DFI G586OPB User manual

G586OPB
Rev. 0 +
System Board
User’s Manual
-D27850601-

vCopyright1995byDFI,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 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 G586OPB 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 Contentsv
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 Flash EPROM, PS/2 Mouse
and Display Type....................................................
Jumper Settings for Parallel Port ...........................
Cache Configuration .....................................................
Jumper Settings for Cache Memory ......................
CPU Installation ............................................................
Jumper Settings for CPU .......................................
Installing Upgrade CPUs .......................................
Built-in Ports ........................................................................
Serial Ports ...................................................................
Parallel Port ..................................................................
Floppy Disk Drive Connector ........................................
IDE Hard Disk Connector .............................................
PS/2 Mouse Port ...........................................................
Installing Expansion Cards ..................................................
Installing the System Board ................................................
1-1
1-2
1-5
2-1
2-1
2-2
2-2
2-3
2-3
2-6
2-7
2-8
2-11
2-13
2-14
2-17
2-18
2-21
2-26
2-27
2-28
2-30
2-31
2-34
2-35
2-36

3-1
3-2
3-2
3-5
3-7
3-8
3-9
3-16
3-17
3-17
3-18
3-19
3-20
4-1
5-1
A-1
B-1
C-1
D-1
E-1
F-1
G-1
Initial Setup Program ..............................................................
Award BIOS CMOS Setup Utilities .....................................
Standard CMOS Setup .................................................
BIOS Features Setup ....................................................
Chipset Features Setup ................................................
Power Management Setup ...........................................
PCI Configuration Setup ...............................................
Load BIOS Defaults ......................................................
Load Setup Defaults .....................................................
Password Setting ..........................................................
IDE HDD Auto Detection ..............................................
Save & Exit Setup .........................................................
Exit Without Saving .......................................................
IDE Device Drivers ..................................................................
Troubleshooting Checklist .....................................................
Appendix A:Types of Modules ..............................................
Appendix B:System Error Report .........................................
Appendix C:Memory & I/O Maps ..........................................
Appendix D:PCI I/O Pin Assignments ..................................
Appendix E:ISA I/O Pin Assignments ..................................
Appendix F:Connector Pin Assignments ............................
Appendix G:Award BIOS Hard Disk Table ...........................

PCI/ISASystemBoard
1-1 uIntroduction
vIntroduction
The G586OPB 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 G586OPB supports 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 supports a Flash
EPROM for easy BIOS upgrades. Flash EPROM is a
memory chip for the storage of BIOS which can be
erased in bulk or modified using a software utility.
The G586OPB is equipped with three PCI slots, three
ISA slots and one shared PCI/ISA slot.
Equipped with two built-in PCI IDE connectors, the
G586OPB system board can control four drives and
supports fast Mode 3 and 4 hard drives and hard drives
larger than 528MB under DOS. The system board is
also equipped with two NS16C550A-compatible serial
ports, an ECP/EPP parallel port, a floppy disk drive
controller, and one mini-DIN-6 connector for the PS/2
mouse.
The G586OPB can support 2MB to 128MB of memory
using 256Kx36, 512Kx36, 1Mx36, 2Mx36, 4Mx36 and
8Mx36 72-pin SIM modules.

G586OPB
Features and Specifications
Introduction u1-2
Processor
•Intel PentiumTM 75/90/100/120/133/150MHz
Chipset
•OPTI: Viper chipset
Energy Efficient Design
•Supports 3.3V CPUs
•Supports system power management
•Supports CPU stopped clock
Power Management
•Three power-saving stages: Doze, Standby and
Suspend
•Microsoft APM 1.1 supported
PCI IDE Interface
•Fast PCI local-bus interface
•Supports Mode 3, 4 Enhanced IDE
•Two IDE connectors to control four drives (e.g.
two HDDs, one tape drive and one CD-ROM)
Super I/O Interface
•Two NS16C550A-compatible serial ports
•PS/2 mouse port
•One parallel port with EPP and ECP support
•Supports 360KB, 720KB, 1.2MB, 1.44MB and
2.88MB floppy drives
•Uses NS PC87332VF super-I/O controller
BIOS
•Award Flash BIOS supports Windows 95 Plug &
Play
•Supports enhanced IDE larger than 528MB under
DOS (LBA mode only)

PCI/ISASystemBoard
1-3 uIntroduction
Architecture
•PCI/ISA
Cache Memory
•256K, 512K or 1MB direct map write-back or
write-through cache
•Uses 32Kx8, 64Kx8 or 128Kx8 SRAM
•Supports 3.3V or 3.3V/5V mixed voltage SRAM
Memory Onboard
•Up to 128MB
•Four 72-pin SIMM sockets
•Supports single and/or double density SIMMs
•256Kx36, 512Kx36, 1Mx36, 2Mx36, 4Mx36 or
8Mx36 SIMMs
•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
Due to the height of the heat sink, once the 3.3V
Pentium Upgrade Processor is in place, you cannot
install full-length add-in cards in slot connectors 1,
2 and 4 (ISA), and 1 and 2(PCI). These slots are
limitted to 2/3 length of add-in cards.
ZIF Socket
•321-pin ZIF socket (Intel Socket 7)
Board Dimensions
•33cm (12.87") x 22cm (8.58")
Baby AT form factor

G586OPB
Package Checklist
The G586OPB package contains the following items:
•The G586OPB system board
•The G586OPB 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 are missing or damaged, please
contact your dealer or sales representative for assistance.
Introduction u1-4

PCI/ISASystemBoard
vInstallation Overview
This chapter summarizes the steps in installing the
G586OPB 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 2-3
and 2-4, 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 soft
surfaces such as beds and carpeted floors which can
hinder air circulation. These areas also attract static
electricity which can damage some circuits on your
system board.
Make sure that 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 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
2-1 uInstallation Overview

G586OPB
ideal location, unpack the G586OPB 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
InstallationOverview u 2-2

PCI/ISASystemBoard
ESD portection 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 G586OPB system board can support 2MB to
128MB of memory using HSIM modules. HSIM is an
acronym for High Density Single In-line Memory.
A SIM module consists of several RAM chips soldered
onto a small circuit board. A SIM module connects to
the system board via a 72-pin card-edge connector.
The SIM sockets are divided into two banks on the
system board. The G586OPB system board uses
256Kx36, 512Kx36, 1Mx36, 2Mx36, 4Mx36 and
8Mx36 HSIM modules.
You will need 2 or 4 pieces of SIM modules, depending
on the amount of memory you intend to install. Your
system board can be configured with 2MB, 4MB, 6MB,
8MB, 10MB, 12MB, 16MB, 18MB, 20MB, 24MB,
32MB, 34MB, 36MB, 40MB, 48MB, 64MB, 66MB,
68MB, 72MB, 80MB, 96MB or 128MB of onboard
memory.
To install the SIM modules, first populate Bank 0 and
then Bank 1. Failure to do so will cause the system
board to work improperly.
2-3 uInstallation Overview

G586OPB
The following table summarizes the bank locations and
modules needed for the corresponding memory sizes.
Each bank consists of 2 SIMM sockets.
MemorySizeBank0Bank1
2MB256Kx36-
4MB256Kx36256Kx36
4MB512Kx36-
6MB256Kx36512Kx36
8MB512Kx36512Kx36
8MB1Mx36-
10MB256Kx361Mx36
12MB512Kx361Mx36
16MB1Mx361Mx36
16MB2Mx36-
18MB256Kx362Mx36
20MB512Kx362Mx36
24MB1Mx362Mx36
32MB2Mx362Mx36
32MB4Mx36-
34MB256Kx364Mx36
36MB512Kx364Mx36
40MB1Mx364Mx36
48MB2Mx364Mx36
64MB4Mx364Mx36
64MB8Mx36-
66MB256Kx368Mx36
68MB512Kx368Mx36
72MB1Mx368Mx36
80MB2Mx368Mx36
96MB4Mx368Mx36
128MB8Mx368Mx36
Installation Overview u2-4

PCI/ISASystemBoard
2-5 uInstallation Overview
Pin 1 of the SIMM socket
Locations of the SIM Sockets on the System Board
Socket 7
(ZIF Socket)
SM1
SM2
SM3
NS
PC87332SM4
OPTi
82558
OPTi
82557
OPTi
82556
Bank 0
Bank 1
VRM

G586OPB
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 HSIM module above the socket with the
“notch” in the module aligned with the “key” on the
socket.
2. Seat the module at a 45oangle into the bank. Make
sure it is completely seated. Tilt the module upright
until it locks in place in the socket.
InstallationOverview u 2-6

PCI/ISASystemBoard
Board Configuration
The G586OPB is designed with jumpers and connectors
onboard. Make sure that the jumpers are set correctly
before installing the system board into your system unit.
2-7 uInstallation Overview
Locations of Jumpers and Connectors
on the G586OPB System Board
PL2
NS
PC87332
OPTi
82556
JP14
JP15
JP16
JP17
JP18
J2
J4
J3
JP1
JP2
JP22
J22
J31J30J52
J13J21
J24
J25J23
J34
J51
J12
J50
J11
J18
J16
J7
J6
OPTi
82557
OPTi
82558
J17
J19
JP9
JP13
JP11
JP6
JP8JP7
PL1JP3JP5
JP4
PL2
J10
J9
J20
Socket 7
(ZIF Socket)
J8

G586OPB
Jumper Settings
Jumper Settings for Flash EPROM, PS/2 Mouse and Display Type
InstallationOverview u 2-8
Locations of Jumpers J16, J17 and J18
on the G586OPB System Board
NS
PC87332
OPTi
82556
Socket 7
(ZIF Socket)
J18
J16
OPTi
82557
OPTi
82558
J17Flash EPROM

PCI/ISASystemBoard
Jumper J16
Flash EPROM Voltage
The G586OPB supports 5 Volt and 12 Volt Flash
EPROM. Set Jumper J16 according to the voltage of the
Flash EPROM installed on the system board. Refer to
page 2-8 for the locaton of the Flash EPROM.
2-9 uInstallation Overview
123
1-2On:5VFlash
EPROM
(Default)
Jumper J17
PS/2 Mouse
The G586OPB package includes a card-edge bracket
with serial and mouse port. The PS/2 mouse port uses
IRQ12. If you set Jumper J17 to IRQ12 enable, make
sure you connect the PS/2 mouse port to Connector JP9.
When IRQ12 is disabled and a PS/2 mouse is not used,
the IRQ12 interrupt is available for other devices.
123
2-3On:12VFlash
EPROM
On:IRQ12Enabled
(Default)Off:IRQ12Disabled

G586OPB
Jumper J18
Display Type Select
Jumper J18 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.
InstallationOverview u 2-10
123 1 23
1-2On:Mono2-3On:Color
(Default)

PCI/ISASystemBoard
Jumper Settings for Parallel Port
2-11 uInstallation Overview
Locations of Jumpers JP11 and JP13
on the G586OPB System Board
NS
PC87332
OPTi
82556
OPTi
82557
OPTi
82558
JP13
JP11
PCI1
PCI2
PCI3
PCI4