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.

VIA694X System Board 5
● Electrical--- Typical power supply
Below is reference for ATX case requirement on power supply.
Current
Voltage Tolerance
230W 250W 300W
+5V ±5% 23A 25A 30A
+3.3V ±5% 14A 14A 14A
+12V ±10% 9A 10A 12A
-5V ±5% 0.5A 0.5A 0.5A
-12V ±5% 0.8A 0.8A 0.8A
+5VSB ±5% 1A 1A 1A
WOL (Wake up on LAN) function requirement:
Power supply should offer at lest 1A to the signal “5VSB”to support WOL function.
● Special features
•Wake up on LAN (ATX power supply is required)
•Modem ring on
•Windows 95/98/2000 power off (ATX power supply is required)
•AMR

VIA694X System Board 6
1-3 Notice of Hardware Installation
Before hardware installation, make sure you have checked the following
things.
A. Check the package
If any of these items is missing or damaged, contact the dealer from whom
you purchase. Leave this main board in its original package until you are
ready to install it. In the package, there are:
•the main board
•manual
•cables
•driver & utility / CD
B. Make sure power is off.
During hardware installation, be sure that there is no power connected at this
period.
C. Avoid ESD (Electrical Static Discharge)
While working with the main board, wear a grounded wristband or ankle strap
to avoid ESD (Electrical Static Discharge).

VIA694X System Board 7
1-4 Notice of CD Driver Installation
This CD contains drivers as below. Read “Index” before installing required
drivers. “Index” file is HTML format.
CD driver is always updated with the latest version, so the actual
CD content may have some differences with the above picture.
1. Main boards: 5gxm, 6AAP5, 6va693a, 6va693am, 6va694, 6vapm, 6VPM1,
Amdk7, I810, I815e, I820, K7vat, Kx133, ViaMVP4 (please choose 6va694
directory for this main board).
2. DX7:Windows DirectX7 driver.
3. Flashrom:Bios flashupgrade utility.
4. Pccillin2K: anti- virus protection software.View the on-line help for more
information.
5. VIA 4 in 1:Intall VIA 4 in 1 drivers V4.24 that automatically detect and
install the Bus Master PCI IDE driver. VIA AGP Driver, VIA INF Driver &
IRQ Routing Driver.
Due to “CIH” virus will damage BIOS completely, user needs to load
Pc-cillin anti-virus software when sets up system.

VIA694X System Board 8
Chapter 2 Installation
2-1 Layout Reference
COM2 COM1
LPT
USB1
K/B &
MOUSE
PGA370
FAN1
DIMM3
DIMM2
DIMM1
JP3
JP8
IDE2
IDE1
FDD1
VT82C694X
BIOS
AMR
AGP1
PCI1
PCI2PCI3PCI4PCI5
JP4
JP7
VID0 VID3 VID1
VID2
VID4
VT82C686A
RTC1
FAN2
J1
USB2
WOL1
TR1
JP1
AT X P o w e r

VIA694X System Board 9
2-2 Jumper Setting
2-2-1 RTC1 - CMOS Status
RTC1 is a 3-pin connector. Clear CMOS if system password is forgotten. Below
are details to show how to clear CMOS.
RTC1:CMOS Status
Set to "1-2"---Set to "2-3"---
Normal Clear CMOS
Procedure to clear CMOS:
Step 1: Shut down the system and disconnect the power supply from AC power.
Step 2: Pull out the ATX cable from ATX connector “POWER1”.
Step 3: Short the CMOS jumper by putting jumper cap on Pin 2-3 for a few seconds.
Step 4: Return to pin 1-2 for normal setup.
Step 5: Link ATX power cable to ATX connector & connect AC power to power supply.
Step 6: Turn on system power.
If you’d like to set password, press “DEL” Key during system bootup to enter
CMOS setup and establish a new password.

VIA694X System Board 10
2-2-2 JP1 : CPU Type Selector
JP1 is 2-pin connector, which provides to select CPU type.
JP1:CPU Type Selector
CPU Type JP1
INTEL FC-PGA PIII CPU CLOSE
Cyrix III CPU OPEN
INTEL PII Celeron CPU OPEN
Remarks : JP1 : FC-PGA Coppermine/Celeron/Cyrix selector.

VIA694X System Board 11
2-2-3 VID0-VID4 : CPU Vcore Selector
VID0-VID4 are 3-pin connectors which provides CPU Vcore selection. Please
select the right Vcore according to your CPU and set details as below.
VID0-VID4 :CPU
Vcore Selector
VID0
VID1 VID2
VID3 VID4
VID0-VID3 VID4
Default(1-2) Default(2-3) : for Socket370 Intel
PII/PIII CPU, Cyrix III CPU
VID0 VID1 VID2 VID3 VID4 CPU_Volt.
2-3 1-2 1-2 2-3 1-2 2.9V
1-2 1-2 1-2 2-3 1-2 2.8V

VIA694X System Board 12
2-3 2-3 2-3 1-2 1-2 2.7V
1-2 2-3 2-3 1-2 1-2 2.6V
2-3 1-2 2-3 1-2 1-2 2.5V
1-2 1-2 2-3 1-2 1-2 2.4V
2-3 2-3 1-2 1-2 1-2 2.3V
1-2 2-3 1-2 1-2 1-2 2.2V
2-3 1-2 1-2 1-2 1-2 2.1V
1-2 1-2 1-2 1-2 1-2 2.0V
2-3 2-3 2-3 2-3 2-3
2.05V
1-2 2-3 2-3 2-3 2-3
2.00V
2-3 1-2 2-3 2-3 2-3
1.95V
1-2 1-2 2-3 2-3 2-3
1.90V
2-3 2-3 1-2 2-3 2-3
1.85V
1-2 2-3 1-2 2-3 2-3
1.80V
2-3 1-2 1-2 2-3 2-3
1.75V
1-2 1-2 1-2 2-3 2-3
1.70V
2-3 2-3 2-3 1-2 2-3
1.65V
1-2 2-3 2-3 1-2 2-3
1.60V
2-3 1-2 2-3 1-2 2-3
1.55V
1-2 1-2 2-3 1-2 2-3
1.50V
2-3 2-3 1-2 1-2 2-3
1.45V
1-2 2-3 1-2 1-2 2-3
1.40V
2-3 1-2 1-2 1-2 2-3
1.35V
1-2 1-2 1-2 1-2 2-3
1.30V
Please don’t change default setting. The manufacturer shall have neither
liability nor responsibility to any person or entity with respect to any loss or
damages arising by users’ over-clocking or over-voltage.

VIA694X System Board 13
2-2-4 JP4-JP7 : AMR Function Selector(Optional)
JP4-JP7 are 2-pin connectors which provide AMR function. Please see details as
below.
JP7 OFF Primary CODEC for AMR（default）
JP4 ON Use AMR Slot（default）
Only Support Primary Card For AMR Slot
JP4,JP7:AMR
Function Selector
JP4
JP7

VIA694X System Board 14
2-2-5 JP8、JP3：Over-clocking Setup
JP8 is a 2-pin over-clocking jumper which allows 66MHz F.S.B. CPUs to
over-clock to 100MHz. This jumper is for internal test only. No guarantee is
provided for over-clocking setup since the chipset does not support.
JP3
： is a 2-pin over- clocking jumper which allows 100MHz F.S.B. CPUs to
over-clock to 133MHz
Normal
Over-clocking 66MHz
to 100MHz
Over-clocking 100MHz
to 133MHz
JP8 ON OFF ON
JP3 ON ON OFF
The manufacturer shall have neither liability nor responsibility to any person
or entity with respect to any loss or damages arising by users’ over-clocking or
over-voltage.
JP3,JP8:Over-clocking Setup
Normal
Over-clocking
JP3
JP8