American Megatrends Baby Voyager User manual

AMI
Series 39Series 39
Baby VoyagerBaby Voyager
80486 Motherboard80486 Motherboard
User's GuideUser's Guide
MAN-639
5/26/92

© Copyright 1992 American Megatrends, Inc.
All rights reserved.
American Megatrends, Inc.
6145F Northbelt Parkway
Norcross, GA 30071
This publication contains proprietary information which is protected by
copyright. No part of this publication may be reproduced, transcribed,
stored in a retrieval system, translated into any language or computer
language, or transmitted in any form whatsoever without the prior written
consent of the publisher, American Megatrends, Inc.
Limited WarrantyLimited Warranty
Buyer agrees if this product proves to be defective, that American
Megatrends, Inc. (hereafter referred to as AMI) is only obligated to
replace or refund the purchase price of this product at AMI's discretion
according to the terms and conditions of the warranty card accompanying
the AMI Baby Voyager motherboard. AMI shall not be liable in tort or
contract for any loss or damage, direct, incidental or consequential.
Please see the AMI Warranty Registration Card shipped with this product
for full warranty details.
Limitations of LiabilityLimitations of Liability
In no event shall AMI be held liable for any loss, expenses, or damages
of any kind whatsoever, whether direct, indirect, incidental, or
consequential, arising from the design or use of this product or the
support materials provided with the product.
TrademarksTrademarks
AMI acknowledges the following trademarks:
Intel and i486 are registered trademarks of Intel Corporation.
MS-DOS, Xenix, and Microsoft are registered trademarks of Microsoft Corporation.
IBM, AT, VGA, OS/2, and EGA are registered trademarks of International Business
Machines Corporation. XT and CGA are trademarks of International Business Machines
Corporation.
Toshiba is a registered trademark ofKabushiki Kaisha Toshiba.
Weitek is a trademark ofWeitek Incorporated.

AMI Baby Voyager User's Guide
iii
Table of Contents
Chapter 1 Introduction................................................................................. 1
Chapter 2 Installation................................................................................... 7
Unpacking....................................................................... 7
Baby Voyager Layout..................................................... 8
Installation Steps........................................................... 9
Step 1 Set Switch and Jumper Options.................... 10
Step 2 Install Memory................................................... 13
Memory Configuration.................................. 13
Step 3 Install Coprocessor......................................... 16
Step 4 Install the Motherboard................................... 17
Step 5 Connect the Power Supply............................. 19
Step 6 Connect theKeyboard..................................... 20
Step 7 Connect Cables ............................................... 21
Connect the Reset Button
Connector ...................................... 21
Connect the Speaker Cable....................... 22
Connect the Keyboard Lock
Connector....................................... 22
J23 Turbo LED.............................. 22
Serial Port Connectors ................................ 24
Step 8 Install Floppy Drive........................................... 26
Step 9 Install Hard Disk............................................... 28
Step 10 Install Adapter Cards .................................... 29
Adapter Card Pinout..................................... 29
Step 11 Perform Initial Test and
Configuration................................................. 31
In Case of Errors........................................... 32
Chapter 3 BIOS Power-On Self Test (POST)........................................... 33
POST Phases................................................................ 33
BIOS Error Reporting................................................... 33
AMI BIOS Beep Codes................................................. 34
Displayed Error Messages......................................... 35
POST Memory Test....................................................... 42

Preface
iv
Table of Contents,Continued
Chapter 4 AMI BIOS..................................................................................... 43
BIOS Features............................................................... 43
Advanced CMOS and Advanced Chip Set
Setup Features.............................................. 44
Section 1 Running AMI Setup..................................................... 45
Running Setup.............................................................. 45
Setup Keys ..................................................................... 46
Auto Configuration With BIOS Defaults .................... 49
Auto Configuration With Power-On Defaults ........... 49
Write to CMOS and Exit................................................ 50
Do Not Write to CMOS RAM and Exit......................... 50
Section 2 Standard CMOS Setup............................................... 51
Date And Day Configuration....................... 52
Hard Disk Configuration.............................. 53
Hard Disk Parameter Table........................ 54
Floppy.............................................................. 56
Monitor............................................................ 56
Keyboard........................................................ 56
Section 3 Advanced CMOS Setup.............................................. 57
Memory Test Tick Sound ............................ 60
Hard Disk Type 47 RAM Area..................... 61
System Boot Up Num Lock ........................ 62
Weitek Processor ........................................ 62
Floppy Drive Seek At Boot .......................... 62
System Boot Up Sequence........................ 62
System Boot Up CPU Speed...................... 63
Fast Gate A20 Option................................... 63
Password Checking Option........................ 64
Shadow RAM Option.................................... 64
Section 4 Advanced Chip Set Setup.......................................... 65
Advanced Chip Set Setup Options ............................ 66
Section 5 AMI BIOS Password Support.................................... 71
Section 6 Hard Disk Utility........................................................... 73
Hard Disk Format......................................................... 75
Auto Interleave............................................................... 78
Media Analysis .............................................................. 80
Appendix A Upgrading to 256 KB Cache................................................ 83
Index............................................................................................................... 85

AMI Baby Voyager User's Guide
v
Preface
To the OEMTo the OEM
Thank you for purchasing the high performance Series 39 Baby
Voyager AT- compatible motherboard from AMI. It is assumed that
you have also licensed the rights to use the AMI documentation for
the AMI Baby Voyager.
This manual was written for the OEM. It is the purpose of this manual
to assist you in the proper installation and operation of the Baby
Voyager motherboard.
This manual is not meant to be read by the computer owner who
purchases a computer with the Baby Voyager motherboard. It is
assumed that you, the computer manufacturer, will use this manual as
a sourcebook of information, and that parts of this manual will be
included in the computer owner's manual.
Technical SupportTechnical Support
If a Baby Voyager motherboard fails to operate as described or you are
in doubt about a configuration option, please call the AMI technical
support staff at 404-246-8600.
AcknowledgmentsAcknowledgments
This manual was written by Paul Narushoff and Robert Cheng.

Preface
vi

AMI Baby Voyager User's Guide
1
Chapter 1
Introduction
The AMI Series 39 80486 Baby Voyager is an IBM® AT®-compatible
motherboard, approximately 8.55 by 13 inches. It is similar in size to a
standard XT or baby AT motherboard. The mounting hole locations
allow this motherboard to be used with baby AT or XT chassis. The
height of the board components is no more than 1½ inches. Allow 2
inches of clearance for the power supply connectors. See the
following graphic.

Chapter 1 - Introduction
2
Specifications
MicroprocessorMicroprocessor
The AMI Baby Voyager has an Intel® 80486 microprocessor, operating
at 33 MHz.
Processor SpeedsProcessor Speeds
The microprocessor has two clock speeds, high and low. The high
clock speed is set at time of manufacture to 33 MHz. The low clock
speed is 8 MHz. The clock speeds can be changed via the keyboard by
the keystroke combinations (Ctrl><Alt><+> and <Ctrl><Alt><->.
These keystrokes can be changed by the OEM via AMIBCP (AMI BIOS
Configuration Program).
Cache MemoryCache Memory
The external cache memory size can be either 64 KB or 256 KB. Up to
32 MB of system memory can be cached. There are 0 wait states for
cache memory read and write. Burst mode is supported for caching.
Main MemoryMain Memory
The AMI Baby Voyager supports up to 32 MB via two banks of 4 MB x
9 SIMMs. The Baby Voyager uses 70 ns SIMMs when operating at 33
MHz.

AMI Baby Voyager User's Guide
3
Specifications,Continued
ROMROM
The AMI Baby Voyager has 64 KB of Read Only Memory (ROM) used
for the system BIOS at address F0000h.
Shadow RAMShadow RAM
The AMI Baby Voyager system BIOS is always shadowed from ROM
to RAM. The end user can select video BIOS shadowing through AMI
BIOS Setup.
Onboard I/OOnboard I/O
The AMI Baby Voyager has an IDE controller, floppy controller, two
serial ports, and one parallel port on the motherboard.
System BIOSSystem BIOS
The AMI Baby Voyager uses an AMI Hi-Flex BIOS with built-in Setup
configuration utility and hard disk drive utilities.
Through the AMI BIOS Setup, an end user can configure up to two
user-definable hard disk drive types. The end user can easily configure
systems with no video monitor, keyboard, or floppy disk drive through
AMI BIOS Setup.
CMOS RAMCMOS RAM
The AMI Baby Voyager has 128 bytes of CMOS RAM, used to store
system configuration. CMOS RAM requires an external source (a 4.5
to 6 volt battery) for battery back-up.

Chapter 1 - Introduction
4
Specifications,Continued
Math CMath Coprocessoroprocessor
The AMI Baby Voyager supports an optional Weitek® WTK4167
Numeric Coprocessor.
Expansion SlotsExpansion Slots
The AMI Baby Voyager has eight 16-bit AT-compatible expansion slots.
System Support FunctionsSystem Support Functions
The AMI Baby Voyager supports all standard ISA functions, such as
those listed below, plus nonstandard functions:
•seven Direct Memory Access (DMA) channels,
Channels 0 - 3 are used for 8-bit data transfer and
Channels 5 - 7 are used for 16-bit data transfers.
•sixteen interrupt levels
eleven levels of interrupt are supported, including:
IRQ3-IRQ7, IRQ9-IRQ12, IRQ14,and IRQ15.
•three programmable timers, and a
•system clock
•ability to access 32-, 16-, and 8-bit memory devices and 16-
and 8-bit I/O devices.
•standard ISA I/O port addresses: 0100h through 03FFh.
•standard ISA I/O bus, operating at 8 Mhz.