MB/s each. It provides 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.

There is an advanced full set of I/O ports in the rear panel, including PS/2 mouse and

keyboard connectors, COM1, LPT1,VGA port and four USB ports, one optional LAN port,

and audio jacks for microphone, line-in, and line-out. This motherboard is designed in an

ATX form factor using a four-layer printed circuit board and measures 305 mm x 220 mm.