DFI 586STE User manual

- 33170114 -
586STE
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 in-
terference when the equipment is operated in a residential installation.
This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular in-
stallation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and the receiver.
•Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
•Consult the dealer or an experienced radio TV technician for help.
Notice:
1.The changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to oper-
ate the equipment.
2.Shielded interface cables must be used in order to comply with the
emission limits.
The manufacturer makes no warranties with respect to this documenta-
tion and disclaims any implied warranties of merchantability, quality, or
fitness for any particular purpose. The information in this document is
subject to change without notice. The manufacturer reserves the right to
make revisions to this publication and to make changes to any and/or
all parts of its content, at any time, without obligation to notify any per-
son or entity of such changes. Further, the manufacturer assumes no
responsibility for any errors that may appear in this document.
All product names referred to this manual are properties of their respec-
tive 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
InstallingA Fan/Heatsink for CyrixCPUs.........................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.........................................................66

5
The 586STE, 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 586STE also
supports Intel Pentium processor with MMX™ technology - 166/
200MHz, future Intel PentiumOverDrive processors, Cyrix/IBM
6x86™ & 6x86L P120+/P133+/P150+/P166+, and AMD-K5 PR75/PR90/
PR100/PR120/PR133.
The 586STE 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 586STE 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, 2 dedicated 16-bit ISA slots and 1
shared PCI/ISA slot.
The 586STE is equipped with two NS16C550A-compatible serial ports,
a SPP/ECP/EPP parallel port, a floppy disk controller, 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 periph-
eral 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 IntelPentiumOverDrive processors
•Cyrix/IBM6x86™& 6x86L P120+/P133+/P150+/P166+
- 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
•Super I/O controller
•Two NS16C550A-compatible high speed UARTs
•One SPP/ECP/EPP parallel port
•Supports 360KB, 720KB, 1.2MB, 1.44MB, and 2.88MB floppy drives
•Two USB connectors supported in future revision
CPU SOCKET
•321-pin ZIF socket (Intel Socket 7)
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
•2 dedicated 16-bit ISA slots
•1 shared PCI/ISA slot
PCB
•4 layers, Baby AT
•22cm (8.66") x 22cm (8.66")

8
Package Checklist
The 586STE package contains the following items:
•The 586STE system board
•The 586STE 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 586STE 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 expo-
sure to dust, static electricity, direct sunlight, excessive humidity, ex-
treme cold, and water can damage the operational capabilities of your
system board. Avoid placing the unit on surfaces such as carpeted
floors. These areas also attract static electricity which can damage
some circuits on your system board.
Make sure the power source has a properly grounded, three-pronged
socket. It is essential that the power connection be properly grounded
for correct functioning of your system board. For further protection, we
recommend that you use a surge suppressor. This will protect the sys-
tem board from damage that may result from a power surge on the
electrical line.
Move items that generate magnetic fields away from your system board
since magnetic fields can also damage your system board. Once you
have selected the ideal location, unpack the 586STE 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 anti-
static wrist strap and attaching it to a metal part of the system chassis.
If a wrist strap is unavailable, establish and maintain contact with the
system chassis throughout any procedures requiring ESD protection.
Installing the System Board
If you are installing the 586STE system board, the following outlines the
basic installation steps. Before installing the system board into your sys-
tem unit, you should prepare the tools you will need.
You will need:
•One medium size, flat-bladed screwdriver
•One medium Phillips screwdriver
•One needle-nosed pliers
•One small nutdriver
1.Unlock your system unit. Turn off the power and disconnect all
power cords and cables.

11
2.Remove the system unit cover. Refer to the manufacturer’s instruc-
tions if necessary.
3.Detach all connectors from the old system board and remove ex-
pansion 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 586STE 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 586STE.
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 586STE system board into the case and re-
place 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-PS/2 mouse connector
J2-IrDA connector
J3-COM 2 serial port
J4-Parallel printer port
J5-COM 1 serial port
J6- Floppy disk controller connector
J7-Secondary IDE hard disk drive connector
J8- Primary IDE hard disk drive connector
J9-Turbo LED connector
J10-HD LED connector
J11-Green LED connector
J12 -Green switch connector
J13 -Reset switch connector
J14 -Speaker connector
J16 -Keylock & Power LED connector
KB1-PS/2 keyboard port
KB2-AT keyboard 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 - 16-bit ISA slotspage 30
page 30
Refer to
Sockets
SM1 to SM4 - SIMM sockets
U1 - ZIF socketpages 14-15
pages 22-24
Refer to
Jumpers
JP1-JP6, JP9-JP11, JP14
Intel, Cyrix/IBM and AMD processors
JP13 - 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 586STE system board can support 8MB to 256MB of memory us-
ing 1MBx32, 2MBx32, 4MBx32, 8MBx32, or 16MBx32 72-pin SIMMs.
The table below shows the supported SIM modules and their corre-
sponding memory sizes.
SIMMs
1MBx32
2MBx32
4MBx32
8MBx32
16MBx32
Memory Size
4MB
8MB
16MB
32MB
64MB
The table below summarizes the bank locations and modules needed
for the corresponding memory sizes.
SIMM1
1MBx32
—
2MBx32
—
1MBx32
1MBx32
2MBx32
MemorySize
8MB
8MB
16MB
16MB
16MB
24MB
24MB
Bank0
SIMM2
1MBx32
—
2MBx32
—
1MBx32
1MBx32
2MBx32
SIMM4
—
1MBx32
—
2MBx32
1MBx32
2MBx32
1MBx32
Bank1
SIMM3
—
1MBx32
—
2MBx32
1MBx32
2MBx32
1MBx32

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
MemorySize
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
Bank0
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
Bank1

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.
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 com-
pletely seated. Tilt the module upright until it locks in place in the
socket.
Cache Memory
The 586STE system board can support 256KB (32Kx32 x2) or 512KB
(64Kx32 x2) pipeline/linear burst. Your system board may come with
256KB or 512KB cache mounted at locations U5 and U6 of the system
board.
Regardless of the amount of cache memory installed, one SRAM is
mounted on location U10 for tag SRAM to store the cacheable ad-
dresses.
Cacheable Memory
256KB
512KB64MB 128MB
Cache SizeCacheable Range

17
Jumper Settings for CMOS Clear
Jumper JP13
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 JP13 pins 2 and 3 to
On. Power on your system. After you boot up an operating system, turn
your system off again. Set JP13 back to its default setting, pins 1 and 2
On.
CPU Installation
The 586STE 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 JP4, JP9, JP10 and JP11 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 JP1 and JP2 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.
2-3 On: CMOS Clear
1
2
3
1-2 On: Normal
(default)
1
2
3

18
After setting these jumpers, the CPU 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 the processors in the market and is the
actual operating clock of the processor.
external bus clock x frequency ratio = internal clock speed
Jumper JP6 is used to set the cache burst mode of your processor. Refer to
the following pages and set this jumper accordingly.
Jumpers JP3, JP5 and JP14 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 Bus Clock of the CPUs supported by
the system board and their corresponding PCI Clock and Bus Clock.
External Bus Clock
50MHz
55MHz
60MHz
66MHz
PCI CLK
25MHz
27.5MHz
30MHz
33MHz
ISA Bus CLK
8.333MHz
9.1666MHz
7.5MHz
8.25MHz

19
Jumper Settings for IntelProcessors
Warning:
1.JP6 is for Cache Burst Mode Select. When using an Intelprocessor, you have to set JP6
to Off for interleave burst.
2.The default setting of JP3, JP5 and JP14 is 3.3V. If the voltage of your processor is not
3.3V, make sure you set JP3, JP5 and JP14 according to the voltage of your processor,
otherwise, your system will hang.
JP6
1
2
JP6
Off
On
Processors
Intel/AMD-K5
Cyrix/IBM
JP14
Processor Voltage
3.3V* (VR/STD)
3.5V (VRE)
2.9V
2.8V#
2.7V
* Default
# Pentium Processor with MMX™
Technology - 166/200MHz
JP14
1 2
34
JP5
7
8
1
2
JP3
1
2
5
6
JP5
All Off
JP3
All Off
5-6 On
3-4 On
1-2 On
3-4 On
5-6 On
7-8 On
3-4 On
5-6 On
7-8 On
1-2 On
1-2 On
1-2 On
1-2 On
3-4 On
1-2 On
1-2 On
1-2 On
2-3 On
JP9
JP10
JP11
JP11
2-3 On1-2 On
IntelProcessors
75MHz
90/120/150MHz
100/133/166/200MHz
Ext. Bus
CLK
50MHz
60MHz
66MHz*
JP4
3-4 On, 7-8 On
3-4 On, 5-6 On
JP9
2-3 On
2-3 On
JP10
2-3 On
2-3 On
1-2 On
2-3 On
5-6 On
* Default
JP4
2
1
7 8 1
2
3
* Default
JP1JP2
1
2
3
1
2
3
IntelProcessors
75/90/100MHz
120/133MHz
150/166MHz
200MHz
Freq. Ratio
1.5x*
2x
2.5x
3x
JP1
1-2 On
1-2 On
2-3 On
2-3 On
JP2
1-2 On
2-3 On
2-3 On
1-2 On

20
Warning:
1.JP6 is for Cache Burst ModeSelect. When using a Cyrix/IBMprocessor, you have to
set JP6 to On for linear burst.
2.The default setting of JP3, JP5 and JP14 is 3.3V. If the voltage of your processor is not
3.3V, make sure you set JP3, JP5 and JP14 according to the voltage of your processor,
otherwise,your system will hang.
Jumper Settings for Cyrix/IBM6x86™& 6x86L Processors
Processor Voltage
* Default
3.3V* (VR/STD)
3.5V (VRE)
2.9V
2.8V (6x86L)
2.7V
1
2
JP5
7
8
JP3
1
2
5
6
12
34
JP14
JP14
1-2 On
JP5
All Off
JP3
All Off
5-6 On
3-4 On
1-2 On
3-4 On
5-6 On
7-8 On
3-4 On
5-6 On
7-8 On
1-2 On
1-2 On
1-2 On
1-2 On
3-4 On
1-2 On
1-2 On
JP6
12
JP6
Off
On
Processors
Intel/AMD-K5
Cyrix/IBM
JP4
2
1
7 8
Cyrix/IBM
Processors
P166+
P120+
P133+
P150+
Ext. Bus
CLK
50MHz
55MHz
60MHz
JP4
3-4 On, 7-8 On
1-2 On
66MHz3-4 On, 5-6 On
5-6 On
JP9JP10JP11
2-3 On
2-3 On
1-2 On
2-3 On
2-3 On
2-3 On
2-3 On
1-2 On
2-3 On
1-2 On
2-3 On
2-3 On
JP9
JP10
JP11
1
2
3
Cyrix/IBMProcessors
P120+/P133+/
P150+/P166+JP1JP2
1
2
3
1
2
3
Freq. Ratio
2x JP2
2-3 On
JP1
1-2 On