VIA Technologies VT82C694X Pro User manual

694X PRO
(VIA VT82C694X、4 x AGP、PC-133)
ATX Form Factor
Main Board
User's Manual
(Ver.:1.0)

Copyright
Copyright© 2001 by this company. No part of this document may be
reproduced, transmitted, transcribed, stored in a retrieval system, or
translated into any language or computer language, in any form or
by any means without prior written permission. This manual and the
information contained herein are protected by copyright. All rights
reserved.
Manual version: 1.0
Ref. No. 3053321
Published in 2001

Warning and Disclaimer
This manual is designed to provide information about the Pentium®
II/III system board. Every effort has been made to make this manual
as accurate as possible, but no warranty or fitness is implied. All the
information is provided on an 'as is' basis. The author and his
corresponding publishing company shall have neither liability nor
responsibility to any person or entity with respect to any loss or
damages arising from the information contained in this manual or
from the use of the system board that accompanies it.
Information contained in this manual is subject to change without
notice. The manufacturer of the main board will not be held
responsible for technical or editorial omissions made herein, nor for
the incidental or consequential damages resulting from its
furnishing, performance, functionality or use. Subsequent changes to
this manual will be incorporated into the next edition. We welcome
any suggestion regarding this manual or our computer products.
Trademarks
● Intel®and Pentium®are registered trademarks of Intel®
Corporation.
●IBM®is a registered trademark of International Business
Machines Corporation.
●Microsoft®is a registered trademark of Microsoft® Corporation.
●PCI®is a registered trademark of PCI Special Interest Groups.
●AWARD®is a registered trademark of Award Software Inc.
All other trademarks are the property of their respective owners.

694X PRO System Board I
Table of Contents
Chapter 1 Introduction………………………………………..….…………1
1-1 Main Board Overview…………………………………………………1
1-2 Specifications.……………………………………………………..……3
1-3 Notice of Hardware Installation…………………..……………....……6
1-4 Notice of CD Driver Installation…………………..…………………7
Chapter 2 Installation………………………….……………………….…8
2-1 Layout Reference…………………………..…………………..………..8
2-2 Jumper Setting.…………………...…………………….…………….…9
2-2-1 RTC1 : CMOS Status…….……………….……...…………………….9
2-2-2 JP1 : CPU Type Selector…………………………….…………………10
2-2-3 VID0-VID4 : CPU Vcore Selector………………………………….11
2-2-4 JP4-JP7 : AMR Function Selector…..………………………………13
2-2-5 JP8，JP3 : Over-clocking Setup……………………………………….14
2-3 Connectors ………………………………..……………………………15
2-3-1 Front Panel…………………………………………………….………15
2-3-2 Back Panel…………………………………………….……………….17
Keyboard &Mouse..…… ………………………………………………18
USB1/USB2(Universal Serial Bus)……………………………………..18
COM1/COM2………………………………………………………..…18
LPT1 (Parallel Port)……………………………………………………18
2-3-3 ATX Power Supply Connector…...…………………….…………….19
2-3-4 CPU Fan Connectors………………….……………..……………..…20
2-3-5 I.R. : IrDA Connector………………………...……..………………21
2-3-6 Floppy Disk Connector……………………..……..……....………...22
2-3-7 IDE1 & IDE2..………………….…......………………..………...……23
2-4 DIMM Memory Installation…….…………………….….…………24

694X PRO System Board II
Chapter 3 PhoenixNetTM BIOS Porting Guide……………………………26
3-1 Product Overview………………………………………………………26
3-2 Graphical Launch
Screen(GLS)……………………………………….27
Chapter 4 BIOS Setup..……...….…….. …………………………………28
4-1 Award BIOS CMOS Setup…………………………………………28
4-1-1 Standard CMOS Setup………………………………………………29
4-1-2 Advanced BIOS Features……………………………………………32
4-1-3 Advanced Chipset Features……………………………………..……37
4-1-4 Integrated Peripherals……………………………………..……...41
4-1-5 Power Management Setup……………………………………….46
4-1-6 PNP/PCI Configuration Setup……………………………………….52
4-1-7 PC Health Status…………...…………………………. ……………54
4-1-8 Frequency/Voltage Control.…………………………………………55
4-1-9 Load Optimized Defaults……………………………………………56
4-1-10 Supervisor/User Password……………………………………………57
4-1-11 Save and Exit Setup……..……………………………….……………60
4-1-12 Quit Without Saving…………………………………………………..61
Chapter 5 Appendix……………………………………………………….62
5-1 Memory Map…………………………………………….……………62
5-2 I/O Map……………………………………………………….………63
5-3 Time & DMA Channels Map…………………………………………64
5-4 Interrupt Map…………………………………………...….………….65
5-5 RTC & CMOS RAM Map…………………………………………66
5-6 Award BIOS Hard Disk Type………………………………………...67
5-7 ISA I/O Address Map………………………………….……………....69
Chapter 6 Q & A……………………………………………………………71
6-1 Error Messages During Power On Self Test………………………....71

694X PRO System Board III

VIA694X System Board 1
Chapter 1 Introduction
1-1 Main Board Overview
The main board is a new-generation INTEL Celeron/FC-PGA Pentium®III；Cyrix
MIII main board designed based on VIA VT82C694X chipset. The main board
has integrated the latest advances in processor, memory, I/O technologies into an
ATX form factor.
The main board utilizes VIA 694X chipset designed for INTEL Celeron/FC-PGA
Pentium®III；Cyrix MIII CPUs and supports new architects such as high-speed
2X/4X mode AGP graphic port, SDRAM, Ultra DMA/66, bus master IDE and
USB port. It has three Dual In-line Memory Modules (DIMM) which can be
installed with SDRAM memory. The memory subsystem supports up to either 384
MB (SDRAM). The main board using the Socket370, accepts Intel®Pentium®
II/III(100/133 MHz) processors. Built-in second level (L2) cache in CPU, there is
no cache necessary in this system board.
The main board also has implemented VIA VT82C686A high performance I/O
Controller utilizes with fully Plug and Play device which supports 2.88 MB
Floppy, Dual 16550 Compatible (with 16 bytes FIFO, up to 460K baud rate)
Serial Port, ECP (Enhanced Capabilities Port), EPP (Enhanced Parallel Port)
parallel port, Infrared IrDA (HPSIR), Amplitude Shift Keyed IR. (ASKIR) port
and Audio.
The main board supports 5*PCI, 1*A.G.P and 1*AMR. (four PCI Bus Mastering
slots & 1 PCI Bus Slave slot) for highest performance I/O add-on adapter cards.

VIA694X System Board 2
The main board is also strengthened with Power Management Wake up Event
such as “WOL (Wake up on LAN),” “Modem ring on” which are the new
inventions to enable PCs to be turned on over the network. These are also key
benefits in PC operation, asset management, new system setup and power
conservation.
In conclusion, the main board is a combination of the highest in performance,
flexibility, efficiency, and ease of use that meets a variety of price/performance
levels. The main board is an ideal platform for the increasing requirements of
today’s and future’s desktop application.
 This main board supports to 4X mode AGP card specially.

VIA694X System Board 3
1-2 Specifications
● PCB board size : 30.5 cm x 19.00 cm
● PCB layer : 4 layers
●Socket 370
Support Intel® Celeron CPU at 66/100 MHz F.S.B and FC-PGA Pentium III
CPU at 100 MHz/133 MHz F.S.B. , Cyrix III CPU
CPU is not enclosed in the package.
● Memory DIMM : 3 of 168-pin 3.3V DIMM
● Expansion Slot :, 5 x PCI slots, 1x A.G.P. slot and 1 x AMR( allows primary
card only)
Supports 1X/2X/4X AGP mode.
●Chipset
•VIA VT82C694X
•VIA VT82C686A
● BIOS: flash ROM for BIOS
Award® full PnP (Plug & Play) BIOS
● I/O function
•2 x PCI IDE devices
•1 x FDC, 2 x serial ports(16550 fast com)
•1 x parallel port device /EPP/ECP/SPP
•2 x USB connector (4 port, 2 port optional)
•IrDA (infrared) connector

VIA694X System Board 4
● Green function : Complied with APM (Advanced Power Management)
● ATX form factor
The ATX form factor has been defined to address four major areas of
improvement required of today’s predominant form factors.
•Enhance PC ease-of-use with all built-in I/O connector
•Better support for current and future I/O
•Reduce total system cost
•Better support for future processor technology
ATX is an evolution of the popular Baby-AT form factor. By mounting the
power supply on its side, the processor is relocated away from the expansion
slots, and the longer side of the board is used to host more on-board I/O
connector; this placing of I/O on the board reduces cabling inside the box,
lower costs, and improves reliability and ease-of use. A flexible I/O panel
allows ATX to support all current and future I/O requirements. The ATX
power supply will directly suck the air out of chassis that will save the cost of
a secondary fan in the system. System cost is further reduced by the higher
integration of PC components onto the system board itself, saving materials,
inventory holding, and assembly cost.
● Power supply regulation
Onboard switching voltage that supports appropriate power to the CPU and
future upgraded CPUs.