DFI 586STC User Manual

- 32770131 -

586STC

Rev. A+
System Board
User ’s Manual

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.

The manufacturer 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. 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 per­son or entity of such changes. Further, the manufacturer assumes no
responsibility for any errors that may appear in this document.

All product names referred to this manual are properties of their respec­tive holders.

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 ................................................................................14

Cache Memory..................................................................................16

Jumper Settings for CMOS Clear .....................................................17

CPU Installation ................................................................................17

Jumper Settings for Intel Processors .................................. 19

Jumper Settings for Cyrix/IBM 6x86 &

6x86L Processors................................................................20

Jumper Settings for AMD-K5 Processors .................................. 21

Installing Upgrade CPUs............................................................22

Installing A Fan/Heatsink ...........................................................24

Built-in Ports ...................................................................................... 26

Serial Ports.................................................................................26

PS/2 Mouse Port ........................................................................26

Parallel Port ................................................................................27

Floppy Disk Drive Controller ......................................................27

IDE Hard Disk Interface .............................................................28

Installing Expansion Cards ............................................................... 30

Chapter 3: Software Installation...........................................................31

Award BIOS CMOS Setup Utility ......................................................31

Standard CMOS Setup ..............................................................32

BIOS Features Setup .................................................................36

Chipset Features Setup .............................................................40

Power Management Setup.........................................................41

PNP/PCI Configuration Setup ....................................................43

Load Fail-Safe Settings ..............................................................45

Load Optimal Settings................................................................46

Integrated Peripherals ................................................................46

4

Supervisor Password ................................................................. 48

User Password ...........................................................................49

IDE HDD Auto Detection ............................................................49

HDD Low Level Format ..............................................................52

Save & Exit Setup ......................................................................52

Exit Without Saving ....................................................................53

Desktop Management Interface (DMI) .............................................53

System Error Report .........................................................................56

IDE Device Drivers............................................................................58

Chapter 4: Troubleshooting Checklist .................................................59

Appendix A: Types of Modules.............................................................63

Appendix B: Memory and I/O Maps.....................................................64

Appendix C: Connectors.......................................................................6 6

5

The 586STC, equipped with a 321-pin Zero Insertion Force (ZIF) CPU
socket, is a Pentium processor-class system board supporting Intel
Pentium processors running at 75MHz, 90MHz, 100MHz, 120MHz,
133MHz, 150MHz, 166MHz and 200MHz frequencies. The 586STC also
supports Intel Pentium processor with MMX technology - 166/
200MHz, future Intel Pentium OverDrive processors, Cyrix/IBM



6x86 & 6x86L P133+/P150+/P166+/P200+, and AMD-K5 PR75/
PR90/PR100/PR120/PR133.

The 586STC supports 8MB to 256MB of system memory using EDO or
fast page mode DRAM. It is equipped with four 72-pin SIMM sockets
which allow you to install x32 SIMMs. The system board also supports
256KB or 512KB pipeline/linear burst SRAM.

The 586STC 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 586STC is equipped with two NS16C550A-compatible serial ports,
a SPP/ECP/EPP parallel port, a shrouded floppy disk header, and two
shrouded PCI IDE headers 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 or AT keyboard connec­tor, and one IrDA connector for wireless connectivity between your com­puter and peripheral devices.

Chapter 1

Introduction

6

Features and Specifications

PROCESSOR

 Intel Pentium processor with MMX technology - 166/200MHz
 Intel Pentium



75/90/100/120/133/150/166/200MHz

 Future Intel Pentium



OverDrive



processors

 Cyrix/IBM 6x86 & 6x86L P133+/P150+/P166+/P200+

- Linear burst mode supported

 AMD-K5 PR75/PR90/PR100/PR120/PR133

CHIPSET

 SiS 5571 (Trinity) single chip solution

CACHE MEMORY

 256KB (32Kx32 x2) or 512KB (64Kx32 x2) pipeline/linear burst,

direct map write-back cache installed on the system board

SYSTEM MEMORY

• 8MB to 256MB memory

 Four 72-pin SIMM sockets
 Uses EDO or fast page mode x32 DRAM, 60ns or 70ns, 5V

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 1.2 compliant
 External power management switch supported

7

PCI IDE INTERFACE

 PIO Modes 3 and 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

 ITE Giga 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
 Two USB connectors supported in future revision

CPU SOCKET

 321-pin ZIF socket (Intel Socket 7)
 Onboard Switching Power Supply supports up to 10 ampere CPU

power consumption: less heat and more efficiency

CONNECTORS

 1 connector for IrDA interface
 2 serial ports
 1 parallel port
 2 IDE connectors
 1 floppy connector
 1 PS/2 mouse port
 1 PS/2 or AT keyboard connector

EXPANSION SLOTS

 3 dedicated PCI slots
 3 dedicated 16-bit ISA slots
 1 shared PCI/ISA slot

PCB

 4 layers, Baby AT
 28cm (11.02") x 22cm (8.66")

8

Package Checklist

The 586STC package contains the following items:

 The 586STC system board
 The 586STC users manual
 Serial, mouse and printer port cables

Option 1:

- One card-edge bracket with a 9-pin and 25-pin serial port cables

- One card-edge bracket with a 25-pin printer port cable and a PS/2
mouse port cable

Option 2:

- One card-edge bracket with two 9-pin serial port cables and a
PS/2 mouse port cable

- One 25-pin printer port cable for chassis mounting

 One 40-pin IDE hard disk cable
 One 34-pin floppy disk drive cable
 One IDE driver diskette
 Five spare jumpers

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 586STC 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 information on pages 14 and 15 for the number and type of memory
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, 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 ideal location, unpack the 586STC system board
carefully.

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 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.

Installing the System Board

If you are installing the 586STC system board, the following outlines the
basic installation steps. 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

• One needle-nosed pliers

• One small nutdriver

1. Unlock your system unit. Turn off the power and disconnect all
power cords and cables.

11

2. Remove the system unit cover. Refer to the manufacturers instruc­tions if necessary.

3. Detach all connectors from the old system board and remove ex­pansion cards seated in any expansion slots.

4. Loosen the screws holding the original system board and remove
the board from the system. Save the screws.

5. Remove the 586STC 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 9 and 10 for proper handling
techniques.

6. Insert the memory modules into the memory banks on the 586STC.
The quantity and location of the memory modules depends on the
memory configuration and type of modules you intend to use.

7. Install the CPU. Be sure pin 1 of the CPU is aligned with pin 1 of
the socket.

8. Set the corresponding jumpers.

9. Install the prepared 586STC system board into the case and re­place the screws.

10. Reinstall all cards and connectors and replace the system unit

cover. Reconnect all power cords and cables.

12

Board Layout

13

J1 - Parallel printer port
J2 - PS/2 keyboard port
J3 - AT keyboard connector
J4 - Floppy disk controller connector
J5 - Secondary IDE hard disk drive connector
J6 - Primary IDE hard disk drive connector
J7 - PS/2 mouse connector
J8 - COM 1 serial port
J9 - IrDA connector
J10 - COM 2 serial port
J13 - Turbo LED connector
J15 - Green LED connector
J16 - Green switch connector
J17 - HD LED connector
J19 - Reset switch connector
J20 - Speaker connector
J21 - Keylock & Power LED connector
PL1 - Power connector

Connectors - refer to pages 66-68

Expansion slots

PCI Slots 1, 2, 3, 4 - 32-bit PCI slots
ISA Slots 1, 2, 3, 4 - 16-bit ISA slots

page 30
page 30

Refer to

Sockets

SM1 to SM4 - SIMM sockets
U14 - ZIF socket

pages 14-15
pages 22-24

Refer to

Jumpers

JP1, JP3, JP5-JP7, JP10-JP15
Intel, Cyrix/IBM and AMD processors

JP9 - CMOS Clear

pages 19-21

page 17

Refer to

14

System Memory

The SIMM (Single In-line Memory Module) sockets are divided into two
banks on the system board, Bank 0 and Bank 1. Each bank consists of
2 SIMM sockets.

You will need either 2 or 4 pieces of SIM modules, depending on the
amount of memory you intend to install. Make sure you insert the same
type of SIMMs in one bank. You can install SIMMs in either of the
banks (Bank 0 or Bank 1) but you must populate one bank first before
going to the next bank.

The 586STC system board can support 8MB to 256MB of memory us­ing 1MBx32, 2MBx32, 4MBx32, 8MBx32, or 16MBx32 72-pin SIMMs.
The table below shows the supported SIM modules and their corre­sponding memory sizes.

The table below summarizes the bank locations and modules needed
for the corresponding memory sizes.

SIMM1

1MBx32



2MBx32


1MBx32
1MBx32
2MBx32

Memory Size

8MB

8MB
16MB
16MB
16MB
24MB
24MB

Bank 0

SIMM2

1MBx32



2MBx32


1MBx32
1MBx32
2MBx32

SIMM4



1MBx32


2MBx32
1MBx32
2MBx32
1MBx32

Bank 1

SIMM3



1MBx32


2MBx32
1MBx32
2MBx32
1MBx32

SIMMs

1MBx32
2MBx32
4MBx32
8MBx32
16MBx32

Memory Size

4MB
8MB
16MB
32MB
64MB

15

SIMM3


4MBx32
2MBx32
4MBx32
1MBx32
4MBx32
2MBx32


8MBx32
4MBx32
8MBx32
1MBx32
8MBx32
2MBx32
8MBx32
4MBx32



16MBx32

8MBx32

16MBx32

1MBx32

16MBx32

2MBx32

16MBx32

4MBx32

16MBx32

8MBx32

16MBx32

SIMM2

4MBx32


2MBx32
1MBx32
4MBx32
2MBx32
4MBx32
8MBx32


4MBx32
1MBx32
8MBx32
2MBx32
8MBx32
4MBx32
8MBx32

16MBx32


8MBx32
1MBx32

16MBx32

2MBx32

16MBx32

4MBx32

16MBx32

8MBx32

16MBx32
16MBx32

Memory Size

32MB
32MB
32MB
40MB
40MB
48MB
48MB
64MB
64MB
64MB
72MB
72MB
80MB
80MB
96MB

96MB
128MB
128MB
128MB
136MB
136MB
144MB
144MB
160MB
160MB
192MB
192MB
256MB

Bank 0

SIMM1

4MBx32


2MBx32
1MBx32
4MBx32
2MBx32
4MBx32
8MBx32


4MBx32
1MBx32
8MBx32
2MBx32
8MBx32
4MBx32
8MBx32

16MBx32


8MBx32
1MBx32

16MBx32

2MBx32

16MBx32

4MBx32

16MBx32

8MBx32

16MBx32
16MBx32

SIMM4


4MBx32
2MBx32
4MBx32
1MBx32
4MBx32
2MBx32


8MBx32
4MBx32
8MBx32
1MBx32
8MBx32
2MBx32
8MBx32
4MBx32



16MBx32

8MBx32

16MBx32

1MBx32

16MBx32

2MBx32

16MBx32

4MBx32

16MBx32

8MBx32

16MBx32

Bank 1

16

Installing a SIM Module

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.

Pin 1

notch

key

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 45° angle into the bank. Make sure it is com­pletely seated. Tilt the module upright until it locks in place in the
socket.

Cache Memory

The 586STC system board supports 256KB (32Kx32 x2) or 512KB
(64Kx32 x2) pipeline/linear burst, direct map write-back cache installed
at locations U3 and U4 of the system board. Regardless of the amount
of cache memory installed, one SRAM is mounted on location U5 for
tag SRAM to store the cacheable addresses. Refer to page 12 for the
locations of the SRAMs and tag SRAM.

Cacheable Memory

256KB
512KB

64MB

128MB

Cache Size Cacheable Range

17

CPU Installation

The 586STC allows for easy installation of CPUs. Make sure all jumpers are
set correctly before applying power or you may damage the CPU or system
board. Use a needle-nosed plier to move the jumpers if necessary.

Jumpers JP1, JP10, JP11, JP12 and JP13 are used to set the external bus
clock of your processor. Refer to the following pages for the external bus
clock that corresponds to your processor and set these jumpers accordingly.
The clock generator will determine the external bus clock that must be sent
to the processor through these settings.

Jumpers JP6 and JP7 are used to set the frequency ratio of your processor.
Refer to the following pages for the frequency ratio that corresponds to your
processor and set these jumpers accordingly.

Jumper Settings for CMOS Clear

Jumper JP9

CMOS Clear 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, power off your system and set JP9 pins 2 and 3 to
On. Power on your system. After you boot up an operating system, turn
your system off again. Set JP9 back to its default setting, pins 1 and 2
On.

JP9

1-2 On: Normal

(default)

123

2-3 On: CMOS Clear

123

18

After setting these jumpers, an Intel Pentium processor will multiply the
external bus clock by the frequency ratio to become the internal clock
speed. Internal clock speed is the commonly used speed of Intel processors
in the market and is the actual operating clock of the processor (external
bus clock x frequency ratio = internal clock speed).

Cyrix and AMD processors use the P-rating system which is the overall
CPU performance rating. Under the system, these processors slightly out­perform Intels Pentium processors.

Jumper JP5 is used to set the cache burst mode of your processor. Refer to
the following pages and set this jumper accordingly.

Jumpers JP3, JP14 and JP15 are used to set the voltage of your processor.
Make sure these jumpers are set correctly, otherwise your system will hang.

The table below shows the External System Bus Clock of the CPUs sup­ported by the system board and their corresponding PCI Clock and ISA Bus
Clock.

External System Bus Clock

50MHz
55MHz
60MHz
66MHz
75MHz

PCI CLK

25MHz

27.5MHz
30MHz
33MHz
32MHz

ISA Bus CLK

8.333MHz

9.1666MHz

7.5MHz

8.25MHz
8MHz

19

Jumper Settings for Intelâ Processors

Intel® Processors

75/90/100MHz

120/133MHz

150/166MHz

200MHz

Freq. Ratio

1.5x

2x

2.5x

3x

JP6

1-2 On

1-2 On

2-3 On

2-3 On

JP7

1-2 On

2-3 On

2-3 On

1-2 On

Intel® Processors

75MHz

90/120/150MHz

100/133/166/200MHz

JP5

1

2

JP5

Off

On

Processors

Intelâ/AMD-K5

Cyrixâ/IBM

â

Warning:

1. JP5 is for Cache Burst Mode Select. When using
an Intel processor, you have to set JP5 to Off for
interleave burst.

2. The default setting of JP3, JP14 and JP15 is

3.3V. If the voltage of your processor is not 3.3V,
make sure you set JP3, JP14 and JP15 according
to the voltage of your processor, otherwise, your
system will hang.

JP7
JP6

1

2

3

JP3

2

1

7

8

JP14

1

2

7

8

1

2

9

JP15

10

* Default

#

Pentium processor with MMX

technology - 166/200MHz

Voltage

3.3V* (VR/STD)

3.5V (VRE)

2.9V

2.8V

#

2.7V

JP1

2

1

78

JP12

JP11
JP13

JP10

1

2

3

Ext. System

Bus CLK

50MHz

60MHz

66MHz

JP1

3-4 On, 7-8 On

3-4 On, 5-6 On

5 -6 On

JP10

1-2 On

1-2 On

1-2 On

JP11

2-3 On

1-2 On

2-3 On

JP12

2-3 On

2-3 On

1-2 On

JP13

2-3 On

2-3 On

2-3 On

JP15

3-4 On

1-2 On

JP3

All Off

All Off

JP14

5-6 On
7-8 On

5-6 On
7-8 On

1-2 On
3-4 On
5-6 On

1-2 On
3-4 On
5-6 On

All Off

1-2 On
3-4 On
5-6 On

All Off

All Off

5-6 On

7-8 On

9-10 On

20

Jumper Settings for Cyrixâ/IBMâ 6x86 & 6x86L Processors

Warning:

1. JP5 is for Cache Burst Mode Select. When
using a Cyrix/IBM processor, you have to set
JP5 to On for linear burst.

2. The default setting of JP3, JP14 and JP15 is

3.3V. If the voltage of your processor is not

3.3V, make sure you set JP3, JP14 and JP15
according to the voltage of your processor,
otherwise, your system will hang.

JP1

2

1

7

8

JP12

JP11
JP13

JP10

1

2

3

P-Rating

P133+

P150+

P166+

P200+*

Ext. Sysyem

Bus CLK

55MHz

60MHz

66MHz

75MHz

JP1

1-2 On

3-4 On, 5-6 On

5-6 On

3-4 On

JP10

1-2 On

1-2 On

1-2 On

2-3 On

JP11

2-3 On

1-2 On

2-3 On

1-2 On

JP12

2-3 On

2-3 On

1-2 On

2-3 On

JP13

1-2 On

2-3 On

2-3 On

1-2 On

P-Rating

P133+/P150+/P166+/P200+

Processors

Intelâ/AMD-K5

Cyrixâ/IBM

â

1

JP5

2

JP5

Off

On

JP15

3-4 On

1-2 On

* Default

Voltage

3.3V* (VR/STD)

3.5V (VRE)

2.9V

2.8V (6x86L)

2.7V

JP3

All Off

All Off

JP14

5-6 On
7-8 On

5-6 On
7-8 On

1-2 On
3-4 On
5-6 On

1-2 On
3-4 On
5-6 On

All Off

1-2 On
3-4 On
5-6 On

All Off

All Off

5-6 On

7-8 On

9-10 On

JP3

2

1

7

8

JP14

1

2

7

8

1

2

9

JP15

10

Freq. Ratio

2x*

JP7

2-3 On

JP6

1-2 On

JP7
JP6

1

2

3

21

Warning:

1. JP5 is for Cache Burst Mode Select. When
using an AMD processor, you have to set JP5
to Off for interleave burst.

2. The default setting of JP3, JP14 and JP15
is 3.3V. If the voltage of your processor is not

3.3V, make sure you set JP3, JP14 and JP15
according to the voltage of your processor,
otherwise, your system will hang.

Jumper Settings for AMD-K5 Processors

1

JP5

2

JP5

Off

On

Processors

Intelâ/AMD-K5

Cyrixâ/IBM

â

Freq. Ratio

1.5x

JP6

1-2 On

JP7

1-2 On

P-Rating

PR75

PR90

PR100

PR120

PR133

Ext. System

Bus CLK

50MHz

60MHz

66MHz

60MHz

66MHz

JP1

2

1

7

8

JP12

JP11
JP13

JP10

1

2

3

P-Rating

PR75/PR90/PR100/PR120/PR133

JP1

3-4 On, 7-8 On

3-4 On, 5-6 On

5-6 On

3-4 On, 5-6 On

5-6 On

JP10

1-2 On

1-2 On

1-2 On

1-2 On

1-2 On

JP11

2-3 On

1-2 On

2-3 On

1-2 On

2-3 On

JP12

2-3 On

2-3 On

1-2 On

2-3 On

1-2 On

JP13

2-3 On

2-3 On

2-3 On

2-3 On

2-3 On

JP7
JP6

1

2

3

JP3

21

7

8

JP14

1

2

7

8

1

2

9

JP15

10

* Default

Voltage

3.3V* (VR/STD)

3.5V (VRE)

2.9V

2.8V

2.7V

JP15

3-4 On

1-2 On

JP3

All Off

All Off

JP14

5-6 On
7-8 On

5-6 On
7-8 On

1-2 On
3-4 On
5-6 On

1-2 On
3-4 On
5-6 On

All Off

1-2 On
3-4 On
5-6 On

All Off

All Off

5-6 On

7-8 On

9-10 On

22

Installing Upgrade CPUs

The 586STC is equipped with a 321-pin Zero Insertion Force (ZIF)
socket at location U14 of the system board. Refer to page 12 for the
location of the ZIF socket. This socket is designed for easy removal of
an old CPU and easy insertion of an upgrade CPU. The ZIF socket
allows you to carefully place the new CPU into its position. If you need
to apply excessive force to insert the CPU, you are not installing the
CPU correctly.

Warning:

Open the socket only if you are actually installing a CPU. The warranty
on the original CPU will be voided if the S/N seal is broken. Before
proceeding with the upgrade, take note of the following. The micropro­cessor and heatsink 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 heatsink cool for 20 minutes.

The 321-pin ZIF socket consists of five rows of pin holes on each side.
To prevent improper CPU installation, the ZIF socket has a Plug/Keying
mechanism. Several holes in the socket are plugged so that the CPU
will go in only one way. If you cannot easily insert the CPU, verify that
pin 1 of the CPU is aligned with pin 1 of the socket.

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 it down, slightly pull it out to the side, then raise it
as far as it will go. It may be necessary to initially apply a small

23

Lifting the Handle

2. Once the lever is completely up, remove the old CPU carefully by
lifting it straight out of the socket. You are now ready to insert the
new CPU.

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 is not
easily inserted, verify whether or not pin 1 of the CPU is aligned
with pin 1 of the socket. Applying too much pressure can damage
the CPU or the socket.

amount of sideways force to free the handle from its retaining tab.
Once clear of the tab, the handle will open relatively easily. The
top plate will slide back. Do not use screwdrivers or other tools to
open the socket, or you may damage the system or socket.

Handle

Pin 1

24

4. Push the handle down until the handle locks into place. The top
plate will slide forward. You will feel some resistance as 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

Installing A Fan/Heatsink

Choose a fan/heatsink suitable for the processor installed on your sys­tem board. Position the fan/heatsink on the CPU such that the air from
the side of the fan/heatsink will flow across the heat regulators on the
system board. See the figure below.

Clearance Requirements

Your CPU comes with a heatsink mounted on top. To maintain proper
airflow once the upgrade is installed on the system board, the CPU and
heatsink require certain space clearances.

25

The clearance above the CPUs fan/heatsink must be at least 0.4
inches. The clearance on at least 3 of 4 sides of the processor and
heatsink must be at least 0.2 inches. All cables (for floppy drive, hard
drive, CD-ROM, etc.) must berouted clear of the CPU and its airspace.

Fan Exhaust

The CPU must be kept cool by using a fan with heatsink. The tempera­ture of the air entering the fan/heatsink cannot exceed 45oC (113oF).
The ambient or room temperature must be below 37oC (99oF).

26

Built-in Ports

The 586STC system board is equipped with two serial ports, one paral­lel printer port, one shrouded floppy disk header, two shrouded IDE
hard disk headers and one PS/2 mouse port. Refer to page 12 for the
locations of the built-in connectors and pin 1 of those connectors.

Serial Ports

The 586STC is equipped with two serial ports at locations J10 (COM 2)
and J8 (COM 1) of the system board. These built-in serial ports are RS­232C 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:

Connecting the Serial Ports

Two serial port cables are provided with the system board. Connect a
serial port cable to connector J8 on the system board for COM 1 pri­mary serial port. Connect the other serial port cable to connector J10
for COM 2 secondary serial port. Make sure the colored stripes on the
ribbon cables are aligned with pins 1 of connectors J8 and J10. Mount
the card-edge bracket to the system chassis.

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 is mounted on a card-edge bracket,
to connector J7. Make sure the red wire on the PS/2 mouse connector
is aligned with pin 1 of connector J7.

Port Configuration

Serial Port 1
Serial Port 2

COM1

3F8h*
3F8h

COM2

2F8h
2F8h*

COM3

3E8h
3E8h

COM4

2E8h
2E8h

* Default

27

Parallel Port

The 586STC system board has a standard printer port (J1) for interfac­ing your PC to a parallel printer. It supports SPP, ECP and EPP modes.
You can set the ports mode in the Integrated Peripherals setup of the
Award BIOS (Refer to Chapter 3).

Floppy Disk Drive Controller

The 586STC system board is equipped with a shrouded floppy disk
header that supports two standard floppy disk drives. You can install
any 360KB, 720KB, 1.2MB, 1.44MB, or 2.88MB floppy disk drives. To
prevent improper floppy cable installation, the shrouded floppy disk
header has a keying mechanism. The 34-pin connector on the floppy
cable can be placed into the header only if pin 1 of the connector is
aligned with pin 1 of the header.

Connecting the Floppy Disk Cable

1. Install the 34-pin floppy disk cable header into the shrouded floppy
disk header (J4) on the system board. The colored edge of the
ribbon should be aligned with pin 1 of connector J4.

Setting

SPP
(Standard Parallel Port)

ECP
(Extended Capabilities Port)

EPP
(Enhanced Parallel Port)

Function

Allows normal speed operation but in one
direction only.

Allows parallel port to operate in bidirectional
mode and at a speed higher than the maxi­mum data transfer rate.

Allows bidirectional parallel port operation at
maximum speed.

I/O Address

3BC-3BE Hex
378-37A Hex (default)
278-27A Hex

The parallel port on your system board can be set to any of the following
system I/O addresses:

28

2. Install the other 34-pin header connector(s) into the disk drive(s).
Align the colored edge of the daisy chained ribbon cable with pin 1
of the drive edge connector(s). The end-most connector should be
attached to the drive you want to designate as Drive A.

IDE Hard Disk Interface

The 586STC system board is equipped with two PCI IDE shrouded
headers that will interface four Enhanced IDE (Integrated Drive Elec­tronics) hard disk drives.

Note:

Only Enhanced IDE hard drives or ATAPI CD-ROMs 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.

Pin 1

Header

Note:

An IDE cable with a standard 40-pin connector (without the keying
mechanism) 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.

29

Connecting the Hard Disk Cable

1. If you are connecting two hard drives, install the 40-pin connector
of the IDE cable into the primary IDE shrouded header (connector
J6). 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 (connector J5).

2. Install the other 40-pin header connector(s) into the device with the
colored edge of the ribbon cable aligned with 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.

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 instructions provided by the drive manu­facturer for setting the jumpers and/or switches on the drives.

We recommend that you use Enhanced IDE hard drives from the same
manufacturer. In a few cases, drives from two different manufacturers
will not function properly when used together. The problem lies in the
hard drives, not the 586STC 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. You may also
use the IDE HDD Auto Detection function which will allow the BIOS to
auto detect your hard drive type. Refer to the IDE HDD Auto Detection
section for details.

30

Warning:

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.

Using 586STC with CD-ROM Drives

If you encountered problems while using an ATAPI CD-ROM drive that
is set in Master mode, please set the CD-ROM drive to Slave mode.
Some ATAPI CD-ROMs may not be recognized and cannot be used if
incorrectly set in Master mode.

Installing Expansion Cards

The 586STC system board is equipped with 3 dedicated PCI slots, 3
dedicated 16-bit ISA slots and 1 shared PCI/ISA slot. All PCI slots are
bus masters. Refer to page 12 for the locations of the expansion slots.

31

Chapter 3

Software Installation

After you power up your system, the BIOS message appears on your
screen and the memory count begins.

After the memory test, the following message will appear on the screen:

Press DEL to enter setup

If the message disappears before you respond, restart your system or
press the Reset button located on the front panel of your computer.
You may also restart the system by pressing the <Ctrl> <Alt> and
<Del> keys simultaneously.

If you have set a password and selected System in the Security Op­tion of the BIOS Features Setup menu, you will be prompted for the
password every time the system is rebooted or any time you try to enter
Setup. Type in the correct password and press <Enter>.

If you selected Setup in the Security Option, you will be prompted for
the password only when you try to enter Setup. Refer to the BIOS
Features Setup section for more information.

Award BIOS CMOS Setup Utility

While booting up, press <Ctrl> <Alt> <Esc> simultaneously or <Del> to
enter the Setup utility. A screen similar to the one on the next page will
appear.

32

Use the arrow keys to highlight the option you want and press <Enter>.
The following describes each of these options.

Note:

The settings on the BIOS setup screens on the following pages are for
reference only. Some of the settings will vary according to your
system’s configuration and should not be referred to as the standard
default setting.

Standard CMOS Setup

Use the arrow keys to highlight Standard CMOS Setup and press
<Enter>. A screen similar to the one below will appear.

ROM PCI/ISA BIOS(2A5IHD4A)

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP
BIOS FEATURES SETUP
CHIPSET FEATURES SETUP
POWER MANAGEMENT SETUP
PNP/PCI CONFIGURATION
LOAD FAIL-SAFE SETTINGS
LOAD OPTIMAL SETTINGS

INTEGRATED PERIPHERALS
SUPERVISOR PASSWORD
USER PASSWORD
IDE HDD AUTO DETECTION
HDD LOW LEVEL FORMAT
SAVE & EXIT SETUP
EXIT WITHOUT SAVING

ESC
F10

:Quit
:Save & Exit Setup

↑↓→←

(Shift) F2

:Select Item
:Change Color

Time, Date, Hard Disk Type...

Base Memory : 640K

Extended Memory : 31744K

Other Memory : 384K

Total Memory : 32768K

MODE

Auto
Auto
Auto
Auto

ROM PCI/ISA BIOS(2A5IHD4A)

STANDARD CMOS SETUP

AWARD SOFTWARE, INC.

Date (mm:dd:yy) : Sun, Sep 8 1996
Time (hh:mm:ss) : 9 : 18 : 582

HARD DISKS
Primary Master
Primary Slave
Secondary Master
Secondary Slave

TYPE
:Auto
:Auto
:Auto
:Auto

SIZE

0
0
0
0

CYLS

0
0
0
0

HEAD

0
0
0
0

PRECOMP

0
0
0
0

LANDZ

0
0
0
0

SECTOR

0
0
0
0

DriveA :1.44M, 3.5in.
DriveB :None

Video :EGA/VGA
Halt on :All Errors

PU/PD/+/- : Modify

↑↓→←

:Select Item
:Change

(Shift)F2

ESCF1:Quit

:Help

33

Time

The time format is <hour>, <minute>, <second>. The time is based on
the 24-hour military-time clock. For example, 1 p.m. is 13:00:00.

Primary Master, Primary Slave, Secondary Master and Secondary
Slave

These categories allow you to enter the appropriate specifications for
the type of hard disk drive(s) installed in your system. There are 45
predefined types and 4 user definable types for IDE hard drives. Type 1
to Type 45 are predefined. Type User is user-definable.

Press <PgUp> or <PgDn> to select a numbered hard disk type or type
the number and press <Enter>. The hard disk will not work properly if
you enter improper information for this category. You can use Type
User to define your own drive type manually.

If you select Type User, you will need to know the information listed
below. Enter the information and press <Enter>. This information should
be included in the documentation from your hard disk vendor or the
system manufacturer.

Day
Month
Date
Year

Displays a day, from Sunday to Saturday
Displays the month, from January to December
Displays the date, from 1 to 31
Displays the year, from 1900 to 2099

Hour
Minute
Second

Displays hours from 00 to 23
Displays minutes from 00 to 59
Displays seconds from 00 to 59

Date

The date format is <day>, <month>, <date>, <year>.

34

Note:

Choosing an incorrect type might cause your system to format the floppy
disk improperly, and you will not be able to access your data.

If the controller of the HDD interface is ESDI, you must select Type 1.

If the controller of the HDD interface is SCSI, you must select None.

If you select Type Auto, the BIOS will auto-detect the HDD & CD-ROM
drive at the POST stage and show IDE for the HDD & CD-ROM drive.

If a hard disk has not been installed, select None and press <Enter>.

Drive A and Drive B

These categories identify the types of floppy disk drives installed. The
following are the options for drives A and B.

Type
Cyls
Heads
Precomp
Landzone
Sectors
Mode

Drive type
Number of cylinders
Number of heads
Write precomp
Landing zone
Number of sectors
Mode type

None
360K, 5.25 in.

1.2M, 5.25 in.
720K, 3.5 in.

1.44M, 3.5 in.

2.88M, 3.5 in.

No floppy drive is installed
5-1/4 inch PC-type standard drive; 360 kilobyte capacity
5-1/4 inch AT-type high-density drive; 1.2 megabyte capacity
3-1/2 inch double-sided drive; 720 kilobyte capacity
3-1/2 inch double-sided drive; 1.44 megabyte capacity
3-1/2 inch double-sided drive; 2.88 megabyte capacity

35

Video

This category selects the type of video adapter used for the primary
system monitor. Although secondary monitors are supported, you do not
have to select the type in Setup. The default setting is EGA/VGA (BIOS
default, Setup default).

Memory

The base memory size, extended memory size and the other memory
size cannot be altered; your computer automatically detects and dis­plays them.

Halt On

This category determines whether the system will stop if an error is de­tected during power up. The default setting is All Errors (Fail-Safe de­fault, Optimal default).

EGA/VGA

CGA 40
CGA 80
Mono

Enhanced Graphics Adapter/Video Graphics Array. For EGA,
VGA, SVGA and PGA monitor adapters.

Color Graphics Adapter. Power up in 40-column mode.
Color Graphics Adapter. Power up in 80-column mode.
Monochrome adapter. Includes high resolution monochrome

adapters.

No Errors
All Errors

All, But
Keyboard

All, But
Diskette

All, But
Disk/Key

The system boot will not stop for any errors detected.
The system boot will stop whenever the BIOS detects a non-

fatal error.
The system boot will not stop for a keyboard error; it will stop

for all other errors.
The system boot will not stop for a disk error; it will stop for

all other errors.
The system boot will not stop for a disk or keyboard error; it

will stop for all other errors.

36

BIOS Features Setup

The BIOS Features Setup allows you to configure your system for basic
operation. Some entries are defaults required by the system board,
while others, if enabled, will improve the performance of your system or
let you set some features according to your preference.

Virus Warning

This category protects the boot sector and partition table of your hard
disk drive. When this item is enabled, the Award BIOS will monitor the
boot sector and partition table of the hard disk drive. If an attempt is
made to write to the boot sector or partition table of the hard disk drive,
the BIOS will halt the system and the following error message will ap­pear.

Base
Memory

Extended
Memory

Other
Memory

This refers to the amount of base or conventional memory
installed on the system board.

This is the amount of memory located above 1MB in the
memory address map of the CPU.

This memory size refers to the memory located in the ad­dress space between 640K and 1024K. DOS uses this
area to load device drivers to keep base memory free for
application programs. The most appropriate use of this
area is for Shadow RAM.

ROM PCI/ISA BIOS

BIOS FEATURES SETUP

AWARD SOFTWARE, INC.

Virus Warning
CPU Internal Cache
External Cache
Quick Power On Self Test
Boot Sequence
Swap Floppy Drive
Boot Up Floppy Seek
Boot Up NumLock Status
Typematic Rate Setting
Typematic Rate (Chars/Sec)
Typematic Delay (Msec)
Security Option
PCI/VGA Palette Snoop
OS Select For DRAM>64MB

: Disabled
: Enabled
: Enabled
: Enabled
: A, C
: Disabled
: Disabled
: On
: Disabled
: 6
: 250
: Setup
: Disabled
: Non-OS2

Video BIOS Shadow
C8000-CBFFF Shadow
CC000-CFFFF Shadow
D0000-D3FFF Shadow
D4000-D7FFF Shadow
D8000-DBFFF Shadow
DC000-DFFFF Shadow

: Enabled
: Disabled
: Disabled
: Disabled
: Disabled
: Disabled
: Disabled

ESC
F1
F5
F6
F7

:Quit
:Help
:Old Values
:Load Fail-Safe Settings
:Load Optimal Settings

↑↓→←

PU/PD/+/­(Shift) F2

:Select Item
:Modify
:Color

37

! WARNING !

Disk boot sector is to be modified

Type Y to accept write or N to abort write

Award Software, Inc.

After seeing this message, if necessary, you will be able to run an anti­virus program to locate and remove the problem before any damage is
done.

Many disk diagnostic programs which attempt to access the boot sector
table will cause the warning message to appear. If you are running such
a program, we recommend that you first disable this category. Also,
disable this category if you are installing or running certain operating
systems like Windows 95 or the operating system may not install nor work.

CPU Internal Cache and External Cache

These categories speed up memory access. The default value is en­abled. Enable the External Cache for better performance.

Quick Power On Self Test

This category speeds up Power On Self Test (POST) after you power
on your system. If it is set to Enabled, the BIOS will shorten or skip
some check items during POST.

BIOS issues a warning when any program or virus sends a
Disk Format command or attempts to write to the boot sector
of the hard disk drive.

No warning message will appear when the boot sector of the
hard disk drive is accessed.

Enabled

Disabled

Enables the internal/external cache.
Disables the internal/external cache.

Enabled
Disabled

Enables quick POST.
Normal POST.

Enabled
Disabled

38

Swap Floppy Drive

Boot Up Floppy Seek

During POST, the BIOS will determine if the floppy disk drive installed is
40 or 80 tracks. 360K type is 40 tracks while 760K, 1.2M, 1.44M and

2.88M are all 80 tracks.

Boot Sequence

This category determines which drive to search first for the disk operat­ing system (i.e. DOS). The default is A, C.

A, C

C, A

The system will first search for a floppy drive and then a
hard disk drive.

The system will first search for a hard disk drive and
then a floppy drive.

The system will first search for a hard disk drive, then a
CD-ROM drive, and then a floppy drive.

C, CDROM, A

CDROM, C, A

The system will first search for a CD-ROM drive, then a
hard disk drive and then a floppy drive.

C only

The system will search for a hard disk drive only.

When this option is enabled and the system is booting from
the floppy drive, the system will boot from drive B instead of
drive A.

When this option is disabled and the system is booting from
the floppy drive, the system will boot from drive A.

Enabled

Disabled

The BIOS will check whether the floppy disk drive installed is
40 or 80 tracks. Note that the BIOS cannot distinguish be­tween 720K, 1.2M, 1.44M or 2.88M drive types as they are all
80 tracks.

The BIOS will not search for the type of floppy disk drive by
track number. Note that there will not be any warning mes­sage if the drive installed is 360KB.

Enabled

Disabled

39

Boot Up NumLock Status

This allows you to determine the default state of the numeric keypad.
By default, the system boots up with NumLock on.

Security Option

This category allows you to limit access to your system and Setup or
just to Setup.

PCI/VGA Palette Snoop

This is used to select whether to allow MPEG ISA/VESA VGA cards to
work with PCI/VGA or not.

OS Select for DRAM > 64MB

This item allows you to access the memory that is over 64MB in OS/2.
The options are: Non-OS2 and OS2.

Video BIOS Shadow

Determines whether video BIOS will be copied to RAM. Video Shadow
will increase the video speed. Note that some graphics boards require
that this option be disabled.

The function of the numeric keypad is the number keys.
The function of the numeric keypad is the arrow keys.

On
Off

The system will not boot and access to Setup will be denied if
the correct password is not entered at the prompt.

The system will boot, but access to Setup will be denied if the
correct password is not entered at the prompt.

System

Setup

PCI/VGA working with MPEG ISA/VESA VGA cards.
PCI/VGA not working with MPEG ISA/VESA VGA cards.

Enabled
Disabled

40

C8000-CBFFF Shadow to DC000-DFFFF Shadow

These categories determine whether option ROMs will be copied to
RAM.

Chipset Features Setup

This section gives you instructions on how to configure the system
based on the specific features of the chipset. The chipset manages bus
speeds and access to system memory resources such as DRAM and
external cache. It also coordinates communications between the con­ventional ISA bus and the PCI bus. These items should not be altered
unless necessary. Depending on your add-in boards, you may not or
should not enable some of these features. The default settings have
been chosen because they provide optimum operating conditions for
your system.

Enabled
Disabled

Video shadow is enabled.
Video shadow is disabled.

Enabled
Disabled

Optional shadow is enabled.
Optional shadow is disabled.

ROM PCI/ISA BIOS(2A5IHD4A)

CHIPSET FEATURES SETUP

AWARD SOFTWARE, INC.

DRAM Loading
System BIOS Cacheable
Video BIOS Cacheable
Memory Hole at 15M-16M

: Normal
: Enabled
: Enabled
: Disabled

ESC
F1
F5
F6
F7

:Quit
:Help
:Old Values
:Load Fail-Safe Settings
:Load Optimal Settings

↑↓→←

PU/PD/+/­(Shift) F2

:Select Item
:Modify
:Color

41

Power Management Setup

Power Management Setup allows you to configure your system to most
effectively save energy.

Power Management

This category allows you to select the type (or degree) of power saving
by changing the length of idle time that elapses before each of the
following modes are activated: Doze Mode, Standby Mode, and Sus­pend Mode.

No power management. Disables the Doze, Standby and
Suspend modes.

Minimum power management. Doze Mode = 40 min., Standby
Mode = 40 min., and Suspend Mode = 40 min.

Maximum power management. Doze Mode = 20 sec., Standby
Mode = 20 sec., and Suspend Mode = 20 sec.

Allows you to set each mode individually. When enabled, each
option ranges from 20 sec. to 40 min.

Disable
(default)

Min. Power
Saving

Max. Power
Saving

User
Defined

ROM PCI/ISA BIOS(2A5IHD4A)

POWER MANAGEMENT SETUP

AWARD SOFTWARE, INC.

IRQ3 (COM 2)
IRQ4 (COM 1)
IRQ5 (LPT 2)
IRQ6 (Floppy Disk)
IRQ7 (LPT 1)
IRQ8 (RTC Alarm)
IRQ9 (IRQ2 Redir)
IRQ10(Reserved)
IRQ11(Reserved)
IRQ12 (PS/2 Mouse)
IRQ13 (Coprocessor)
IRQ14 (Hard Disk)
IRQ15 (Reserved)

: Enabled
: Enabled
: Enabled
: Enabled
: Enabled
: Disabled
: Enabled
: Enabled
: Enabled
: Enabled
: Enabled
: Disabled
: Disabled

ESC
F1
F5
F6
F7

:Quit
:Help
:Old Values
:Load Fail-Safe Settings
:Load Optimal Settings

↑↓→←

PU/PD/+/­(Shift) F2

:Select Item
:Modify
:Color

Power Management : User Define
PM Control by APM : Yes
Video Off Option : Suspend -> Off
Video Off Method : V/H SYNC+Blank
MODEM Use IRQ : 3

** PM Timers **
HDD Off After : Disable
Doze Mode : Disable
Standby Mode : Disable
Suspend Mode : Disable

** PM Events **
COM Ports Activity : Enabled
LPT Ports Activity : Enabled
HDD Ports Activity : Disabled
VGA Activity : Disabled

42

PM Control by APM

Video Off Option

Video Off Method

This determines the manner in which the monitor is blanked.

MODEM Use IRQ

This category is used to set an IRQ channel (IRQ 3, 4, 5, 7, 9, 10 or

11) for the modem installed in your system.

An Advanced Power Management device will be activated to
enhance the Max. Power Saving mode and stop the CPUs
internal clock. Use this option in Windows 95. (default)

The system BIOS will ignore APM when initiating the Power
Management mode.

Yes

No

Always On
Suspend -> Off

Susp, Stby -> Off

All Modes -> Off

The system BIOS will never turn off the screen.
The screen is off when the system is in the Suspend

mode.
The screen is off when the system is in the Standby

or Suspend mode.
The screen is off when the system is in the Doze,

Standby or Suspend mode.

This selection will cause the system to turn off the vertical and
horizontal synchronization ports and write blanks to the video
buffer.

This option only writes blanks to the video buffer.

Initializes display power management signaling. Use this
option if your video board supports it.

V/H
SYNC +
Blank

Blank
Screen

DPMS

43

PM Events and IRQ3-IRQ15

These are I/O events whose occurrence can prevent the system from
entering a power saving mode or can awaken the system from such a
mode. In effect, the system remains alert for anything which occurs to a
device which is configured as enabled, even when the system is in a
power saving mode.

When an I/O device wants to gain the attention of the operating system,
it signals this by causing an IRQ to occur. When the operating system
is ready to respond to the request, it interrupts itself and performs the
service. When set to Enable, the activity will neither prevent the system
from going into a power saving mode nor awaken it.

PNP/PCI Configuration Setup

This section describes configuring the PCI bus system. It covers some
very technical items, and it is strongly recommended that only experi­enced users make any changes to the default settings.

HDD Off
After

Doze
Mode

This is used to define the continuous HDD idle time that
elapses before the HDD enters the power saving mode (motor
off). When enabled and after the set time of system inactivity,
the hard disk drive will be powered down while all other de­vices remain active.

When enabled and after the set time of system inactivity, the
CPU clock will run at a slower speed (1/2 of full speed) while
all other devices still operate at full speed.

When enabled and after the set time of system inactivity, the
CPU clock will run at a speed slower than the speed during
Doze mode (1/3 of full speed) while all other devices still oper­ate at full speed.

When enabled and after the set time of system inactivity, the
CPU and onboard peripherals will shut off.

Standby
Mode

Suspend
Mode

PM Timers

These Green PC power saving categories are user configurable only
when the Power Management category is set to User Defined.

44

Resources Controlled By

The Award Plug and Play BIOS has the capacity to automatically con­figure all of the boot and Plug and Play compatible devices.

Reset Configuration Data

PCI IRQ Actived By

This category is used to set the method by which the PCI bus recog­nizes that an IRQ service is being requested by a device. Under all
circumstances, you should retain the default configuration unless a dif­ferent setting is needed.

The system will automatically detect the settings for you. The
categories that follow will not be shown on the PNP/PCI Con­figuration screen.

This allows you to set the IRQ/DMA (you have assigned your
add-in card) to Legacy ISA or PCI/ISA PnP. For non-PnP ISA
cards, select Legacy ISA. For PnP ISA or PCI cards, select
PCI/ISA PnP.

Auto

Manual

Enabled
Disabled

The BIOS will reset the configuration data once automatically.
The BIOS will not reset the configuration data.

ROM PCI/ISA BIOS(2A5IHD4A)

PNP/PCI CONFIGURATION SETUP

AWARD SOFTWARE, INC.

Resources Controlled By
Reset Configuration Data

:Auto
:Disabled

ESC
F1
F5
F6
F7

:Quit
:Help
:Old Values
:Load Fail-Safe Settings
:Load Optimal Settings

↑↓→←

PU/PD/+/­(Shift) F2

:Select Item
:Modify
:Color

PCI IRQ Actived By : Level
PCI IDE 2nd Channel : Disabled
PCI IDE IRQ Map To : PCI-AUTO
Primary IDE INT# : A
Secondary IDE INT# : B

45

PCI IDE 2nd Channel

This allows you to designate an IDE controller card inserted into one of
the PCI slots as your secondary IDE controller.

The IDE controller card is designated as the secondary IDE
controller.

No IDE controller card occupying any of the PCI slots.

Enabled

Disabled

Primary IDE INT# and Secondary IDE INT#

The Primary and Secondary IDE INT# categories are used to select the
PCI interrupt (A, B, C, or D) that is associated with the connected hard
drives.

PCI IDE IRQ Map To

This category is used to configure your system to the type of IDE disk
controller in use.

ISA

PCI-Auto

Designates which ISA slot is installed with an IDE controller
card; that is, if you are using an IDE controller card.

The system will scan and determine the PCI slot that is in­stalled with an IDE controller card.

Load Fail-Safe Settings

The Load Fail-Safe Settings option loads the troubleshooting default
values permanently stored in the ROM chips. These settings are not
optimal and turn off all high performance features. You should use
these values only if you have hardware problems. Highlight this option
on the main menu and press <Enter>. The message below will appear.

Load Fail-Safe Settings (Y/N)? N

If you want to proceed, type <Y> and press <Enter>. The default set­tings will be loaded.

46

Integrated Peripherals

Load Optimal Settings

The Load Optimal Settings option loads optimized settings from the
BIOS ROM. Use the Setup default values as standard values for your
system.

Highlight this option on the main menu and press <Enter>. The mes­sage below will appear.

Load Optimal Settings (Y/N)? N

Type <Y> and press <Enter> to load the Setup default values.

Internal PCI/IDE

Enables the primary and secondary IDE controller.
Enables the primary IDE controller.
Enables the secondary IDE controller.

Both
Primary
Secondary

IDE Primary Master/Slave PIO and IDE Secondary Master/Slave
PIO

Your system supports five modes, 0 (default) to 4, which primarily differ
in timing. When Auto is selected, the BIOS will select the best available
mode after checking your hard drive.

ROM PCI/ISA BIOS(2A5IHD4A)

INTEGRATED PERIPHERALS

AWARD SOFTWARE, INC.

Internal PCI/IDE
IDE Primary Master PIO
IDE Primary Slave PIO
IDE Secondary Master PIO
IDE Secondary Slave PIO

Onboard FDC Controller
Onboard Serial Port 1
Onboard Serial Port 2
Infra Red (IR) Function

Onboard Parallel Port
Parallel Port Mode

IR Transfer Mode

: Both
: AUTO
: AUTO
: AUTO
: AUTO

: Enabled
: COM1/3F8
: COM2/2F8
: Disabled

: 378/IRQ7
: SPP

: Half-Dup

ESC
F1
F5
F6
F7

:Quit
:Help
:Old Values
:Load Fail-Safe Settings
:Load Optimal Settings

↑↓→←

PU/PD/+/­(Shift) F2

:Select Item
:Modify
:Color

47

Auto

0-4

The BIOS will automatically set the system according to your
hard disk drives timing.

You can select a mode that matches your hard disk drives
timing.

Onboard FDC Controller

Enables the onboard floppy disk controller.
Disables the onboard floppy disk controller.

Enabled
Disabled

Onboard Serial Port 1 and Onboard Serial Port 2

Infra Red (IR) Function

The 586STC system board supports IrDA function for wireless connec­tivity between your computer and peripheral devices. To use the IrDA
function, follow the steps below.

1. Connect your IrDA cable to connector J9 of the 586STC system
board. Refer to page 12 for the location of connector J9.

2. Set Infra Red (IR) Function to the type of IrDA standard supported
by your IrDA peripheral/device.

You may not use IrDA (J9) and the COM 2 serial port (J10) at the same
time. If you are using the COM 2 serial port, set Infra Red (IR) Func­tion to Standard.

The system will automatically select an I/O address for the
onboard serial port 1 and serial port 2.

Allows you to manually select COM1, COM2, COM3, or
COM4 for the onboard serial port 1 and serial port 2.

Disables the onboard serial port 1 and/or serial port 2.

Auto

COM1 to
COM4

Disabled

Uses the COM 2 serial port.
HP mode IrDA.
SHARP mode IrDA.

Standard
HPSIR
ASKIR

48

Supervisor Password

If you want to protect your system and setup from unauthorized entry,
set a supervisors password with the System option selected in the
BIOS Features Setup.

If you want to protect access to setup only, but not your system, set a
supervisors password with the Setup option selected in the BIOS Fea­tures Setup. You will not be prompted for a password when you cold
boot the system.

Use the arrow keys to highlight the Supervisor Password option and
press <Enter>. The message below will appear.

Enter Password:

Type in the password. You are limited to eight characters. When done,
the message below will appear:

Confirm Password:

You are being asked to verify the password. Type in exactly the same
password. If you type in a wrong password, you will be prompted to
enter the correct password again.

Onboard Parallel Port

Parallel Port Mode

Selects the I/O address and IRQ for the onboard parallel port.

Disables the onboard parallel port.

378H/IRQ7
3BCH/IRQ7
278H/IRQ5

Disabled

Selects the parallel port mode according to the type of printer
device connected to your onboard parallel port.

SPP
EPP
ECP
EPP/ECP

49

To delete or disable the password function, highlight Supervisor Pass­word and press <Enter>, instead of typing in a new password. Press
the <Esc> key to return to the main menu.

User Password

If you want another user to have access only to your system but not to
setup, set a users password with the System option selected in the
BIOS Features Setup.

If you want a user to enter a password when trying to access setup, set
a users password with the Setup option selected in the BIOS Fea­tures Setup. Using a users password to enter Setup allows a user to
access only the User Password option that appears on the main
screen. Access to all other options is denied.

To set, confirm, verify, disable or delete a users password, follow the
procedures described in the section Supervisor Password.

IDE HDD Auto Detection

This option detects the hard disk parameters for the hard disk drives
installed in your system. Highlight this option and press <Enter>. A
screen similar to the one on the next page will appear.

ROM PCI/ISA BIOS

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

HARD DISKS TYPE SIZE CYLS HEAD RECOMP LANDZ SECTOR MODE

Primary Master:

Select Primary Master Option (N=Skip): N

OPTIONS SIZE CYLS HEAD RECOMP LANDZ SECTOR MODE

2 (Y) 853 827 32 0 1653 63 LBA

1 853 1654 16 65535 1653 63 Normal
3 853 827 32 65536 1653 63 Large

Note: Some OS (like SCO-UNIX) must be NORMAL for installation

ESC: Skip

50

Enter your choice, and press <Enter> to accept the parameters or press
<Esc> to abort. The parameters of the hard disk will be displayed in the
Standard CMOS Setup.

Hard Drive Mode

The system board supports three HDD modes: Normal, LBA and Large.
If your hard disk drive does not support LBA mode, the LBA option will
not be displayed. If your HDD has 1024 or fewer cylinders, the Large
option will not be displayed. If your hard drive is larger than 2.1GB, be
sure that your operating system supports it or you may need to create
separate partitions.

Normal Mode

Normal mode is the generic access mode in which neither the BIOS nor
the IDE controller will make any transformations during hard drive
access.

The maximum number of cylinders, heads and sectors for Normal mode
are 1024, 16 and 63, respectively.

no. Cylinders (1024)
x no. Heads ( 16)
x no. Sectors ( 63)
x bytes per sector ( 512)

528 megabytes

If you set your HDD to Normal mode, the maximum accessible HDD will
be 528 megabytes even though the physical size of the HDD may be
greater than that.

LBA (Logical Block Addressing) Mode

LBA mode is a HDD accessing method to overcome the 528 megabyte
limitation. The number of cylinders, heads and sectors shown on the
screen may not be the actual number for the HDD.

51

During HDD accessing, the IDE controller will transform the logical ad­dress described by the sector, head and cylinder number into its own
physical address inside the HDD.

The maximum HDD size supported by the LBA mode is 8.4 gigabytes. It
is obtained by the following formula.

no. Cylinders (1024)
x no. Heads ( 255)
x no. Sectors ( 63)
x bytes per sector ( 512)

8.4 gigabytes

Large Mode

Large mode is the extended HDD access mode supported by the sys­tem board. Some IDE HDDs have more than 1024 cylinders without
LBA support (in some cases, you may not want the LBA mode). This
system board provides another alternative to support these kinds of
HDDs.

The BIOS tells the operating system that the number of cylinders is half
the actual number and that the number of heads is double the actual
number. During disk access, the reverse conversion is done by the
INT13h routine.

Maximum HDD size:

no. Cylinders (1024)
x no. Heads ( 32)
x no. Sectors ( 63)
x bytes per sector ( 512)

1 gigabyte

Note:

To support LBA or Large mode, address translation software is included
in the Award BIOS HDD Sevice Routine (INT13h). If you are running an
operating system that bypasses the BIOS INT13 Service Routine, LBA
and Large Mode may fail.

52

HDD Low Level Format

The HDD Low Level Format utility is designed as a tool to save you
time formatting your hard disk. It automatically looks for the necessary
information of the drive you selected. This utility also searches for bad
tracks and lists them for your reference. Highlight this option and press
<Enter>. A screen similar to the one below will appear.

ROM PCI/ISA BIOS

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

Hard Disk Low Level Format Utility

SELECT DRIVE

BAD TRACK LIST

PREFORMED

Current select drive is : C

DRIVE: C CYLINDER: 0 HEAD: 0

Primary Master:
Primary Slave:
Secondary Master:
Secondary Slave:

SIZE

853

0
0
0

CYLS

1654

0
0
0

HEAD

16

0
0
0

RECOMP

65536

0
0
0

LANDZ

1653

0
0
0

SECTOR

63

0
0
0

MODE

AUTO
AUTO
AUTO
AUTO

Up/Down-Select item ENTER-Accept ESC-Exit/Abort

Copyright (C) Award Software, Inc. 1992-94 All Rights Reserved

No. CYLS HEAD

Warning:

Do not use this HDD Low Level Format feature for IDE hard drives.
They already have been low-level formatted at the factory. Do a high­level format only for those drives. Refer to the manual that comes with
your operating system.

Save & Exit Setup

When all the changes have been made, highlight Save & Exit Setup
and press <Enter>. The message below will appear:

Save to CMOS and Exit (Y/N)? N

Type Y and press <Enter>. The modifications you have made will be
written into the CMOS memory, and the system will reboot. You will
once again see the initial diagnostics on the screen. If you wish to
make additional changes to the setup, press <Ctrl> <Alt> <Esc> simul­taneously or <Del> after memory testing is done.

53

Exit Without Saving

When you do not want to save the changes you have made, highlight Exit
Without Saving and press <Enter>. The message below will appear:

Quit Without Saving (Y/N)? N

Type Y and press <Enter>. The system will reboot and you will once
again see the initial diagnostics on the screen. If you wish to make any
changes to the setup, press <Ctrl> <Alt> <Esc> simultaneously or
<Del> after memory testing is done.

Desktop Management Interface (DMI)

The 586STC system board comes with a DMI built into the BIOS. DMI,
along with the appropriately networked software, is designed to make
inventory, maintenance and troubleshooting of computer systems
easier. With DMI, a network administrator or MIS engineer can remotely
access some information about a particular computer system without
physically going to it. Quite often a service call may be unnecessary as
the problem can be solved remotely.

The DMI utility in the BIOS automatically records various information
about your system configuration. Information about the type and speed
of CPU, type and amount of memory for each memory slot, BIOS revi­sion level, types of add-in PCI boards and components, certain revision
numbers of hardware installed, etc. are automatically detected and
stored in the DMI pool, which is a part of the system board's Plug and
Play BIOS. Additional information, such as ISA based peripherals,
which may not be automatically detected, can be manually recorded in
the DMI pool by using the Add DMI menu. The DMI pool data is then
verified or updated whenever the system hardware or setup is altered.

Running the DMI Utility

To run the DMI utility, type: DMICFG.EXE. You can download this utility
from http://www.dfi.com.tw - BIOS & DRIVERS section or ftp.dfiusa.com ­/pub/DMI directory.

54

The DMI utility must run in real mode with at least 180K of base
memory. Memory managers like HIMEM.SYS (required by Windows)
must not be installed. To do this, boot up from a system diskette without
the AUTOEXEC.BAT and CONFIG.SYS files. REM HIMEM.SYS in the
CONFIG.SYS or press <F5> during bootup to bypass your
AUTOEXEC.BAT and CONFIG.SYS files.

Using the DMI Utility

s

n

Move cursor ENTER-Accept DEL-Delete ESC-Abort&Exit

 ¯

¬ ®

Award DMI Configuration Utility Copyright Award Software Inc, 1996

[Edit DMI] [Add DMI] [Load DMI File] [Save DMI File]

s

BIOS

System

Enclosure/Chassis

Processor

Memory Controller

Memory Module
Memory Module
Memory Module
Memory Module

Cache

Cache
Port Connector
Port Connector
Port Connector
Port Connector
Port Connector
Port Connector
Port Connector

System Slots

*** BIOS Auto Detect ***

Type : BIOS Information
Handle : 0000

Vendor Name : Award Software International, Inc.
BIOS Version : 4.51PG
BIOS Starting Address Segment : E000
BIOS Build Date :
BIOS Characteristics : Press [ENTER] for details
Size of BIOS ROM : 0128K

The four menus located on top of the DMI Configuration Utility screen

are Edit DMI, Add DMI, Load DMI File and Save DMI File. Use the ←
or → (left or right) arrow keys to select a menu from the Menu bar.

On the left side of the screen is a list of the system configuration items.

Use the ↑ or ↓ (up or down) arrow keys to select an item. The com-

mands at the bottom of the screen will allow you to navigate through
the various setup menus.

Edit DMI

1. Use the ← or → arrow keys to select the Edit DMI menu.

2. Highlight the item on the left screen that you would like to edit by

using the ↑ or ↓ arrow keys, then press <Enter>.

3. The cursor will move to the screen you select allowing you to edit
information. The screen will also display the auto-detected informa­tion.

55

4. Press <F10> to update the edited information into the flash ROM.

Add DMI

1. Use the ← or → arrow keys to select the Add DMI menu.

2. Highlight the item on the left screen that you would like to add by

using the ↑ or ↓ arrow keys, then press <Enter>.

3. The cursor will move to the screen you select allowing you to enter
information about the added item.

4. Press <F10> to save information into the flash ROM.

To view information about the added items, go to the Edit DMI menu.

Load DMI File

1. Use the ← or → arrow keys to select the Load DMI File menu.

2. The following message will appear.

Press [Enter] to select DMI file for load

Press <Enter>.

3. The DMI files will appear on the screen. Select the file you would
like to load and press <Enter>.

4. The following message will appear.

Do you want to execute? (Y/N)

Type <Y>. All previous DMI structures will be destroyed and the
new file will be saved into the flash ROM.

Save DMI File

1. Use the ← or → arrow keys to select the Save DMI File menu.

56

2. The following message will appear.

Press [Enter] to select DMI file for save

Press <Enter>.

3. Enter the directory and filename under which you would like the
DMI file saved.

System Error Report

When the BIOS encounters an error that requires the user to correct
something, either a beep code will sound or a message will be dis­played in a box in the middle of the screen and the message, PRESS
F1 TO CONTINUE, CTRL-ALT-ESC or DEL TO ENTER SETUP, will be
shown in the information box at the bottom. Enter Setup to correct the
error.

POST Beep

There are two kinds of beep codes in the BIOS. One code indicates
that a video error has occured and the BIOS cannot initialize the video
screen to display any additional information. This beep code consists of
a single long beep followed by three short beeps. The other code indi­cates that a DRAM error has occured. This beep code consists of a
single long beep.

Error Messages

One or more of the following messages may be displayed if the BIOS
detects an error during the POST. This list indicates the error messages
for all Awards BIOSes:

CMOS BATTERY HAS FAILED

The CMOS battery is no longer functional. It should be replaced.

57

CMOS CHECKSUM ERROR

Checksum of CMOS is incorrect. This can indicate that CMOS has be­come corrupt. This error may have been caused by a weak battery.
Check the battery and replace if necessary.

FLOPPY DISK(S) fail (80)

Unable to reset floppy subsystem.

FLOPPY DISK(S) fail (40)

Floppy type mismatch.

Hard Disk(s) fail (80)

HDD reset failed.

Hard Disk(s) fail (40)

HDD controller diagnostics failed.

Hard Disk(s) fail (20)

HDD initialization error.

Hard Disk(s) fail (10)

Unable to recalibrate fixed disk.

Hard Disk(s) fail (08)

Sector Verify failed.

Keyboard is locked out - Unlock the key

The BIOS detects that the keyboard is locked. Keyboard controller is
pulled low.

Keyboard error or no keyboard present

Cannot initialize the keyboard. Make sure the keyboard is attached
correctly and no keys are being pressed during the boot.

Manufacturing POST loop

System will repeat POST procedure infinitely while the keyboard
controller is pull low. This is also used for the M/B burn in test at the
factory.

58

BIOS ROM checksum error - System halted

The checksum of ROM address F0000H-FFFFFH is bad.

Memory test fail

The BIOS reports memory test fail if the memory has error(s).

IDE Device Drivers

To install the IDE drivers supported by the 586STC system board,
please refer to the Readme file contained in the provided diskettes.

59

Chapter 4

Troubleshooting Checklist

This chapter of the manual is designed to help you with problems that
you may encounter with your personal computer. To efficiently
troubleshoot your system, treat each problem individually. This is to
ensure an accurate diagnosis of the problem in case a problem has
multiple causes.

Some of the most common things to check when you encounter
problems while using your system are listed below.

1. The power switch of each peripheral device is turned on.

2. All cables and power cords are tightly connected.

3. The electrical outlet to which your peripheral devices are connected
is working. Test the outlet by plugging in a lamp or other electrical
device.

4. The monitor is turned on.

5. The displays brightness and contrast controls are adjusted properly.

6. All add-in boards in the expansion slots are seated securely.

7. Any add-in board you have installed is designed for your system and
is set up correctly.

Monitor/Display

If the display screen remains dark after the system is turned on:

1. Make sure that the monitors power switch is on.

2. Check that one end of the monitors power cord is properly attached
to the monitor and the other end is plugged into a working AC outlet.
If necessary, try another outlet.

3. Check that the video input cable is properly attached to the monitor
and the systems display adapter.

4. Adjust the brightness of the display by turning the monitors
brightness control knob.

60

The picture seems to be constantly moving.

1. The monitor has lost its vertical sync. Adjust the monitors vertical
sync.

2. Move away any objects, such as another monitor, speakers or fan,
that may be creating a magnetic field around the display.

The screen seems to be constantly wavering.

1. If the monitor is close to another monitor, the adjacent monitor may
need to be turned off. Fluorescent lights adjacent to the monitor may
also cause screen wavering.

Power Supply

When the computer is turned on, nothing happens.

1. Check that one end of the AC power cord is plugged into a live
outlet and that the other end is properly plugged into the back of the
system.

2. Make sure that the voltage selection switch on the back panel is set
for the correct type of voltage you are using.

3. The power cord may have a short. Inspect the cord and install a
new one if necessary.

Floppy Drive

The computer cannot access the floppy drive.

1. The floppy diskette may not be formatted. Format the diskette and
try again.

2. The diskette may be write-protected. Use a diskette that is not write­protected.

3. You may be writing to the wrong drive. Check the path statement to
make sure you are writing to the targeted drive.

4. There is not enough space left on the diskette. Use another diskette
with adequate storage space.

61

Hard Drive

Hard disk failure.

1. Make sure the correct drive type for the hard disk drive has been
entered in the BIOS.

2. If the system is configured with two hard drives, make sure the
bootable (first) hard drive is configured as Master and the second
hard drive is configured as Slave.

Excessively long formatting period.

1. If your hard drive takes an excessively long period of time to format,
it is likely a cable connection problem (or you have a very large hard
drive - but this will be normal).

Parallel Port

The parallel printer doesnt respond when you try to print.

1. Make sure that your printer is turned on and that the printer is on­line.

2. Make sure your software is configured for the right type of printer
attached.

3. Verify that the onboard LPT ports I/O address and IRQ settings are
configured correctly.

4. Verify that the attached device works by attaching it to a parallel port
that is working and configured correctly. If it works, the printer can
be assumed to be in good condition. If the printer remains
inoperative, replace the printer cable and try again.

5. Please also consult your local network administrator.

Serial Port

The serial device (modem, printer) doesnt output anything or is
outputting garbled characters.

1. Make sure that the serial devices power is turned on and that the
device is on-line.

62

2. Verify that the device is plugged into the correct serial port on the
rear of the computer.

3. Verify that the attached serial device works by attaching it to a serial
port that is working and configured correctly. If the serial device
does not work, either the cable or the serial device has a problem. If
the serial device works, the problem may be due to the onboard I/O
or the address setting.

4. Make sure the COM settings and I/O address are configured
correctly.

Keyboard

Nothing happens when a key on the keyboard was pressed.

1. Make sure the keyboard is properly connected.

2. Make sure there are no objects resting on the keyboard and that no
keys are pressed during the booting process.

System Board

1. Make sure the add-in cards are seated securely in the expansion
slot. If an add-in card is loose, power off the system, re-install the
card and power up the system.

2. Check the jumper settings to ensure that the jumpers are properly
set.

3. Verify that all SIMMs are seated securely into the SIMM sockets.

4. Make sure the SIMMs are in the correct locations.

5. If the board fails to function, place the board on a flat surface and
seat all socketed components. Gently press each component into its
socket.

6. If you made changes to the BIOS settings, re-enter setup and load
the BIOS defaults.

63

Appendix A

Types of Modules

The following modules have been tested with this board. Most untested
brands will work but a few may fail to do so.

SIMM

1MBx32
1MBx32
2MBx32
2MBx32
2MBx32
2MBx32
2MBx32
2MBx32
2MBx32
4MBx32
4MBx32
4MBx32
4MBx32
4MBx32
4MBx32
8MBx32
16MBx32

Brand

Fujitsu
OKI
OKI
NEC
Micron
TI
Micron
Micron
NEC
Hitachi
Fujitsu
Mitsubishi
Hitachi
NEC
NEC
NEC
LGS

Chip Number

81C1000A-70
M51440A-70
M511000B-70
424400-60
40447-60
TMS4400DJ-70
MT4C4007-70 (EDO)
MT4C4007-60 (EDO)
4218165-60 (EDO)
7400AS-70
8117400-70
422A06-70
5117400AS-70
4217400-60
4217405-70 (EDO)
4217405-60 (EDO)
71C16100AJ6

64

Memory Address Map

Appendix B
Memory and I/O Maps

Address Name Function

0000000 to 640KB System System Board Memory
009FFFF Board RAM

00A0000 to 128KB Video Reserved for Graphics
00BFFFF Display Memory Display Memory

00C0000 to 160KB I/O Reserved for ROM on
00E7FFF Expansion ROM I/O Adapter Card

00E8000 to 96KB ROM on System Board BIOS
00FFFFF the System Board

0100000 to Maximum System Board Memory
FFFFFFF Memory 256MB

65

Note:

The I/O address hex 0000 to 00FF are reserved for the system board
I/O. Hex 0100 to 03FF are available on the I/O channels.

I/O Address Map

I/O Address Function

0000-001F DMA Controller 1, 8237A-5
0020-003F Interrupt Controller 1, 8259A, Master
0040-005F Timer, 8254-2
0060-006F 8742 (Keyboard Controller)
0070-007F Real-time Clock, NMI

(Non-maskable Interrupt) Mask
0080-009F DMA Page Memory, 74LS612
00A0-00BF Interrupt Controller 2, 8259A
00C0-00DF DMA Controller 2, 8237A-5
00E8 Shadow RAM and Cache Control Bit
00F0 Clear Numeric Processor

Extension Busy
00F1 Reset Numeric Processor Extension
00F8-00FF Numeric Processor Extension
01F0-01F8 Fixed Disk
0200-0207 Game I/O
0278-027F Parallel Printer Port 2
02F8-02FF Serial Port 2
0300-031F Prototype Card
0360-036F Reserved
0378-037F Parallel Printer Port 1
0380-038F SDLC, Bisynchronous 2
03A0-03AF Bisynchronous 1
03B0-03BF Monochrome Display and Printer Adapter
03C0-03CF Reserved
03D0-03DF Color/Graphics Monitor Adapter
03F0-03F7 Diskette Controller
03F8-03FF Serial Port 1

66

Appendix C
Connectors

Connectors

J1
J2
J3
J4
J5
J6
J7
J8
J9
J10
J13
J15
J16
J17
J19
J20
J21
PL1

Parallel printer port
PS/2 keyboard connector
AT keyboard connector
Floppy disk controller connector
Secondary IDE hard disk drive connector
Primary IDE hard disk drive connector
PS/2 mouse connector
COM 1 serial port
IrDA connector
COM 2 serial port
Turbo LED connector
Green LED connector
Green switch connector
HD LED connector
Reset switch connector
Speaker connector
Keylock & Power LED connector
Power connector

67

Pin Assignments

J20 - Speaker connector

Pin

1

2
3
4

Function

Signal
Ground
Ground
+5V

J19 - Reset switch connector

Pin

1
2

Function

Ground
Signal

J21 - Keylock & Power LED

connector

Pin

1

2

3
4
5

Function

Power LED
Reserved
Ground
Keylock Signal
Ground

Use pins 1 and 3 for the chassis
power-on LED.

J16 - Green switch connector

Pin

1
2

Function

Ground
Signal

J15 - Green LED connector

Pin

1

2

Function

LED Power
Signal

Pin

1
2

Function

LED Power
Signal

J13 - Turbo LED connector

Pin

1

2
3
4
5

J9 - IrDA connector

Function

IrTX
Ground
IrRXL
N.C.
+5V

J17 - HD LED connector

Pin

1
2

Function

LED Power
Signal

68

PL1 - Power connector

Pin

1
2
3
4
5
6
7
8

9
10
11
12

Function

Power Good
+5V
+12V

-12V
Ground
Ground
Ground
Ground

-5V
+5V
+5V
+5V