DFI 586ITBD User manual

586ITBD
Rev. BO0+
System Board
Users Manual
34220829

Copyright
This publication contains the information that is protected by copyright.
No part of it may be reproduced in any form or by any means or
used to make any transformation/adaptation without the prior written
permission from the copyright holders.
This publication is provided for informational purposes only. The
manufacturer makes no representations or warranties with respect to
the contents or use of this manual and specifically disclaims any express
or implied warranties of merchantability or fitness for any particular
purpose.The user will assume the entire risk of the use or the results
of the use of this document. Further, the manufacturer reserves the
right to revise this publication and make changes to its contents at any
time, without obligation to notify any person or entity of such revisions
or changes.
All Rights Reserved. © 1998
Trademarks
Microsoft®MS-DOS®, WindowsTM and Windows®95 are registered
trademarks of Microsoft Corporation. Intel and Pentium are registered
trademarks of Intel Corporation. Cyrix, 6x86, 6x86L and 6x86MX
are registered trademarks of Cyrix Corporation. AMD, K5 and K6
are registered trademarks of Advanced Micro Devices, Inc. IBM is a
registered trademark of International Business Machine Corporation.
Award is a registered trademark of Award Software, Inc. Other
trademarks and registered trademarks of products appearing in this
manual are the properties of their respective holders.
Caution:
Danger of explosion if battery incorrectly replaced.
Replace only with the same or equivalent type recommended by the
manufacturer.
Dispose of used batteries according to the battery manufacturers
instructions.

FCC and DOC Statement on Class B
This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to Part 15 of the FCC
rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a
residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful
interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
 Reorient or relocate the receiving antenna.
 Increase the separation between the equipment and the
receiver.
 Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
 Consult the dealer or an experienced radio TV technician for
help.
Notice:
1. The changes or modifications not expressly approved by the
party responsible for compliance could void the user's
authority to operate the equipment.
2. Shielded interface cables must be used in order to comply
with the emission limits.

Table of Contents
Chapter 1 - Introduction
Features and Specifications.............................................................................
Package Checklist..................................................................................................
7
14
Chapter 3 - Award BIOS Setup Utility
The Basic Input/Output System..................................................................
Standard CMOS Setup.....................................................................................
BIOS Features Setup..........................................................................................
Chipset Features Setup.....................................................................................
Power Management Setup..............................................................................
PNP/PCI Configuration.....................................................................................
Load Fail-Safe Settings........................................................................................
Load Optimal Settings.......................................................................................
Integrated Peripherals........................................................................................
Supervisor Password..........................................................................................
User Password.......................................................................................................
48
48
52
56
57
62
64
64
65
68
68
Chapter 2 - Hardware Installation
Preparing the Area...............................................................................................
Handling the System Board............................................................................
Installing the System Board.............................................................................
Board Layout...........................................................................................................
System Memory.....................................................................................................
Cache Memory.......................................................................................................
Processor Upgrade Information..................................................................
Jumper Settings for Intel Processors................................................
Jumper Settings for Cyrix/IBM Processors...................................
Jumper Settings for AMD Processors..............................................
Installing Upgrade Processors...............................................................
Jumper Settings for CMOS Clear...............................................................
Jumper Settings for Modem Ring-on........................................................
Ports and Connectors.......................................................................................
Expansion Slots.......................................................................................................
16
16
17
19
20
25
25
26
27
28
29
33
33
35
46

Appendix A - DIM and SIM Modules
Types of Modules................................................................................................. 77
Appendix B - Memory and I/O Maps
Memory Address Map......................................................................................
I/O Address Map.................................................................................................
80
80
Appendix C - System Error Report
POST Beep..............................................................................................................
Error Messages.......................................................................................................
83
83
Appendix D - Troubleshooting
Troubleshooting Checklist................................................................................ 86
IDE HDD Auto Detection..............................................................................
Save & Exit Setup.................................................................................................
Exit Without Saving.............................................................................................
69
70
70
Chapter 4 - Supported Softwares
Desktop Management Interface..................................................................
Drivers........................................................................................................................
72
75

1
Introduction
CHAPTER

1
Introduction
7
Features and Specifications
Processor Upgrade
The system board is equipped with a 321-pin ZIF socket (Intel

Socket 7). This socket is designed for easy removal of an old
processor and easy insertion of an upgrade processor. The system
board is also equipped with a switching voltage regulator that
supports 2.0V, 2.2V, 2.8V, 2.9V, 3.2V, 3.3V and 3.5V core voltage for
various processors.
 Intel Pentium

processor with MMXTM technology-166/200/
233MHz
 Intel Pentium

90/100/120/133/150/166/200MHz
 Cyrix

6x86L PR150+/PR166+ and 6x86MX-PR166/PR200/
PR233, M II-300
 AMD

K5 PR90/PR100/PR120/PR133/PR166
 AMD

K6-166, K6-200, K6-233, K6-266, K6-300 and K6-2/266
Chipset
 Intel

82430TX PCIset chipset
System Memory
The system board supports 8MB to 256MB of memory. It is
equipped with two DIMM and four SIMM sockets. The 168-pin
DIMM sockets use x64 EDO (60/70ns), fast page mode (60/
70ns), or SDRAM (10/12/13ns), 3.3V. The 72-pin SIMM sockets
use EDO or fast page mode, 60/70ns, x32 DRAM, 5V.
Cache Memory
 512KB pipeline burst, direct map write-back cache installed on
the system board.
BIOS
 Award BIOS, Windows

95 Plug and Play compatible
 Flash EPROM for easy BIOS upgrades
 Supports DMI function

586ITBD System Board Users Manual
1
8
Energy Efficient Design
 System power management supported
 CPU stopped clock control
 Hardware supports SMI green mode
 Microsoft®/Intel®APM 1.2 compliant
 Soft Power supported - ACPI v1.0a specification (ATX power
supply only)
ACPI Specification and OS Directed Power
Management (ATX power supply only)
The system board is designed to meet the ACPI (Advanced
Configuration Power Interface) specification. It has energy saving
features which enable operating systems to reliably manage and
coordinate power planes, PnP (Plug-and-Play) peripherals, and
cooling fans. The system board is PC 97 compliant. Microsoft
's
PC 97 "OnNow" design allows continual "power on" with reduced
energy consumption.
RTC Timer to Power-on the System
The RTC installed on the system board allows your system to
automatically power-on on the set day and time. Set the day and
time you would like your system to power-on in the Resume By
Alarm field (Power Management Setup) of the Award BIOS.
Modem Wake-up/Ring-on
The Modem Wake-Up feature allows the sleeping (Suspend
mode) PC to wake-up to respond to incoming calls. The Modem
Ring-on feature allows the Soft Power Down (Soft-Off) PC to
power-on to respond to incoming calls. Enable this function in the
Resume By Ring field and select an IRQ channel for the external
modem in the Modem Use IRQ field (Power Management
Setup). Make sure to set JP2 to the COM port where your
modem is connected.
Note:
This feature supports external modem only.

1
Introduction
9
Dual Function Power Button
Depending on the setting in the BIOS setup, this switch will allow
your system to enter the Soft-Off or Suspend mode. Soft-Off By
PWR-BTTN in the Power Management Setup (Chapter 3) allows
you to select the method of powering off your system.
HDD Interface
 Two PCI IDE interfaces support up to four IDE devices
 Ultra DMA/33 supported (Synchronous DMA mode - data
transfer rate up to 33MB/sec.)
 PIO Mode 3 and Mode 4 Enhanced IDE (data transfer rate up
to 16.6MB/sec.)
 Bus mastering reduces CPU utilization during disk transfer
 ATAPI CD-ROM supported
 LS-120 and ZIP supported
FDD Interface
 One floppy drive interface supports two 360KB, 720KB,
1.2MB, 1.44MB, or 2.88MB floppy drives.
Onboard I/O
 Two NS16C550A-compatible serial ports
 One SPP/ECP/EPP parallel port
 One PS/2 mouse port
 One PS/2 or AT keyboard port
 One 20-pin ATX power supply connector
 One 12-pin standard AT power supply connector
USB Ports
The system board is equipped with two connectors for external
USB ports. USB allows data exchange between your computer
and a wide range of simultaneously accessible external Plug and
Play peripherals.

586ITBD System Board Users Manual
1
10
IrDA Interface
The system board is equipped with an IrDA connector for
wireless connectivity between your computer and peripheral
devices.
Expansion Slots
The system board is equipped with 3 dedicated PCI slots, 2
dedicated 16-bit ISA slots and 1 shared PCI/ISA slot. All PCI and
ISA slots are bus masters.
Power Supply Connectors
The system board is a Baby AT form factor system board
designed to fit into an ATX form factor chassis. The board is
equipped with both ATX and AT power supply connectors.
Power-Supply Type in the Chipset Features Setup must be set
according to the type of power supply installed in your computer.
The default is AT (for an AT power supply). If you are using an
ATX power supply, make sure to set this field to ATX.
Using an ATX power supply, you can either shut down your com-
puter by pressing the Power button located on the front bezel of
your computer or by executing the Shut Down command under
the Windows

95 operating system. Your system will then enter
the Soft Off state.
To power-on your system automatically, enable Resume By Alarm
in the Power Management Setup of the Award BIOS. This will
allow you to set the day and time you would like your system to
power-on.
An ATX power supply also provides adequate airflow throughout
the chassis to prevent overheating the processor.