SY-6BA+

Motherboard
****************************************************

Pentium ® III, Pentium ® II & Celeron

Processor supported

82440 BX AGP/PCI Motherboard

66&100MHz Front Side Bus supported

ATX Form Factor

****************************************************

User's Guide
&
Technical Reference
SOYO ™ SY-6BA+
About This Guide
This User's Guide is for assisting system manufacturers and end users in setting up
and installing the Motherboard. Information in this guide has been carefully checked
for reliability; however, no guarantee is given as to the correctness of the contents.
The information in this document is subject to change without notice.

Copyright Notice
Copyright 1998, Soyo Computer Inc. All rights reserved. This manual is copyrighted
by Soyo Computer Inc. You may not reproduce, transmit, transcribe, store in a
retrieval system, or translate into any language, in any form or by any means,
electronic, mechanical, magnetic, optical, chemical, manual or otherwise, any part of
this publication without express written permission of Soyo Computer Inc.

Trademarks
Soyo is a registered trademark of Soyo Computer Inc. All trademarks are the property
of their owners.

Disclaimer
Soyo Computer Inc. makes no representations or warranties regarding the contents
of this manual. We reserve the right to revise the manual or make changes in the
specifications of the product described within it at any time without notice and without
obligation to notify any person of such revision or change. The information contained
in this manual is provided for general use by our customers. Our customers should be
aware that the personal computer field is the subject of many patents. Our customers
should ensure that their use of our products does not infringe upon any patents. It is
the policy of Soyo Computer Inc. to respect the valid patent rights of third parties and
not to infringe upon or assist others to infringe upon such rights.

Restricted Rights Legend

Use, duplication, or disclosure by the Government is subject to restrictions set forth in
subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause
at 252.277-7013.

Product Rights
Products mentioned in this manual are mentioned for identification purpose only.
Product names appearing in this manual may or may not be registered trademarks or
copyrights of their respective companies.
If you need any further information, please come to our home page on the Internet.
The address is "http://www.soyo.com.tw".

Tested To Comply
Edition: February 1999 FC
C With FCC Standards
Version 2.0 FOR HOME OR OFFICE USE
6BA+ SERIAL 100% POST CONSUMER
RECYCLED PAPER

ii
Table of Contents SY-6BA+

Table of Contents

SY-6BA+ MOTHERBOARD LAYOUT ...........................................1

CHAPTER 1 INTRODUCTION .....................................................2

1-1 KEY FEATURES......................................................2
1-2 HANDLING THE MOTHERBOARD..........................5
1-3 ELECTROSTATIC DISCHARGE PRECAUTIONS ....5

CHAPTER 2 HARDWARE SETUP ...............................................6

2-1 PREPARATIONS .....................................................6

2-2 UNPACKING THE MOTHERBOARD .......................7
2-3 INSTALLATION GUIDE............................................8

CHAPTER 3 BIOS SETUP UTILITY ...........................................26

3-1 SOYO COMBO SETUP .........................................28

3-2 STANDARD CMOS SETUP ...................................33
3-3 BIOS FEATURES SETUP ......................................36
3-4 CHIPSET FEATURES SETUP ...............................40
3-5 POWER MANAGEMENT SETUP...........................43
3-6 PNP/PCI CONFIGURATION SETUP......................47
3-7 LOAD SETUP DEFAULTS .....................................50
3-8 INTEGRATED PERIPHERALS...............................54
3-9 SUPERVISOR PASSWORD ..................................55
3-10 USER PASSWORD ...............................................56
3-11 IDE HDD AUTO DETECTION ................................57

CHAPTER 4 DRIVERS INSTALLATION......................................58

iii
 Motherboard Features SY-6BA+

SY-6BA+ MOTHERBOARD LAYOUT

PS/2 KB PS/2 Mouse
Connector Connector JP10
Power-On by Keyboard
DIMM 1
1 3 Jumper
DIMM 2
DIMM 3
DIMM 4
USB 1 USB 2 1
CPUFAN
Slot
® 1 FDC

PRT
COM 1

COM 2 1
Intel®
ATX 82443 BX
Power

1 1
AGP Slot
IDE 2 IDE 1

3V Lithium
PCI Slot #1
Battery
Ultra
I/O Chipset TM
SB-LINK JP5
1 IR1 5
PCI Slot #2 (PC-PCI)
1 3
CMOS Clear
Jumper

PCI Slot #3
Flash BIOS

WOL
Header
3 Intel®
PCI Slot #4 82371 EB
1
_ _
HDD LED
JP44 Speaker +
_ Turbo
PCI Slot #5 (Slave) + + LED
Keylock PWRBT
ISA Slot #1 _
Power Reset
LED +
ISA Slot #2 1

CHAFAN

Back Panel SY-6BA+ Platform

1
Introduction SY-6BA+

Chapter 1

INTRODUCTION
The SY-6BA+ AGP/PCI Motherboard is a high-performance Slot 1
processor supported ATX form-factor system board. SY-6BA+ uses
the 82440 BX Chipset technology and supports Slot 1 processors.
This Motherboard is fully compatible with industry standards and
adds many technical enhancements.

1-1 KEY FEATURES

Supports Intel Pentium® III processor (450-550MHz), Pentium® II
processor (233-450MHz) & CeleronTM processor (266-433MHz)
Auto-detect CPU voltage
PC98, ACPI, Ultra DMA/33
Supports system memory up to 1 GBytes
Power-on by modem or alarm
Supports Wake-On-LAN (WOL)
Supports power-on by keyboard
Supports onboard hardware monitoring
and includes Hardware Doctor ™utility
Supports Creative SB-LINK ™(PC-PCI) for PCI audio
1 x 32-bit AGP slot
5 x 32-bit bus mastering PCI slots
2 x USB ports onboard
1 x IrDA port
Supports multiple-boot function

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Introduction SY-6BA+

SY-6BA+ PLATFORM FEATURES

Board Size 4-layer PCB, 19x30.5cm(7.5”x12”), ATX Form
Factor
Slot1 Slot 1 for Pentium ® III, Pentium ® II & Celeron
Processor
Ø Supports the following processors
u 100MHz FSB
Pentium® II 350/400/450 MHz
Pentium® III 450/500/550 MHz

u 66MHz FSB
Pentium® II 233/266/300/333 MHz
Celeron 300A/333/366/400/433 MHz
Celeron 266/300 MHz

Ø Supports both boxed and non-boxed type of CPUs

Ø Includes a CPU mount kit with retention clip
Ø Features Auto-detection of CPU voltage
Chipset 82440 BX AGP Set
ATX Power 20-pin Male Connector
CPUFAN 3-pin CPU Cooling Fan Connector
Memory DIMM Bank (DIMM1~4)
Ø Four strips of 168-pin Unbuffered SDRAM DIMM
Ø Supports 8/16/32/64/128/256MB DIMM modules in
each bank
Ø Provides up to 1 Gbytes of main memory
Ø Supports ECC configuration
BIOS System BIOS built-in, Award BIOS
Ø APM, ACPI and "Plug-and-Play" function
Ø Supports multiple-boot function
Ø Onboard FLASH memory for easy upgrade
Ø Y2K Compliant
Bus Controller Compliant with version 2.1 PCI specifications
PCI Slots 5 x 32-bit Bus Mastering Slots
AGP Slot 1 x 32-bit AGP Slot
ISA Slots 2 x 16-bit ISA Slots

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Introduction SY-6BA+
IDE1, IDE2 2 x 40-pin Bus Mastering E-IDE/ATAPI Ports
Ø IDE1: Primary IDE Device Connector
Ø IDE2: Secondary IDE Device Connector
Ø Supports Ultra DMA/33

FDC 1 Floppy Disk Drive (FDD) Port

(Supports 1.2MB/1.44MB/2.88MB and LS120/3-mode FDD)

IR1 5-pin Serial Infrared Device Header

Keylock 5-pin KeyLock Header
Reset 2-pin Reset Switch Header
Speaker 4-pin PC Speaker Header
TB_LED 2-pin Turbo LED Header
HDD_LED 2-pin IDE Device LED Header
PWRBT ATX Power On/Off Switch 2-pin Header
JP5 CMOS Clear Jumper
JP10 Power On by Keyboard Jumper
JP44 WOL (Wake-On-LAN) 3-pin Header
SBLINK ™ PCI Audio Card Header (PC-PCI)

SY-6BA+ BACK-PANEL FEATURES

PRT 1 x Onboard 25-pin Female Parallel Printer Port
Ø ECP/EPP/SPP multi-mode parallel printer port
COM1, COM2 2 x Onboard RS-232 Serial Ports
Ø Feature 2 x high-speed UARTs (with 16550 FIFO)
PS/2 KB 1 x Onboard PS/2 Keyboard Connector
PS/2 Mouse 1 x Onboard PS/2 Mouse Connector
USB1, USB2 2 x Onboard USB (Universal Serial Bus) Connectors

4
Introduction SY-6BA+
1-2 HANDLING THE MOTHERBOARD
To avoid damage to your Motherboard, follow these simple rules
while unpacking:
Ø Before handling the Motherboard, ground yourself by grasping
an unpainted portion of the system's metal chassis.
Ø Remove the Motherboard from its anti-static packaging. Hold
the Motherboard by the edges and avoid touching its
components.
Ø Check the Motherboard for damage. If any chip appears loose,
press carefully to seat it firmly in its socket.

Warning: Do not apply power if the Motherboard appears

damaged. If there is damage to the board, contact your
dealer immediately.

1-3 ELECTROSTATIC DISCHARGE PRECAUTIONS

Make sure to ground yourself before handling the Motherboard or
other system components. Electrostatic discharge can easily
damage the components. Note that you must take special
precautions when handling the Motherboard in dry or air-conditioned
environment.

To protect your equipment from electrostatic discharge, take the

following precautions:
Ø Do not remove the anti-static packaging until you are ready to
install.
Ø Ground yourself before removing any system component from its
protective anti-static packaging. (To ground yourself, grasp the
expansion slot covers or other unpainted portions of the computer
chassis.)
Ø Frequently ground yourself while working or use a grounding strap.
Ø Handle the Motherboard by its edges and avoid touching its
components.

5
Hardware Setup SY-6BA+

Chapter 2

HARDWARE SETUP
Congratulations on your purchase of SY-6BA+ Motherboard. You
are about to install and connect your new Motherboard.

Note: Do not unpack the Motherboard from its protective

anti-static packaging until you have made the following
preparations.

2-1 PREPARATIONS
Gather and prepare all the following hardware equipment to
complete the installation successfully:

1. Slot 1 processor with built-in CPU cooling fan (boxed type).

Note: This Motherboard supports non-boxed type CPUs. The

heavier CPU cooling fan requires the installation of a CPU
support stand.

2. DIMM memory module

3. Computer case and chassis with adequate power supply unit
4. Monitor
5. PS/2 Keyboard
6. Pointing Device (PS/2 mouse)
7. Speaker(s) (optional)
8. Disk Drives: HDD, CD-ROM, Floppy drive …
9. External Peripherals: Printer, Plotter, and Modem (optional)
10. Internal Peripherals: Modem and LAN cards (optional)

6
Hardware Setup SY-6BA+

2-2 UNPACKING THE MOTHERBOARD

When unpacking the Motherboard, check for the following items:
Ø The SY-6BA+ 82440 BX AGP/PCI Motherboard
Ø This Quick Start Guide *
Ø The Installation CD-ROM *
Ø One IDE Device Flat Cable
Ø One Floppy Disk Drive Flat Cable
* If your board comes with a driver disc and a paper manual, the Quick Start Guide
and the CD-ROM are not included in the package.

Warning: Do not unpack the Motherboard from its anti-

static packaging until you are ready to install it.

Like most electronic equipment, your Motherboard may be damaged

by electrostatic discharge. To avoid permanent damage to
components ground yourself while working by using a grounding
strap. Otherwise, ground yourself frequently by touching the
unpainted portion of the computer chassis to drain the static
charges.
Handle the Motherboard carefully, holding it by the edges.
You are now ready to start the installation.

7
Hardware Setup SY-6BA+
2-3 INSTALLATION GUIDE
We will now begin the installation of the Motherboard. Please follow
the step-by-step procedure designed to lead you to a complete and
correct installation.

Warning: Turn off the power to the Motherboard, system

chassis, and peripheral devices before performing any
work on the Motherboard or system.

BEGIN THE INSTALLATION

Step 1. CPU Installation
Your SY-6BA+ motherboard comes with a CPU retention set kit. The
retention set is used to hold the processor attached to the Slot 1
CPU connector on the motherboard.

Follow these instructions to install your Slot 1 processor correctly.

Ø Retention Module

8
Hardware Setup SY-6BA+
1. Open the two sides by folding them up.

2. Push the locks on top of the CPU inward.

9
Hardware Setup SY-6BA+
3. Insert the CPU into the retention module. The CPU fits in the CPU slot
in only ONE way, do not try to force it in.

4. After completely inserting the CPU, push the two locks on top of the
CPU outward. Now your CPU is ready for use.

To remove the CPU, press the two notches on top of the CPU
inward. Now press the two slides on the retention module down
and remove the CPU.

10
Hardware Setup SY-6BA+

Note: Installing a heat sink and cooling fan on top of your

CPU is necessary for proper heat dissipation. Failing to
install these items may result in overheating and possible
burn-out of your CPU.

Step 2. CPU Fan Installation

Your Slot 1 processor kit comes with a cooling fan. Mount the fan on
the processor according to the instructions provided by the
manufacturer. The fan is a key component that will ensure system
stability. The fan prevents overheating, therefore prolonging the life
of your CPU.

Note: Remember to connect the fan to the appropriate power

source.

11
Hardware Setup SY-6BA+
Step 3. SDRAM Memory Module Installation
This Motherboard features 4 x DIMM Banks for 168-pin 3.3V
unbuffered and registered DIMM modules. Your board comes with
four DIMM sockets, providing support for up to 1GB of main memory
using DIMM modules from 8MB to 256MB. For 66MHz front side bus
CPUs use 12ns or faster memory; for 100MHz front side bus CPUs
use 8ns (100MHz, PC100 compliant) memory.

Number of
DIMM 1 DIMM 2 DIMM 3 DIMM 4
Memory Modules
1 1st
2 1st 2nd
3 1st 2nd 3rd
4 1st 2nd 3rd 4th
RAM Type SDRAM
Memory Module
8/16/32/64/128/256 Mbytes
Size (MB)
Note: (1) 256 MB memory modules available on PC registered DIMM only.
(2) Always install memory modules in the order prescribed in this table.
(3) Do not install unbuffered and registered memory modules together.

Important: It is of prime importance that you install DIMM modules

as outlined in the table above in order to preserve signal integrity on
100MHz front side bus systems.

12
Hardware Setup SY-6BA+
Step 4. IDE Device Installation (HDD, CD-ROM)
This Motherboard offers two primary and secondary IDE device
connectors (IDE1, IDE2.) It can support up to four high-speed HDD
or CD-ROM.

Connect one side of the 40-pin flat cable to the IDE device (HDD or
CD-ROM) and plug the other end to the primary (IDE1) or secondary
(IDE2) directionally keyed IDE connector on the Motherboard.
This Motherboard can support up to four HDDs.

Step 5. Floppy Drive Installation

The system supports 5 possible floppy drive types: 720 KB, 1.2 MB,
1.44 MB, 2.88 MB, and LS-120. In addition, this Motherboard
supports a 3-mode (720KB/1.2MB/1.44MB) floppy commonly used
in Japan.
Connect one side of the 34-pin flat cable to the floppy drive and plug
the other end to the floppy drive connector on the Motherboard.
This Motherboard can support up to 2 floppy drives.

Step 6. Front Panel Connections

_ _
HDD LED
Speaker +
_ Turbo
+ + LED

Keylock PWRBT
_
Power Reset
LED +
13
Hardware Setup SY-6BA+
Plug the computer case's front panel devices to the corresponding
headers on the Motherboard.

1. Power LED & KeyLock

Plug the Power LED cable into the 5-pin Keylock header.
Some systems may feature a KeyLock function with a front panel
switch for enabling or disabling the keyboard. Connect the KeyLock
switch to the 5-pin Keylock header on the Motherboard.
Please install according to the following pin assignment: pin 1,3 are
for Power LED and pin 4,5 are for Keylock.

2. Reset
Plug the Reset push-button cable into the 2-pin Reset header on the
Motherboard. Pushing the Reset button on the front panel will cause
the system to restart the boot-up sequence.

3. Speaker
Attach the 4-pin PC speaker cable from the case to the Speaker
header on the Motherboard.

4. Turbo LED
Connecting the 2-pin Turbo LED cable to the corresponding Turbo
LED header will cause the LED to light whenever the system is in
Turbo mode.
The manufacturer has permanently set this Motherboard in Turbo
mode due to most hardware and software compliance to turbo
mode.

5. IDE LED
Attach the 2-pin IDE device LED cable to the corresponding IDE
LED header on the Motherboard. This will cause the LED to lighten
when an IDE (HDD, CD-ROM) device is active.

14
Hardware Setup SY-6BA+

6. ATX Power On/Off Switch

Attach the 2-pin momentary type switch to the PWRBT header for
turning On or Off your ATX power supply.

Step 7. Back Panel Connections

All external devices such as the PS/2 keyboard, PS/2 mouse, printer,
modem, USB can be plugged directly onto the Motherboard back
panel.

Only after you have fixed and locked the Motherboard to the
computer case can you start connecting the external peripheral
devices.

When connecting an external device, use the following figure to

locate and identify which back panel connector to plug the device to.

PS/2 KB PS/2 Mouse

Connector Connector

USB 1 USB 2

PRT

COM 1

COM 2

15
Hardware Setup SY-6BA+
1. Onboard Serial Ports COM1/COM2
External peripherals that use serial transmission scheme include:
- serial mouse,
- and modem.
Plug the serial device cables directly into the COM1/COM2 9-pin
male connectors located at the rear panel of the Motherboard.

2. Parallel Port PRT

This parallel port is used to connect the printer or other parallel
devices.
Plug the parallel device cable into the 25-pin female connector
located at the rear panel of the Motherboard.

3. PS/2 Keyboard
Plug the keyboard jack directly into the 6-pin female PS/2 keyboard
connector located at the rear panel of the Motherboard.

4. PS/2 Mouse
Similarly, plug the mouse jack directly into the 6-pin female PS/2
mouse connector.

5. Universal Serial Bus USB1/USB2

This Motherboard provides two USB ports for your additional
devices. Plug the USB device jack into the available USB connector
USB1 or USB2.
- USB devices under Win98 are allowed.
- With Win95, use the flow UniversalHCI specifications.

16
Hardware Setup SY-6BA+
Step 8. Other Connections

1. Wake-On-LAN (WOL)
Attach the 3-pin connector from the LAN card which supports the
Wake-On-LAN (WOL) function to the JP44 header on the
Motherboard. This WOL function lets users wake up the connected
computer through the LAN card.
Please install according to the following pin assignment:

Wake-On-LAN
JP44 Pin Assignment

MP - Wake-up 3
GND 2
5VSB 1

2. Infrared (IR1)
Plug the 5-pin infrared device cable to the IR1 header. This will
enable the infrared transfer function. This Motherboard meets both
the ASKIR and HPSIR specifications.
Please install according to the following pin assignment:

Infrared (IR1) Connector

IR1 Pin Assignment

VCC IRRX GND IRTX

1 3 2 4 5

3. Other Display Cards

Insert other types of VGA cards into the PCI or ISA expansion slots
according to card specifications.

17
Hardware Setup SY-6BA+
Step 9. Cooling Fan Installation

1. CPU Cooling Fan

After you have seated the CPU properly on the processor, attach the
3-pin fan cable to the CPUFAN connector on the Motherboard. The
fan will stop when the system enters into Suspend Mode. (Suspend
mode can be enabled from the BIOS Setup Utility, [POWER
MANAGEMENT] menu.)
To avoid damage to the system, install according to the following pin
assignment:
CPU Cooling Fan
CPUFAN Pin Assignment
SENSOR 3
12V 2
GND 1

2. Chassis Cooling Fan

Some chassis also feature a cooling fan. This Motherboard features
a CHAFAN connector to provide 12V power to the chassis fan.
Connect the cable from the chassis fan to the CHAFAN 3-pin
connector. Install according to the following pin assignment:

Chassis Cooling Fan

CHAFAN Pin Assignment
GND 12V SENSOR

1 2 3

Note: CPUFAN must be installed for this Motherboard,

CHAFAN and PWRFAN are optional.

18
Hardware Setup SY-6BA+
Step 10. AGP VGA Card
Insert the AGP VGA card into the AGP slot. Then connect the
monitor information cable to the AGP card back plane external
connector.
Follow the manufacturer's instructions to perform the AGP VGA
drivers installation.

Other Display Cards: Insert other types of VGA cards into the PCI
or ISA expansion slots according to card specifications.

Step 11. PCI Audio Card

Some PCI soundcards require a PC-PCI DMA channel. Attach the
5-pin cable from your PCI audio card to the SB-LINK ™header on
the Motherboard. The SB-LINK ™will forward requests for legacy
DMA channel to the PCI Bus.

Step 12. ATX Power Supply

Plug the connector from the power directly into the 20-pin male ATX
PW connector on the Motherboard, as shown in the following figure.

ATX Power

19
Hardware Setup SY-6BA+

Warning: Follow these precautions to preserve your

Motherboard from any remnant currents when connecting
to ATX power supply:
Turn off the power supply and unplug the power cord
of the ATX power supply before connecting to ATX PW
connector.

The Motherboard requires a power supply with at least 200 Watts

and a "power good" signal. Make sure the ATX power supply can
take at least 720 mA * load on the 5V Standby lead (5VSB) to meet
the standard ATX specification.

* Note: If you use the Wake-On-LAN (WOL) function, make sure the
ATX power supply can support at least 720 mAmp on the 5V
Standby lead (5VSB).

Please install the ATX power according to the following pin

assignment:

ATX Power
12V 5V
5VSB 5V
PW-0K -5V
GND GND Ø Pay special care to the directionality.
5V GND
GND GND
5V PS-ON
GND GND
3.3V -12V
3.3V 3.3V

20
Hardware Setup SY-6BA+
Step 13. CMOS Clearing (JP5)
After you have turned off your computer, clear the CMOS memory
by momentarily shorting pins 2-3 on jumper JP5, for a few seconds.
Then restore JP5 to the initial 1-2 jumper setting in order to recover
and retain the default settings.
Jumper JP5 can be easily identified by its white colored cap.

CMOS
Clear CMOS Data Retain CMOS Data
Clearing
Short pin 2-3 for Short pin 1-2
JP5
at least 5 seconds to retain new 1 2 3
Setting 1 2 3
to clear the CMOS settings
Note: You must unplug the ATX power cable from the ATX power
connector when performing the CMOS Clear operation.

Step 14. Power-On by Keyboard Jumper (JP10)

You can choose to enable the Power-On by Keyboard function by
shorting pin 1-2 on jumper JP10, otherwise, short pin 2-3 to disable
this function.

Power-On by
Enable Disable
Keyboard
Short pin 1-2 to enable Short pin 2-3 and the
the Power-On by Power-On by Keyboard
JP10 Setting
Keyboard function. function is disabled.

1 2 3 1 2 3

Note: When using the Power-On by Keyboard function,

please make sure the ATX power supply can take at least
720mA load on the 5V Standby lead (5VSB) to meet the
standard ATX specification.

21
Hardware Setup SY-6BA+
Step 15. Power On
You have now completed the hardware installation of your
Motherboard successfully.

1. Turn the power on

2. To enter the BIOS Setup Utility, press the <DEL> key while the
system is performing the diagnostic checks,

Note: If you have failed to enter the BIOS, wait until the boot
up sequence is completed. Then push the RESET button and
press <DEL> key again at the beginning of boot-up, during
diagnostic checks.

Repeat this operation until you get the following screen.

3. The BIOS Setup screen appears:

ROM PCI/ISA BIOS
CMOS SETUP UTILITY
AWARD SOFTWARE, INC.
SOYO COMBO SETUP INTEGRATED PERIPHERALS
STANDARD CMOS SETUP SUPERVISOR PASSWORD
BIOS FEATURES SETUP USER PASSWORD
CHIPSET FEATURES SETUP IDE HDD AUTO DETECTION
POWER MANAGEMENT SETUP SAVE & EXIT SETUP
PNP/PCI CONFIGURATION EXIT WITHOUT SAVING
LOAD SETUP DEFAULTS

Esc : Quit ↑ ↓ → ← : Select Item

F10 : Save & Exit Setup (Shift) F2 : Change Color
Time, Date, Hard Disk Type…

22
Hardware Setup SY-6BA+
Step 16. Quick BIOS Setup
This Motherboard does not use any hardware jumpers to set the
CPU frequency. Instead, CPU settings are software configurable
with the BIOS [SOYO COMBO SETUP]. The [SOYO COMBO
SETUP] menu combines the main parameters that you need to
configure, all in one menu, for a quick setup in BIOS.
After the hardware installation is complete, turn the power switch on,
then press the <DEL> key during the system diagnostic checks to
enter the Award BIOS Setup program. The CMOS SETUP UTILITY
will display on screen. Follow these steps to configure the CPU
settings.

1. Select [LOAD SETUP DEFAULT]

Select the “LOAD SETUP DEFAULT” menu and type “Y” at the
prompt to load the BIOS optimal setup.

2. Select [STANDARD CMOS SETUP]

Set [Date/Time] and [Floppy drive type], then set [Hard Disk Type] to
“Auto”.

3. Select [SOYO COMBO SETUP]

Move the cursor to the [CPU Frequency] field to set the CPU
frequency, as shown in the following display.
ROM PCI/ISA BIOS
SOYO COMBO SETUP
AWARD SOFTWARE, INC.
CPU Frequency : 350Mhz(100*3.5) CPU Warning Temperature : Disabled
CPU Host/PCI Clock : 100/33MHz Current System Temp. : 24 ° C/75° F
CPU Ratio : x 3.5 Current CPU Temperature : 29 ° C/84° F
AGP Clock : Auto Current CPUFAN Speed : 6553 RPM
Current CHAFAN Speed : 6553 RPM
CPU L2 Cache ECC Checking : Enabled VID(V) : 2.78 V VTT(V) : 1.50V
3.3(V) : 3.31 V +5 (V) : 4.97V
Boot Sequence : A, C, SCSI +12(V) : 11.84V -12 (V) : -11.45V
Quick Power On Self Test : Enabled -5(V) : -4.88V
CPU Frequency : 350Mhz(100*3.5) CPUFAN Off In Suspend : Enabled
POWER ON Function : BUTTON ONLY
CPU Host/PCI Clock : 100/33MHz
KB Power ON Password : Enter
Hot Key Power ON : Ctrl-F1
CPU Ratio : x 3.5
Soft-Off by PWR-BTTN : Instant-Off
ESC : Quit ↑ ↓ → ← : Select Item
Power-On by Ring/LAN : Enabled
AGP Clock : Auto
Power-On by Alarm : Disabled
F1
F5
: Help PU/PD/+/- : Modify
: Old Values (Shift) F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

23
Hardware Setup SY-6BA+
Available [CPU Frequency] settings on your SY-6BA+ Motherboard
are detailed in the following table. If you set this field to [Manual],
you are then required to fill in the next two consecutive fields: (1) the
CPU Host/PCI Clock, and (2) the CPU Ratio.

CPU Frequency Select the working frequency of

your Pentium® III, Pentium® II,
233MHz (66 x 3.5) 350MHz (100 x 3.5) Celeron processor among
266MHz (66 x 4.0) 400MHz (100 x 4.0) these preset values.
300MHz (66 x 4.5) 450MHz (100 x 4.5) Note: Mark the checkbox
that corresponds to the working
333MHz (66 x 5.0) 500MHz (100 x 5.0)
frequency of your Pentium® III,
366MHz (66 x 5.5) 550MHz (100 x 5.5) Pentium® II, Celeron
400MHz (66 x 6.0) 600MHz (100 x 6.0) processor in case the CMOS
configuration should be lost.
433MHz (66 x 6.5)

Note: if you use Bus Frequencies of 75 MHz, make sure that

your PCI cards can cope with the higher PCI clock.

4. Select [SAVE & EXIT SETUP]

Press <Enter> to save the new configuration to the CMOS memory,
and continue the boot sequence.

Troubleshooting at First Start

l What should I do if the Motherboard refuses to start?

The 350MHz setting is used as default so whenever the BIOS

settings are erased or reset, the board will be able to boot up.
If the CPU frequency was set too high and the Motherboard refuses
to start up, you can always load the default values by pressing the
[Ins] key during boot up.

24
Hardware Setup SY-6BA+
Step 17. Power Off
There are two possible ways to turn off the system:
1. Use the Shutdown command in the Start Menu of Windows
95/98 to turn off your computer.
2. Press the mechanical power-button and hold down for over 4
seconds, to shutdown the computer. If you press the power-
button for less than 4 seconds, then your system will enter into
Suspend Mode.

You are now ready to configure your system with the BIOS setup
program. Go to Chapter 3: BIOS SETUP

25
BIOS Setup Utility SY-6BA+

Chapter 3

BIOS SETUP UTILITY

This Motherboard's BIOS setup program uses the ROM PCI/ISA
BIOS program from Award Software Inc.
To enter the Award BIOS program's Main Menu:
1. Turn on or reboot the system.
2. After the diagnostic checks, press the [Del] key to enter the
Award BIOS Setup Utility.

ROM PCI/ISA BIOS

CMOS SETUP UTILITY
AWARD SOFTWARE, INC.
SOYO COMBO SETUP INTEGRATED PERIPHERALS
STANDARD CMOS SETUP SUPERVISOR PASSWORD
BIOS FEATURES SETUP USER PASSWORD
CHIPSET FEATURES SETUP IDE HDD AUTO DETECTION
POWER MANAGEMENT SETUP SAVE & EXIT SETUP
PNP/PCI CONFIGURATION EXIT WITHOUT SAVING
LOAD SETUP DEFAULTS

Esc : Quit ↑ ↓ → ← : Select Item

F10 : Save & Exit Setup (Shift) F2 : Change Color
Time, Date, Hard Disk Type…

Selecting items
l Use the arrow keys to move between items and select fields.
l From the Main Menu press arrow keys to enter the selected
submenu.

Modifying selected items

l Use the [Up]/[Down] keys to modify values within the selected
fields. Some fields let you enter values directly.

26
BIOS Setup Utility SY-6BA+
Hot Keys: Function keys give you access to a group of commands
throughout the BIOS utility.
Function Command Description

F1 Help Gives the list of options available for each item.

Shift F2 Color Change the color of the display window.

Old values Restore the old values. These are the values that
F5 the user started the current session with.
F6 Load BIOS Loads all options with the BIOS Setup default
Defaults values.
F7 Load Setup Loads all options with the Power-On default values.
Defaults
F10 Save & Exit Saves your changes and reboots the system.
Setup
Quit Lets you return at anytime and from any location to
[Esc] the Main Menu.

SAVE AND EXIT SETUP

Select the [SAVE & EXIT SETUP] option from the Main Menu to
save data to CMOS and exit the setup utility. This option saves all
your changes and causes the system to reboot.
R O M P C I/IS A B IO S
C M O S
A W A R D
S E T U P U T IL I T Y
S O F T W A R E , IN C . Type [Y] to save the
S T A N D A R D C M O S S E T U P IN T E G R A T E D P E R IP H E R A L S
B IO S F E A T U R E S
C H IP S E T F E A T U R E S
S E T U P
S E T U P
S U P E R V IS O R
U S E R P A S S W O R D
P A S S W O R D
changes and exit or [N] to
P O W E R
SAVE to CMOS and EXIT (Y/N)? _
M A N A G E M E N T S E T U P ID E H D D A U T O D E T E C T IO N
P N P /P C I C O N F IG U R A T I O N
L O A D S E T U P D E F A U L T S
S A V E
E X IT
& E X I T
W I T H O U T
S E T U P
S A V IN G
return to the Main Menu
L O A D B IO S D E F A U L T S

E s c : Q u it ↑ ↓ → ← : S e le c t I t e m
and keep current values.
F 1 0 : S a v e & E x it S e t u p ( S h i f t ) F 2 : C h a n g e C o lo r
T im e , D a t e , H a r d D i s k T y p e …

EXIT WITHOUT SAVING

Selecting the [EXIT WITHOUT SAVING] option allows you to
abandon all data and exit setup, therefore ignoring all your changes.
R O M P C I/IS A B IO S
C M O S S E T U P U T I L I T Y

S T A N D A R D C M O S S E T U P
A W A R D S O F T W A R E , IN C .
IN T E G R A T E D P E R IP H E R A L S
Type [Y] to abandon
B IO S F E A T U R E S S E T U P S U P E R V IS O R P A S S W O R D
C H IP S E T
P O W E R
F E A T U R E S
M A N A G E M E N T
S E T U P
S E T U P
U S E R
ID E H D D
P A S S W O R D
A U T O D E T E C T IO N
changes and exit or [N] to
L O A D S E T U P
Quit Without Saving (Y/N)? _
P N P / P C I C O N F IG U R A T IO N
D E F A U L T S
S A V E
E X IT
& E X I T
W IT H O U T
S E T U P
S A V IN G return to the Main Menu
L O A D B I O S D E F A U L T S

E s c : Q u it ↑ ↓ → ← : S e l e c t I t e m and keep current values.

F 1 0 : S a v e & E x it S e t u p (Shift) F2 : C h a n g e C o l o r
Tim e , D a t e , H a r d D i s k T y p e …

27
BIOS Setup Utility SY-6BA+

3-1 SOYO COMBO SETUP

This Motherboard does not use any hardware jumpers to set the
CPU frequency. Instead, CPU settings are software configurable
with the BIOS [SOYO COMBO SETUP].

After the hardware installation is complete, turn the power switch on,
then press the <DEL> key during the system diagnostic checks to
enter the Award BIOS Setup program. The CMOS SETUP UTILITY
will display on screen. Then, select the [SOYO COMBO SETUP]
option from the main menu and press the <Enter> key.

ROM PCI/ISA BIOS

SOYO COMBO SETUP
AWARD SOFTWARE, INC.
CPU Frequency : 350Mhz(100*3.5) CPU Warning Temperature : Disabled
CPU Host/PCI Clock : 100/33MHz Current System Temp. : 24°C/75°F
CPU Ratio : x 3.5 Current CPU Temperature : 29°C/84°F
AGP Clock : Auto Current CPUFAN Speed : 6553 RPM
Current CHAFAN Speed : 6553 RPM
CPU L2 Cache ECC Checking : Enabled VID(V) : 2.78 V VTT(V) : 1.50V
3.3(V) : 3.31 V +5 (V) : 4.97V
Boot Sequence : A, C, SCSI +12(V) : 11.84V -12 (V) : -11.45V
Quick Power On Self Test : Enabled -5(V) : -4.88V
CPUFAN Off In Suspend : Enabled
POWER ON Function : BUTTON ONLY
KB Power ON Password : Enter
Hot Key Power ON : Ctrl-F1
Soft-Off by PWR-BTTN : Instant-Off
ESC : Quit ↑ ↓ → ← : Select Item
Power-On by Ring/LAN : Enabled
F1 : Help PU/PD/+/- : Modify
Power-On by Alarm : Disabled
F5 : Old Values (Shift) F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

The [SOYO COMBO SETUP] menu combines the main parameters

that you need to configure, all in one menu, for a quick setup in
BIOS.

28
BIOS Setup Utility SY-6BA+
3-1.1 Quick CPU Frequency Setup
Quick CPU Setting Description Note
Frequency Setup
CPU Frequency Manual Select the working
133MHz (66 x 2) frequency of your Slot 1
166MHz (66 x 2.5) processor among these
200MHz (66 x 3) preset values.
233MHz (66 x 3.5) Note: Setting this field to
266MHz (66 x 4) [Manual] requires you to
300MHz (66 x 4.5) fill in the next two
333MHz (66 x 5) consecutive fields: (1) the
(*Default) 350MHz (100 x 3.5) CPU Host/PCI Clock, and
400MHz (100 x 4) (2) the CPU Ratio.
450MHz (100 x 4.5)
500MHz (100 x 5)
550MHz (100 x 5.5)
If [CPU Frequency] field is set to [Manual]
CPU Host/PCI 66/33 MHz Select the host clock of your Slot 1
Clock 103/34 MHz processor among these values.
112/33 MHz Note: For the BX chipset, 66 and
133/44 MHz 100 MHz host clock frequencies
100/33 MHz are acceptable. However, the
124/41 MHz system stability is not guaranteed
75/37 MHz for other frequencies due to the
limitations of this chipset.
If [CPU Frequency] field is set to [Manual]
CPU Ratio After you have selected the host clock, choose the
right multiplier for the CPU. Options are: [2, 2.5, 3.,
3.5, 4, 4.5, 5, 5.5]. The CPU frequency is then
defined as [host clock freq.]x[multiplier], and should
the working frequency of your Pentium ® III, Pentium®
II & Celeron processor. processor.
AGP Clock Auto Default
/1 This option allows you to manually adjust the
/ 1.5 AGP host bus clock frequency to a value
determined as a fraction of the CPU host clock.
For example:
With a CPU front side bus of 66MHz,
[/ 1] sets à AGP Clock = 66MHz
[ / 1.5] sets à AGP Clock = 44MHz

29
BIOS Setup Utility SY-6BA+
3-1.2 L2 Cache Memory
Setting Description Note

CPU L2 Cache ECC Disabled

Checking Enabled This option activates Default
the CPU L2 cache ECC
checking function.

3-1.3 System Boot Control Settings

System Boot Setting Description Note
Control Settings

Boot Sequence A, C, SCSI Choose the boot

C, A, SCSI sequence adapted to
C, CD-ROM, A your needs, for example:
CD-ROM, C, A l [A, C, SCSI] means
D, A, SCSI the BIOS will look for an
E, A, SCSI operating system first in
F, A, SCSI drive A, then in drive C,
and eventually in SCSI
SCSI, A, C
device.
SCSI, C, A
C only
LS/ZIP, C
Quick Power On Disabled
Self Test Enabled Provides a fast POTS at Default
boot-up.

30
BIOS Setup Utility SY-6BA+
3-1.4 Power Management
PM Events Setting Description Note

POWER ON BUTTON-ONLY Disables the Wake-Up by Default

Function Keyboard function.
KB Power ON Enables you to wake-up the
Password system by entering a
password at the keyboard.
Hot Key You can wake-up the system
by pressing the key
combination of your choice
(Ctrl-F1~F12).
If [POWER ON Function] is set to [KB Power ON Password]
KB Power ON Enter (your Set the password that will wake-up
Password password) your system.
If [POWER ON Function] is set to [Hot Key]
KB Power ON Ctrl-F1~F12 Choose the key combination that will
Password wake-up the system. [Ctrl-F1 to Ctrl-
F12]
Soft-Off by Instant-off Default
PWR-BTTN Delay 4 Sec. Turns off the system power 4
seconds after pushing the
power button.

Power-On by Disabled Default

Ring/LAN Enabled The system will self-power on
me when the modem is
ringing.

Power-On by Disabled The system ignores the alarm. Default

Alarm Enabled Set alarm to power on the
system by the date (1-31) or
time (hh:mm:ss). If the date is
set to [0], the system will self-
power on by alarm everyday
at the set time.

31
BIOS Setup Utility SY-6BA+
3-1.5 CPU Device Monitoring
CPU Device Setting Description Note
Monitoring
CPU Warning Disabled Default
Temperature Enabled Set CPU temperature from
50°C to 70°C. The CPU will
slow down when CPU
temperature goes beyond
the preset value. The CPU
will continue to run slow
until the temperature
returns back within the safe
range.
Current System Show the current status of
°C/°F
Temp. the system temperature.
Current CPU Show the current status of
°C/°F
Temperature CPU temperature.
Current CPUFAN Show the current status of
°C/°F
Speed CPU Fan
Current CHAFAN Show the current status of
°C/°F
Speed the chassis Fan
VID, VTT, 3.3V, Show the current voltage
+12V, -5V, +5V, status.
V
-12V

CPUFAN Off In Disabled Disables the PM timer.

Suspend Enabled Switches off the CPU Fan Default
when the system enters
Suspend Mode.

32
BIOS Setup Utility SY-6BA+

3-2 STANDARD CMOS SETUP

Select the [STANDARD CMOS SETUP] option from the Main Menu
and press [Enter] key.

ROM PCI/ISA BIOS

STANDARD CMOS SETUP
AWARD SOFTWARE, INC.
Date (mm:dd:yy) : Fri, July 31 1998
Time (hh:mm:ss) : 11 : 30 : 33

HARD DISKS TYPE SIZE CYLS HEAD PRECOMP LANDZ SECTOR MODE
Primary Master : AUTO 0 0 0 0 0 0 AUTO
Primary Slave : None 0 0 0 0 0 0 ----
Secondary Master : None 0 0 0 0 0 0 ----
Secondary Slave : None 0 0 0 0 0 0 ----

Drive A : 1.44M, 3.5 in. Base Memory: 640K

Drive B : None Extended Memory: 3328K
Floppy 3 Mode Support : Disabled Other Memory: 128K
Video : EGA/VGA
Halt On : All Errors Total Memory: 4096K

Esc : Quit ↑↓→← : Select Item PU/PD/+/- : Modify

F1 : Help (Shift) F2 : Change Color F3 : Toggle Calendar

This screen allows you to modify the basic CMOS settings.

After you have completed the changes, press [Esc] key to return to
the Main Menu.

3-2.1 Date & Time

Display Setting Please Note
Date mm/dd/yyyy Type the current date You can also the
PUp/PDn keys to
toggle
Time hh:mm:ss Type the current time 24-hour clock format
3:15 PM is displayed
as 15:15:00

33
BIOS Setup Utility SY-6BA+
3-2.2 Hard Disks Type & Mode
Choose the type and mode for the hard disks that you have already
installed.
Primary Setting Description Note
(Secondary)
Master & Slave
Type Auto BIOS detects hard disk type Default
automatically.
User User defines the type of hard
disk.
None
Mode Auto BIOS detects hard disk mode Default
automatically.
Normal Normal IDE hard disk <528MB
LBA Enhanced IDE hard disk >528MB
Large Large IDE hard disk (for certain
hard disk)

Note: If you have any questions on your hard disk type or

mode, ask your hard disk provider or previous user for details.

3-2.3 Floppy Drives

Floppy Drives Setting Description Note
Drives A & B 360KB, 5.25 in.
1.2MB, 5.25 in.
720KB, 3.5 in.
1.44MB, 3.5 in. Default
2.88MB, 3.5 in.
None Not installed
Floppy 3-Mode Disabled Default
Support Drive A Supports 3-mode Special disk
Drive B floppy diskette: drive commonly
Both 740KB/1.2MB/ used in Japan
1.44MB on
selected disk drive.

34
BIOS Setup Utility SY-6BA+
3-2.4 Video
Select the video mode: EGA/VGA (Default), CGA 40, CGA 80,
Mono (Monochrome).

3-2.5 Halt On
When the BIOS detects system errors, this function will stop the
system. Select which type of error will cause the system halt: All
Errors (Default), No Errors, All But Diskette, All But Keyboard, All
But Disk/Key.

35
BIOS Setup Utility SY-6BA+

3-3 BIOS FEATURES SETUP

Select the [BIOS FEATURES SETUP] option from the Main Menu
and press [Enter] key.

ROM PCI/ISA BIOS

BIOS FEATURES SETUP
AWARD SOFTWARE, INC.
Virus Warning : Disabled Video BIOS Shadow : Enabled
CPU Internal Cache : Enabled C8000-CBFFF Shadow : Disabled
External Cache : Enabled CC000-CFFFF Shadow : Disabled
Swap Floppy Drive : Disabled D0000-D3FFF Shadow : Disabled
Boot Up NumLock Status : On D4000-D7FFF Shadow : Disabled
Typematic Rate Setting : Disabled D8000-DBFFF Shadow : Disabled
Typematic Rate (Chars/Sec) :6 DC000-DFFFF Shadow : Disabled
Typematic Delay (Msec) : 250
Security Option : Setup
PCI/VGA Palette Snoop : Disabled
Assign IRQ for VGA : Enabled
OS Select for DRAM >64MB : Non-OS2
HDD S.M.A.R.T. capability : Disabled ESC : Quit ↑ ↓ → ← : Select Item
Report No FDD For WIN 95 : No F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift) F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

After you have completed the changes, press [Esc] key and follow
the instructions on your screen to save your settings or exit without
saving.

36
BIOS Setup Utility SY-6BA+
3-3.1 Virus Warning
Setting Description Note
Virus Warning Disabled Default
Enabled Enable this option to protect
the boot sectors and
partition tables of your hard
disk. Any attempt to write to
them will the system to halt
and display a warning
message.

3-3.2 Cache Memory Options

Setting Description Note
CPU Internal Cache Disabled
Enabled Enables the CPU's Default
internal cache.
External Cache Disabled
Enabled Enables the external Default
memory.

3-3.3 System Boot Control Settings

System Boot Setting Description Note
Control Settings

Swap Floppy Disabled Default

Drive Enabled Changes the sequence of A
and B drives.
Boot Up On Puts numeric keypad in Default
NumLock NumLock mode at boot-up.
Status Off Puts numeric keypad in
arrow key mode at boot-up.

37
BIOS Setup Utility SY-6BA+
3-3.4 Typematic Settings
Typematic Setting Description Note
Settings

Typematic Disabled Default

Rate Setting Enabled Enables to adjust the
keystroke repeat rate.
The following [Typematic Rate] and [Typematic Delay] fields are
active only if [Typematic Rate Setting] is set to [Enabled]

Typematic Rate 6 (Char/sec) Choose the rate at which Default

8 (Char/sec) a character is repeated
10 (Char/sec) when holding down a
12 (Char/sec)
key.
15 (Char/sec)
20 (Char/sec)
24 (Char/sec)
30 (Char/sec)

Typematic Delay 250 (msec) Choose how long after Default

500 (msec) you press a key down the
750 (msec) character begins
1000 (msec)
repeating.

3-3.5 Security Option

Use this feature to prevent unauthorized system boot-up or use of
BIOS Setup. The following table describes the security settings.
Setting Description
Security Option System Each time the system is booted, the
password prompt appears.
Setup If a password is set, the password
prompt only appears when you attempt
to enter the BIOS Setup program.

38
BIOS Setup Utility SY-6BA+
3-3.6 Other Control Options
Other Control Setting Description Note
Options

PCI/VGA Disabled Default

Palette Snoop Enabled
The color of the monitor may be altered
when using an MPEG card. Enable this
option to restore the monitor's normal
color.
Assign IRQ Disabled
For VGA Enabled Use this default setting. Default
OS Select for OS2 When using an OS2 operating
DRAM>64MB system.
Non-OS2 When using another, Default
non-OS2 operating system.
HDD Disabled
S.M.A.R.T. Enabled Enable this field when your
capability HDD supports the S.M.A.R.T.
function.
Consult your HDD provider for
details.
Report No Yes Windows will release IRQ line 6
FDD For WIN (normally used by the Floppy
95 Disk Drive) after you disable
your on-board FDD and set this
field to [Yes].
No Windows will reserve INT 6 for
your FDD, whether it is
disabled or not.

Video or Disabled
Adapter BIOS Enabled Default
Shadow The BIOS is shadowed in a 16K segment if
it is enabled and if it has BIOS present.
These 16 segments can be shadowed
from ROM to RAM. BIOS shadow copies
BIOS code from slower ROM to faster
RAM. BIOS can then execute from RAM.

39
BIOS Setup Utility SY-6BA+

3-4 CHIPSET FEATURES SETUP

Caution: Change these settings only if you are already

familiar with the Chipset.

The [CHIPSET FEATURES SETUP] option changes the values of

the chipset registers. These registers control the system options in
the computer.
ROM PCI/ISA BIOS
CHIPSET FEATURES SETUP
AWARD SOFTWARE, INC.
Auto Configuration : Enabled
SDRAM RAS-to-CAS Delay :3
SDRAM RAS Precharge Time :3
SDRAM CAS latency Time :3
SDRAM Precharge Control :3
DRAM Data Integrity Mode : Non-ECC
System BIOS Cacheable : Disabled
Video BIOS Cacheable : Disabled
Video RAM Cacheable : Disabled
8 Bit I/O Recovery Time :1
16 Bit I/O Recovery Time :1
Memory Hole At 15M-16M : Disabled ESC : Quit ↑ ↓ → ← : Select Item
Passive Release : Enabled F1 : Help PU/PD/+/- : Modify
Delay Transaction : Enabled F5 : Old Values (Shift) F2 : Color
AGP Aperture Size (MB) : 64 F6 : Load BIOS Defaults
Spread Spectrum Modulated : Disabled F7 : Load Setup Defaults

After you have completed the changes, press [Esc] and follow the
instructions on your screen to save your settings or exit without
saving.
The following table describes each field in the CHIPSET
FEATURES SETUP Menu and how to configure each parameter.

40
BIOS Setup Utility SY-6BA+
CHIPSET FEATURES SETUP
CHIPSET Setting Description Note
FEATURES
Auto Disabled
Configuration Enabled It is strongly recommended Default
to enable this option so that
the system automatically
sets all chipset feature
options on the left panel of
the screen (except for cache
update & BIOS cacheable).
SDRAM RAS-to- 3 Use the default setting Default
CAS Delay 2
SDRAM RAS 3 Use the default setting Default
Precharge Time 2
SDRAM Cache
3 Use the default setting Default
Latency Time

SDRAM Precharge Disabled Use the default setting Default

Control Enabled
DRAM Data Non-ECC Choose according to the Default
Integrity Mode ECC DRAM type you have.

System BIOS Disabled

Cacheable Enabled The ROM area F0000H- Default
FFFFFH is cacheable.
Video BIOS Disabled
Cacheable Enabled The video BIOS C0000H- Default
C7FFFH is cacheable.
Video RAM Disabled Default
Cacheable Enabled The ROM area A0000-
BFFFF is cacheable.
8 BIT I/O
1 Use the default setting Default
Recovery Time

41
BIOS Setup Utility SY-6BA+

CHIPSET FEATURES SETUP (Continued)

CHIPSET Setting Description Note
FEATURES

16 BIT I/O
1 Use the default setting Default
Recovery Time

Memory Hole At Disabled Default

15M-16M Enabled Some interface cards will
map their ROM address to
this area. If this occurs,
select [Enabled] in this field.
Passive Release Enabled Use the default setting Default
Delayed
Enabled Use the default setting Default
Transaction
AGP Aperture 64 AGP could use the DRAM Default
Size 4-256MB as its video RAM. Choose
the DRAM size that you
wish to allocate as video
RAM.
Spread Spectrum Disabled Default
Modulated Enabled When using Spread
Spectrum Modulated 1.5%
or 6% for FCC or DOC
testing.

42
BIOS Setup Utility SY-6BA+

3-5 POWER MANAGEMENT SETUP

The [POWER MANAGEMENT SETUP] sets the system's power
saving functions.

ROM PCI/ISA BIOS

POWER MANAGEMENT SETUP
AWARD SOFTWARE, INC.
ACPI Function : Disabled IRQ 8 Break Suspend : Disabled
Power Management : User Define
PM Control by APM : Yes ** Reload Global Timer Events **
Video Off Method : V/H SYNC+Blank
IRQ [3-7,9-15], NMI : Enabled
Video Off After : Standby
Primary IDE 0 : Disabled
MODEM Use IRQ :3
Primary IDE 1 : Disabled
Doze Mode : Disabled
Secondary IDE 0 : Disabled
Standby Mode : Disabled
Secondary IDE 1 : Disabled
Suspend Mode : Disabled
Floppy Disk : Disabled
HDD Power Down : Disabled
Serial Port : Enabled
VGA Active Monitor : Enabled
Parallel Port : Disabled

ESC : Quit ↑ ↓ → ← : Select Item

F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift) F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

After you have completed the Power Management Setup, press

[Esc] to return to the Main Menu.

43
BIOS Setup Utility SY-6BA+
3-5.1 Power Management Controls
Power Setting Description Note
Management
Controls

ACPI Disabled Default

function Enabled ACPI (Advanced
Configuration Power
Management Interface)

Power User Define Lets you define the HDD and Default
Management system power down times.
Disable Disables the Green PC
Features.
Doze Standby Suspend HDD
timer timer timer power down
Min Saving 1 Hour 1 Hour 1 Hour 15 Min
Max Saving 1 Min 1 Min 1 Min 1 Min
PM Control Yes To use Advanced Power Default
by APM Management (APM) you
must run [power.exe] under
DOS V6.0 or later version.
No
Video Off V/H Selects the method by which Default
Method Sync+Blank the monitor is blanked.
Blank screen
DPMS
Supported

Video Off Standby Choose the PM mode you

After Suspend want video to go off after the
Doze mode is being active.

MODEM Use 3 Assigns an IRQ# to the Default

IRQ 3-11, NA modem device.

44
BIOS Setup Utility SY-6BA+
3-5.2 PM Timers
PM Timers Setting Description Note

The following [Doze Mode] field may be configured only if [Power

Management] is set to [User Define]
Doze Mode Disable Default
1Min- When the set time has System clock
1Hour elapsed, BIOS sends a drops to
command to the system to 33MHz.
enter Doze Mode.

The following [Standby Mode] field may be configured only if [Power

Management] is set to [User Define]
Standby Disable Default
Mode 1Min- When the set time has
1Hour elapsed, BIOS sends a
command to the system to
enter Standby Mode.

The following [Suspend Mode] field may be configured only if

[Power Management] is set to [User Define]
Suspend Disable Default
Mode 1Min- In Suspend mode, the Only an SL-
1Hour CPU stops completely (no Enhanced (or
instructions are executed.) SMI) CPU can
enter this mode.

HDD Power Disabled Default

Down 1-15Min When the set time has Some older
elapsed, BIOS sends a model HDDs
command to the HDD to may not support
power down. This turns off this advanced
function.
the HDD motor.

45
BIOS Setup Utility SY-6BA+
3-5.3 PM Events
PM Events Setting Description Note

VGA Active Disabled

Monitor Enabled Enables the power Default
management timers when a
[no activity] event is detected.
IRQ 8 Break Disabled Default
Suspend Enabled Alarm function is active.

3-5.4 Reload Global Timer Events

Power Down Setting Description Note
& Resume
Events

IRQ [3-7,9- Disabled

15], NMI Enabled The system monitors these Default
elements for activity. The
system will resume if [IRQ
activity] is detected.
IDE0, IDE1 Disabled Default
Ø Primary Enabled Enables the PM timers when
Ø Secondary [No Activity Event] is detected.
Floppy Disk Disabled Default
Serial Port Enabled Enables the PM timers when
Parallel Port [No Activity Event] is detected.

46
BIOS Setup Utility SY-6BA+

3-6 PNP/PCI CONFIGURATION SETUP

This option sets the Motherboard's PCI Slots.
ROM PCI/ISA BIOS
PNP/PCI CONFIGURATION
AWARD SOFTWARE, INC.

PnP OS Installed : No Based MEM base addr : N/A

Based MEM Length : 8K
Resources Controlled By : Manual
Assign IRQ For USB : Enabled
Reset Configuration Data : Disabled

IRQ-3 assigned to : Legacy ISA*

IRQ-4 assigned to : Legacy ISA*
IRQ-5 assigned to : PCI/ISA PnP*
IRQ-6 assigned to : PCI/ISA PnP*
IRQ-7 assigned to : PCI/ISA PnP*
IRQ-8 assigned to : PCI/ISA PnP*
IRQ-9 assigned to : PCI/ISA PnP*
IRQ-10 assigned to : PCI/ISA PnP*
IRQ-11 assigned to : PCI/ISA PnP*
IRQ-12 assigned to : PCI/ISA PnP*
IRQ-13 assigned to : PCI/ISA PnP* ESC : Quit ↑ ↓ → ← : Select Item
IRQ-14 assigned to : PCI/ISA PnP*
F1 : Help PU/PD/+/- : Modify
IRQ-15 assigned to : PCI/ISA PnP*
DMA-1 assigned to : PCI/ISA PnP* F5 : Old Values (Shift) F2 : Color
DMA-3 assigned to : PCI/ISA PnP* F6 : Load BIOS Defaults
DMA-5 assigned to : PCI/ISA PnP* F7 : Load Setup Defaults
DMA-6 assigned to : PCI/ISA PnP*
DMA-7 assigned to : PCI/ISA PnP*

Note: Starred (*) items will disappear when the [Resources

Controlled By] option is set to [Auto].

After you have completed the PCI Slot Configuration, press [Esc]
and follow the instructions on your screen to save your settings or
exit without saving.

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3-6.1 PNP/PCI Configuration Controls

PNP/PCI Setting Description Note
Controls

PnP OS Yes Set this field to [Yes] if you

Installed are running Windows 95,
which is PnP compatible.
No If the OS you are running Default
does not support PnP (If there is any
configuration. doubt, set this
field to [No])

Resources Manual BIOS does not manage PCI/ISA

Controlled By PnP card IRQ assignment.
Requires to assign IRQ-# and DMA-# to PCI
or ISA PnP manually.
IRQ-3,4,5,7,9,10,11,12,14,15 assigned to: _
DMA-0,1,3,5,6,7 assigned to: _
Auto The Plug-and-Play BIOS Recommended
auto manages PCI/ISA
PnP card IRQ assignment
automatically.
Reset Disabled Retain PnP configuration Default
Configuration data in BIOS.
Data Enabled Reset PnP configuration
data in BIOS.

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BIOS Setup Utility SY-6BA+

3-6.2 PNP/PCI Configuration Setup

PNP/PCI Setting Description Note
Setup
If [Resources Controlled By] is set to [Manual]
IRQ-# and PCI/ISA PnP Choose IRQ-# and IRQ-3,4,5,7,9,10,
11,12,14,15
DMA-# DMA-# assigned to
assigned to: PCI/ISA PnP card. DMA-0,1,3,5,6,7
Legacy ISA Choose IRQ-# and IRQ-3,4,5,7,9,10,
11,12,14,15
DMA-# assigned to
Legacy ISA card. DMA-0,1,3,5,6,7

Based MEM N/A Default

base addr I/O address C800,CC00,D000,D Use this function
400,D800,DC00. only when
(Asking card problems occur
provider for the while using
exactly I/O address some certain
of this add-on card.) add-on cards.
Based MEM Memory 8K,16K,32K,64K. This item
Length length (Please ask your appears only
card provider for the when the [Based
exactly memory MEM base addr]
length of this add-on set to I/O
card.) address.

Assign IRQ Enabled BIOS will assign IRQ Default

For USB for USB port.
Disabled BIOS won’ t assign
IRQ for USB port.

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BIOS Setup Utility SY-6BA+

3-7 LOAD SETUP DEFAULTS

Select the [LOAD SETUP DEFAULTS] option from the Main Menu to
load the system values you have previously saved. This option is
recommended if you need to reset the system setup and to retrieve
the old values.
ROM PCI/ISA BIOS
CMOS SETUP UTILITY
AWARD SOFTWARE, INC.
SOYO COMBO SETUP INTEGRATED PERIPHERALS
STANDARD CMOS SETUP SUPERVISOR PASSWORD
BIOS FEATURES SETUP USER PASSWORD
CHIPSET FEATURES SETUP
L o a d S E T U P D e f aIDE
u lHDD
t s AUTO
(Y/N DETECTION
)? _
POWER MANAGEMENT SETUP SAVE & EXIT SETUP
PNP/PCI CONFIGURATION EXIT WITHOUT SAVING
LOAD SETUP DEFAULTS

Esc : Quit ↑ ↓ → ← : Select Item

F10 : Save & Exit Setup (Shift) F2 : Change Color
Time, Date, Hard Disk Type…

Type [Y] to use the Setup Defaults followed by [Enter] or otherwise

[N] to return to the Main Menu and keep current values.

Warning: If you run into any problem after changing the

BIOS configuration, please load the SETUP DEFAULTS for
stable performance.

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3-8 INTEGRATED PERIPHERALS

Caution: Change these settings only if you are already

familiar with the Chipset.

The [INTEGRATED PERIPHERALS] option changes the values of

the chipset registers. These registers control the system options in
the computer.

The following screen shows setup default settings.

ROM PCI/ISA BIOS

INTEGRATED PERIPHERALS
AWARD SOFTWARE, INC.
IDE HDD Block Mode : Enabled Onboard Parallel Port : 378/IRQ7
IDE Primary Master PIO : Auto Parallel Port Mode : ECP+EPP
IDE Primary Slave PIO : Auto ECP Mode Use DMA :3
IDE Secondary Master PIO : Auto
IDE Secondary Slave PIO : Auto
IDE Secondary Master UDMA : Auto
IDE Secondary Slave UDMA : Auto
On-Chip Primary PCI IDE : Enabled
On-Chip Secondary PCI IDE : Enabled
USB Keyboard Support : Disabled
Init Display First : PCI Slot
Onboard PDC Controller : Enabled
Onboard Serial Port 1 : 3F8/IRQ4
Onboard Serial Port 2 : 2F8/IRQ3 ESC : Quit ↑ ↓ → ← : Select Item
UR2 Mode : Normal F1 : Help PU/PD/+/- : Modify
UR2 Duplex Mode : Half
F5 : Old Values (Shift) F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

The following tables describe each field in the INTEGRATED

PERIPHERALS Menu and provide instructions on how to configure
the IDE controls, FDC controls, and the onboard serial and parallel
ports.

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BIOS Setup Utility SY-6BA+
3-8.1 IDE Device Controls
IDE Controls Setting Description Note

IDE HDD Block Mode Disabled

Enabled Invokes multi-sector Default
transfer instead of one
sector per transfer. Not
all HDDs support this
function.
IDE mode 0-4 0 is the slowest speed
Ø Primary Master PIO 4 is the fastest speed
Ø Primary Slave PIO
Ø Secondary Master PIO
Auto For better performance Default
Ø Secondary Slave PIO and stability, we
suggest you use the
Auto setting to set the
HDD control timing.
IDE Disabled
ØPrimary Master UDMA Auto Select Auto to enable Default
ØPrimary Slave UDMA
Ultra DMA Mode
support.
On-Chip PCI IDE Disabled Turn off the on-board
Ø Primary IDE
Ø Secondary Enabled Use the on-board IDE Default

3-8.2 Keyboard Controls

Keyboard Controls Setting Description Note

USB Keyboard Support Disabled Turn off the on-board Default

IDE
Enabled Use a USB keyboard
Init Display First PCI Slot Choose which card – Default
AGP AGP Display card or
PCI VGA card – to
initialize first.

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BIOS Setup Utility SY-6BA+
3-8.3 FDC Controls
FDC Controls Setting Description Note

Onboard FDC Disabled Turn off the on-board

controller floppy controller
Enabled Use the on-board Default
floppy controller

3-8.4 Onboard Serial Ports

Onboard Serial Setting Description Note
Ports

Onboard UART 1 Disabled

Onboard UART 2 3F8/IRQ4 Choose serial port 1 & Default
2's I/O address. (port 1)
2F8/IRQ3 Do not set port 1 & 2 to Default
the same address (port 2)
3E8/IRQ4 except for Disabled or
2E8/IRQ3 Auto.
Auto
UR2 Mode Standard Supports a Standard Default
serial infrared IrDA.
IrDA 1.0
ASKIR Supports a Sharp
serial interface format.
FIR Fast Infrared Interface
If [UR2 Mode] is set to [IrDA 1.0]/[ASKIR]/[FIR]
UR2 Duplex Mode Half Choose [Half] or Default
Duplex [Duplex] to set UR2 in
half duplex mode or
full duplex mode
respectively. Refer to
your IR device
specifications to select
the suitable mode.

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BIOS Setup Utility SY-6BA+
3-8.5 Onboard Parallel Ports
Onboard Parallel Setting Description Note
Ports

Onboard Parallel 378H/IRQ7 Choose the printer I/O Default

Port 3BCH/IRQ7 address.
278H/IRQ5
Parallel Port Mode ECP/EPP The mode depends on Default
SPP your external device
ECP that connects to this
EPP/SPP port.
If [Parallel Port Mode] is set to [ECP] mode
ECP Mode use DMA 3 Choose DMA3 Default
1 Choose DMA1

3-8.6 MULTI I/O ADDRESSES

Default settings for multi-I/O addresses are as follows:
Port I/O Address IRQ Status
LPT1 378H 7 ECP/EPP
COM1 3F8H 4
COM2 2F8H 3

Warning: If a default I/O address conflicts with other I/O

cards such as sound card, you must change one of the I/O
addresses to remedy to this address conflict. (I/O addresses
can be adjusted from the BIOS Setup Utility)

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BIOS Setup Utility SY-6BA+

3-9 SUPERVISOR PASSWORD

Based on the setting you have made in the [Security Option] of the
[BIOS FEATURES SETUP] section, the password prevents access
to the system or the setup program by unauthorized users. Follow
this procedure to set a new password or disable the password:

1. Choose [BIOS FEATURES SETUP] in the Main Menu and

press [Enter]. Select the [Security Options] item and set the
field to:
a. [System]: The password is required every time the system
is booted. This means only a person who knows the
password can use this computer.
b. [Setup]: The password is required only when you attempt
to enter the BIOS Setup program.

2. Choose [SUPERVISOR PASSWORD] from the Main Menu and

press [Enter]. The following prompt appear:

Enter Password:

Warning: If you forget or lose the password, the only way

to access the system is to set jumper JP5 to clear the
CMOS RAM. All setup information is lost and you must run
the BIOS setup program again.

Note: If you do not wish to use the password function,

press [Enter] directly and the following message appears:
Password Disabled!!

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BIOS Setup Utility SY-6BA+
3. Enter your new password and press [Enter]. The following
message appears, prompting to confirm the new password:

Confirm Password:

4. Re-enter your password and then press [Enter] to exit to the

Main Menu.

This diagram outlines the password selection procedure:

Press: ↔
Type
Typethe
thePassword
Password ROM PCI/ISA BIOS Press <Enter> without
Press: ↔
and Press: <Enter> entering the password
CMOS SETUP UTILITYWithout entering password
AWARD SOFTWARE, INC.
STANDARD CMOS SETUP
Enter INTEGRATED PERIPHERALS
Password:
BIOS FEATURES SETUP SUPERVISOR PASSWORD
CHIPSET FEATURES
Enter Password: ∗ ∗ SETUP
∗∗∗ USER PASSWORD
Password Disabled!!
POWER MANAGEMENT SETUP IDE HDD AUTO DETECTION
PNP/PCI CONFIGURATION SAVE & EXIT SETUP
Confirm Password: ∗ ∗ ∗ ∗ ∗
LOAD SETUP DEFAULTS EXIT WITHOUT SAVING
LOAD BIOS DEFAULTS

After you confirm the password,

Esc : Quit After you confirm↑↓→←
press <Esc> to exit
the: Select Item
F10 : Save & Exit Setuppassword, ° F2 to: Change
(Shift)
press exit Color
Time, Date, Hard Disk Type…

3-10 USER PASSWORD

When the user password option is on, you are not allowed to change
any setting in the [CMOS SETUP UTILITY] except for changing the
user's password.

The password setting procedure is similar to that for the

[SUPERVISOR PASSWORD] (Refer to section 3-9).

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BIOS Setup Utility SY-6BA+

3-11 IDE HDD AUTO DETECTION

This Main Menu function automatically detects the hard disk type
and configures the STANDARD CMOS SETUP accordingly.

ROM PCI/ISA BIOS

CMOS SETUP UTILITY
AWARD SOFTWARE, INC.
HARD DISKS TYPE SIZE CYLS HEAD PRECOMP LANDZ SECTOR MODE
Primary Master : AUTO 0 0 0 0 0 0 AUTO
Primary Slave : None 0 0 0 0 0 0 ----
Secondary Master : None 0 0 0 0 0 0 ----
Secondary Slave : None 0 0 0 0 0 0 ----

Do you accept this drive C (Y/N)? _

ESC : Skip

Note: This function is only valid for IDE type of hard disk drives.

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Drivers installation SY-6BA+

Chapter 4

DRIVERS INSTALLATION
Your SY-6BA+ Motherboard comes with a CD-ROM labeled "SOYO
CD." The SOYO CD contains the user's manual file for your new
Motherboard, the drivers software available for installation, and a
database in HTML format with information on SOYO Motherboards
and other products.

The SOYO CD Start Up Program automatically detects which SOYO

Motherboard you own and displays the corresponding model name.

Step 1. Insert the SOYO CD into the CD-ROM drive

The SOYO CD will auto-run, and the SOYO CD Start Up Menu will
display as shown below.

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Drivers installation SY-6BA+
Step 1. Install Drivers
Click the Install Drivers button to display the list of drivers software
that can be installed with your Motherboard. The Start Up program
displays the drivers available for the particular model of
Motherboard you own. We recommend that you only install those
drivers.
The following drivers are available for Windows 95

(Driver Installation Menu)

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Drivers installation SY-6BA+
The following drivers are available for Windows 98

(Driver Installation Menu)

A short description of all available drivers follows:
Ø Intel Southbridge Drivers
Because Windows 95 does not recognize the Southbridge of the
newer Intel chipsets (TX, BX, ZX etc) this utility has to be run, it will
update the necessary Windows files. (Only for Windows 95)
Ø SOYO SpeedPro Busmaster Driver for Win 95/98
Without the busmaster drivers the CPU will need to be involved
every time data is read from or written to the Harddisk. The
busmaster drivers make use of DMA (Direct Memory Access) to
relieve the CPU of this burden, thus speeding up the system.
The SOYO SpeedPro driver makes use of an advanced caching
algorithm, which gives it an advantage over other busmaster drivers.
Ø Intel Busmaster Drivers for Windows 95
Ø Intel Busmaster Drivers for Win NT

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Drivers installation SY-6BA+
Ø Intel Busmaster Drivers for OS/2
These are the official busmaster drivers as supplied by Intel.

Note: Do NEVER install two types of busmaster drivers on

your system, this will lead to conflicts and system instability.
Therefore, if you install the SOYO SpeedPro Busmaster
driver you can NOT install the Intel Busmaster drivers.
Before installing a new busmaster driver first UNINSTALL the
old busmaster driver.
Ø SOYO CD Xpress Utility
This utility will enhance your CD-ROM Drive data-thoughput by
using space on the Harddisk as cache. This way application
programs can access data faster. This utility is suitable for Windows
95/98.

Ø System Monitor Utility

Your motherboard comes with a hardware monitoring IC. By
installing this utility Temperature, Fan speed and Voltages can be
monitored. It is also possible to set alarms when current system
values exceed or fall below pre-set values.
Because the Hardware monitor comes with default monitoring
settings that may not be appropriate to the configuration of the
actual system, it is possible that the user will have to change some
of these settings.
l Core voltage
The core voltage differs between generations of Intel CPUs, if the
Hardware monitor gives a warning, the settings for the safe range of
the core voltage has to be adjusted. This can be done by simply
clicking and dragging the upper and lower limit bars.

For example:
Newer Slot 1 CPUs have a core voltage of 2.0V. Therefore, set the
CPU Vcore limits to 1.8V and 2.2V. For 2.8V core voltage CPUs the
limits would be 2.6V and 3.0V.
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Drivers installation SY-6BA+
l Fan speed
The Hardware monitor can keep track of three fans. If the user does
not use all fans, the fans that are not in use should be disabled in the
Hardware monitor program, otherwise the Hardware monitor will
give an alarm. If this happens, make sure to disable monitoring for
that fan.
Note: However, to display the list of all drivers software available
with SOYO Motherboards, click the Display all drivers on the
SOYO CD button. Please make sure to install only the drivers
adapted to your system, or otherwise this cause system
malfunctions.

Step 2. Select which driver you want to install and

click OK

Notice 1: Once you have selected a driver, the system will

automatically exit the SOYO CD to begin the driver installation
program. When the installation is complete, most drivers require to
restart your system before they can become active.

Notice 2: You may click Cancel to abort the driver installation and
return to the main menu.

Notice 3: Once you have selected a driver, the system will

automatically exit the SOYO CD to begin the driver installation
program. When the installation is complete, most drivers require to
restart your system before they can become active.

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