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.

AMI Baby Voyager User's Guide
5
Specifications,Continued
•24-bit memory addresses that can access 16 MB of
memory address space.
•uses an I/O channel check to generate NMIs.
•supports I/O wait state generation.
•has an open bus structure that permits multiple
microprocessors to share system resources, including
system memory.
•system memory refresh from channel microprocessors.
Real Time ClockReal Time Clock
The AMI Baby Voyager has a standard AT-type real time clock that is
crystal controlled.
KeyboardKeyboard
The AMI Baby Voyager has a standard 5-pin DIN connector for an AT-
compatible keyboard. The Baby Voyager also has a keyboard lock
function to prevent unauthorized access to the system.
SpeakerSpeaker
The AMI Baby Voyager has an attachment for an audio speaker.

Chapter 1 - Introduction
6

AMI Baby Voyager User's Guide
7
Chapter 2
Installation
Unpacking
Step Action
1. Inspect the cardboard carton for obvious damage. If damaged, call
AMI Technical Services at 404-263-8181.
Leave the Baby Voyager motherboard in its original packing.
2. Perform all unpacking and installation procedures on a ground
connected anti-static mat. The operator should wear an anti-static
wristband, grounded at the same point as the anti-static mat. Or
use a sheet of conductive aluminum foil grounded through a 1
megohm resistor instead of the anti-static mat. Similarly, a strip of
conductive aluminum foil wrapped around the wrist and grounded
through a 1 megohm resistor serves the same purpose.
3. Inside the carton, the Baby Voyager motherboard is packed in an
anti-static bag, and sandwiched between sheets of sponge.
Remove the sponge and remove the anti-static bag. Place the
Baby Voyager motherboard on a grounded anti-static surface
component-side up. Save the original packing material in case of
reshipment.
4. Inspect the motherboard for damage. Press down on all ICs
mounted in sockets to verify proper seating. Do not apply power
to the motherboard if it has been damaged.
5. If the motherboard is undamaged, it is ready to be installed.

Chapter 2 - Installation
8
Baby Voyager Layout

AMI Baby Voyager User's Guide
9
Installation Steps
The steps for assembling a system that uses the 80486 Baby Voyager
motherboard are shown in the following table. Each step is discussed
in detail in the following pages.
Step Action Turn to
1. Set switch and jumper options. Page 10
2. Install memory. Page 13
3. Install coprocessors. Page 16
4. Install motherboard. Page 17
5. Connect the power supply. Page 19
6. Connect the keyboard. Page 21
7. Connect cables. Page 22
8. Install floppy drive. Page 27
9. Install hard disk drive. Page 29
10. Install adapter cards. Page 30
11. Perform initial test and configuration. Page 32
Standoffs and mounting screws are not supplied with the AMI 80486
Baby Voyager motherboard. These should be supplied with the
chassis.

Chapter 2 - Installation
10
Step 1 Set Switch and Jumper Options
Set all user-configurable jumpers and switches, and install
coprocessors before installing the motherboard in the chassis. There is
one user-configurable switch and thirteen jumpers.
SW1SW1
SW1 is an eight-position 2-bit DIP switch. See the graphic on page 8
for the location of SW1.
Position Description
1Diagnostics, used for manufacturing test. The motherboard is
shipped with this switch OFF and it should remain OFF.
2Col/Mono. The COL/MONO switch sets the type of video
display adapter card in the system. This switch is factory-set
to OFF, for a monochrome display adapter (MDA). Set ON
for a color graphics adapter (CGA). This switch has no
effect if an EGA or VGA adapter is used.
3Video Shadow. The video ROM segment beginning at C000h
is copied from the BIOS ROM to faster RAM for faster video
operation. This switch is factory-set to ON.
4ROM BIOS Shadow. Similar to video shadow except the
entire system BIOS (64 KB in length) is shadowed. This
switch is factory-set to ON.
5, 6, 7, 8 Memory configuration. Positions 5, 6, 7, and 8 are used with
jumpers J4 and J5 to configure system memory.
J4 and J5 Memory ConfigurationJ4 and J5 Memory Configuration
J4 and J5 are 3-pin single-inline bergs that configure system memory.
See the section on configuring memory on page 13.
J9 Serial Port 1 SelectJ9 Serial Port 1 Select
J9 is a 3-in single-inline berg. Short pins 2-3 to select IRQ4 for serial
port 1 (this is the default setting). Short pins 1-2 to select IRQ3 for
serial port 1.

AMI Baby Voyager User's Guide
11
Step 1 Set Switch and Jumper Options,
Continued
J6 Serial Port 2 IRQ SelectJ6 Serial Port 2 IRQ Select
J6 is a 3-pin single-inline berg. Short pins 2-3 to select IRQ3 for serial
port 2 (this the default setting). Short pins 1-2 to select IRQ4 for serial
port 2.
J18 Parallel Port IRQ SelectJ18 Parallel Port IRQ Select
J18 is a 3-pin single-inline berg. Short pins 1-2 to select IRQ5 for the
parallel port. Short pins 2-3 to select IRQ7 for the parallel port (this is
the default value).
J35 Enable Burst ModeJ35 Enable Burst Mode
J35 is factory hardwired to enable burst mode.
J19 Burst Address 2J19 Burst Address 2
J19 is factory hardwired to pins 2 and 3.
J20 Burst Address 3J20 Burst Address 3
J20 is factory hardwired to pins 2 and 3.
J28 Bus Clock SelectJ28 Bus Clock Select
J28 is factory hardwired to pins 2 and 3 to select an I/O bus speed of 8
MHz.
J40 ROM Access 0 Wait StateJ40 ROM Access 0 Wait State
J40 is a 2-pin single-inline berg. This jumper is factory-set with pins 1
and 2 jumpered to select 0 wait states for ROM access.

Chapter 2 - Installation
12
Step 1 Set Switch and Jumper Options,
Continued
J29 BIOS ROM Size SelectJ29 BIOS ROM Size Select
J29 is a 3-pin single-inline berg. Short pins 1-2 to select 27256 ROMs
(this is the default). Short pins 2-3 to select 27512 ROMs.
J36 64K/256K Cache SelectJ36 64K/256K Cache Select
J36 is a 2-pin single-inline berg. Make sure J36 is open to select 64 KB
of cache memory. Short pins 1-2 for 256 KB of cache memory.
J21 and J22 Cache Address SelectJ21 and J22 Cache Address Select
J21 and J22 are 3-pin single-inline bergs. Short pins 1-2 if 256 KB of
cache memory is installed. Short pins 2-3 if 64 KB of cache memory is
installed.

AMI Baby Voyager User's Guide
13
Step 2 Install Memory
The main memory subsystem on the Baby Voyager motherboard
consists of two 32-bit memory banks of 4 SIMM sockets each. Both
banks house SIMM (Single In-line Memory Module) DRAM packages.
The SIMM bank accepts 256 KB, 1 MB, 4 MB x 9 bit SIMMs.
Memory ConfigurationMemory Configuration
The AMI 80486 Baby Voyager supports 1 MB, 2 MB, 4 MB, 8 MB, 16
MB, and 32 MB memory configurations on the motherboard using
SIMMs. The following table describes switch settings for the Baby
Voyager memory configurations.
Bank 0 Bank 1 Switch 5 Switch 6 Switch 7 Switch 8 J4 J5 RAM
256 KB ------- ON ON ON ON 2-3 2-3 1 MB
256 KB 256 KB ON OFF ON ON 2-3 2-3 2 MB
1 MB ------- ON ON ON OFF 2-3 1-2 4 MB
1 MB 1 MB ON OFF ON OFF 2-3 1-2 8 MB
4 MB ------- ON ON OFF OFF 1-2 1-2 16 MB
4 MB 4 MB ON OFF OFF OFF 1-2 1-2 32 MB
The memory shown by the BIOS is 384K less than the total amount
of memory installed because the 384K segment between 640K and 1
MB is used for system and video BIOS shadowing.

Chapter 2 - Installation
14
Step 2 Install Memory,Continued
SIMM Part NumbersSIMM Part Numbers
Memory Type Manufacturer Part Number
256 K x 9 Siemens® HYB514256AJ-70
1 MB x 9 Fujitsu® MB-85235-70
Toshiba® THM91000AS-70
NEC® MC-42100A9-70
Siemens HYM910005-70
4 MB x 9 Toshiba THM94000S-70/80
NEC MC-85235-70/80
OKI® MSC2340-74059-70/80