ICS Advent 486MBS Series User manual

486MBS Series
Product Manual
MANUAL NUMBER : 41209-103-1B

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FOREWORD
This product manual provides information to install, operate and/or program the referenced product(s) manu-
factured or distributed by ICS Advent. The following pages contain information regarding the warranty and
repair policies.
Check our Web site (http://www.icsadvent.com/techsupport) for technical information, manual, and BIOS
updates. Technical assistance is also available at: 800-480-0044 (U.S. and Canada) or 858-677-0877
(international).
Manual errors, omissions, bugs, and/or comments: A Customer Comments section is included at the
end of this manual. If you experience any problems with the manual or just want to give us some feedback,
please review the information in this section. It will tell you how to easily access our web site and provide
immediate feedback online.
The information in this document is provided for reference only. ICS Advent does not assume any liability
arising from the application or use of the information or products described herein. This document may
contain or reference information and products protected by copyrights or patents and does not convey any
license under the patent rights of ICS Advent, nor the rights of others.
Copyright © 1999, a California Corporation, 6260 Sequence Drive, San Diego, CA 92121-4371. ICS Advent
is a Registered Trademark of ICS Advent. All trademarks and registered trademarks are the property of
their respective owners. All rights reserved. Printed in the United States of America. No part of this publi-
cation may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, elec-
tronic, mechanical, photocopying, recording , or otherwise, without the prior written permission of the pub-
lisher.

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Shipments not in compliance with this Guarantee
and Limited Warranty Return Policy will not be ac-
cepted by ICS Advent.
Guarantee
A thirty day money-back guarantee is provided on all standard products sold. Special order products are
covered by our Limited Warranty, however they may not be returned for refund or credit. EPROMs, RAM,
Flash EPROMs or other forms of solid electronic media are not returnable for credit - but for replacement
only. Extended Warranty available. Consult factory.
Refunds
In order to receive refund on a product purchase price, the product must not have been damaged by
the customer or by the common carrier chosen by the customer to return the goods, and the product
must be returned complete (meaning all manuals, software, cables, etc.) within 30 days of receipt
and in as-new and resalable condition. The Return Procedure must be followed to assure prompt
refund.
Restocking Charges
Product returned after 30 days, and before 90 days, of the purchase will be subject to a minimum
20% restocking charge and any charges for damaged or missing parts.
Products not returned within 90 days of purchase, or products which are not in as-new and re-
saleable condition, are not eligible for credit return and will be returned to the customer.
Limited Warranty
Effective April 1, 1998, all products carry a two-year limited warranty with the exception of the Perfor-
mance Series I/O products, which are warranted to the original purchaser for as long as they own the
product, subject to all other conditions below, including those regarding neglect, misuse and acts of God.
Within two years of purchase, ICS Advent will repair or replace, at our option, any defective product. At any
time after two years, we will repair or replace, at our option, any defective Performance Series I/O
product sold. This does not include products damaged in shipment, or damaged through customer neglect or
misuse. ICS Advent will service the warranty for all standard catalog products for the first two years from
the date of shipment. After the second year, for products not manufactured by ICS Advent, the remainder of
the manufacturer's warranty, if any, will be serviced by the manufacturer directly.
The Return Procedure must be followed to assure repair or replacement. ICS Advent will normally
return your replacement or repaired item via Second Day Air. Overnight delivery or delivery via
other carriers is available at additional charge.
The limited warranty is void if the product has been subjected to alteration, neglect, misuse, or
abuse; if any repairs have been attempted by anyone other than ICS Advent or its authorized agent;
or if the failure is caused by accident, acts of God, or other causes beyond the control of ICS Advent
or the manufacturer. Neglect, misuse, and abuse shall include any installation, operation, or
maintenance of the product other than in accordance with the owners manual.
No agent, dealer, distributor, service company, or other party is authorized to change, modify, or
extend the terms of this Limited Warranty in any manner whatsoever. ICS Advent reserves the right
to make changes or improvements in any product without incurring any obligation to similarly alter
products previously purchased.

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Return Procedure
For any Limited Warranty or Guarantee return, please contact ICS Advent's Customer Service at 800-480-
0044 (U.S. and Canada) or 858-677-0877 (international) and obtain a Return Material Authorization
(RMA) Number. All product(s) returned to ICS Advent for service or credit must be accompanied by a
Return Material Authorization (RMA) Number. Freight on all returned items must be prepaid by the cus-
tomer who is responsible for any loss or damage caused by common carrier in transit. Returns for Warranty
must include a Failure Report for each unit, by serial number(s), as well as a copy of the original invoice
showing date of purchase.
To reduce risk of damage, returns of product must be in an ICS Advent shipping container. If the
original container has been lost or damaged, new shipping containers may be obtained from ICS
Advent Customer Service at a nominal cost.
Limitation of Liability
In no event shall ICS Advent be liable for any defect in hardware or software or loss or inadequacy of data
of any kind, or for any direct, indirect, incidental, or consequential damages in connection with or arising out
of the performance or use of any product furnished hereunder. ICS Advent liability shall in no event exceed
the purchase price of the product purchased hereunder. The foregoing limitation of liability shall be equally
applicable to any service provided by ICS Advent or its authorized agent.
Some Sales Items and Customized Systems are not subject to the guarantee and limited warranty. How-
ever, in these instances any deviations will be disclosed prior to sales and noted in the original invoice. ICS
Advent reserves the right to refuse returns or credits on software or special order items.

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Advisories
Three types of advisories are used throughout the manual to stress important points or warn of potential
hazards to the user or the system. They are the Note, the Caution, and the Warning. Following is an example
of each type of advisory:
Note: The note is used to present special instruction, or to provide extra information which may
help to simplify the use of the product.
CAUTION!
A Caution is used to alert you to a situation which if ignored may cause injury or
damage equipment.
WARNING!
AWarningisusedtoalertyouofasituationwhichifignoredwill causeseriousinjury.
Cautions and Warnings are accented with triangular symbols. The exclamation symbol is used in all cautions
and warnings to help alert you to the important instructions. The lightning flash symbol is used on the left
hand side of a caution or a warning if the advisory relates to the presence of voltage which may be of
sufficient magnitude to cause electrical shock.
Use caution when servicing any electrical component. We have tried to identify the areas which may pose
a Caution or Warning condition in this manual; however, ICS Advent does not claim to have covered all
situations which might require the use of a Caution or Warning.
You must refer to the documentation for any component you install into a computer system to ensure proper
precautions and procedures are followed.

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Chapter 1: Introduction
Manual Number: 41209-103-1 Page 1-1
Chapter 1: Introduction
Thank you for your purchase of the 486MBS Series Industrial system board. The 486MBS Series
system board design was based on providing the ideal platform for getting the most power of the
Intel 486MBS processor. With proper installation and maintenance, your 486MBS Industrial will
provide years of high performance and trouble free operation.
This manual provides a detailed explanation into the installation and use of the 486MBS Series
system board. This manual is written for the novice PC user/installer. However, as with any major
computer component installation, previous experience is helpful and should you not have prior
experience, it would be prudent to have someone assist you in the installation.
This manual is broken down into 3 chapters and 3 appendixes.
Chapter 1 - System Board Configuration
This chapter provides all the necessary information for installing the 486MBS. Topics discussed
include: Installing the CPU (if necessary), DRAM installation, jumper settings for CPU, cache
and standard I/O. Connecting all the cables from the system board to the chassis and peripherals.
Chapter 2 - WinBIOS Setup
This chapter discusses the final step in getting your system up and running - running the BIOS
SETUP program.
Chapter 3 - Upgrading
The 486MBS provides a number of expansion options including memory and cache. All aspects
of the upgrade possibilities are covered.
Appendix A - Technical Specifications
A complete listing of all the major technical specifications of the 486MBS is provided.
Appendix B - Flash BIOS Programming
Provides all the information necessary to program your optional AMBIOS Flash BIOS.
Appendix C - Troubleshooting
This chapter lists the solutions for the most common questions on the 486MBS operation.

Manual Number: 41209-103-1Page 1-2
486MBS Series Manual
Configuration
This chapter provides all the necessary information for installing the 486MBS Series into a stan-
dard PC chassis. Topics discussed include: installing the CPU (if necessary), DRAM installation,
jumper settings for CPU, cache and standard I/O.
Handling Precautions
The 486MBS has been designed to be as rugged as possible but it can be damaged if dropped,
jarred sharply or struck. Damage may also occur by using excessive force in performing certain
installation procedures such as forcing the system board into the chassis or placing too much torque
on a mounting screw.
Take special care when installing or removing the system memory SIMMs. Never force a SIMM
into a socket. Screwdrivers slipping off a screw and scraping the board can break a trace or compo-
nent leads, rendering the board unusable. Always handle the 486MBS Series with care.
Special Warranty Note:
Products returned for warranty repair will be inspected for damaged caused by improper installa-
tion and misuse as described in the previous section and the static warning below. Should the
board show signs of abuse, the warranty will become void and the customer will be billed for all
repairs and shipping and handling costs.
STATIC WARNING
The 486MBS Series contains delicate electronic semiconductors that are highly sensitive to
static electricity. These components, if subjected to a static electricity discharge, can be
weakened thereby reducing the serviceable life of the system board. BEFORE THE BOARD IS
REMOVED FROM ITS PROTECTIVE ANTISTATIC PACKAGING TAKE PROPER
PRECAUTIONS! Work on a conductive surface that is connected to ground. Before touching
any electronic device, ground your self by touching an unpainted metal object or, and highly
recommended, use a grounding strap.

Chapter 1: Introduction
Manual Number: 41209-103-1 Page 1-3
Serial Ports PS/2 Keyboard
Memory
Modules
External
Cache
Auxiliary
Keyboard
ISA Slots
84041
C & T
Chipset
Local
BUS
VESA
Slots
BIOS
Power
Connector
Floppy
Connector
VL IDE
Interfaces
Microprocessor
Figure 1-1: 486MBS Series Board

Manual Number: 41209-103-1Page 1-4
486MBS Series Manual
Step 1 - Setting the Jumpers
Your 486MBS Series is equipped with a large number of peripherals and has the ability to run at a
variety of speeds without the need to change any crystals or oscillators. As such, there is a large
number of configuration jumpers on the board. Taken step by step, setting these jumpers is easy.
We suggest you review each section and follow the instructions.
Jumper Types
Jumpers are small copper pins attached to the system board. Covering two pins with a shunt closes
the connection between them. The 486MBS Series examines these jumpers to determine specific
configuration information. There are three different categories of jumpers on the Predator 747.
A. Two pin jumpers are used for binary selections such as enable, disable. Instructions for this
type of jumper are open, for no shunt over the pins or closed, when the shunt covers the pins.
B. Three or four pin jumpers are used for multiple selection. Instructions for these jumpers will
indicate which two pins to cover. For example: for JPx2-3 the shunt will be covering pins
2 and 3 leaving pins 1 and 4 exposed.
C. Grouped Jumpers are used when a certain function has multiple selections. There are two
grouped jumpers on the board and careful attention should be given when setting these
jumpers. Instructions for grouped jumpers are similar to those above - Jumper Location and
Pin Numbers.
Jumper Locations
Use the diagram below and the tables on the following pages to locate and set the on-board con-
figuration jumpers.
Figure 1-2: Jumper Locations

Chapter 1: Introduction
Manual Number: 41209-103-1 Page 1-5
Standard I/O Enable
The 486MBS Series standard I/O consists of the two serial ports, the parallel port and floppy disk
controller. Jumper JP17 is used to enable or disable these ports.
Table 1-1: Standard I/O Enable
CMOS Reset
This option is provided as a convenience for those who need to reset the CMOS registers. It should
always be set to Normal for standard operation. If the CMOS needs to be reset turn off the
system, move JP24 to 2-3, turn the system on, move JP24 back to 1-2 and reset the motherboard.
Table 1-2: CMOS Reset
I/O Port IRQ Selection
The parallel port and both serial ports must have their IRQs. Normally, these settings can be left in
their default settings and only when conflicts arise should they be changed. Jumper JP18 is used to
select the parallel port IRQ. Jumper JP19 is used to select the first serial port's IRQ. Jumper JP20
is used to select the second serial port's IRQ. Use Table 1-8 to select the IRQs for these options.
Table 1-3: I/O Port IRQ Selection

Manual Number: 41209-103-1Page 1-6
486MBS Series Manual
Clock Speed Selection
The jumper JP14 allows you to choose the appropriate CPU speed, without changing crystals and
oscillators.
Table 1-4: CPU Clock Frequency
CPU Type Settings
The jumpers JP5 and JP6 allow you to choose the appropriate CPU type, without changing crystals
and oscillators.
Table 1-5: CPU Type Settings
DMA Configuration for ECP Parallel Port
The jumpers JP15 and JP16 are designated for the configuration of the ECP parallel port.
Table 1-6: DMA Configuration for ECP Parallel Port

Chapter 1: Introduction
Manual Number: 41209-103-1 Page 1-7
Voltage Regulator Detection
The jumper JP11 selects the voltage for the CPU. Positions 1-2, 3-4 are auto-slect for Intel, AMD
and Cyrix 5X86 CPUs.
Table 1-7: Voltage Regulator Detection
Clock Multiplier
The jumper JP10 sets the multiplier for the AMD CPUs.
Table 1-8: Clock Multiplier
Cache Size
The jumpers JP26 and JP27 allow you to choose the cache size desired.
Table 1-9: Cache Size Selection

Manual Number: 41209-103-1Page 1-8
486MBS Series Manual
VL Bus Frequency
The jumpers JP13 and JP31 allow you to choose the frequency on the VL Bus.
Table 1-10: VL Bus Frequency
VL Bus Wait States
The jumpers JP12 and JP30 set the wait states for the VL slots.
Table 1-11: VL Bus Wait States

Chapter 1: Introduction
Manual Number: 41209-103-1 Page 1-9
Quick Jumper Settings For Most Used CPUs
Table 1-12: CPU Jumper Settings

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486MBS Series Manual
Table 1-12A: CPU Jumper Settings
Step 2 - DRAM, CPU and Cables Installation
Depending upon how your 486MBS Series is configured you may need to install the following:
 DRAM (SIMMs)
 CPU
486MBS Series Memory Configuration
The 486MBS Series uses standard Fast Page Mode 60ns access speed SIMMs. It is very important
that the quality of the SIMMs is good. Undesirable operation of the system may result if poor
quality SIMMs are used. Always purchase your memory from a reliable source.