FIC KT-748 User Manual

KT-748

MAINBOARD

MANUAL

DOC No.: M03403
Rev. : A0
Date : 6, 2003
Part No. : 25-11663-00

Notice

Handling Precautions

Warning:

1. Static electricity may cause damage to the integrated circuits on

the motherboard. Before handling any motherboard outside of its
protective packaging, ensure that there is no s tatic electric

charge in your body.

2. There is a danger of explosion if the battery is incorrectly
replaced. Replace only with the same or an equivalent type

recommended by the manufacturer.

3. Discard used batteries according to the manufacturer’s
instructions.

4. Never run the processor without the heatsink properly and firmly

attached. PERMANENT DAMAGE WILL RESULT!

Observe the following basic precautions when handling the motherboard
or other computer components:

n Wear a static wrist strap which fits around your wrist and is
connected to a natural earth ground.

n Touch a grounded or anti-static surface or a metal fixture such as a

water pipe.

n Avoid contacting the components on add-on cards, motherboards,

and modules with the golden fingers connectors plugged into the
expansion slot. It is best to handle system components by their
mounting brackets.

The above methods prevent static build-up and cause it to be discharged
properly.

Trademark

All trademarks mentio ned in this manual are registered properly of
the respective owners.

Handling Precautions

This manual may not, in whole or in part, be photocopied, reproduced,
transcribed, translated, or transmitted in whatever form without the
written consent of the manufacturer, except for copies retained by the
purchaser for personal archival purposes.

Table of Contents

Table of Contents

Chapter 1 Overview

Package Checklist ......................................................................... 1-2

The KT-748 Mainboard ............................................................. 1-3

Main Features ............................................................................... 1-4

FIC Unique Innovation for Users (NOVUS) -

Enhanced Mainboard Features and System Support ..................... 1-5

Chapter 2 Installation Procedures

1). Set System Jumpers.................................................................. 2-2

Clear CMOS...................................................................... 2-2

BIOS Anti-Reflash Protect ................................................ 2-3

2). Install Memory Modules.......................................................... 2-3

3). Install the CPU ......................................................................... 2-3

Connect ATX Power ......................................................... 2-6

4). Install Expansion Cards ............................................................ 2-7

5). Connect Devices ...................................................................... 2-9

Floppy Diskette Drive Connector...................................... 2-9

IDE Device Connectors..................................................... 2-9

Fan Connectors ................................................................ 2-10

Power Connectors ............................................................ 2-10

Front Panel Block Connector ............................................ 2-11

SPDIF_IN/SPDIF_OUT Connector................................... 2-12

CD Audio-In Connectors .................................................. 2-13

1394 Connectors (optional)............................................... 2-13

PS/2 Keyboard and Mouse Connector ............................. 2-14

RJ45 LAN Connector........................................................ 2-14

Serial Port Connectors...................................................... 2-15

Printer Connector ............................................................. 2-15

Audio I/O Jacks................................................................ 2-16

Front Audio Connector..................................................... 2-16

Universal Serial Bus Connectors ...................................... 2-17

5.1 Audio Channel Feature................................................ 2-18

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KT-748 Mainboard Manual

Chapter 3 BIOS Setup

CMOS Setup Utility ...................................................................... 3-1

Standard CMOS Setup .................................................................. 3-2

Advanced BIOS Features.............................................................. 3-4

Advanced Chipset Features .......................................................... 3-7

Integrated Peripherals ................................................................... 3-9

Power Management Setup............................................................. 3-12

PnP/PCI Configurations ................................................................ 3-16

PC Health Status ........................................................................... 3-17

Frequency/Voltage Control ........................................................... 3-18

Load Fail-Safe Defaults.................................................................. 3-19

Load Optimized Defaults................................................................ 3-19

Supervisor/User Password............................................................ 3-19

Save and Exit Setup ....................................................................... 3-20

Exit without Saving ....................................................................... 3-20

ii

Overview

Chapter 1

Overview

The new mainboard is an ATX sized motherboard supporting the latest gen­eration of AMD® processors at industry leading speeds. By utilizing DDR (
Double Data Rate ) transfer rate effectively reaches Front Side Bus speeds of
200/266/333/400 MHz. The board provides users with an ATA133 data transac­tion for hard drives and has 3 PC2100/PC2700/PC3200* DIMMs for up to 3 GB.
(* Only two PC3200 SDRAMs at most are allowed on board.)

The board is based around the high performance SiS 748 as North Bridge
and SiS 963/L (as South Bridge. Its AGP 8X functions supported AGP 3.0
interface and the most robust 3D games with software environments. The AGP
slot onboard supports 0.8/1.5 volt AGP card .

The board comes with a versatile range of I/O features such as 2 serial ports, 1
parallel port, 1 LAN, 2 optional IEEE 1394, 1 PS/2 mouse and keyboard connec­tor, 6 USB ports, 1 media connector (front audio, Line-in, Line-out and Mic-in).
In addition, the board is equipped with 5.1 audio channel enhanced PCI bus
master IDE connectors. Ample expansion is available through 5 PCI* and 1AGP
to meet the requirement for enjoying the CPU benefits in internet applicatons,
video/3D graphics performance, and so forth.
(* PCI1 to 4 are master; PCI5 slot is slave.)

Other key features are Remote On/Off, Auto Power Failure Recovery, inte­grated temperature monitoring and system fan control. Included also is lst
Utilities CD with enhanced drivers and a few bundled soft-ware solutions.

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KT-748 Mainboard Manual

Package Checklist

If you discover any item b elow was damaged or lost, please contact your
vendor.

1 - 2

NOTE: lst Utilities CD that contains patch files, onboard video/au­dio chip drivers, related online help and other us eful information
can be found in your mainboard package.

Please install it right after your Windows operating sy stem installa­tion is done.Place your lst Utility in the drive, an operating menu will

appears in your monitor. Please select Auto Installation. It will auto­matically detect which software tools (patc h files, drivers) that the
mainboard needs. Press OK button to go through the whole instal­lation procedure in a very straight forward and easy way. It also
provides you with a custom way to select wanted patch files and
software drivers that for onboard c hips use. The top menu of lst

Utilities lists all the functions that allowed by this board.

The KT-748 Mainboard

Overview

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KT-748 Mainboard Manual

Main Features

n CPU

Duron: 900 - 1.3 GHz at FSB 200 MHz
Athlon : 900 - 1.4 GHz at FSB 200/266 MHz
Athlon XP:

Polomino Core: 1500+ - 2100+ at FSB 266 MHz
Thorughtbred Core: 1700+ - 2600+ at FSB 266 MHz
Barton Core: 2500+ - 3000+ at FSB 333 MHz

(Those speed exceed above were not test yet when this book pressed.)

n Chipset

North Bridge: SiS® 748
South Bridge: SiS® 963L

n Memory

3 memory sockets :
support 184-pin PC2100/PC2700/PC3200 DDR SDRAM
memory size totally upto 3 GHz

n Expansion Slots

1 AGP Slot : Spec. 3.0 4X/8X; 5 PCI Slots

n IDE Connections

2 IDE connectors - PIO mode, Ultra DMA 66/100/133
up to 4 devices

n Audio Features

Realtek ALC655 controller; AC97 Link
LINE_IN, LINE_OUT, MICROPHONE_IN Jack

5.1 audio channel; front audio pinheaders

n Mounting Holes

6 holes

n Mainboard Size

12 x 9 (unit: inch)

1 - 4

Overview

n I/O Ports

2 IDE connectors ­PIO, Bus Master, Ultra DMA 66/100/133
up to 4 devices
2 serial ports COM1 and COM2
1 parallel port
PS/2 mouse and PS/2 keyboard
6 USB 2.0 ports

n LAN

RTL8100C/8110S® 10/100/1000 Ethernet

n IEEE 1394 Ports (optional)

VT6307L; 2 ports; 1 bracket with cable

FIC Unique Innovation for Users (NOVUS) -

Enhanced Mainboard Features and System Support

n LogoGenie

A user friendly GUI supporting Windows 95/98SE (not Windows 2000/
NT/ME/XP), LogoGenie allows you to customize, create or select a Logo
which will be displayed when the system is booting.

NOTE:

1. LogoGenie s upports Award BIOS only.

2. If you create a Logo file (.bmp) by LogoGenie, the file size must

||||be 640 x 464 x 256 colors.

To enable this utility, please proceed as follows:

1. Insert software CD. Select LogoGenie from the Menu

and follow the installation instructions.

2. After LogoGenie has been installed, go to Windows Start Box.

In Programs Menu, select LogoGenie, then select LogoGenie.

3. Press F1 to read Help file to understand how to use this software if

it is new to you.

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KT-748 Mainboard Manual

n BIOS Guardian

BIOS Guardian effectively acts as a fire-wall against viruses that can at­tack the BIOS while the system is running and by default is enabled.

WARNING:

BIOS Guardian must be disabled before reflash BIOS.

NOTE:

Please read Page 3-6 for detail information.

n Easy Key

Instead of completing the multi-layered BIOS setup process these 3 Easy
Key functions provide direct access to Sub-Menu when completing BIOS
settings adjustments.

Easy-Keys are as follows:

Ctrl + c: To enter clock settings menu.
Ctrl + p: To load Performance Default settings and restart.

Ctrl + f: To load Fail-Safe Default settings and restart.

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Installation Procedures

Chapter 2

Installation Procedures

The main board has several user-adjustable jumpers on the board that allow you to
configure your system to suit your requirements. This chapter co ntains information
on the various jumper settings on your mainboard.

To set up your compu ter, you must complete the following steps:

Step 1 - Set sy stem jumpers
Step 2 - Install memory modules
Step 3 - Install the Central Processing Unit (CPU)
Step 4 - Install expansion cards
Step 5 - Connect ribbon cables, cabinet wires, and power supply
Step 6 - Set up BIOS software
Step 7 - Install supporting software tools

WARNING: Excessive torque may damage the mainboard. When
using an electric screwdriver on the mainboard, make sure that
the torque is set to the allowable range of 5.0 ~ 8.0kg/cm.

Mainboard components contain very delicate Integrated Circuit
(IC) chips. To prevent static electricity from harming any of the
sensitive components, you should follow the following precau­tions whenever working on the computer:

1. Unplug the computer when working on the inside.

2. Hold components by the edges and try not to touch the IC

||||chips, leads, or circuitry.

3. Wear an anti-static wrist s trap which fits around the wrist.

4. Place components on a grounded anti-static pad or on the bag
that came with the component whenever the c omponents are
separated from the system.

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KT-748 Mainboard Manual

1 2 3

(Clear CMOS)

1). Set System Jumpers

NOTE: Users are not encouraged to change the jumper/switch set-

tings not listed in this manual. Changing the settings improperly
may adversely affect system performance.

Clear CMOS

The CMOS RAM is p owered by the onboard button cell battery. To
clear the RTC data:
(1) Turn off your computer;
(2) open the system case, disconnect the ATX power cable;
(3) place the jumper cap onto the pinpair 2-3 at least 6 seconds to enable
CMOS clearance;
(4) place the jumper cap o nto the pinpair 1-2 to disable the effect of
CMOS clearance;
(5) connect the ATX power cable; close the system case;
(6) turn on your computer until CMOS checksum error appears;
(7) hold down the Delete key when boots;
(8) enter the BIOS Setup to re-enter user preferences.

2 - 2

1 2 3

Disable
(Default)

Enable

Installation Procedures

BIOS Anti-Reflash Protect

The jumper helps users to prevent the 64K boot block table area in the
BIOS ROM from being overwritten by mistake.

2). Install Memory Modules

1. Locate DDR DIMM sockets on the mainboard.

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KT-748 Mainboard Manual

2. Install DDR DIMM straight down

into the socket 1 using both hands,
then socket 2, and so forth.

3. The clip on both ends of the
socket will close up to hold the
DDR DIMM in place when the DDR
DIMM reaches the socket bottom.

3). Install the CPU

The mainboard has built-in Switching Voltage Regulator to support CPU Vcore
autodetection. That is, It has the ability to detect and recognize the CPU volt­age, clock, ratio and enables users to set up the CPU frequency from the BIOS
Setup Screen. Users can adjust the frequency through Frequency / Voltage
Control of the BIOS Setup Screen.

CAUTION:

1. The heat sink and fan you installed must be approved by AM D.

2. The mainboard must be placed on a solid place to avoid shaking

|||||while install the heat sink and fan on the board.

3. The heat sink must be contact with the CPU top tightly.

4. Never run the processor without the heat sink properly and firmly

attached. PERMANENT DAMAGE WILL RESULT!

The procedures below shows you how to install your CPU and its fan
and heatsink. First of all, locate the CPU socket on this mainboard.

2 - 4

1. Swing the lever upword to 90 degree.

2. Install the CPU and make sure the the pin 1

orientation by aligning the socket corner marking
with the socket corner closest to the lever tip.
Do not insert the CPU by force. Make sure the
processor is fully inserted into the socket on all
sides.

Apply some thermal materials, such as paste or
tape, on the CPU top; and install a fan with
heatsink that approved by CPU manufacturer
to avoid CPU damage. For detail information,
please refer to the CPU manufacturer website.

Installation Procedures

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KT-748 Mainboard Manual

Affix the CPU by pressing the lever downward
and locking it beside the socket.

3. Place the fan with heatsink on the CPU top
and press down two plastic clips to hook up
with the holes on the retention module on two
sides.

4. Press down the white bar o n each clip to
fasten the fan set on the retention module.

Connect ATX Power

The 20-hole power plug (top right) is connected
to the ATX power 20-pin pinheaders. The 4-hole
12V power plug (bottom right) is inserted in the
ATX_12V power connector.

The plug from the power supply will only insert
in one orientation because of the different hole
sizes. Find the proper orientation and push down
firmly making sure that the pins are aligned.

2 - 6

Installation Procedures

NOTE:

1. Insert the CPU (with fansink and retention module) on

socket.

2. Connect the 4-pin plug of the power s upply

3. Connect the 20-pin plug of the power supply.

To remove the process or, please do it in reverse order.

4). Install Expansion Cards

This section describes h ow to connect an expansion card to one of your
system expansion slots.

Exp ansion cards are printed circuit boards that, when connected to the
mainboard, increase the capabilities of your system.

For example, expansion cards can provide video and sound capabilities. The
mainboard features one AGP and five PCI bus expansion slots.

CAUTION:

1.Make sure to unplug the power supply when adding or removing

expansion c ards or other system components. Failure to do so
may cause severe damage to both the mainboard and expansion
cards.

2. Always observe static electricity precautions.

3. Please read Handling Precautions at the start of this manual.

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KT-748 Mainboard Manual

1. Select an available expansion slot.

2. Remove the corresponding slot cover fro m the computer chassis. Un-

screw the mounting screw that secures the slot cover and pull the slot cover
out from the computer chassis. Keep the slot cover mounting screw nearby.

3. Push the card firmly into the slot.
Push down on one end of the expan­sion card, then the other. Use this rock­ing mo tion until them card is firmly
seated inside the expansion slot. Se­cure the card with the screw removed
in Step 2.

2 - 8

Installation Procedures

5). Connect Devices

Floppy Diskette Drive Connector

This connector provides the connection with your floppy disk drive.

Insert the floppy ribbon cable
(below) onto the floppy connector.

The colored stripe (indicated by the
arrow head, right) of the ribbon cable
must be the same side with the Pin 1.

IDE Device Connectors

The two connectors, PRIMARY
and SECONDARY, are used for
your IDE hard disk drives, CD drives,
LS-120|drives, or IDE ZIP drives.

Insert the floppy ribbon cable
(below) onto the floppy connector.

The colored stripe (indicated by the
arrow head, right) of the ribbon cable
must be the same side with the Pin 1.

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KT-748 Mainboard Manual

Fan Connectors

The two connectors, CPU_ FAN, SYSTEM_FAN are linked to the CPU fan,
case fan, respectively. CHIP_FAN can be used with North Bridge chip fan.

Power Connectors

The 20-pin male block connector is connected to the ATX power supply. The
4-pin male block connector is for the ATX_12V power use. All two connectors
are linked with your ATX power supply. The plug from the power supply will
only insert in one orientation because of the different hole sizes. Find the
proper orientation and push down firmly making sure that the pins are aligned.

2 - 10

Front Panel Block
Connector

This block connector includes
the connectors for linking with
Power LED (3-pin), HDD LED,
po wer button, power/sleep/
message waiting button, reset
buttonon the front panel of the
system case. Please identify
polarities of plug wires for the
case speaker and LEDs. Please
ask vendor about this informa­tion when you buy them and
install the system by yourself.
The plu g wires polarities of
these buttons will no t affect
the function.

Installation Procedures

NOTE: Us ers that want to use IR port must adjust BIOS feature
UART Mode Select to set COM2 at some IR mode upon your IR

device.

(1) Reset Switch is connected to the reset button. Push this switch to reboot
the system instead of turning the power button off and on.

(2) HDD LED is connected to the IDE device indicator. This LED will blink
when the hard disk drives are activated.

(3) Power (Single and Dual) /Sleep LED

Please refer to the tables below for the representations of LED states.
There is another 3-Pin Power LED connector on board for some cases that with
a 3-pin plug.

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KT-748 Mainboard Manual

(4) Power Button is connected with power button. Push this switch allows the
system to be turned o n and off rather than using the power supply button.

IR is a pinheader that is used for linking with your ID device to allow transmis­sion of data to another system that also supports the IR feature.

Speaker is connected with the case speaker.

SPDIF_IN/SPDIF_OUT Connector

It is used for audio input and output that with SPDIF spec.
Pin definitions: Pin1 is 5V, Pin2 is SPDIF signal, P3 is GND.

2 - 12

Installation Procedures

CD Audio-In Connectors

The two 1x4 connectors, CD_IN and AUX_IN, are for CD-ROM drive audio
analog input use. The pin assignment are: Pin 1 is Left, Pin2 and 3 are GND, Pin
4 is Right.

1394 Connectors (optional)

The 2 optional 1394 pinheaders on the board provides you with two connec­tions with the peripherals which own 1394 connectors by an optional bracket
with cable (see the figure below). The pin definitions of the 1394 pinheaders
are listed below also.

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KT-748 Mainboard Manual

PS/2 Keyboard and Mouse Connector

These two 6-pin female (PS/2 keyboard is purple color and PS/2 mouse is green
color) connectors are used for your PS/2 keyboard and PS/2 mouse.

RJ45 LAN Connector

The LAN (RJ45 port) jack is used for the LAN cable plug.

2 - 14

Installation Procedures

Serial Port Connectors

COM1/2 (9-pin D-sub male connector with teal color) allow you to connect
with your devices that use serial ports, such as a serial mouse or an external
modem.

Printer Connector

This 25-pin D-Sub female burgundy-colored connector is attached to your
printer.

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KT-748 Mainboard Manual

Audio I/O Jacks

LINE_OUT (lime) can be connected to headphones or p referably powered
speakers. LINE_IN (light blue) allows tape players or other audio sources to
be recorded by your co mputer or played through the LINE_OUT. MIC_IN
(pink) allows microphones to be connected for audio input.

Front Audio Connector

The mainboard has a front panel
audio F_AUDIO connector
(Intel spec.). It allows users to
attach the audio device via front
panel (instead of rear panel) by a
ribbon cable that in some cases.
Its pin definitions are resented
below.

2 - 16

NOTE: If you do not use F_AUDIO, please keep the pinpair 5-6, 9-10
short as default; also, when the front headphone is plugged in,
the rear audio output will be disabled.

Installation Procedures

NOTE: The LINE_IN, LINE_OUT, MICROPHONE jacks can be used
the 5.1-channel audio output with its software tool.
For details, please read the FAQ on the web site www.fic.com.tw.

Universal Serial Bus Connectors

The mainbaord have six USB ports; four USB black jacks that integrated on
the edge of the board, the other two USB ports on the board. They allows uses
to attach with USB devices either from rear or front panels. The USB cabe that
comes with your mainboard is used to connecting between the USB pinheaders
and rear panel. (See the photo below).

The figure below is the pin
assignments of the USB4_5.

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KT-748 Mainboard Manual

5.1 Audio Channel Feature

The 5_1_AUDIO sound feature are offered via the pinheaders with an optional
A73 bracket with ribbon cable. The pinheaders pin assignments are sho wn
below left.

When use the daughter board,
plug in the LINE_OUT jack for
the front speaker audio ou tput
(right and left).

NOTE: If you do not have A73 bracket, the LINE_IN, LINE_OUT,
MICROPHONE jacks c an be used the 5.1-channel audio output
with its s oftware tool.

2 - 18

BIOS Setup

Chapter 3

BIOS Setup

The mainboard comes with the chip that Award BIOS that contains the ROM
Setup information of your system. (This chip serves as an interface between
the p rocessor and the rest of the mainboard components.) This section ex­plains the information contained in the Setup program and tells you how to
modify the settings according to your system configuration.

CMOS Setup Util ity

The Setup utility program allows updates to the mainboard configuration set­tings. The BIOS setup values will be saved in the CMOS. It is executed when
the user changes system configuration; user changes system backup battery;
or the system detects a configuration error and asks the user to run the Setup
program. Use the arrow k eys to select and press Enter to run the selected
program.

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KT-748 Mainboard Manual

Standar d CMOS Setup

The Standard CMOS Setup screen is displayed above. Each item may have
one or more option settings. The system BIOS automatically detects memory
size, thus no changes are necessary. Use the arrow keys to highlight the item
and then use PgUp or PgDn keys to select the value you want in each item.

Date

To set the date, highlight the Date field and then press Page Up/Page Down
or +/- keys to set the current date. Follow the month, day and year format.

Time

To set the time, highlight the Time field and then press Page Up/Page Down
or +/- keys to set the current time. Follo w the hour, minute, and second
format.

3 - 2

BIOS Setup

Hard Disks

This field records the specifications for all non-SCSI hard drives installed
in the system. The onboard PCI IDE connectors provide Primary and Sec­ondary channels for connecting up to four IDE hard d isks or other IDE
devices. Each channel can support up to two hard disks, the first of which
is the Master and the second is the Sla ve.

Hard Disk Configurations

Capacity: The hard disk size. The unit is Bytes.
Cylinder: The cylinder number of the hard disk.
Head: The read/write head number of hard disk.
Precomp: The cylinder number at which the disk drive

changes the write current.

Landing Zone: The cylinder number that the disk drive heads

(read/write) are seated when the disk drive is
parked.

Sector: The sector number of each track defined on the

hard disk.

Drive A / Drive B

This field records the types of floppy drives installed in the system. To
enter the configuration value for a particular drive, highlight its corre­sponding field and then select the drive type using the left- or right-arrow
key.

Floppy 3 Mode Support

This is a Japanese standard floppy type drive. The standard stores 1.2MB
in a 3.5 inch diskette.

Video

Set this field to the type of video display card installed in the system.

Halt On

This field determines which types of errors will cause the system to halt.

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KT-748 Mainboard Manual

Advanced BIOS Features

Virus Warning

This feature starts the virus scan tool to detect if boot virus in boot sector
of the first hard disk drive when booting up.
The options are: Enabled, Disabled.

CPU Internal Cache

This controls the status of the pro cessor’s internal cache area. The de­fault is Enabled. The options are: Enabled, Disabled.

External Cache

This controls the status o f the external (L2) cache area. The default is
Enabled. The options are: Enabled, Disabled.

Quick Power On Self Test

When enabled, allows the BIOS to bypass the extensive memory test.
The options are: Enabled, Disabled.

First/Second/Third Boot Device

This feature allows user to select the boot device priority. The options are:
Floppy, LS120, HDD-0, SCSI, CDROM, HDD-1, HDD-2, HDD-3, ZIP100,
LAN, Disabled.

3 - 4

BIOS Setup

Boot Other Device

Enable the system to boot from other devices if the system fails to boot
from the devices that selected from above three features.
The options are: Enabled, Disabled.

Swap Floppy Drive

Allows you to switch the ord er in which the operating system accesses
the floppy drives during boot up.
The options are: Enabled, Disabled.

Boot Up Numlock Status

When set to On, allows the BIOS to automatically enable the Num Lock
Function when the system boots up. The options are: On, Off.

Typematic Rate Setting

The term typematic means that when a keybo ard key is held down, the
character is repeatedly entered until the key is released.
The options are: Disabled, Enabled.

Typematic Rate (Chars/Sec)

This feature is available only if the above item, Typematic Rate Setting, is
set at Enabled. Sets the rate of a character repeat when the key is held
down. The options are: 6, 8, 10, 12, 15, 20, 24, 30.

Typematic Delay (Msec)

This feature is available only if the item, Typematic Rate Setting, is set at
Enabled. Sets the delay time before a character is repeated.
The options are: 250, 500, 750, 1000 millisecond.

Security Option

Allows to set the security level of the system.The options: Setup, System.

APIC Mode

Allows you to decide if the system enters the APIC (Advanced Program­mable Interrupt Controller) mode or not for more IRQs can be released.
The options are: Enabled, Disabled.

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KT-748 Mainboard Manual

MPS Version Control For OS

When two CPUs onboard (not this board) this feature allows you to select
MPS (Mu lti-Processor Spec.) version control for OS when logo test
executes. The options are: 1.1, 1.4.

OS Select For DRAM > 64MB

If your operating system (OS) is OS/2, select the option OS2. Otherwise,
stay with the default setting Non-OS2.The options are: Non-OS2, OS2.

HDD S.M.A.R.T. Capability

S.M.A.R.T. stands for Self-Monitoring and Analysis Reporting Technol­ogy which allows your hard disk drive to report any read/write errors and
issues a warning with LDCM installed. The options: Disabled, Enabled.

Report No FDD For WIN 95

When the field under the Standard CMOS Setup Menu for Drive A and/or
Drive B is set at None, users must set this field is set at Yes for it to function
properly. Otherwise, set at No, even if field for Drive A and/or Drive B is set
at None, system will still detect and recognize of a floppy drive(s).
The options are: Yes, No.

Video BIOS Shadow

Enabling this feature will copy the video BIOS to shadow RAM, it will
improve the system performance. The options are: Enabled, Disabled.

BIOS Guardian

It allows the system to prevent computer viruses. Users will need to dis­able it to update BIOS. The options are: Enabled, Disabled.

NOTE: Please disable this BIOS feature about BIOS Guardian
before you start to reflash BIOS.

BIOS Guardian and Reflash BIOS

BIOS Guardian by default is enabled, thus effectively acts as a fire­wall against viruses that can attack the BIOS while the system is
running. It must be disabled before reflash BIOS.

3 - 6

BIOS Setup

The steps below show you how to off and on BIOS Guardian when
reflash BIOS:

1. Press Del key while booting. Go to CMOS Setup Utility menu.

2. Go to Advanced BIOS Features submenu.

3. Set the feature BIOS Guardian at Disabled.

4. Save the setting and exit. The system restarts.

5. POST screen holds. A message about BIOS Guardian shows.

6. Press Space bar.

7. Reflash BIOS. Restart the system after complete it.

8. POST screen holds. A message about BIOS Guardian shows.

9. Press G key. The feature BIOS Guardian will be enabled again.

Full Screen LOGO Show

It decides whether or no t the full screen logo is shown during system
booting up. The options are: Enabled, Disabled.

Advanced Chipset Features

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KT-748 Mainboard Manual

Advanced DRAM Control 1

Auto Configuration

The feature allows users to decide the performance of the memory CAS/
LAS cycle. The options are: Normal, Performance.

DDR SDRAM CAS Latency

This feature allows users to set the DDR SDRAM CAS latency timing
cycle, when the above feature set at Performance.
The options are: Auto, 2.0T, 2.5T, 3.0T.

CPU/DRAM Bypass Ctrl

The item Auto allows the memory access latency of those requests which
are from Host may be reduced in certain condition detected automatically.
When set at Disabled, this function will not work.
The options are: Auto, Disabled.

AGP Aperture Size

This item defines the size of the aperture if yo u use an AGP graphics
adapter. It refers to a section o f the PCI memory address range used for
graphics memory. The options are: 4 MB, 8 MB, 16 MB, 32 MB, 64 MB, 128
MB, 256 MB, 512 MB.

AGP Fast Write Support

This feature allows you to disabled AGP fast write mode.
The options are: Disabled, Enabled.

AGP Data Transfer Rate

This item allows users to decide the AGP data transfer rate.
The options are: Auto, 1X, 2X, 4X.

System BIOS Cacheable

Setting at Enabled will allow the caching of the BIOS ROM F0000H-FFFFFH,
resulting in better system performance. It may cause system error when
some programd try to access the memory area.
The options are: Disabled, Enabled.

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Video RAM Cacheable

When enabled, allows the video RAM area to be cacheable.
The options are: Enabled, Disabled.

Integrated Per ipherals

BIOS Setup

SIS OnChip IDE Device

Internal PCI/IDE

This item allows users to disable either or both PCI and IDE channels.
The options are: Disabled, Primary, Secondary, Both.

IDE Primary Master/Slave PIO

It allows an automatic or a manual configuration of the PCI primary IDE
hard drive (master/slave) mode.
The options are: Auto, Mode 0, Mode 1, Mode 2, Mode 3, Mode 4.

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KT-748 Mainboard Manual

IDE Secondary Master/Slave PIO

Allows an automatic or a manual configuration of the PCI secondary IDE
hard drive (master/slave) mode.
The options are: Auto, Mode 0, Mode 1, Mode 2, Mode 3, Mode 4.

Primary Master/Slave UDMA

Allows you to select the first PCI IDE channel of the first master/slave hard
disk mode or to detect it by the BIOS if the hard disk supports UDMA
(Ultra DMA, faster than DMA). The options are: Auto, Disabled.

Secondary Master/Slave UDMA

Allows you to select the second PCI IDE channel of the secondary master/
slave hard disk mode or to detect it by the BIOS if the hard disk supports
UDMA (Ultra DMA, faster than DMA). The options are: Auto, Disabled.

IDE Burst Mode

Allows you to disable the IDE channel burst mode.
The options are: Enabled, Disabled.

SIS OnChip PCI Device

SIS USB Controller

Disable this option if you are not using the onboard USB feature.
The options are: Disabled, Enabled.

USB 2.0 Support

Disable this option if you are not using the onboard USB 2.0 feature (USB

1.1 not effected). The options are: Disabled, Enabled.

USB Keyboard Support

When a USB keyboard is installed, please set at Enabled.
The options are: Disabled, Enabled.

Onboard SuperIO Device

Onboard FDC Controller

When enabled, the floppy diskette drive (FDD) controller is activated.
The options are: Enabled, Disabled.

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BIOS Setup

Onboard Serial Port 1/2

If the serial port 1/2 uses the onboard I/O controller, you can modify your
serial port parameters.The options are: 3F8/IRQ4, 3E8/IRQ4, 2F8/IRQ3, 2E8/
IRQ3, Disabled.

UART Mode Select

Allows you to select the IR modes if the serial port 2 is used as an IR port.
Set at Standard, if you use COM2 as the serial port as the serial port,
instead as an IR port. The options are: Normal, IrDA, ASKIR, SCR.

UR2 Duplex Mode

Allows you to select the IR modes. The options are: Half, Full.

Onboard Parallel Port

Allows you to select from a given set of parameters if the parallel port uses
the onboard I/O controller.
The options are: Disabled, 378/IRQ7, 278/IRQ5, 3BC/IRQ7.

Parallel Port Mode

Allows you to connect with an advanced printer via the port mode it sup­ports. The options are: SPP, EPP, ECP, ECP+EPP.

ECP Mode Use DMA

This feature allows you to select Direct Memory Access (DMA) channel if
the ECP mode selected. The options are: 1, 3.

Onboard Lan Device

This feature allows users to enable or disable the onboard Lan device.
The options are: Enabled, Disabled.

Onboard Lan Boot ROM

This feature allows users to enable or disable the onboard Lan boot ROM
to boot system. The options are: Enabled, Disabled.

Init Display First

When you install a PCI VGA card on the board, this feature allows you to
select the first initiation of the monitor display from PCI or onboard AGP.
The options are: PCI Slot, AGP.

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KT-748 Mainboard Manual

Onboard 1394 Device

It allows users to disable the onboard 1394 feature.
The options are: Enabled, Disabled.

AC97 AUDIO

This feature auto detects if you use a card that with a CODEC to enable or
disable the AC97 audio function. The options are: Enabled, Disabled.

IDE HDD Block Mode

Block mode is also called block transfer, multiple commands, or multiple
sector read/write. If your IDE hard drive supports block mode (most new
drives do), select Enabled for automatic detection of the optimal number of
block read/writes per sector the drive can support.
The options are: Enabled, Disabled.

Power Management Setup

ACPI function

This item allows you to disable the ACPI function.
The options are: Enabled, Disabled.

ACPI Suspend Type

This item allows you to select ACPI suspend types.
The options are: S1(POS), S3 (STR), S1&S3.

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BIOS Setup

Power Management

This item allows you to adjust the power management features.
Select User Define for configuring your own power management features.

Min Saving initiates all predefined timers in their minimum values. Max
Saving, on the other hand, initiates maximum values. The options are: User

Define, Min Saving, Max Saving.

Suspend Mode

When disabled, the system will not enter Suspend mode. The specified
time option defines the idle time the system takes before it enters Suspend
mode. The options are: Disable, 1, 2, 4, 6, 8, 10, 20, 30, 40 Min, 1 Hour.

Video Off Option

This feature p rovides the selections of the video display power saving
mode. The option Suspend - >Off allows the video display to go blank if
the system enters Suspend mode. The option All Modes -> Off allows the
video disp lay to go blank if the system enters Doze mode or Suspend
mode. The option Always On allows the video display to stay in Standby
mode even when the system enters Doze or Suspend mode.
The options are: Suspend -> Off, All Modes -> Off, Always On.

Video Off Method

The option V/H SYNC+Blank allows the BIOS to blank off screen display
by turning off the V-Sync and H-Sync signals sent from add-on VGA card.
DPMS Supported allows the BIOS to blank off screen display by your add­on VGA card which supports DPMS (Display Power Management Signal­ing function). Blank Screen allows the BIOS to blank off screen display by
turning off the red-green-blue signals.
The options are: V/H SYNC+Blank, DPMS Supported, Blank Screen.

MODEM Use IRQ

This feature allows you to select the IRQ# to meet your modem IRQ#.
The options are: NA, 3, 4, 5, 7, 9, 10, 11.

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KT-748 Mainboard Manual

HDD Off After

The option lets the BIOS turn the HDD motor off when system is in Sus­pend mode. Selecting 1 Min..15 Min allows you define the HDD idle time
before the HDD enters the Power Saving Mode.
The options 1 Min..15 Min will not work concurrently. When HDD is in the
Power Saving Mode, any access to the HDD will wake the HDD up.
The options are: Disable, 1 Min..15 Min.

Power Button Override

The selection Delay 4 Sec. will allow the system shut down after 4 seconds
after the power button is pressed. The selection Instant-Off will allow the
system shut down immediately once the power button is pressed.
The settings are: Instant-Off, Delay 4 Sec.

Power State Resume Control

The item allows you to select the state that your personal computer re­turns to after a power failure.
The settings are: Keep Pre-State, Always Off, Always On.

PM Wake Up Events

IRQ[3-7,9-15], NMI

Enable this feature will keep the system not in the Suspend mode when
IRQ3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, NMI.
The options are: Enabled, Disabled.

IRQ 8 Break Suspend

Enable this feature will make IRQ8 to resume the system from Suspend
mode. The options are: Enabled, Disabled.

RING Power Up Control

An incoming call via modem awakes the system from its soft-off mode.
The options are Disabled, Enabled.

PCIPME Power Up Control

When set at Enabled, a Power Management Event (PME) come from
PCIMAC will make the system from soft-off state.
The options are Disabled, Enabled.

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BIOS Setup

Month Alarm/Day of Month Alarm/Time (hh:mm:ss) Alarm

This feature allows you to set the time of the alarm starts.

** Reload Global Timer Events **

Primary IDE

When the primary master/slave HDD is working, the system timer will be
reloaded and the system will not be into the suspend mode.
The options are: Disabled , Enabled.

Secondary IDE

When the secondary master/slave HDD is working, the system timer will
be reloaded and the system will not be into the suspend mode.
The options are: Disabled, Enabled.

FDD, COM, LPT Port

When FDD, COM, or LPT is working, the system timer will be reloaded and
the system will not be into the suspend mode.
The options are: Disabled, Enabled.

PCI PIRQ[A-D]#

When the PCI PIRQ[A-D]# has been alerted, the system timer will be re­loaded and the system will not be into the suspend mode.
The options are: Disabled, Enabled.

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KT-748 Mainboard Manual

PnP/PCI Configurations

Reset Configuration Data

Enabling it to reset the system Extended System Configuration Data (ESCD)
when you ex it Setup if you have installed a new add-on card and the
system reconfiguration has caused such a serious conflict that the operat­ing system can not boot. The options are: Disabled, Enabled.

Resources Controlled By

If set at Auto(ES CD), the BIOS arranges all system resources. If there
exists conflict, select Manual. The options are: Auto (ESCD), Manual.
If the manual optio n is selected, after the featrue IRQ Resources being
pressed, of IRQ- Assigned To are: PCI Device, Reserved. When resources
were controlled manually, assign each system interrupt a type, depending
on each device type to use the interrupt.

PCI/VGA Palette Snoop

Set this feature to be enabled if any ISA adapter card installed in the system
requires the VGA palette snoop function.
The options are: Disabled, Enabled.

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BIOS Setup

PC Health Status

Shutdown Temperature

This feature helps to shutdown the system when the system temperature
is as high as the selected temperature to prevent from the overheat problem.
The option list presents all the temperatures that supported b y the board
and Disabled.

VCORE / 3.3V / +5V / +12V / -12V / Voltage Battery / CPU Temperature
/ SYSTEM Temperature / CPU FAN / SYSTEM FAN

These items allow end users and technicians to monitor data provided by
the BIOS on this mainboard. It is not user-configurable.

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KT-748 Mainboard Manual

Frequency/Voltage Contr ol

Auto Detect DIMM/PCI Clk

When enabled, BIOS will detect the PCI slot and DIMM slo t. If no any
device in, BIOS will auto disable its clock.
The options are: Enabled, Disabled.

Spread Spectrum

This item reduces the EMI (Electromagnetic Interference) generated by
modulating the pulses so that the spikesof the pulses are reduced to flatter
curves. If you do not have EMI problems, set it at Disabled for optimal
systme stability and performance. Set at Enabled for EMI reduction. Please
set at Disabled if you are overclo cking because even a 0.25% jitter can
introduce a temporary boost in clockspeed of 25MHz (with a 1GHz CPU)
which may just cause your overclocked CPU to lock up.
The options are: Disabled, Enabled.

CPU Frequency

This feature allo ws you to select the CPU clock frequency. The default
setting, Default, will detect your CPU clock frequency automatically. If you
set a unappropriate option which leads to a booting problem, keep press­ing the Insert key until the display appears will solve it. The options lists
all provided by the system BIOS.

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BIOS Setup

Load Fai l-Safe Defaults

This submenu is selected to diagnose the problem after the computer boots, if
the computer will not boot. These settings do not give optimal performance.

Load Optimi zed Defaults

This submenu is selected for default settings which provide the best system
performance.

Set Password

To enable the Supervisor/User passwords, select the item from the Standard
CMOS Setup. You will be prompted to create your own password. Type your
password up to eight characters and press Enter. You will be asked to confirm
the password. Type the password again and press Enter. To disable password,
press Enter twice when you are pro mpted to enter a password. A message
appears, confirming the password is disabled.

Under the BIOS Feature Setup, if Setup is selected under the Security Option
field and the Supervisor/User Password is enabled, you will be prompted pass­word every time you try to enter the CMOS Setup Utility. If System is selected
and the Supervisor/User Password is enabled, you will be requested to enter
the Password every time when you reboot the system or enter the CMOS
Setup utility.

Save and Exit Setup

After you have made changes under Setup, press Esc to return to the main
menu. Move cursor to Save and Exit Setup or press F10 and then press Y to
change the CMOS Setup. If you did not change anything, press Esc again or
move cursor to Exit Without Saving and press Y to retain the Setup settings.
The following message will appear at the center of the screen to allow you to
save data to CMOS and exit the setup utility: SAVE to CMOS and EXIT (Y/N)?

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KT-748 Mainboard Manual

Exit without Saving

If you select this feature, the following message will appear at the center of the
screen to allow you to exit the setup utility without saving CMOS modifications:

Quit Without Saving (Y/N)?

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