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G586OPC

Rev. 0 +

System Board

User’s Manual

- D28450828 -

No part of this document may be copied, reproduced in

any form or by any means or used to make any trans-

formation/adaptation without the prior written consent

of DFI, Inc.

DFI, Inc. makes no warranties with respect to this

documentation 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. DFI, Inc. 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 person or entity of such

changes. Further, DFI, Inc. assumes no responsibility

for any errors that may appear in this document.

DFI is a registered trademark, and G586OPC is a

trademark of Diamond Flower, Inc. All other product

names mentioned are trademarks or registered trade-

marks of their respective companies.

vFCC 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 interfer-

ence 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.

v Table of Contents v

Introduction ..............................................................................

Features and Specifications .........................................

Package Checklist ........................................................

Installation Overview ...............................................................

Preparing the Area ..............................................................

Handling the System Board ................................................

Tips in Handling the System Board ..............................

Hardware Installation ...........................................................

Memory Installation .......................................................

Installing the Modules ............................................

Board Configuration ......................................................

Jumper Settings for Display Type and

CMOS Clean ..........................................................

Jumper Settings for Super I/O Setting ..................

Cache Configuration .....................................................

Installing Asynchronous SRAM .............................

Jumper Settings for Cache Memory ...............

256KB Cache SRAM ................................

512KB Cache SRAM ................................

1MB Cache SRAM ...................................

Installing the Synchronous Cache Module .....

Jumper Settings ........................................

Installation .................................................

VRM Header .................................................................

VRM Header and 3.3V Pentium Processor ...........

VRM Header and Future Low-Voltage CPUs ........

CPU Installation ............................................................

Jumper Settings for CPU .......................................

Jumpers JP3, JP4, JP9, JP10, JP18, JP19, JP20

JP21 and JP24 .............................................................

Installing Upgrade CPUs ..............................................

Built-in Ports ........................................................................

Serial Ports ...................................................................

PS/2 Mouse Port ...........................................................

Parallel Port ..................................................................

Floppy Disk Drive Connector ........................................

IDE Hard Disk Interface ................................................

Installing Expansion Cards ..................................................

Installing the System Board ................................................

IDE Device Drivers ..............................................................

Troubleshooting Checklist .....................................................

Appendix A:PCI I/O Pin Assignments ..................................

Appendix B:ISA I/O Pin Assignments ..................................

Appendix C:Connector Pin Assignments ............................

PCI/ISA System Board

vIntroduction

The G586OPC system board offers several advanced

features integrated into the system board. Its design is

based on the new Peripheral Component Interconnect

(PCI) local bus and Industry Standard Architecture

(ISA) standards.

The G586OPC provides a 321-pin Zero Insertion Force

(ZIF) CPU socket for PentiumTM processors running at

75MHz, 90MHz, 100MHz, 120MHz, 133MHz or

150MHz frequency. This ZIF socket allows users to

easily upgrade their CPUs. It also provides a VRM

(Voltage Regulation Module) header allowing you to

upgrade to future low-voltage CPUs.

The G586OPC is equipped with three PCI slots, three

ISA slots and one shared PCI/ISA slot.

The G586OPC board has two bus master PCI IDE

connectors. Bus mastering reduces CPU use during disk

transfer. The system board is also equipped with two

NS16C550A-compatible serial ports, an SPP/EPP/ECP

parallel port, a floppy disk drive controller, one PS/2

mouse port and one PS/2 keyboard connector.

The G586OPC can support 2MB to 128MB of memory

using 256Kx36, 512Kx36, 1Mx36, 2Mx36, 4Mx36 and

8Mx36 72-pin SIM modules.

G586OPC

Features and Specifications

Processor

•Intel PentiumTM 75/90/100/120/133/150MHz

•Future Pentium Processor and Pentium OverDrive

Processor

Chipset

•OPTI Viper-M chipset

Energy Efficient Design

•Supports System Power Management

•CPU stopped clock control

•Hardware supports SMI green mode

•Microsoft/Intel APM 1.1 compliant

Two Bus Master PCI IDE Connectors

•PIO Modes 3 & 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 use during disk

transfer

•ATAPI IDE CD-ROM supported

Integrated I/O

•Super I/O controller: SMC FDC37C665GT,

SMC FDC37C669GT or

UMC8669

•Two NS16C550A-compatible high speed UARTs

•One SPP/EPP/ECP parallel port

•One 720KB/1.2MB/1.44MB/2.88MB floppy

controller

•PS/2 mouse port

•PS/2 keyboard connector or AT keyboard

connector

PCI/ISA System Board

BIOS

•Award Plug & Play BIOS

•Supports Enhanced IDE devices

•Supports Enhanced IDE HDDs larger than 528MB

(LBA mode only)

Architecture

•PCI/ISA

Cache

•256KB, 512KB or 1MB direct map write-back or

write-through cache

•32Kx8, 64Kx8 or 128Kx8 asynchronous SRAM

(supports 5V/3.3V mixed voltage SRAM)

•160-pin cache module upgrade slot for optional

synchronous pipeline burst cache module

Memory

•2MB to 128MB onboard memory

•Four 72-pin SIMM sockets

•Supports single and/or double density SIMMs

•256Kx36, 512Kx36, 1Mx36, 2Mx36, 4Mx36 or

8Mx36 parity SIMMs

•x32 non-parity SIMMs supported

•Supports 60ns or 70ns fast page mode DRAM or

EDO DRAM

Expansion Slots

•Three dedicated PCI slots

•One shared PCI/ISA slot

•Three dedicated 16-bit ISA slots

With the optional synchronous pipeline burst

cache module installed in the 160-pin cache

module upgrade slot, the length of the add-in card

in PCI Slot 2 is limited to 124,65 mm.

G586OPC

VRM and ZIF Sockets

•VRM (Voltage Regulation Module) header

allows upgrade to future low-voltage CPUs

•321-pin ZIF socket (Intel Socket 7)

Board Dimensions

•28cm (11.02") x 22cm (8.58")

PCI/ISA System Board

Package Checklist

The G586OPC package contains the following items:

•The G586OPC system board

•The G586OPC user’s manual

•One set of IDE driver diskettes

•One 34-pin floppy disk drive cable

•Two 40-pin IDE hard disk cables

•One 25-pin printer port cable for chassis mounting

•One card-edge bracket with serial and mouse port

cables

If any of these items is missing or damaged, please

contact your dealer or sales representative for assistance.

G586OPC

vInstallation Overview

This chapter summarizes the steps in installing the

G586OPC 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. Please refer to the memory chart, on pages 8

and 9, for the number and type of SIM modules

needed for the amount of memory you require.

Preparing the Area

Before unpacking the system board, make sure the

location you have selected is relatively free of dust and

static electricity. Excessive exposure to dust, static

electricity, direct sunlight, excessive humidity, extreme

cold, and water can damage the operational capabilities

of your system board. Avoid placing the unit on surfaces

such as carpeted floors. These areas attract static elec-

tricity 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 recom-

mend that you use a surge suppressor. This will protect

the system 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

PCI/ISA System Board

ideal location, unpack the G586OPC system board

carefully.

Handling the System Board

It is quite easy to inadvertently damage your system

board even before installing it to your system unit.

Static electrical discharge can damage computer compo-

nents without causing any signs of physical damage.

You must take extra care in handling the system board

to ensure against electrostatic build-up.

Tips in Handling the System Board

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 wriststrap.

3. Do all preparation work on a static-free surface with

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 upgrade

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

G586OPC

ESD protection by wearing an antistatic 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.

Hardware Installation

Memory Installation

The G586OPC system board can support 2MB to

128MB of memory using 72-pin SIMMs (Single In-Line

Memory Module).

The SIMM sockets are divided into two banks on the

system board. The G586OPC system board uses

256Kx36, 512Kx36, 1Mx36, 2Mx36, 4Mx36 and

8Mx36 SIMMs. Non-parity (x32) SIMMs can also be

used if parity checking is turned off in CMOS setup.

You will need 2 or 4 pieces of SIMMs, depending on

the amount of memory you intend to install.

To install the SIM modules, first populate Bank 0 and

then Bank 1, or the system will not work.

The table on the next page summarizes the bank loca-

tions and modules needed for the corresponding memory

sizes. Each bank consists of 2 SIMM sockets.

PCI/ISA System Board

Memory SizeBank 0Bank 1

2MB256Kx36-

4MB256Kx36256Kx36

4MB512Kx36-

8MB512Kx36512Kx36

8MB1Mx36-

16MB1Mx361Mx36

16MB2Mx36-

32MB2Mx362Mx36

32MB4Mx36-

48MB2Mx364Mx36

64MB4Mx364Mx36

64MB8Mx36-

68MB512Kx368Mx36

72MB1Mx368Mx36

80MB2Mx368Mx36

96MB4Mx368Mx36

128MB8Mx368Mx36

G586OPC

VRM Header

Pin 1 of the SIMM socket

Locations of the SIM Sockets on the System Board

PCI/ISA System Board

Installing the Modules

A SIMM simply snaps into a socket on the system

board. Pin 1 of the SIMM must correspond with Pin 1

of the socket.

1. Position the SIMM above the socket with the

“notch” in the module aligned with the “key” on the

socket.

2. Seat the module at a 45o angle into the bank. Make

sure it is completely seated. Tilt the module upright

until it locks in place in the socket.

G586OPC

Board Configuration

The G586OPC has jumpers and connectors onboard.

Make sure the jumpers are set correctly before installing

the system board into your system unit.

HJ1

PCI/ISA System Board

Jumper Settings

Jumper Settings for Display Type and CMOS Clean

Locations of Jumpers JP1 and JP11 on the

G586OPC System Board

G586OPC

Jumper JP1

Display Type Select

Jumper JP1 sets the display adapter to color or mono.

This jumper must match the type of display adapter

installed. If you change your video adapter, make sure

this jumper is changed accordingly.

JP1 Off: Color

(Default)JP1 On: Mono

Jumper JP11

CMOS Clean Select

If, for some reason, the CMOS becomes corrupted, the

system can be reconfigured with the default values

stored in the ROM BIOS. To load the default values,

switch off your computer and remove the cover. Touch

the power supply box to discharge any static electric

buildup in your body. Set JP11 to On for approximately

5 seconds, then return to the default position (Off). Put

the cover back and power up your system.

JP11 Off: Normal

(Default)JP11 On: CMOS

Clean

PCI/ISA System Board

Jumper Settings for Super I/O Setting

Locations of Jumpers JP5 and JP6

on the G586OPC System Board

G586OPC

Jumper JP5

ECP DRQ Select

The G586OPC system board supports an ECP parallel

port that allows you to use DMA Request (DRQ) Chan-

nel 1 or 3. Set Jumper JP5 so the ECP port does not

conflict with an add-on card's DMA channel.

2-3 On: ECP DRQ 11-2 On: ECP DRQ 3

(Default)

Jumper JP6

ECP DACK Select

The G586OPC system board supports an ECP parallel

port that allows you to use DMA Acknowledge (DACK)

Channel 1 or 3. Set Jumper JP6 so the ECP port does

not conflict with an add-on card's DMA channel.

2-3 On: ECP DACK 3

(Default)

1-2 On: ECP DACK 1

PCI/ISA System Board

Cache Configuration

The G586OPC system board can support either asyn-

chronous cache SRAM or synchronous (pipelined

burst) cache SRAM. Three cache sizes are supported:

256KB, 512KB and 1MB. 256KB is the default size.

Installing Asynchronous Cache SRAM

The SRAM sockets allow you to install either 32Kx8,

64Kx8 or 128Kx8 SRAM. Regardless of the amount of

cache memory installed, one 32Kx8 (U23) is needed for

tag RAM to store the cacheable addresses. The locations

of the SRAM sockets on the system board are shown on

the next page.

SRAM Socket

G586OPC

Pin 1 of the SRAM

socket

PCI/ISA System Board

Jumper Settings for Cache Memory

Locations of Jumpers JP12, JP13, JP14, JP15, JP22 and

JP23 on the G586OPC System Board

G586OPC

32Kx8 (TAG)

U23

(5V SRAM)

U32

32Kx8

U35U34U33

32Kx8

U31U30U29U28

231

* Default Setting

JP13

JP14

JP15

JP12

JP22

JP23

256KB Cache SRAM *

5V/3V Mixed Voltage SRAM

PCI/ISA System Board

256KB Cache SRAM

3.3V SRAM

32Kx8 (TAG)

U23

(5V SRAM)

U32

32Kx8

U35U34U33

32Kx8

U31U30U29U28

231

JP13

JP14

JP15

JP12

JP22

JP23

G586OPC

512KB Cache SRAM

5V/3.3V Mixed Voltage SRAM

32Kx8 (TAG)

U23

(5V SRAM)

U32U35U34U33U31U30U29U28

231

JP13

JP14

JP15

JP12

JP22

JP23

64Kx8

PCI/ISA System Board

512KB Cache SRAM

3.3V SRAM

32Kx8 (TAG)

U23

(5V SRAM)

U32U35U34U33U31U30U29U28

231

JP13

JP14

JP15

JP12

JP22

JP23

64Kx8

G586OPC

1MB Cache SRAM

5V/3.3V Mixed Voltage SRAM

32Kx8 (TAG)

U23

(5V SRAM)

U32U35U34U33U31U30U29U28

231

JP13

JP14

JP15

JP12

JP22

JP23

128Kx8

PCI/ISA System Board

1MB Cache SRAM

3.3V SRAM

32Kx8 (TAG)

U23

(5V SRAM)

U32U35U34U33U31U30U29U28

231

JP13

JP14

JP15

JP12

JP22

JP23

64Kx8

G586OPC

Installing the Synchronous Cache Module

Jumper Settings

JP12

JP13

31 2 31 2

JP14JP15

31 2

Note:

Jumpers JP22 and JP23 are used to select the Level 2

asynchronous cache size. These two jumpers can be

ignored when installing the optional synchronous cache

module.

PCI/ISA System Board

Installation

1.Before installing the optional synchronous pipeline burst

cache module, make sure that:

-the cache chips have been removed from the

SRAM sockets U23 (Tag RAM) and U28-U35;

-Jumpers JP12-JP15 have been set properly (page

26).

2.Locate the 160-pin cache module slot on the system

board. Position the cache module above the slot. Make

sure pin 1 of the cache module is aligned with pin 1 of

the slot. Carefully slide the module into the slot. Press

firmly on the top of it to seat it properly.

Note:

With the optional synchronous pipeline burst cache

module installed in the cache module slot, the length of

the add-in card in PCI Slot 2 is limited to 124,65 mm.

G586OPC

3.Once the synchronous cache module has been installed,

you should make the following modifications in the

“Chipset Features Setup” menu of the Award BIOS

CMOS Setup Utility.

1.SRAM Type:Sync

2.SYNC SRAM Support:Pipeline

3.Cache Read Burst:3-1-1-1

4.Cache Write Burst:3-1-1-1 or 4-1-1-1

PCI/ISA System Board

VRM Header

Your G586OPC system board is equipped with a VRM

(Voltage Regulation Module) header shown below. It

allows you to upgrade to future low-voltage CPUs by

installing a Voltage Regulation Module.

VRM Header on the System Board

VRM Header and 3.3V Pentium Processor

When using a 3.3V Pentium processor, pins 4-5, 6-7,

19-20 and 21-22 of the VRM header must be set to On.

These settings are presented on the next page.

G586OPC

Pins 4-5, 6-7, 19-20 and 21-22 are set to On

VRM Header and Future Low-Voltage CPUs

The types of VRM supported and installation procedures

will be described in a future edition of the G586OPC

manual.

PCI/ISA System Board

CPU Installation

The G586OPC is equipped with a 321-pin Zero

Insertion Force (ZIF) socket at location U26 of the

system board. The ZIF socket allows for easy

installation of upgrade CPUs as your system needs

grow. Make sure all jumpers are set correctly before

applying power, or you may damage the CPU or system

board.

Location of the ZIF Socket on the System Board

Pin 1 of the ZIF socket

U26

G586OPC

Jumper Settings for CPU

Locations of Jumpers JP7, JP8, JP16 and JP17

on the G586OPC System Board

PCI/ISA System Board

3.3V Pentium Processor (75MHz)

System (External) Bus Speed: 50MHz

JP7

JP8

321

3.3V Pentium

Processor

JP17

JP16

Pin 1

G586OPC

3.3V Pentium Processor (90MHz) *

System (External) Bus Speed: 60MHz

JP7

JP8

321

3.3V Pentium

Processor

JP17

JP16

Pin 1

* Default Setting

PCI/ISA System Board

3.3V Pentium Processor (100MHz)

System (External) Bus Speed: 50MHz

JP7

JP8

321

3.3V Pentium

Processor

JP17

JP16

Pin 1

G586OPC

3.3V Pentium Processor (100MHz)

System (External) Bus Speed: 66MHz

JP7

JP8

321

3.3V Pentium

Processor

JP17

JP16

Pin 1

PCI/ISA System Board

3.3V Pentium Processor (120MHz)

System (External) Bus Speed: 60MHz

JP7

JP8

321

3.3V Pentium

Processor

JP17

JP16

Pin 1

G586OPC

3.3V Pentium Processor (133MHz)

System (External) Bus Speed: 66MHz

JP7

JP8

321

3.3V Pentium

Processor

JP17

JP16

Pin 1

PCI/ISA System Board

3.3V Pentium Processor (150MHz)

System (External) Bus Speed: 50MHz

JP7

JP8

321

3.3V Pentium

Processor

JP17

JP16

Pin 1

G586OPC

3.3V Pentium Processor (150MHz)

System (External) Bus Speed: 60MHz

JP7

JP8

321

3.3V Pentium

Processor

JP17

JP16

Pin 1

PCI/ISA System Board

Jumpers JP3, JP4, JP9, JP10, JP18, JP19, JP20, JP21 and JP24

The following jumpers are for factory testing only and

should always be set to their default configurations.

Reconfiguring these jumpers will cause problems with

your system board.

JP3: Off

JP4, JP24: 1-2 On

JP9, JP10, JP18, JP19, JP20, JP21: On

G586OPC

Installing Upgrade CPUs

The G586OPC is equipped with a 321-pin Zero

Insertion Force (ZIF) socket at location U26 of the

system board. This socket is designed for easy removal

of the old CPU and easy insertion of the upgrade CPU.

The socket allows you to carefully place the new CPU

into its position. If you need to apply excessive force to

insert the CPU, the installation is being done incorrectly.

Warning:

Open the socket only if actually installing a CPU. The

warranty on the original CPU will be voided if the S/N

seal is broken.

Do not change any factory CPU speed jumper settings.

You do not need to change any jumpers to properly

install the 3.3V Pentium Upgrade Processor.

Before proceeding with the upgrade, take note of the

following. The microprocessor and heat sink may be hot

if the system has been running. To avoid the possibility

of a burn, power the system off and let the processor

and heat sink cool for 10 minutes.

The 321-pin ZIF socket consists of the four rows of pin

holes on each side. To prevent improper OverDrive

Processor installation, the ZIF socket has a Plug/Keying

mechanism. Several holes in the socket are plugged so

OverDrive Processors will go in only one way. If you

cannot easily insert the OverDrive Processor, verify that

pin 1 of the CPU is aligned with pin 1 of the socket. A

warning note — be extremely careful to match pin 1 of

the CPU with pin 1 of the socket. Only Intel's

OverDrive Processor is keyed to prevent improper

placement in the ZIF socket. Other Intel CPUs, as well

PCI/ISA System Board

as CPUs from other vendors, can be placed incorrectly

and will be permanently damaged.

Zero Insertion Force (ZIF) Socket

To install an upgrade CPU, do the following.

1. Make sure the handle on the side of the ZIF socket

is up. To raise the handle, push down, pull it out to

the side a little and raise it as far as it will go. The

top plate will slide back. Do not use screwdrivers or

other tools to open the socket, or damage may occur

to the system or socket. It may be necessary to

initially apply a small amount of sideways force to

free the handle from its retaining “tab.” Once clear

of the “tab,” the handle will open relatively easily.

G586OPC

Lifting the Handle

2. Once the lever is completely up, remove the old

CPU by carefully lifting it straight out of the socket.

You are now ready to insert the new CPU.

Pin 1 of the ZIF Socket

PCI/ISA System Board

3. Position the CPU above the ZIF socket. Make sure

pin 1 of the CPU is aligned with pin 1 of the socket.

Lower the chip until the pins are inserted properly in

their corresponding holes. Remember that very little

force is needed to install the CPU. If the CPU will

not insert easily, verify pin 1 of the CPU is aligned

with pin 1 of the socket. Applying too much

pressure can damage the CPU or the socket.

4. Push the handle down until the handle locks into

place. The top plate will slide forward. You will feel

some resistance as the pressure starts to secure the

CPU in the socket. This is normal and will not

damage the CPU. However, if the handle is not

completely closed, damage to the CPU and/or

system board may result.

Positioning the CPU Above the ZIF Socket

G586OPC

Clearance Requirements

The 3.3V Pentium Upgrade Processor comes with a heat

sink mounted on top. To maintain proper airflow once

the upgrade is installed on the system board, the

processor and sink require certain space clearances.

The clearance above 3.3V Pentium Upgrade Processor's

fan/heat-sink must be at least 0.4 in. The clearance on at

least 3 of 4 sides of the processor must be at least 0.2

in. The cables (for floppy drive, hard drive, CD-ROM,

etc.) must be routed clear of the CPU and its airspace.

Fan Exhaust

The CPU must be kept cool by using a fan exhaust

configuration in connection with the heatsink. The

temperature of the air entering the fan/heatsink cannot

exceed 45°C. The ambient or room temperature must be

below 37°C (99°F) for a system installed with the 3.3V

Pentium Upgrade Processor.

In order to provide proper airflow to the CPU, all

movable obstructions (power supply cables, cards,

floppy disk cables) must be clear of the CPU heatsink/

fan component in accordance with the space clearance

discussed in the CPU installation section of this manual.

PCI/ISA System Board

Built-in Ports

The G586OPC system board is equipped with two serial

ports, one SPP/EPP/ECP parallel printer port, one FDD

connector, one PS/2 mouse port and two IDE hard disk

shrouded headers.

Locations of the Built-in Ports on the System Board

G586OPC

Serial Ports

The built-in serial ports are RS-232C asynchronous

communication ports with 16C550A-compatible UARTs

that can be used with modems, serial printers, remote

display terminals, and other serial devices. They use the

following system I/O addresses:

Port ConfigurationI/O Address

COM13F8h

COM22F8h

COM3/COM43E8h/2E8h

Connecting the Serial Ports

Two DB-9P serial port cables are provided with the

motherboard. They are mounted on a card-edge bracket

along with the PS/2 mouse cable. The upper serial port

cable should be used for the COM 1 primary serial port;

connect it to Connector COM 1 on the motherboard.

The lower serial port cable should be used for the COM

2 secondary serial port; connect it to Connector COM 2

on the motherboard. Make sure the colored stripes on

the ribbon cables align with pin 1 of Connectors COM 1

and COM 2. Mount the card-edge bracket to the system

chassis.

PCI/ISA System Board

The Primary and Secondary Serial Ports

on the G586OPC System Board

PS/2 Mouse Port

The PS/2 mouse port is a 6-pin connector on the

system board. Attach the 6-pin mouse port cable, which

came in the G586OPC box, to Connector J1. Make sure

the brown wire on the PS/2 mouse connector aligns with

pin 1 of connector J1.

G586OPC

The PS/2 Mouse Port on the G586OPC System Board

Parallel Port

The G586OPC system board has a standard connector

for interfacing your PC to a parallel printer. This port is

compatible with both IBM AT printer ports and the

new, high speed, bidirectional Extended Capabilities

Port standard. The parallel port on your system board

can be set to any of the following system I/O addresses:

I/O Address:3BC-3BE Hex

378-37A Hex *

278-27A Hex

* Default setting

PCI/ISA System Board

The Parallel Printer Port on the G586OPC

System Board

Connecting the Parallel Printer Port

Attach the DB-25S printer port cable, which came with

the motherboard, to Connector J7 on the G586OPC

system board. Make sure the colored stripe on the

ribbon cable aligns with pin 1 of Connector J7. Use a

small nutdriver to mount the cable into a DB-25 cutout

in the system chassis.

Floppy Disk Drive Controller

The G586OPC system board has a built-in floppy disk

controller that supports two standard floppy disk drives.

You can install any 720KB/1.2MB/1.44MB/2.88MB

floppy disk drives.

G586OPC

Connecting the Floppy Disk Cable

The Floppy Disk Connector on the

G586OPC System Board

Step 1

Install the 34-pin header connector into the floppy disk

connector (J8) on the system board. The colored edge of

the ribbon should be aligned to pin 1 of the J8 connec-

tor.

Step 2

Install the other 34-pin header connector(s) into the disk

drive(s) with the colored edge of the daisy chained

ribbon cable aligned to pin 1 of the drive edge

connector(s). The end-most connector should be at-

tached to the drive you want to be Drive A.

PCI/ISA System Board

IDE Hard Disk Interface

The G586OPC system board is equipped with two PCI

IDE shrouded headers that will interface four IDE

(Integrated Drive Electronics) hard disk drives.

Note:

Only IDE drives can be connected to the IDE interface.

Connecting the IDE Hard Disk Interface

To prevent improper IDE cable installation, each PCI

IDE shrouded header has a keying mechanism. The 40-

pin connector on the IDE cable can be placed into the

header only if pin 1 of the connector is aligned with pin

1 of the header.

Note:

The IDE cable with a standard 40-pin connector can be

installed in the PCI IDE shrouded header. Be extremely

careful to match the colored edge of the ribbon with pin

1 of the header.

G586OPC

Step 1

If you are connecting two hard drives, install the 40-pin

connector of the IDE cable into the primary IDE

shrouded header (1st IDE Connector). If you are adding

a third or fourth IDE device, install the 40-pin connector

of the other IDE cable into the secondary IDE shrouded

header (2nd IDE Connector).

Step 2

Install the other 40-pin header connector(s) into the

device with the colored edge of the ribbon cable aligned

to pin 1 of the drive edge connector(s).

Note:

Refer to your disk drive user's manual for information

about selecting proper drive switch settings.

The IDE Hard Disk Connector on the System Board

PCI/ISA System Board

Adding a Second IDE Hard Drive

When using two IDE drives, one must be set as the

master and the other as the slave. Follow the instruc-

tions provided by the drive manufacturer for setting the

jumpers and/or switches on the drives. No changes are

needed on the G586OPC system board when adding a

second hard drive.

We recommend that the IDE hard drives be from the

same manufacturer. In a few cases, drives from two

manufacturers will not function properly when used

together. The problem lies in the hard drives, not the

G586OPC system board.

Preparing an IDE Drive for Use

IDE disk drives are already low-level formatted, with

any bad-track errors entered, when shipped by the drive

manufacturer. Do not attempt to do a low-level format,

or you may cause serious damage to the drive.

To use an IDE drive, you need to enter the drive type

(this information is provided by the drive manufacturer)

into the system’s CMOS setup table. Then run FDISK

and FORMAT provided with DOS.

Note:

Do not run FDISK and FORMAT programs on a drive

that has already been formatted, or you will lose all

programs and data stored on the drive.

G586OPC

Installing Expansion Cards

The G586OPC is equipped with three dedicated PCI and

three dedicated ISA slots. One PCI slot and one ISA slot

are shared. You can only install a card in one or the

other of the shared slots at a time; you cannot install

devices in both slots. Due to the size of the the optional

synchronous pipeline burst cache module installed in the

160-pin cache module upgrade slot, the length of the

card in PCI Slot 2 is limited. Refer to page 27 for limita-

tions. The locations of the expansion slots are shown on

the next page.

Note:

The BIOS needs to be configured for the PCI add-on

cards installed in the PCI slots. Refer to the “PCI

Configuration Setup” chapter presented in the “Initial

Setup Program” section of the manual.

PCI/ISA System Board

Expansion Slots on the G586OPC

System Board

Master/Slave

G586OPC

Installing the System Board

Before installing the system board into your system unit,

you should prepare the tools you will need:

You will need:

•one medium size, flat-bladed screwdriver

•one medium Phillips screwdriver

Step 1

Unlock your system unit. Turn off the power and dis-

connect all power cords and cables.

Step 2

Remove the system unit cover. Refer to the

manufacturer’s instructions if necessary.

Step 3

Remove expansion cards seated in any of the expansion

slots and detach all connectors from the old system

board.

Step 4

Loosen the screws holding the original system board and

remove the board from the system. Save the screws.

PCI/ISA System Board

Step 5

Remove the G586OPC from its original packing box.

Be careful to avoid touching all connectors and pins on

the board. Please refer to the handling instructions on

pages 6-8 for proper handling techniques.

Step 6

Insert the SIMMs into the SIMM banks on the

G586OPC. The quantity and location of the SIMMs is

dependent upon the memory configuration and type of

modules you intend to use.

Step 7

Install the CPU. Be sure pin 1 of the CPU is aligned

with pin 1 of the socket.

Step 8

Set the corresponding jumpers.

Step 9

Install the prepared G586OPC system board into the

case and replace the screws.

Step 10

Reinstall all cards and connectors and replace the sys-

tem unit cover. Reconnect all power cords and cables.

G586OPC

vIDE Device Drivers

To install the drivers supported by the system board,

please refer to the “Read Me” file contained on the

installation diskette.

PCI/ISA System Board

vTroubleshooting Checklist

If you experience difficulty with the G586OPC system

board, please refer to the checklist below. If you still

cannot isolate the problem, please contact your dealer.

1) Check the jumper settings to ensure that the jumpers

are properly set. If in doubt, refer to the “Board

Configuration” section.

2) Verify that all SIM modules are seated securely into

the bank sockets.

3) Make sure the SIM modules are in the correct loca-

tions.

4) Check that all populated memory banks are filled

with valid size SIM modules.

5) If your board fails to function, place the board on a

flat surface and seat all socketed components (gently

press each component into the socket).

6) If you made changes to the BIOS settings, re-enter

setup and load the BIOS defaults.

G586OPC

vAppendix A: PCI I/O Pin Assignments

- 01 -

- 02 -

- 03 -

- 04 -

- 05 -

- 06 -

- 07 -

- 08 -

- 09 -

- 10 -

- 11 -

- 12 -

- 13 -

- 14 -

- 15 -

- 16 -

- 17 -

- 18 -

- 19 -

- 20 -

- 21 -

- 22 -

- 23 -

- 24 -

- 25 -

- 26 -

- 27 -

- 28 -

- 29 -

- 30 -

- 31 -

- 32 -

- 33 -

- 34 -

- 35 -

- 36 -

- 37 -

- 38 -

- 39 -

- 40 -

- 41 -

- 42 -

- 43 -

- 44 -

- 45 -

- 46 -

- 47 -

- 48 -

- 49 -

- 52 -

- 53 -

- 54 -

- 55 -

- 56 -

- 57 -

- 58 -

- 59 -

- 60 -

- 61 -

- 62 -

TRST#

+12V

TMS

TDI

+5V

INTA#

INTC#

+5V

Reserved

+5V (I/O)

Reserved

Ground

Reserved

RST#

+5V (I/O)

GNT#

Ground

Reserved

AD[30]

+3.3V

AD[28]

AD[26]

Ground

AD[24]

IDSEL

+3.3V

AD[22]

AD[20]

Ground

AD[18]

AD[16]

+3.3V

FRAME#

Ground

TRDY#

Ground

STOP#

+3.3V

SDONE

SBO#

Ground

PAR

AD[15]

+3.3V

AD[13]

AD[11]

Ground

AD[09]

C/BE[0]#

+3.3V

AD[06]

AD[04]

Ground

AD[02]

AD[00]

+5V (I/O)

REQ64#

+5V

-12V

TCK

Ground

TDO

+5V

INTB#

INTD#

PRSNT1#

Reserved

PRSNT2#

Ground

Reserved

Ground

CLK

Ground

REQ#

+5V (I/O)

AD[31]

AD[29]

Ground

AD[27]

AD[25]

+3.3V

C/BE[3]#

AD[23]

Ground

AD[21]

AD[19]

+3.3V

AD[17]

C/BE[2]#

Ground

IRDY#

+3.3V

DEVSEL#

Ground

LOCK#

PERR#

+3.3V

SERR#

+3.3V

C/BE[1]#

AD[14]

Ground

AD[12]

AD[10]

Ground

AD[08]

AD[07]

+3.3V

AD[05]

AD[03]

Ground

AD[01]

+5V (I/O)

ACK64#

+5V

Component Side Solder Side

PCI/ISA System Board

vAppendix B: ISA I/O Pin Assignments

- 01 -

- 02 -

- 03 -

- 04 -

- 05 -

- 06 -

- 07 -

- 08 -

- 09 -

- 10 -

- 11 -

- 12 -

- 13 -

- 14 -

- 15 -

- 16 -

- 17 -

- 18 -

- 19 -

- 20 -

- 21 -

- 22 -

- 23 -

- 24 -

- 25 -

- 26 -

- 27 -

- 28 -

- 29 -

- 30 -

- 31 -

-Mem CS16

-I/O CS16

IRQ10

IRQ11

IRQ12

IRQ13

IRQ14

-Dack0

DRQ0

-Dack5

DRQ5

-Dack6

DRQ6

-Dack7

DRQ7

+5V DC

-Master

Gnd

- 01 -

- 02 -

- 03 -

- 04 -

- 05 -

- 06 -

- 07 -

- 08 -

- 09 -

- 10 -

- 11 -

- 12 -

- 13 -

- 14 -

- 15 -

- 16 -

- 17 -

- 18 -

SBHE

LA23

LA22

LA21

LA20

LA19

LA18

LA17

-Memr

-Memw

SD08

SD09

SD10

SD11

SD12

SD13

SD14

SD15

Gnd

Reset Drv

+5V DC

IRQ9

-5V DC

DRQ2

-12V DC

OWS

+12V DC

Gnd

-SEMEMW

-SEMEMR

-IOW

-IOR

-Dack3

-DRQ3

-Dack1

DRQ1

-Refresh

CLK

IRQ7

IRQ6

IRQ5

IRQ4

IRQ3

-Dack2

T/C

Bale

+5V DC

OSC

Gnd

-I/O Chck

SD7

SD6

SD5

SD4

SD3

SD2

SD1

SD0

-I/O Chrdy

AEN

SA19

SA18

SA17

SA16

SA15

SA14

SA13

SA12

SA11

SA10

SA9

SA8

SA7

SA6

SA5

SA4

SA3

SA2

SA1

SA0

G586OPC

vAppendix C: Connector Pin Assignments

HJ1

PCI/ISA System Board

Connector J1

PS/2 Mouse Connector

Function

Mouse Data

Reserved

Ground

+5V

Mouse Clock

Reserved

Connector J7

Parallel Printer Port

Function

-Strobe

Data 0

Data 1

Data 2

Data 3

Data 4

Data 5

Data 6

Data 7

-Ack

Busy

Paper Empty

Select

-Autofd

-Error

-Init

-Slctin

G586OPC

Function

Ground

Connector J8

Floppy Disk Drive Connector

Function

Ground

DENSEL

Ground

Reserved

Ground

Drate0

Ground

Index

Ground

MTR0

Ground

DR1

Ground

DR0

Ground

MTR1

Drate1

PCI/ISA System Board

Function

Dir

Ground

Step

Ground

Write Data

Ground

Write Gate

Ground

Track 0

MSEN

Wr Protect

Ground

Read Data

Ground

Head Select

Ground

Disk Change

1st IDE

Primary IDE Hard Disk Drive Connector

Function

-Reset

Ground

D10

G586OPC

Function

D11

D12

D13

D14

D15

Ground

Reserved

DRQ0

Ground

-IOW

Ground

-IOR

Ground

IOCHRDY

BALE

DACK0

Ground

IRQ14

IOCS16

SA1

Reserved

SA0

SA2

HCS0

HCS1

LED

Ground

PCI/ISA System Board

2nd IDE

Secondary IDE Hard Disk Drive Connector

Function

-Reset

Ground

D10

D11

D12

D13

D14

D15

Ground

Reserved

DRQ1

Ground

-IOW

Ground

-IOR

Ground

Reserved

BALE

DACK1

Ground

G586OPC

Function

IRQ15

IOCS16

SA1

Reserved

SA0

SA2

HCS0

HCS1

LED

Ground

COM1 and COM2

Primary (COM1) and Secondary (COM2) Serial Ports

Function

DCD (Data Carrier Detect)

RX (Receive Data)

TX (Transmit Data)

DTR (Data Terminal Ready)

Ground (Signal Ground)

DSR (Data Set Ready)

RTS (Request to Send)

CTS (Clear to Send)

RI (Ring Indicator)

PCI/ISA System Board

Connector J15

HD LED Connector

Connector J17

Speaker Connector

Function

Data

Ground

VCC

Connector J18

Keylock Connector

Function

IDE LED

VCC

Function

LED Signal

Reserved

Ground

Keylock Signal

Ground

G586OPC

Connector JP25

Green LED/Turbo LED Connector

Function

LED (-)

LED (+)

Note:

Connector JP25 functions as Green LED Connector if

the Power Management option is enabled (“Power

Management Setup”).

Connector JP26

Turbo Switch Connector

Connector S1

Hardware Reset Connector

Function

Turbo

GND

Function

GND

Reset

PCI/ISA System Board

Connector HJ1

PS/2 Keyboard Connector

Note:

Your G586OPC system board is equipped only with one

of these connectors: Connector HJ1 or Connector J2.

Function

Keyboard Data

Ground

VCC

Keyboard CLK

Connector J2

AT Keyboard Connector

Function

Keyboard CLK

Keyboard Data

Ground

VCC

G586OPC

Rev. 0 +

System Board

User’s Manual

G586OPC

Rev. 0 +

System Board

User’s Manual

- 28450828 -

G586OPC

Rev. 0 +

System Board

User’s Manual

DFI G586OPC Rev. 0+ User Manual To The Dcdfb79e 18ae 42e3 Bb7a 55b671f6f57c

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