DFI G586IPBS User Manual

G586IPBS

Rev. 0+
System Board
User’s Manual

- D29251020 -

v Copyright 1995 by DFI, Inc.

All rights reserved.
No part of this document may be copied, reproduced in any

form, or by any means or used to make any transformation/
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 G586IPBS is a trade­mark of Diamond Flower, Inc. All other product names
mentioned are trademarks or registered trademarks of their
respective companies.

v 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 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.

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 and

IRQ Select ..............................................................

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

Installing the Cache Module ..................................

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

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

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

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

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

Jumpers JP11 and JP50 ..............................................

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

1

2
5

6

6
7
7
8

8
11
12

13
15

17
17
19
19
21
22
23
32
33

G586IPBS

v Introduction

The G586IPBS 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 G586IPBS 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 low­voltage CPUs.

It is equipped with four PCI slots and three ISA slots.
The system board has two bus master PCI IDE connectors.

Bus mastering reduces CPU use during disk transfer. The
system board is also equipped with two NS16C550-compat­ible serial ports, an SPP/EPP/ECP parallel port, a floppy disk
drive controller, one PS/2 mouse port and one PS/2 or AT
keyboard connector.

The G586IPBS can support 8MB to 128MB of memory
using 1Mx36, 2Mx36, 4Mx36 and 8Mx36 72-pin SIM
modules.

1

Features and Specifications

Processor

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

• Future PentiumTM OverDrive Processor

System Design

• Intel Triton chipset

• Four 72-pin SIMM sockets

• 8MB to 128MB onboard memory

• Uses EDO or fast page mode x32 DRAM, 60 or 70ns,
5V

• 256KB or 512KB L2 cache, direct-map WB or WT

• Uses 3.3V pipeline burst or asynchronous cache SRAM
on 160-pin cache module (optional)

• EDO DRAM and pipeline burst cache SRAM give
optimal performance

• Award BIOS, Windows 95 Plug and Play compliant

• Flash EPROM for easy BIOS upgrades

Energy Efficient Design

• System power management supported

• CPU stopped clock control

• Hardware supports SMI green mode

• Microsoft/Intel APM 1.1 compliant

• External power management switch supported

G586IPBS

Two Bus Master PCI IDE Connectors

• PIO Mode 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 utilization during disk
transfer

• ATAPI IDE CD-ROM supported

2

G586IPBS

Integrated I/O

Integrated Audio System

• Super I/O controller:

- Winbond W83787F,

- Winbond W83877F,

- SMC FDC37C665GT or

- SMC FDC37C669GT

• Two NS 16C550-compatible high speed UARTs

• One SPP/EPP/ECP parallel port

• One 720KB/1.2MB/1.44MB floppy controller
(Winbond W83787F only) or
One 720KB/1.2MB/1.44MB/2.88MB floppy controller
(Winbond W83877F, SMC FDC37C665GT,
SMC FDC37C669GT)

• Plug and Play compliant (Winbond W83877F,
SMC FDC37C669GT)

• Compatible with Sound Blaster™, Sound Blaster Pro™
and Windows Sound System™

• Plug and Play compliant

• Industry leading Delta-Sigma data converters

• Dual DMA support w/FIFOs, full duplex operation

• MPC 2 compatible mixer

• Joystick port and MPU-401 compatible MIDI interface

• External FM and Wavetable synthesis support

• Serial audio data port

• Uses Crystal CS4232 multimedia audio system
controller

Connectors

• Serial ports: 2 connectors

• Parallel port: 1 connector

• IDE: 2 shrouded headers

• Floppy: 1 connector

• PS/2 mouse connector

• PS/2 keyboard connector or AT keyboard connector

• Audio DIP header

• One wavetable connector on the TWT-100 audio
expansion board

3

Expansion Slots

• Four PCI slots (all bus masters)

• Three ISA slots (one shared with PCI slot)

CPU Socket

• VRM (Voltage Regulation Module) header allows
upgrade to future low-voltage CPUs

• 321-pin ZIF socket (Intel Socket 7)

PCB

• 4 layers

• 280mm (11.02") x 220mm (8.66")

Slot Limitations

Due to the size of the CPU with its accompanying
heatsink/fan component, the length of the add-on cards
in PCI Slot 2, 3 and 4 is limited to 205 mm (measured
from the bracket of the card).

The length of the add-on card in PCI Slot 1 is limited to
205 mm only if its components protrude more than
5 mm from the components and/or solder side of the
card.

G586IPBS

4

G586IPBS

Package Checklist

The G586IPBS package contains the following items:

• The G586IPBS system board

• The G586IPBS 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

• One TWT-100 audio expansion board

• One wavetable daugher board (optional)

• Cache module (optional)

If any of these items is missing or damaged, please contact
your dealer or sales representative for assistance.

5

v Installation Overview

This chapter summarizes the steps in installing the
G586IPBS 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, page 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 also attract static electricity which can damage
some circuits on your system board.

Make sure the power source has a properly grounded, three­pronged 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 system board from
damage that may result from a power surge on the electrical
line.

G586IPBS

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 G586IPBS system board carefully.

6

G586IPBS

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 components 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 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.

7

Hardware Installation

Memory Installation

The G586IPBS system board can support 8MB to 128MB of
memory using 72-pin SIMMs (Single In-line Memory Mod­ule).

The SIM sockets are divided into two banks on the system
board. Each bank consists of 2 SIMM sockets. The
G586IPBS system board uses 1Mx36, 2Mx36, 4Mx36 and
8Mx36 SIMMs. You will need 2 or 4 pieces of SIM modules,
depending on the amount of memory you intend to install.

The table on the next page summarizes the bank locations
and modules needed for the corresponding memory sizes.

G586IPBS

8

G586IPBS

Memory Size

8MB

8MB
16MB
24MB
40MB
72MB
16MB
16MB
32MB
24MB
48MB
80MB
32MB
32MB
64MB
40MB
48MB
96MB
64MB
64MB

128MB

72MB
80MB
96MB

SM1

1Mx36

—
1Mx36
1Mx36
1Mx36
1Mx36
2Mx36

—
2Mx36
2Mx36
2Mx36
2Mx36
4Mx36

—
4Mx36
4Mx36
4Mx36
4Mx36
8Mx36

—
8Mx36
8Mx36
8Mx36
8Mx36

Bank 0

SM2

1Mx36

—
1Mx36
1Mx36
1Mx36
1Mx36
2Mx36

—
2Mx36
2Mx36
2Mx36
2Mx36
4Mx36

—
4Mx36
4Mx36
4Mx36
4Mx36
8Mx36

—
8Mx36
8Mx36
8Mx36
8Mx36

SM3

—
1Mx36
1Mx36
2Mx36
4Mx36
8Mx36

—
2Mx36
2Mx36
1Mx36
4Mx36
8Mx36

—
4Mx36
4Mx36
1Mx36
2Mx36
8Mx36

—
8Mx36
8Mx36
1Mx36
2Mx36
4Mx36

Bank 1

SM4

—
1Mx36
1Mx36
2Mx36
4Mx36
8Mx36

—
2Mx36
2Mx36
1Mx36
4Mx36
8Mx36

—
4Mx36
4Mx36
1Mx36
2Mx36
8Mx36

—
8Mx36
8Mx36
1Mx36
2Mx36
4Mx36

9

G586IPBS

Pin 1 of the SIMM socket

Locations of the SIM Sockets on the System Board

10

G586IPBS

Installing the Modules

A SIM module simply snaps into a socket on the system
board. Pin 1 of the SIM module 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.

11

Board Configuration

G586IPBS

Locations of Jumpers and Connectors on the System Board

12

G586IPBS

Jumper Settings
Jumper Settings for Display Type and CMOS Clean

13

Locations of Jumpers JP2 and JP3 on the System Board

G586IPBS

Jumper JP2

Password Clear

If you set a password in the “Password Setting” option and
forget your password, power off your system and set Jumper
JP2 to On to clear the password stored in your CMOS. Now
power on your system. After your system has detected the
floppy or hard drive, turn it off again and set JP2 to Off.

JP2 Off: Normal

(Default)

JP2 On: Password

Clear

Jumper JP3

Display Type Select

Jumper JP3 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.

1
2
3

JP3, Pins 1-2 On:

Color (Default)

JP3, Pins 2-3 On:

1
2
3

Mono

14

G586IPBS

Jumper Settings for Super I/O Setting and IRQ Select

15

Locations of Jumpers JP51 and JP52 on the System Board

G586IPBS

Note:

Jumpers JP51 and JP52 are available only on the G586IPBS
system board that supports Winbond W83787F or SMC
FD37C665GT super I/O controller.

Jumper JP51

ECP DRQ/DACK Select

The G586IPBS system board supports an ECP parallel port
that allows you to use DMA Request (DRQ) Channel 1 or 3
and DMA Acknowledge (DACK) Channel 1 or 3. Set Jumper
JP51 so the ECP port does not conflict with an add-on card's
DMA channel.

1
3
5

JP51, Pins 1-3 and 2-4 On:

ECP DRQ1/DACK1

2
4
6

1
3
5

JP51, Pins 3-5 and 4-6 On:

ECP DRQ3/DACK3

(Default)

Jumper JP52

IRQ Select

Use Jumper JP52 to select between IRQ5 and IRQ7.

3 2 1 3 2 1

JP52, Pins 2-3 On:

IRQ7 (Default)

JP52, Pins 1-2 On:

IRQ5

2
4
6

16

G586IPBS

Cache Configuration

The G586IPBS system board supports 3.3V pipeline burst or
asynchronous cache SRAM installed in the 160-pin cache
module slot. The board can be configured to the following
cache sizes: 256KB and 512KB.

Installing the Cache Module

17

Cache Module Slot

1. 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:

You do not need to modify any jumpers when installing the
cache module.

G586IPBS

2. Once the cache module has been installed, make sure the

“External Cache” option in the “BIOS Features Setup”
menu of the Award BIOS CMOS Setup Utility is set to
“Enabled”.

Note:

With the cache module installed in the cache module slot, the
length of the add-on card in PCI Slot 1 is limited to 205 mm
only if its components protrude more than 5 mm from the
components and/or solder side of the card.

18

G586IPBS

VRM Header

Your G586IPBS 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 and 3.3V Pentium Processor

19

A DVRM (Dummy Voltage Regulation Module) must be
installed if you are using a 3.3V Pentium processor.

To Install:

Position the DVRM above the header. Make sure pins A1
and B1 of the module are aligned with pins A1 and B1 of
the VRM header (see the illustration on the next page).
Carefully slide the module into the slot. Press firmly on the
top of it to seat it properly. The handles on the VRM header
will lift up automatically to secure the module.

G586IPBS

To Remove:

Press the handles on the header simultaneously. The module
will be forced out of the VRM header.

20

G586IPBS

VRM Header and Future Low-Voltage CPUs

The types of VRM supported and installation procedures
will be described in a future edition of the G586IPBS
manual.

21

CPU Installation

The G586IPBS is equipped with a 321-pin Zero Insertion
Force (ZIF) socket at location U31 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.

G586IPBS

22

G586IPBS

Jumper Settings for CPU

23

Locations of Jumpers JP5, JP6 and JP15

on the System Board

3.3V Pentium Processor (75MHz)

System (External) Bus Speed: 50MHz

G586IPBS

1

2

3

4
2

3.3V Pentium

3
4

JP15

3
1

JP6

Processor

1
2

JP5

Pin 1

24

G586IPBS

3.3V Pentium Processor (90MHz) *

System (External) Bus Speed: 60MHz

1
2
3

* Default Setting

4
2

3.3V Pentium

3
4

JP15

3
1

JP6

Processor

1
2

JP5

Pin 1

25

3.3V Pentium Processor (100MHz)

System (External) Bus Speed: 66MHz

G586IPBS

1

2

3

4
2

3.3V Pentium

3
4

JP15

3
1

JP6

Processor

1
2

JP5

Pin 1

26

G586IPBS

3.3V Pentium Processor (100MHz)

System (External) Bus Speed: 50MHz

1
2
3

4
2

3.3V Pentium

3
4

JP15

3
1

JP6

Processor

1
2

JP5

Pin 1

27

3.3V Pentium Processor (120MHz)

System (External) Bus Speed: 60MHz

G586IPBS

1

2

3

4
2

3.3V Pentium

3
4

JP15

3
1

JP6

Processor

1
2

JP5

Pin 1

28

G586IPBS

3.3V Pentium Processor (133MHz)

System (External) Bus Speed: 66MHz

1
2
3

4
2

3.3V Pentium

3
4

JP15

3
1

JP6

Processor

1
2

JP5

Pin 1

29

3.3V Pentium Processor (150MHz)

System (External) Bus Speed: 50MHz

G586IPBS

1

2

3

4
2

3.3V Pentium

3
4

JP15

3
1

JP6

Processor

1
2

JP5

Pin 1

30

G586IPBS

3.3V Pentium Processor (150MHz)

System (External) Bus Speed: 60MHz

1
2
3

4
2

3.3V Pentium

3
4

JP15

3
1

JP6

Processor

1
2

JP5

Pin 1

31

Jumpers J1, JP11 and J50

G586IPBS

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.

J1, JP11, J50: Off

32

G586IPBS

Installing Upgrade CPUs

The G586IPBS is equipped with a 321-pin Zero Insertion
Force (ZIF) socket at location U31 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.

33

The 321-pin ZIF socket consists of the five 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 as CPUs from other vendors, can be placed
incorrectly and will be permanently damaged.

G586IPBS

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.

34

G586IPBS

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

Lifting the Handle

carefully lifting it straight out of the socket. You are now
ready to insert the new CPU.

35

G586IPBS

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.

Positioning the CPU Above the ZIF 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.

36

G586IPBS

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.

37

Built-in Ports

The G586IPBS system board is equipped with two serial
ports, one SPP/EPP/ECP parallel printer port, one FDD
connector, one PS/2 mouse connector and two IDE hard
disk shrouded headers.

G586IPBS

Locations of the Built-in Ports on the System Board

38

G586IPBS

Serial Ports

The built-in serial ports are RS-232C asynchronous commu­nication ports with 16C550-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:

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 J6 on the motherboard. The lower serial port
cable should be used for the COM 2 secondary serial port;
connect it to Connector J5 on the motherboard. Make sure
the colored stripes on the ribbon cables align with pin 1 of
Connectors J6 and J5. Mount the card-edge bracket to the
system chassis.

Port Configuration I/O Address

COM1 3F8h
COM2 2F8h

COM3/COM4 3E8h/2E8h

39

G586IPBS