DFI 586IHX User manual

586IHX
Rev.A+
System Board
User’s Manual
- 32361220 -

FCC 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 in-
terference 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 in-
stallation. 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 oper-
ate the equipment.
2.Shielded interface cables must be used in order to comply with the
emission limits.
The manufacturer makes no warranties with respect to this documenta-
tion and disclaims any implied warranties of merchantability, quality, or
fitness for any particular purpose. The information in this document is
subject to change without notice. The manufacturer reserves the right to
make revisions to this publication and to make changes to any and/or
all parts of its content, at any time, without obligation to notify any per-
son or entity of such changes. Further, the manufacturer assumes no
responsibility for any errors that may appear in this document.

Table of Contents
Chapter 1: Introduction............................................................ 5
Features and Specifications.................................................. 6
Package Checklist .............................................................. 8
Chapter 2: Hardware Installation............................................... 9
Preparing the Area.............................................................. 9
Handling the System Board.................................................. 9
Installing the System Board.................................................10
Board Layout ....................................................................12
System Memory................................................................13
Installing a SIM Module.................................................15
Cache Memory.................................................................15
Installing the Cache Module...........................................16
CPU Installation................................................................16
Jumper Settings for Intel CPUs........................................17
Jumper Settings for Cyrix CPUs......................................18
Jumper Settings for AMD CPUs.......................................19
Installing Upgrade CPUs................................................20
InstallingA Fan/Heatsink for Cyrix CPUs...........................22
Jumper Settings for Display Type...........................................23
Jumper Settings for CMOS Clear..........................................23
Built-in Ports.....................................................................24
Serial Ports.................................................................24
Parallel Port ................................................................24
Floppy Disk Drive Controller...........................................25
IDE Hard Disk Interface.................................................25
Universal Serial Bus Connectors......................................27
Installing Expansion Cards...................................................28
Chapter 3: Software Installation...............................................29
Award BIOS CMOS Setup Utility...........................................29
Standard CMOS Setup..................................................30
BIOS Features Setup....................................................34
Chipset Features Setup.................................................38
Power Management Setup.............................................39
PNP/PCI Configuration..................................................41
Load BIOS Defaults......................................................43
Load Setup Defaults.....................................................43

4
Integrated Peripherals...................................................44
Supervisor Password....................................................46
User Password............................................................47
IDE HDD Auto Detection................................................47
HDD Low Level Format .................................................50
Save & Exit Setup........................................................51
Exit Without Saving.......................................................51
Desktop Management Interface (DMI)....................................51
System Error Report ..........................................................54
IDE Device Drivers.............................................................56
Chapter 4: Troubleshooting Checklist........................................57
Appendix A: Types of Modules................................................61
Appendix B: Memory and I/O Maps..........................................62
Appendix C: Connectors.........................................................64

5
The 586IHX, equipped with a 321-pin Zero Insertion Force (ZIF) CPU
socket, is a Pentiumprocessor-class system board supporting Intel
Pentium CPUs running at 75MHz, 90MHz, 100MHz, 120MHz, 133MHz,
150MHz, 166MHz and 200MHz frequencies. The 586IHX also supports
future Pentium OverDrive processors, Cyrix6x86 and 6x86L P120+/
P133+/P150+/P166+ and AMD-K5 PR75/PR90/PR100/PR120/PR133
CPUs.
The 586IHX supports 8MB to 256MB of system memory using EDO or
fast page mode DRAM. It is equipped with 4 SIMM sockets allowing you
to install x32 or x36 SIMMs. The x36 SIMM supports parity checking
which informs the user of memory failures and prevents error accumula-
tion. The system board also supports 256KB or 512KB pipeline burst
SRAM and provides easy cache upgrades using a 256KB cache
module.
The 586IHX design is based on the Peripheral Component Interconnect
(PCI) local bus and Industry Standard Architecture (ISA) standards. It is
equipped with 3 dedicated PCI slots, 3 dedicated 16-bit ISA slots and 1
shared PCI/ISA slot.
The 586IHX is equipped with two NS16C550A-compatible serial ports,
an SPP/ECP/EPP parallel port, a floppy disk drive controller, and two
PCI IDE connectors with bus mastering capabilities that highly reduce
CPU use during disk transfer. This system board is also equipped with
one PS/2 mouse port, one PS/2 keyboard port, two connectors for ex-
ternal USB ports and one IrDA connector for wireless connectivity be-
tween your computer and peripheral devices.
The 586IHX system board is designed to fit into an ATX form factor
case. 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.
Chapter 1
Introduction

6
Features and Specifications
PROCESSOR
•PentiumProcessor with MMXTechnology - 166/200
•IntelPentium75/90/100/120/133/150/166/200MHz
•Future PentiumOverDrive processor
•Cyrix6x86 and 6x86L P120+/P133+/P150+/P166+
•AMD-K5™ PR75/PR90/PR100/PR120/PR133
CHIPSET
•Intel 82430HX PCIset
CACHE MEMORY
•256KB or 512KB pipeline burst, direct map write-back cache
installed on the system board
-Onboard 256KB: upgradeable with a 256KB cache module for a
maximum of 512KB cache
-Onboard 512KB: maximum cache memory (no cache module slot)
SYSTEM MEMORY
•8MB to 256MB memory
•Four 72-pin SIMM sockets using EDO or fast page mode x32 or x36
DRAM, 60ns or 70ns, 5V
•ECC and Parity Check supported (using x36 DRAM)
BIOS
•Award BIOS, Windows 95 Plug and Play compatible
•Flash EPROM for easy BIOS upgrades
•Supports DMI function
ENERGY EFFICIENT DESIGN
•System power management supported
•CPU stopped clock control
•Hardware supports SMI green mode
•Microsoft/Intel APM compliant
•External power management switch support
•Soft Power supported

7
PCI IDE INTERFACE
•PIO Mode 3 and Mode 4 Enhanced IDE (data transfer rate up to
16.6MB/sec.)
•DMA Mode 2 Bus Master IDE (data transfer rate up to 22.2MB/sec.)
•Bus mastering reduces CPU utilization during disk transfer
•ATAPI IDE CD-ROM supported
INTEGRATED I/O
•Super I/O controller
•Two NS16C550A-compatible high speed UARTs
•One SPP/ECP/EPP parallel port
•Supports 360KB, 720KB, 1.2MB, 1.44MB, and 2.88MB floppy drives
CPU SOCKET
•321-pin ZIF socket (Intel Socket 7)
CONNECTORS
•2 connectors for external USB (Universal Serial Bus) ports
•1 connector for IrDA interface
•2 DB-9 serial ports
•1 DB-25 parallel port
•2 IDE connectors
•1 floppy connector
•1 mini-DIN-6 PS/2 mouse port
•1 mini-DIN-6 PS/2 keyboard port
•One 20-pin ATX power supply connector
•One 12-pin standard AT power supply connector
EXPANSION SLOTS
•3 dedicated PCI slots
•3 dedicated 16-bit ISA slots
•1 shared PCI/ISA slot
PCB
•4 layers, ATX form factor
•30.48cm (12") x 20.8cm (8.2")

8
Package Checklist
The 586IHX package contains the following items:
•The 586IHX system board
•The 586IHX user’s manual
•One 40-pin IDE hard disk cable
•One 34-pin floppy disk drive cable
•One IDE driver diskette
•Five spare jumpers
•One card-edge bracket with two USB ports (optional)
If any of these items are missing or damaged, please contact your
dealer or sales representative for assistance.

9
Chapter 2
Hardware Installation
This chapter summarizes the steps to install the 586IHX system board
into your system unit. It also includes a description of the area in which
you must work and directions for memory installation. Before installing
the system board, obtain the memory you plan to install. Refer to the
System Memory section for more information.
Preparing the Area
Before unpacking the system board, make sure the location you have
selected is relatively free of dust and static electricity. Excessive expo-
sure to dust, static electricity, direct sunlight, excessive humidity, ex-
treme cold, and water can damage the operational capabilities of your
system board. Avoid placing the unit on surfaces such as carpeted
floors. These areas also attract static electricity which can damage
some circuits on your system board.
Make sure the power source has a properly grounded, three-pronged
socket. It is essential that the power connection be properly grounded
for correct functioning of your system board. For further protection, we
recommend that you use a surge suppressor. This will protect the sys-
tem board from damage that may result from a power surge on the
electrical line.
Move items that generate magnetic fields away from your system board
since magnetic fields can also damage your system board. Once you
have selected the ideal location, unpack the 586IHX system board care-
fully.
Handling the System Board
It is quite easy to inadvertently damage your system board even before
installing it in your system unit. Static electrical discharge can damage
computer components without causing any signs of physical damage.
You must take extra care in handling the system board to ensure
against electrostatic build-up.

10
Static Electricity Precautions
1.To prevent electrostatic build-up, leave the board in its anti-static
bag until you are ready to install it.
2.Wear an antistatic wrist strap.
3.Do all preparation work on a static-free surface with the system
board components facing up.
4.Hold the system board by its edges only. Be careful not to touch
any of the components, contacts or connections, especially gold
contacts, on the board.
5.Avoid touching the pins or contacts on all modules and connectors.
Hold modules and connectors by their ends.
Warning:
Electrostatic discharge (ESD) can damage your processor, disk drives,
add-in boards, and other components. Perform the upgrade instruction
procedures described at an ESD workstation only. If such a station is
not available, you can provide some ESD protection by wearing an anti-
static wrist strap and attaching it to a metal part of the system chassis.
If a wrist strap is unavailable, establish and maintain contact with the
system chassis throughout any procedures requiring ESD protection.
Installing the System Board
If you are installing the 586IHX system board, the following outlines the
basic installation steps. Before installing the system board into your sys-
tem unit, you should prepare the tools you will need.
You will need:
•One medium size, flat-bladed screwdriver
•One medium Phillips screwdriver
•One needle-nosed pliers
•One small nutdriver
1.Unlock your system unit. Turn off the power and disconnect all
power cords and cables.