American Megatrends MegaDual User manual

MegaDual
Pentium II®/Pentium III®
PCI Motherboard
User's Guide
MAN-798
3/15/00

MegaDual PCI Motherboard User’s Guideii
© Copyright 2000 American Megatrends, Inc.
All rights reserved.
American Megatrends, Inc.
6145F Northbelt Parkway
Norcross, GA 30071
This publication contains proprietaryinformation 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 Warranty
Buyer agrees if this product proves to be defective, that American Megatrends, Inc. is obligated only to replace or refund the purchase price of this
product at AmericanMegatrend's discretion according to the terms and conditions on the motherboard warranty card. American Megatrends shall not
be liable in tort or contract for any loss or damage, direct, incidental or consequential. Please see the Warranty Registration Card shipped with this
product for full warranty details.
Limitations of Liability
In no event shall American Megatrends 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.
Trademarks
VESA is a registered trademark of the Video Electronics Standards Association.
Intel, Pentium. Pentium Pro, and Pentium II/Pentium III are registered trademarks of Intel Corporation.
MS-DOS, Microsoft Word, and Microsoft are registered trademarks of Microsoft Corporation. Microsoft Windows,
Windows NT, and Windows 95 are trademarks of Microsoft Corporation.
IBM, AT, XT, CGA, VGA, PS/2, OS/2, and EGA are registered trademarks of International Business Machines Corporation.
Fujitsu is a registered trademark of Fujitsu America, Inc.
Motorola is a registered trademark of Motorola Corporation.
Hitachi is a registered trademark of Hitachi America, Ltd.
PNY is a registered trademark of PNY Corporation.
Oki is a registered trademark of Oki America, Inc.
NEC is a registered trademark of NEC Corporation.
Micron is a registered trademark of Micron Corporation.
SCO, Unix, and UnixWare are registered trademarks of the Santa Cruz Operation, Inc.
All other brand and product names are trademarks or registered trademarks of their respective companies.
Revision History
3/15/00 Initial release.

Preface iii
Table of Contents
1Hardware Installation..................................1
Overview.....................................................................................1
MegaDual PCI Motherboard Layout.....................................3
Step 1 Unpack the Motherboard ............................................4
Avoid Static Electricity.............................................................4
Step 2 Configure CPU Speed...................................................5
Step 3 Install Additional Voltage Regulator..........................6
Step 4 Connect CPU Fans........................................................7
Step 5 Install CPU......................................................................8
Step 6 Install Memory...............................................................9
Step 7 Install the Motherboard .............................................11
Step 8 Attach Cables ..............................................................12
Step 9 Connect I/O..................................................................19
Step 10 Set Options on the QLogic Menu...........................31
Step 11 Connect SCSI I/O......................................................48
Step 12 Install Drivers.............................................................53
Step 13 Test and Configure ...................................................54
2AMIBIOS Setup............................................55
AMIBIOS Setup Menu...........................................................56
Section 1 Main Setup........................................................................57
Section 2 Advanced CMOS Setup..................................................58
Section 3 Chipset Setup...................................................................77
Section 4 PCI/PnP Setup.................................................................79
Section 5 Power Management Setup.............................................83
Power Management................................................................84
Section 6 Boot Setup.........................................................................87
Section 7 Security Setup.................................................................91
AMIBIOS Password Support................................................91
Security Setup..........................................................................92
Section 8 Exit Menu..........................................................................95
3Programming Flash ROM.........................97
Bootblock Code Checkpoint Codes ...................................103
4Deleting a Password...............................105
ASpecifications............................................107
Engineering Specifications..................................................107
BCable Information.....................................109
Index........................................................................111

MegaDual PCI Motherboard User’s Guideiv
Preface
To the OEM Thank you for purchasing the high performance American MegatrendsMegaDual
Pentium II/Pentium III PCI motherboard. This product is a state of the art motherboard that
includes the famous AMIBIOS. It is assumed that you have also licensed the rights to use
the American Megatrends documentation for the American MegatrendsMegaDual
motherboard.
This manual was written for the OEM to assist in the proper installation and operation of
this motherboard. This manual describes the specifications and features of the MegaDual
PCI motherboard. It explains how to assemble a system based on the MegaDual PCI
motherboard and how to use the AMIBIOS that is specifically designed for this
motherboard.
This manual is not meant to be read by the computer owner who purchases a computer
with this 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.
Disclaimer
AMI certifies only that this product will work correctly when this
product is used with the same jumper settings, the same system
configuration, the same memory module parts, and the same
peripherals that were tested by AMI with this product. The complete
list of tested jumper settings, system configurations, peripheral
devices, and memory modules are documented in the AMI
Compatibility Report for this product. Call your AMI sales
representative for a copy of the Compatibility Report for this product.

Preface v
Technical Support
AMI provides technical support only for AMI products purchased directly from AMI or
from an AMI-authorized reseller.
If… Then…
You purchased this product from AMI or
from a certified AMI reseller, Call AMI technical support at 770-246- 8600. Please be prepared to specify the
serial number of the product.
This AMI product was installed as part of a
system manufactured by a company other
than AMI or you purchased an AMI
product from an unauthorized reseller,
Call the technical support department of
the computer manufacturer or the
unauthorized reseller. AMI does not
provide direct technical support in this
case.
If an American Megatrends motherboard fails to operate as described or you are in doubt
about a configuration option, please call technical support at 770-246-8600.
Web Site We invite you to access the American Megatrends world wide web site at:
http://www.ami.com.

MegaDual PCI Motherboard User’s Guidevi
Packing List
You should have received the following:
•a MegaDual Pentium II/Pentium III PCI motherboard
•one CD containing drivers for the QLogic SCSI controller, and the Intel 82559 LAN
controller
•one CD containing the AMI ASM (AMI Server Manager) server management
program. Please refer to the ASM manual for information on how to use this program.
•one termination card
•two VRM modules
•two retention mechanisms for the Pentium II/Pentium III CPUs
•Warranty Card
•the American Megatrends MegaDual Pentium II/ Pentium IIIPCI Motherboard
User's Guide

Chapter 1 Hardware Installation 1
1Hardware Installation
Overview
The American MegatrendsMegaDual Pentium II/III features include:
•support for two Intel Pentium II/Pentium III CPUs
•support for all Pentium II/Pentium III frequencies
•up to 4 GB of onboard ECC SDRAM system memory
•system memory parity checking or ECC (Error Checking and Correction)
•PCI local bus throughput of 132 MB/s for 32-bit at 33 MHz, and 512MB/s for 64-bit at
66 MHz
•onboard dual channel 160M SCSI controller
•the ASM server management software
•four 32-bit, 33 MHz PCI expansion slots
•two 64-bit, 66 MHz PCI expansion slots
•an AGP PRO 4x connector
•10/100 MB onboard LAN
Warning – Danger of Battery Shorting
In PCI Slot #4 (J11), some adapter cards with larger Ground brackets may short
out the battery. This is not a problem with most PCI adapter cards. If there is a
problem with the PCI adapter card, the battery may drain and a CMOS error may
occur. Please make sure that the bracket mounting screws do not touch the
battery terminal when inserting PCI adapter cards in PCI Slot #4 (J11). If the
screws touch the battery terminal, install the PCI adapter card in a different
PCI Slot.
CPUs This motherboard supports all Intel Slot1 CPUs. CPU speed can be set in the AMIBIOS
setup.
Note: Boxed CPUs come with pre-set clock speed ratios. For these CPUs, there is no BIOS
option to configure CPU speed.
Cont’d

MegaDual PCI Motherboard User’s Guide2
Overview, Continued
PCI Bus Speed AMIBIOS automatically configures the PCI slots. The PCI slots are synchronous with the
CPU clock:
CPU External Clock
Frequency PCI Expansion Slot Frequency
100 MHz 33 MHz for 32-bit, 66 MHz for 64-bit
133 MHz 33 MHz for 32-bit, 66 MHz for 64-bit
Onboard I/O The MegaDual motherboard includes:
•one onboard Qlogic 12160 dual 160M SCSI controller
•two 40-pin IDE connectors for 1 – 4 IDE drives
•a 34-pin floppy drive connector
•two serial port connectors
•a 25-pin parallel port connector
•a keyboard and PS/2 mouse dual mini
•two 4-pin USB ports on dual combo
•onboard 82559 10/100 Mb LAN

Chapter 1 Hardware Installation 3
MegaDual PCI Motherboard Layout

MegaDual PCI Motherboard User’s Guide4
Step 1 Unpack the Motherboard
Step Action
1Inspect the cardboard carton for obvious damage. If damaged,
call 770-246-8600. Leave the motherboard in its original packing.
2Perform all unpacking and installation procedures on a ground-
connected anti-static mat. 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 a1 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
as the wristband.
3Inside the carton, the motherboard is packed in an anti-static bag,
and sandwiched between sheets of sponge. Remove the sponge
and the anti-static bag. Place the motherboard on a grounded
anti-static surface component side up. Save the original packing
material.
4Inspect 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.
5If the motherboard is undamaged, it is ready to be installed.
Set Jumpers Set all jumpers and install the CPU before placing the motherboard in the chassis.
Avoid Static Electricity
Static electricity can damage the motherboard and other computer components. Keep the
motherboard in the anti-static bag until it is to be installed. Wear an anti-static wrist
grounding strap before handling the motherboard. Make sure you stand on an anti-static
mat when handling the motherboard.
Avoid contact with any component or connector on any adapter card, printed circuit
board, or memory module. Handle these components by the mounting bracket.