VIA Technologies Zida BX983D User manual

Handling Precautions
CAUTION
High potential static charge may cause damage to the integrated circuits on the board. Before
handling any mainboard outside of its protective packaging, ensure that there is no static
electric charge in your body.
Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent
type recommended by the manufacturer.
There are some basic precautions when handling the motherboard or other computer components:
♦Keep the board in its anti-static bag until you are ready to install it.
♦Protect your board from static electricity by well grounding of your body and the equipment during the
installation, such as wearing a grounded wrist strap.
♦Always handle the board by its edges.
♦Do not touch the components on the boards, add-on cards/modules and the “gold finger” connectors
plugged into the expansion slot. It is better to handle system components by their mounting bracket.
♦Ensure the system power is completely turn-off before doing any installation work.
Notice to Customers
The information contains in this User’s Guide with no liability whatsoever, and disclaims any express or implied
warranty, relating to sale and/or use of products including liability or warranties relating to fitness for a particular
purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. We shall not be
liable for any loss or profits, loss of business, loss of use or data, interruption of business, or for indirect, special,
incidental, or consequential damages arising from any defect or error in this User’s Guide or product.
We retains the right to make changes on this User’s Guide and product descriptions at any time, without notice.

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Trademarks
VIA is a registered trademark of VIA Technologies, Incorporated.
Intel, Pentium, Pentium II, Celeron are registered trademark of Intel Corporation.
IBM, IBM PC, IBM PC/AT, PC-DOS, OS/2 and OS/2 WARP are registered trademarks of
International Business Machines Corporation.
MS-DOS, Windows, Windows NT, Windows 95 and Windows 98 are registered trademarks of
Microsoft Corporation.
AWARD BIOS is a product of Award Software Inc.
Third-party brands and names mentions in this User’s Guide are the property of their
respective owners.
User’s Guide Revision :1.01
Release Date : DECEMBER 1998
Part No : 90-BX3D1.01-00
Copyright 1998, All rights reserved.

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Table of Contents
OVERVIEW....................................................................................................................................................4
AUTO JUMPER...............................................................................................................................................4
FEATURES SUMMARY....................................................................................................................................5
MAINBOARD INSTALLATION.........................................................................................................................6
CPU INSTALLATION......................................................................................................................................7
INSTALLING SYSTEM MEMORY (RAM)..........................................................................................................9
EXPANSION CARDS INSTALLATION ..............................................................................................................10
CONNECTING EXTERNAL CONNECTOR .........................................................................................................10
“AUTO JUMPER” GUIDE ..............................................................................................................................15
QUICK INSTALLATION GUIDE........................................................................................................................ 17
AWARD BIOS AND CMOS SETUP UTILITY .......................................................................................................20
AWARD CMOS SETUP.................................................................................................................................. 21
STANDARD CMOS SETUP...............................................................................................................................23
BIOS FEATURES SETUP .................................................................................................................................25
CHIPSET FEATURES SETUP.......................................................................................................................... 28
POWER MANAGEMENT SETUP.......................................................................................................................30
PNP/PCI CONFIGURATION ....................................................................................................................34
CPU SPEED SETTING..............................................................................................................................37
INTEGRATRD PERIPHERALS................................................................................................................38
QUICK REFERENCE OF MOTHERBOARD..........................................................................................................41

Mainboard Installation
Page 4
Features of the Board
OVERVIEW
Congratulations on purchasing the highest performance motherboard. With the advanced technologies
available today, this motherboard is designed to optimize for Intel’s processors. Three unbuffered, 3.3
Volts, 168-pin DIMM sockets are included for supporting SDRAM.
This motherboard utilizes VIA's VT82C691 PCI chipset. The VIA’s VT82C586B PCI/ISA IDE provides
an integrated Bus Mastering IDE controller with two high performance IDE interfaces for up to four IDE
devices (such as hard drives or CD-ROM). The integrated super I/O controller integrates the standard PC
I/O functions: floppy interface, two FIFO serial ports, one EPP/ECP capable parallel port, and support for
an IrDA and Consumer Infra Red compatible interface.
This mainboard is designed to support the new graphic interface standard, Accelerated Graphic Port (AGP),
The AGP interface can reach a theoretical ~532Mbytes/sec transfer rate for 3D graphics data. On the other
hand, the on-board 32-bit PCI local bus slots allow a high bandwidth data path, which serves as a super
highway, for intensive data-movement such as networking. The BIOS support PCI bridge user
configuration, which allows for further expansion of the system with PCI peripherals. Up to two 16-bit ISA
slots allow this board to be backward compatible with the older expansion card. A total of six expansion
slots may be populated with full length add-in cards, since one PCI and ISA slot share the same chassis I/O
panel.
AUTO JUMPER
This mainboard is within our “Auto Jumper” series, which eliminates the necessity for the user to be
bored by jumper settings on the motherboard. It is capable of detecting the CPU brand and core voltage,
setting the appropriate CPU speed according to instructions from the user through CMOS setup menu.
In addition, two “safe keys” are defined. Pressing“F”during power on clears the CMOS RAM data, while
pressing “J”during power on re-detects CPU in “Auto Jumper” mode.

Mainboard Installation
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FEATURES SUMMARY
This motherboard comes with following features:
þSupports Intel PENTIUM II® orCeleron® Processor with automatic voltage adjustment for BX98-3D.
þSupports Intel Socket 370 Celeron® Processor with automatic voltage adjustment for BX3D-CT.
þOptimized for the highest performance Intel PENTIUM II® processors with 100 MHz front-side bus for
BX98-3D
þOptimized for the highest performance Intel Socket 370 Celeron® processors with overclock 100 MHz front-
side bus for BX3D-CT
þAWARD PnP BIOS with support for power management, enhanced IDE/SCSI features and desktop
management interface (DMI) which allows higher level of hardware compatibility.
þFlash BIOS for a more easy upgrade path.
þThree 168-pin DIMM sockets support up to 768MB SDRAM
þOne Accelerated graphic port (AGP) for AGP card.
þTwo 16-bit ISA expansion slots and four 32-bit PCI expansion slots.
þIntegrated two PCI bus mastering Ultra IDE controller with two on-board connectors supporting up to
four IDE devices such as Hard Disk, CD-ROM or Tape Backup drives.
þIntegrated super I/O chip featuring one floppy disk controller, two 16550 UART compatible serial
ports, one high speed EPP/ECP parallel port, one Infra Red port.
þSupports “Auto Jumper ” for detecting CPU configurations.
þWAKEUP-LINK interface header supporting Intel Wake-On-LAN
þSupport either an AT or an ATX power supply
þSupport “ Modem Ring Wakeup “

Mainboard Installation
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MAINBOARD INSTALLATION
Installation Precautions
During installation and initial test, use caution to avoid personal injury and damage to wiring due to sharp
pins on connectors and printed circuit assemblies, rough chassis edges and corners, and hot components.
Adhere to warnings and limitations regarding accessibility into areas designated only for authorized
technical personnel.
A Quick Introduction
To Install and operate your the new motherboard, you must follow the steps below:
1. Install the CPU with cooling fan
2. Install RAM modules
3. Connect cables, wires and power connector
4. Install expansion cards
Auto Jumper
After hardware installation, the user should select the appropriate CPU speed in the “CPU
CONFIGURATION SETUP” menu within the CMOS setup. Notice that there exists no jumper on this
mainboard. The user may clear the CMOS content by pressing “F”key while switching on the system.
If a wrong CPU speed is selected, the system may behave unstable, causing the user not being able to get
into CMOS setup. Pressing the “J” key while switching on the system can make re-selection in this case.

Mainboard Installation
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CPU CARD INSTALLATION
The mainboard provides a 242-pin CPU card slot. The CPU card should have a fan attached to it to prevent
overheating. If this is not the case then purchase a fan before you turn-on the system. There is one CPU fan
power connector named J6 on-board.
+12V
(Red) Ground
(Black)
CPU FAN
Fig. 2 CPU Cooling Fan Installation Diagram
CAUTION
Without an effective cooling fan, the CPU can overheat and cause damage to both the CPU
and the motherboard.
CPU Cooling fan Connector
J6 provide the +12 Volts d.c. for your CPU cooling fan
J6 Signal Name
1NC
2 +12V
3Ground

Mainboard Installation
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CPU INSTALLATION
The motherboard provides a 370 pins, Socket 370. The CPU should have a fan attached to it to prevent
overheating. If this is not the case then purchase a fan before you turn-on the system.
1
90
Socket 370
Intel
CPU
2
45 degree Index
corner
CPU
COOLING
FAN
+12V (Red)
Ground (Black)
CPU Installation Diagram
CAUTION
Without a effective cooling fan, the CPU can overheat and cause damage to both the CPU
and the motherboard.

Mainboard Installation
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INSTALLING SYSTEM MEMORY (RAM)
The motherboard supports three 168-pin DIMM. The three 168-pin DIMM sockets are divided into three
banks and each bank can accept SDRAM module.
3.3V Key
Unbuffered
DRAM Key
Push to remove
DIMM module
Push to remove
DIMM module
64 Bit 168 PIN DIMM Module
Vertically insert
for installation
Fig. 3 168-Pin DIMM Module Installation Diagram

Mainboard Installation
Page 10
Expansion Cards Installation
At the most of beginning, you must read your expansion card documentation on any hardware and software
settings that may be required. The installation procedures are summarized as below:
1. Read the User’s Guide/Manual of your expansion card.
2. If necessary, set any jumpers on your expansion card.
3. Power-off the system and then disconnected the power cord.
4. Remove your computer’s cover.
5. Remove the metal bracket from one of the empty slot, ISA or PCI, corresponding to the type
of expansion card.
6. Carefully align the card’s connectors and press firmly, make sure at the connection is good.
7. Secure the card on the slot.
8. Replace the computer’s cover.
9. Setup the BIOS configuration if necessary.
10. Install the required software drivers for your expansion card.
CAUTION
Before adding or removing any expansion card or other system components, make sure that
you unplug your system power supply. Failure to do so may cause damage of your
motherboard and expansion cards.
Connecting External Connector
AT Power Connector
A 12-Pin power supplies provide two plugs incorporates standard ±5V and ±12V, each containing six wires,
two of which are black. Orient the connectors so that the black wires are together.
Pin Signal Name Pin Signal Name
1Power Good Signal 7Ground
2+5V 8Ground
3+12V 9-5V
4-12V 10 +5V
5Ground 11 +5V
6Ground 12 +5V