MSI 661FM-L, MS-6540G, G52-M6540G3 User Manual

i

G52-M6540G3

661FM Series

MS-6540G (v2.X) Micro ATX Mainboard

ii

Manual Rev: 2.2
Release Date: March 2004

FCC-B Radio Frequency Interference Statement

This equipment has been tested and found to comply with the limits for a class
B digital device, pursuant to part 15 of the FCC rules. These limits are designed
to provide reasonable protection against harmful interference when the equip­ment is operated in a commercial environment. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accor­dance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to
cause harmful interference, in which case the user will be required to correct
the interference at his own expense.

Notice 1

The changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate the equipment.

Notice 2

Shielded interface cables and A.C. power cord, if any, must be used in order to
comply with the emission limits.

VOIR LA NOTICE D’INSTALLATION AVANT DE RACCORDER AU RESEAU.

Micro-Star International
MS-6540G

iii

Copyright Notice

The material in this document is the intellectual property of MICRO-STAR
INTERNATIONAL. We take every care in the preparation of this document,

but no guarantee is given as to the correctness of its contents. Our products
are under continual improvement and we reserve the right to make changes
without notice.

Trademarks

All trademarks are the properties of their respective owners.
AMD, Athlon™ , Athlon™ XP, Thoroughbred™ , and Duron™ are registered

trademarks of AMD Corporation.
Intel® and Pentium® are registered trademarks of Intel Corporation.
PS/2 and OS®/2 are registered trademarks of International Business Machines
Corporation.
Microsoft is a registered trademark of Microsoft Corporation. Windows® 98/
2000/NT/XP are registered trademarks of Microsoft Corporation.
NVIDIA, the NVIDIA logo, DualNet, and nForce are registered trademarks or
trademarks of NVIDIA Corporation in the United States and/or other countries.
Netware® is a registered trademark of Novell, Inc.
Award® is a registered trademark of Phoenix Technologies Ltd.
AMI® is a registered trademark of American Megatrends Inc.
Kensington and MicroSaver are registered trademarks of the Kensington Tech­nology Group.
PCMCIA and CardBus are registered trademarks of the Personal Computer
Memory Card International Association.

Revision History

Revision Revision History Date

V2.0 First release for PCB 2.x with September 2003

chipsets SiS661FX & SiS963/963L
V2.1 Special Edition for White Brand October 2003
V2.2 Modify CPU spec. and BIOS March 2004

iv

1. Always read the safety instructions carefully.

2. Keep this User’s Manual for future reference.

3. Keep this equipment away from humidity.

4. Lay this equipment on a reliable flat surface before setting it up.

5. The openings on the enclosure are for air convection hence protects the

equipment from overheating. Do not cover the openings.

6. Make sure the voltage of the power source and adjust properly 110/220V
before connecting the equipment to the power inlet.

7. Place the power cord such a way that people can not step on it. Do not
place anything over the power cord.

8. Always Unplug the Power Cord before inserting any add-on card or module.

9. All cautions and warnings on the equipment should be noted.

10. Never pour any liquid into the opening that could damage or cause electrical
shock.

11. If any of the following situations arises, get the equipment checked by a
service personnel:

† The power cord or plug is damaged.
† Liquid has penetrated into the equipment.
† The equipment has been exposed to moisture.
† The equipment has not work well or you can not get it work according

to User’s Manual.

† The equipment has dropped and damaged.
† The equipment has obvious sign of breakage.

12. Do not leave this equipment in an environment unconditioned, storage
temperature above 600 C (1400F), it may damage the equipment.

Safety Instructions

CAUTION: Danger of explosion if battery is incorrectly replaced.

Replace only with the same or equivalent type recommended by the
manufacturer.

v

CONTENTS

FCC-B Radio Frequency Interference Statement ......................................... ii

Copyright Notice ......................................................................................iii

Revision History ......................................................................................iii

Safety Instructions .................................................................................. iv

Chapter 1. Getting Started .................................................................... 1-1

Mainboard Specifications .................................................................1-2

Mainboard Layout ...........................................................................1-4

MSI Special Features........................................................................1-5

Live BIOS™ /Live Driver™ .........................................................1-6

Live Monitor™ ..........................................................................1-7

Color Management ....................................................................1-8

Chapter 2. Hardware Setup ................................................................... 2-1

Quick Components Guide .................................................................2-2

Central Processing Unit: CPU ...........................................................2-3

CPU Core Speed Derivation Procedure........................................2-3

Memory Speed/CPU FSB Support Matrix....................................2-3

CPU Installation Procedures for Socket 478 ................................2-4

Installing the CPU Fan ...............................................................2-5

Memory...........................................................................................2-7

Introduction to DDR SDRAM.....................................................2-7

DDR Module Combination .........................................................2-8

Installing DDR Modules.............................................................2-8

Power Supply...................................................................................2-9

ATX 20-Pin Power Connector: CONN1 .......................................2-9

ATX 12V Power Connector: JPW1..............................................2-9

Back Panel ..................................................................................... 2-10

Mouse Connector.................................................................... 2-10

Keyboard Connector ............................................................... 2-11

USB Connectors ...................................................................... 2-11

vi

Serial Port Connector: COMA ..................................................2-12

VGA Connector ........................................................................ 2-12

IEEE 1394 Port (Optional) ......................................................... 2-12

RJ-45 LAN Jack (Optional) .......................................................2-13

Audio Port Connectors ............................................................ 2-13

Parallel Port Connector: LPT1 ................................................... 2-14

Connectors ....................................................................................2-15

Floppy Disk Drive Connector: FDD1.......................................... 2-15

Fan Power Connectors: CPUFAN1/SYSFAN1............................ 2-15

Hard Disk Connectors: IDE1 & IDE2 ......................................... 2-16

IEEE 1394 Connector: J1394_1 (Optional) .................................. 2-17

Chassis Intrusion Switch Connector: JCI1 ................................2-18

Front Panel Connectors: JFP1 ................................................... 2-18

CD-In Connector: JCD1............................................................ 2-19

Front Panel Audio Connector: JAUD1 ...................................... 2-19

Front USB Connectors: JUSB1 .................................................2-20

SPDIF Connector: JSP1 ............................................................ 2-20

Jumpers ......................................................................................... 2-21

Clear CMOS Jumper: JBAT1..................................................... 2-21

Slots .............................................................................................. 2-22

AGP (Accelerated Graphics Port) Slot....................................... 2-22

PCI (Peripheral Component Interconnect) Slots ........................2-22

CNR Slot.................................................................................. 2-22

PCI Interrupt Request Routing .................................................2-23

Chapter 3. BIOS Setup.......................................................................... 3-1

Entering Setup .................................................................................3-2

Control Keys .............................................................................3-2

Getting Help ..............................................................................3-3

The Main Menu ...............................................................................3-4

Standard CMOS Features .................................................................3-6

vii

Advanced BIOS Features .................................................................3-8

Advanced Chipset Features............................................................ 3-12

Integrated Peripherals ....................................................................3-15

Power Management Setup ..............................................................3-19

PNP/PCI Configurations ................................................................. 3-23

PC Health....................................................................................... 3-25

Frequency/Voltage Control ............................................................. 3-27

Load Fail-Safe/Optimized Defaults ................................................... 3-28

Set Supervisor/User Password........................................................ 3-29

Appendix: Using 4- or 6-Channel Audio Function.................................. A-1

Installing the Audio Driver.............................................................. A-2

Installation for Windows 98SE/ME/2000/XP ............................. A-2

Using 4- or 6-Channel Audio Function ............................................ A-4

Using the Back Panel ............................................................... A-4

Testing the Connected Speakers..................................................... A-9

Testing Each Speaker ............................................................... A-9

Playing KaraOK ............................................................................ A-11

Playing KaraOK......................................................................A-11

1-1

Hardware Setup

Thank you for purchasing 661FM Series (MS-6540G

v2.X) Micro ATX mainboard. The 661FM series is based on
SiS® 661FX & SiS® 963/963L chipsets and provides 6 USB

2.0 ports for high-speed data transmission. With all these
special designs, the 661FM series delivers a high perfor­mance and professional desktop platform solution.

Getting Started

1-2

MS-6540G Micro ATX Mainboard

Mainboard Specifications

CPU

† Socket 478 for P4 Celeron/Northwood CPU with FSB400/533/800MHz up to

2.8GHz.

† Socket 478 for P4 Prescott CPU with FSB533/800MHz .

(For the latest information about CPU, please visit http://www.msi.com.tw/program/
products/mainboard/mbd/pro_mbd_cpu_support.php )

Chipset

† SiS ® 661FX

- Supports Intel Pentium 4 processors with data transfer rate up to
800MHz

- Supports Hyper-Threading technology

- Supports 64-bit high performance DDR400/DDR333/DDR266 memory
controller

- Supports high performance & high quality 3D Graphic Accelerator

- Supports AGP 8x/4x interface

- Supports bi-directional 16-bit data bus with 1GHz bandwidth MuTIOL

† SiS

®

963/963L (Optional)

- Supports high throughput SiS® MuTIOL 1GHz interconnecting to SiS

®

963/963L media I/O

- Supports Dual IDE ATA 66/100/133

- Integrated audio controller with AC97 interface

- Low pin count interface for SIO

- Advanced power management and PC2001 compliance

- High speed USB 2.0 controller, 480Mb/s

- Integrated IEEE 1394 host controller (963 only)

Main Memory

† Supports two memory banks using two 184-pin unbuffered DDR DIMMs.
† Supports up to 2GB memory size without ECC.
† Supports DDR266/333/400.

(For the updated supporting memory modules, please visit http://www.msi.com.tw/
program/products/mainboard/mbd/pro_mbd_trp_list.php )

Slots

† One 8x/4x AGP (Accelerated Graphics Port) universal slot.
† Three PCI 2.2 32-bit Master PCI Bus slots.

1-3

Hardware Setup

† One CNR slot.

On-Board IDE

† Dual IDE controllers integrated in SiS

®

963/963L.

† Support Bus Master, Ultra DMA 66/100/133 operation modes.
† Can connect up to four IDE devices.

On-Board Peripherals

† On-Board Peripherals include:

- 1 floppy port supports 2 FDDs with 360K, 720K, 1.2M, 1.44M and 2.88
Mbytes.

- 1 serial port (COMA) and 1 VGA port

- 1 PS2 keyboard + PS2 mouse connectors

- 1 parallel port supports SPP/EPP/ECP mode

- 6 high speed USB 2.0/1.1 ports (Rear * 4 / Front * 2)

- 1 audio (Line-In/Line-Out/Mic-In) port

- 1 SPDIF-Out pinheader

- 1 RJ-45 LAN connector (Optional)

- 2 IEEE 1394 ports (Real * 1/ Front * 1 with pinheader) (Optional)

Audio

† AC97 link controller integrated in SiS® 963/963L.
† 6 channels S/W audio codec Realtek ALC655 codec

- Compliance with AC97 2.2 Spec

- Meets PC2001 audio performance requirement

- Can support SPDIF out via a 3-pin SPDIF-Out pinheader.

LAN (Optional)

† Fast Ethernet integrated in SiS® 963/963L.
† Realtek 8201B LAN PHY.
† IEEE 802.3 and 802.3x Standard Compatible
† Supports ACPI v1.0b and PCI power management v1.1 Standard

BIOS

† 2MB Award BIOS with PNP BIOS, ACPI, SMBIOS 2.3, Green and Boot Block.
† Provides DMI 2.0, WFM 2.0, WOL, WOR, chassis intrusion, and SMBus for

system management.

Dimension

† Micro-ATX Form Factor: 24.5 cm (L) x 23.5 cm (W).

Mounting

† 6 mounting holes.

1-4

MS-6540G Micro ATX Mainboard

Mainboard Layout

661FM Series (MS-6540G) v2.X Micro ATX Mainboard

BATT

+

SiS

963/963L

DIMM 1DIMM

2

JAUD1

JCD1

JSP1

JFP1

JUSB1

ATX

P

owe

r

S

u

ppl

y

SYSFAN1

C

P

U

F

A

N

1

JBAT1

BIOS

PCI Slot 3

PCI Slot 2

PCI Slot 1

IDE 1

I

D

E

2

CNR

J1394_1
(Optional)

Top : Parallel Port
Bottom:

COM A
VGA port

Top : mouse
Bottom: keyboard

Top: LAN Jack (Optional)
Bottom: USB
ports

Top: 1394 port (Optional)
Bottom: USB ports

Codec

Realtek
8201BL

Realtek

8801B

JPW1

Line-In
Line-Out
Mic

FDD 1

JCI1

Winbond

W83627HF

SiS

661FX

AGP Slot

1-5

Hardware Setup

PC Alert™ 4

The PC AlertTM 4 is a utility you can find in the CD-ROM disk. The utility
is just like your PC doctor that can detect the following PC hardware status
during real time operation:

ö monitor CPU & system temperatures
ö monitor fan speeds
ö monitor system voltages

If one of the items above is abnormal, the program main screen will be
immediately shown on the screen, with the abnormal item highlighted in red.
This will continue to be shown until the condition returns to the normal status.

Users can use the Adjusting Keys to change the minimum and maximum
threshold of each item for the system to send out a warning message. Click
Temperature to select the temperature modes of either Fahrenheit (oF) or Cel-
sius (oC). The PC Alert4 icon on the Status Area will show the current CPU
temperature.

temperature
modes

Adjusting Keys

COOLER XP

MSI Special Features

1-6

MS-6540G Micro ATX Mainboard

Live BIOS™ /Live Driver™

The Live BIOS™ /Live Driver™ is a tool used to detect
and update your BIOS/drivers online so that you don’t need to
search for the correct BIOS/driver version throughout the Web
site. To use the function, you need to install the “MSI Live
Update 2” application. After the installation, the “MSI Live
Update 2” icon (as shown on the right) will appear on the screen.

Double click the “MSI Live Update 2” icon, and the fol­lowing screen will appear:

Five buttons are placed on the leftmost pane of the screen. Click the desired
button to start the update process.

l Live BIOS – Updates the BIOS online.
l Live Driver – Updates the drivers online.
l Live VGA BIOS – Updates the VGA BIOS online.
l Live VGA Driver – Updates the VGA driver online.

l Live Utility – Updates the utilities online.

If the product you purchased does not support any of the functions listed
above, a “sorry” message is displayed. For more information on the update
instructions, insert the companion CD and refer to the “Live Update Guide”
under the “Manual” Tab.

1-7

Hardware Setup

You can right-click the MSI Live Monitor icon to perform the functions
listed below:

ö Auto Search – Searches for the BIOS/drivers version you need immediately.
ö View Last Result – Allows you to view the last search result if there is any.
ö Preference – Configures the Search function, including the Search schedule.
ö FAQ – Provides a link to a database which contains various possible questions

about MSI’s products for users to inquire.

ö Exit – Exits the Live Monitor™ application.

Live Monitor™

The Live Monitor™ is a tool used to schedule the search for
the latest BIOS/drivers version on the MSI Web site. To use the
function, you need to install the “MSI Live Update 2” application.
After the installation, the “MSI Live Monitor” icon (as shown on
the right) will appear on the screen. Double click this icon to run
the application.

Double click the “MSI Live Monitor” icon at the lower-right corner
of the taskbar, and the following dialog box will appear. You can specify how
often the system will automatically search for the BIOS/drivers version, or
change the LAN settings right from the dialog box.

1-8

MS-6540G Micro ATX Mainboard

BATT

+

BIOS

Color Management

MSI has a unified color management rule for some connectors on the
mainboards, which helps you to install the memory modules, expansion cards
and other peripheral devices more easily and conveniently.

† Memory DDR DIMMs: light green
† IDE ATA133 connector: yellow
† AGP 8X slot: red
† USB 2.0 connector: yellow
† Front panel connector JFP1 : HDD LED in red, Reset Switch in blue,

Power Switch in black, Power LED in light green.

Memory DDR DIMMs

USB 2.0 connector

AGP 8X Slot

Front Panel connector JFP1

IDE ATA133 connectors

2-1

Hardware Setup

Chapter 2. Hardware
Setup

This chapter tells you how to install the CPU, memory
modules, and expansion cards, as well as how to setup the jumpers
on the mainboard. It also provides the instructions on
connecting the peripheral devices, such as the mouse, keyboard,
etc.

While doing the installation, be careful in holding the
components and follow the installation procedures.

Hardware Setup

2-2

MS-6540G Micro ATX Mainboard

BATT

+

BIOS

Quick Components Guide

CPU, p.2-3

Back Panel
I/O, p.2-10

FDD1, p.2-15

JUSB1, p.2-20

JCI1, p.2-18

PCI Slots, p.2-22

IDE1, IDE2,

p.2-16

JBAT1, p.2-21

JPW1, p.2-9

JAUD1, p.2-19

CONN1, p.2-9

JCD1, p.2-19

JFP1, p.2-18

CPUFAN1, p.2-15

DDR DIMMs, p.2-7

JSP1, p.2-20

AGP Slot, p.2-22

CNR Slot, p.2-22

SYSFAN1, p.2-15

J1394_1, p.2-17

2-3

Hardware Setup

Central Processing Unit: CPU

CPU Core Speed Derivation Procedure

If CPU Clock = 100MHz

Core/Bus ratio = 17

then CPU core speed = Host Clock x Core/Bus ratio

= 100MHz x 17
= 1.7 GHz

The mainboard supports Intel® Pentium® 4 Prescott & Northwood proc-

essor in the 478 pin package. The mainboard uses a CPU socket called PGA478
for easy CPU installation. When you are installing the CPU, make sure the

CPU has a heat sink and a cooling fan attached on the top to prevent overheating.

If you do not find the heat sink and cooling fan, contact your dealer to pur­chase and install them before turning on the computer . (For the latest information

about CPU, please visit http://www.msi.com.tw/program/products/mainboard/mbd/
pro_mbd_cpu_support.php )

MSI Reminds Y ou...

Overheating

Overheating will seriously damage the CPU and system. Always
make sure the cooling fan can work properly to protect the CPU
from overheating.

Replacing the CPU

While replacing the CPU, always turn off the ATX power supply
or unplug the power supply’s power cord from grounded outlet
first to ensure the safety of CPU.

Memory Speed/CPU FSB Support Matrix

FSB

Memory

DDR 266

400 MHz

DDR 333

533 MHz

OK
OK OK

800 MHz

OK OK

DDR 400

OK

OK

OK

OK

2-4

MS-6540G Micro ATX Mainboard

CPU Installation Procedures for Socket 478

1. Please turn off the power and
unplug the power cord before
installing the CPU.

2. Pull the lever sideways away
from the socket. Make sure
to raise the lever up to a 90­degree angle.

3. Look for the gold arrow. The
gold arrow should point to­wards the lever pivot. The
CPU can only fit in the correct
orientation.

4. If the CPU is correctly
installed, the pins should be
completely embedded into the
socket and can not be seen.
Please note that any violation
of the correct installation pro­cedures may cause permanent
damages to your mainboard.

5. Press the CPU down firmly into
the socket and close the lever .
As the CPU is likely to move
while the lever is being closed,
always close the lever with
your fingers pressing tightly
on top of the CPU to make sure
the CPU is properly and com­pletely embedded into the
socket.

Open Lever

90 degree

Sliding

Plate

Close
Lever

Press down

the CPU

Gold arrow

Gold arrow

Gold arrow

Correct CPU placement

Incorrect CPU place me n t

X

O

2-5

Hardware Setup

Installing the CPU Fan

As processor technology pushes to faster speeds and higher performance,
thermal management becomes increasingly important. To dissipate heat, you
need to attach the CPU cooling fan and heatsink on top of the CPU. Follow the
instructions below to install the Heatsink/Fan:

2. Position the heatsink onto the reten­tion mechanism.

1. Locate the CPU and its retention
mechanism on the motherboard.

3. Mount the fan on top of the heatsink.
Press down the fan until its four clips
get wedged in the holes of the reten­tion mechanism.

4. Press the two levers down to fasten
the fan. Each lever can be pressed
down in only ONE direction.

retention mechanism

levers

2-6

MS-6540G Micro ATX Mainboard

5. Connect the fan power cable from the mounted fan to the 3-pin fan power connec­tor on the board.

fan power cable

NOTES

2-7

Hardware Setup

Memory

The mainboard provides two 184-pin unbuffered DDR266/DDR333/
DDR400 DDR SDRAM, and supports the memory size up to 2GB without ECC.
To operate properly, at least one DIMM module must be installed.

(For the updated supporting memory modules, please visit http://www.msi.com.
tw/program/products/mainboard/mbd/pro_mbd_trp_list.php )

DDR DIMM Slots

(DDR 1~2)

Introduction to DDR SDRAM

DDR (Double Data Rate) SDRAM is similar to conventional SDRAM, but
doubles the rate by transferring data twice per cycle. It uses 2.5 volts as opposed
to 3.3 volts used in SDR SDRAM, and requires 184-pin DIMM modules rather
than 168-pin DIMM modules used by SDR SDRAM.

MSI Reminds Y ou...

For Micron MT46V32M8TG-5B DDR400 memory module,
please be sure to install 2 dimms to avoid the incompatibility
issue.

2-8

MS-6540G Micro ATX Mainboard

DDR Module Combination

Install at least one DIMM module on the slots. Memory modules can be
installed on the slots in any order . You can install either single- or double-sided
modules to meet your own needs.

Memory modules can be installed in any combination as follows:

Installing DDR Modules

1. The DDR DIMM has only one notch on the center of module. The module

will only fit in the right orientation.

2. Insert the DIMM memory module vertically into the DIMM slot. Then

push it in until the golden finger on the memory module is deeply inserted
in the socket.

3. The plastic clip at each side of the DIMM slot will automatically close.

MSI Reminds Y ou...

You can barely see the golden finger if the module is properly
inserted in the socket.

Volt

Notch

S: Single Side D: Double Side

Slot Memory Module Total Memory

DDR 2
(Bank 2 & 3) S/D 64MB~1GB

Maximum System Memory Supported 64MB~2GB

DDR 1
(Bank 0 & 1) S/D 64MB~1GB

2-9

Hardware Setup

Power Supply

The mainboard supports ATX power supply for the power system. Before
inserting the power supply connector, always make sure that all components
are installed properly to ensure that no damage will be caused.

A TX 20-Pin Power Connector: CONN1

This connector allows you to connect to an ATX power supply. To
connect to the ATX power supply, make sure the plug of the power supply is
inserted in the proper orientation and the pins are aligned. Then push down
the power supply firmly into the connector.

A TX 12V Power Connector: JPW1

This 12V power connector is used to provide power to the CPU.

PIN SIGNAL

1 GND
2 GND
3 12V
4 12V

JPW1 Pin Definition

PIN SIGNAL

11 3.3V
12 -12V
13 GND
14 PS_ON
15 GND
16 GND
17 GND
1 8 -5V
19 5V
20 5V

PIN SIGNAL

1 3.3V
2 3.3V
3 GND
45V
5 GND
65V
7 GND
8 PW_OK
9 5V_SB
10 12V

CONN1 Pin Definition

CONN1

1

3

JPW1

2

4

10

1

20

11

MSI Reminds Y ou...

Power supply of 300 (and up) watt is highly recommended for
system stability.

2-10

MS-6540G Micro ATX Mainboard

The back panel provides the following connectors:

Back Panel

Mouse Connector

The mainboard provides a standard PS/2® mouse mini DIN connector for
attaching a PS/2® mouse. You can plug a PS/2® mouse directly into this
connector. The connector location and pin assignments are as follows:

PIN SIGNAL DESCRIPTION

1 Mouse DATA Mouse DATA
2 NC No connection
3 GND Ground
4 VCC +5V
5 Mouse Clock Mouse clock
6 NC No connection

Pin Definition

PS/2 Mouse (6-pin Female)

2

1

3

4

5

6

Mouse

Parallel

USB Ports

Keyboard

L-in

MIC

L-out

LAN

(Optional)

COMA VGA Port

1394

(Optional)

USB Ports

2-11

Hardware Setup

Keyboard Connector

The mainboard provides a standard PS/2® keyboard mini DIN connector
for attaching a PS/2® keyboard. You can plug a PS/2® keyboard directly into
this connector.

PS/2 Keyboard (6-pin Female)

2

1

3

4

5

6

USB Connectors

The mainboard provides a UHCI (Universal Host Controller Interface)
Universal Serial Bus root for attaching USB devices such as keyboard, mouse
or other USB-compatible devices. You can plug the USB device directly into
the connector.

USB Ports

1 2 3 4

5 6 7 8

PIN SIGNAL DESCRIPTION

1 VCC +5V
2 -Data 0 Negative Data Channel 0
3 +Data0 Positive Data Channel 0
4 GND Ground
5 VCC +5V
6 -Data 1 Negative Data Channel 1
7 +Data 1 Positive Data Channel 1
8 GND Ground

USB Port Description

PIN SIGNAL DESCRIPTION

1 Keyboard DATA Keyboard DAT A
2 NC No connection
3 GND Ground
4 VCC +5V
5 Keyboard Clock Keyboard clock
6 NC No connection

Pin Definition

2-12

MS-6540G Micro ATX Mainboard

Serial Port Connector: COMA

The mainboard offers one 9-pin male DIN connector as serial port COM
A. This port is 16550A high speed communication ports that send/receive 16
bytes FIFOs. You can attach a serial mouse or other serial device directly to it.

9-Pin Male DIN Connector

1 2 3 4 5

6 7 8 9

VGA Connector

The mainboard provides a DB 15-pin female connector to connect a VGA
monitor.

PIN SIGNAL DESCRIPTION

1 DCD Data Carry Detect
2 SIN Serial In or Receive Data
3 SOUT Serial Out or Transmit Data
4 DTR Data T erminal Ready)
5 GND Ground
6 DSR Data Set Ready
7 RTS Request To Send
8 CTS Clear To Send
9 RI Ring Indicate

Pin Definition

IEEE 1394 Port (Optional)

The back panel provides one standard IEEE 1394 port. The standard

IEEE 1394 port connects to IEEE 1394 devices without external power. The
IEEE 1394 high-speed serial bus complements USB by providing enhanced PC
connectivity for a wide range of devices, including consumer electronics au­dio/video (A/V) appliances, storage peripherals, other PCs, and portable
devices.

VGA Connector

(DB 15-pin)

1

5

11

15

Pin Signal Description

1 RED
2 GREEN
3 BLUE
4 N/C
5 GND
6 GND
7 GND
8 GND

Pin Signal Description

9 +5V
10 GND
1 1 N/C
12 SDA
13 Horizontal Sync
14 Vertical Sync
15 SCL

1394 Port

2-13

Hardware Setup

RJ-45 LAN Jack (Optional)

The mainboard provides one standard RJ-45 jack for connection to Local
Area Network (LAN). You can connect a network cable to the LAN jack.

RJ-45 LAN Jack

MSI Reminds Y ou...

For advanced audio application, Realtek ALC 655 is provided
to offer support for 6-channel audio operation and can turn
rear audio connectors from 2-channel to 4-/6-channel audio.
For more information on 6-channel audio operation, please
refer to Appendix. Using 4- or 6-Channel Audio Function.

Pin Definition

PIN SIGNAL DESCRIPTION

1 TDP Transmit Differential Pair
2 TDN Transmit Differential Pair
3 RDP Receive Differential Pair
4 NC Not Used
5 NC Not Used
6 RDN Receive Differential Pair
7 NC Not Used
8 NC Not Used

Audio Port Connectors

Line Out is a connector for Speakers or Headphones. Line In is used for

external CD player, Tape player, or other audio devices. Mic is a connector for
microphones.

1/8” Stereo Audio Connectors

Line Out

Line In

MIC

2-14

MS-6540G Micro ATX Mainboard

Parallel Port Connector: LPT1

The mainboard provides a 25-pin female centronic connector as LPT . A
parallel port is a standard printer port that supports Enhanced Parallel Port
(EPP) and Extended Capabilities Parallel Port (ECP) mode.

13 1

14

25

PIN SIGNAL DESCRIPTION

1 STROBE Strobe
2 DAT A0 Data0
3 DAT A1 Data1
4 DAT A2 Data2
5 DAT A3 Data3
6 DAT A4 Data4
7 DAT A5 Data5
8 DAT A6 Data6
9 DAT A7 Data7
10 ACK# Acknowledge
11 BUSY Busy
12 PE Paper End
1 3 SELECT Select
1 4 AUTO FEED# Automatic Feed
15 ERR# Error
1 6 INIT# Initialize Printer
17 SLIN# Select In
18 GND Ground
19 GND Ground
20 GND Ground
21 GND Ground
22 GND Ground
23 GND Ground
24 GND Ground
25 GND Ground

Pin Definition

2-15

Hardware Setup

The mainboard provides connectors to connect to FDD, IDE HDD, case,
LAN, USB Ports, IR module and CPU/System/Power Supply F AN.

Floppy Disk Drive Connector: FDD1

The mainboard provides a standard floppy disk drive connector that
supports 360K, 720K, 1.2M, 1.44M and 2.88M floppy disk types.

Connectors

FDD1

Fan Power Connectors: CPUF AN1/SYSF AN1

The CPUF AN1 (processor fan) and SYSFAN1 (system fan) support sys­tem cooling fan with +12V. They support three-pin head connector. When
connecting the wire to the connectors, always take note that the red wire is the
positive and should be connected to the +12V, the black wire is Ground and
should be connected to GND. If the mainboard has a System Hardware Moni­tor chipset on-board, you must use a specially designed fan with speed sensor
to take advantage of the CPU fan control.

MSI Reminds Y ou...

1. Always consult the vendors for proper CPU cooling fan.

2. CPUFAN1 supports the fan control. You can install the PC
Alert utility that will automatically control the CPU fan speed
according to the actual CPU temperature.

CPUFAN1

SENSOR
+12V
GND

SYSFAN1

SENSOR

+12V

GND

2-16

MS-6540G Micro ATX Mainboard

Hard Disk Connectors: IDE1 & IDE2

The mainboard has a 32-bit Enhanced PCI IDE and Ultra DMA 33/66/100/
133 controller that provides PIO mode 0~4, Bus Master, and Ultra DMA 33/66/
100/133 function. Y ou can connect up to four hard disk drives, CD-ROM, 120MB
Floppy (reserved for future BIOS) and other devices. These connectors sup­port the provided IDE hard disk cable.

IDE1 (Primary IDE Connector)
The first hard drive should always be connected to IDE1. IDE1 can connect a

Master and a Slave drive. You must configure second hard drive to Slave mode
by setting the jumper accordingly.

IDE2 (Secondary IDE Connector)
IDE2 can also connect a Master and a Slave drive.

MSI Reminds Y ou...

If you install two hard disks on cable, you must configure the
second drive to Slave mode by setting its jumper. Refer to the
hard disk documentation supplied by hard disk vendors for
jumper setting instructions.

IDE1IDE2

2-17

Hardware Setup

IEEE 1394 Connector: J1394_1 (Optional)

The mainboard provides one IEEE1394 pin header that allows you to
connect IEEE 1394 ports via an external IEEE1394 bracket (optional).

Pin Definition

PIN SIGNAL PIN SIGNAL

1TPA+ 2 TPA­3 Ground 4 Ground
5 TPB+ 6 TPB­7 Cable power 8 Cable power
9 Key (no pin) 1 0 Ground

J1394_1

1

9

2

10

Foolproof

design

Connected to J1394_1

IEEE1394 Bracket (Optional)

2-18

MS-6540G Micro ATX Mainboard

Front Panel Connectors: JFP1

The mainboard provides one front panel connector JFP1 for electrical
connection to the front panel switches and LEDs. It is compliant with Intel

®

Front Panel I/O Connectivity Design Guide.

PIN SIGNAL DESCRIPTION

1 HD_LED_P Hard disk LED pull-up
2 FP PWR/SLP MSG LED pull-up
3 HD_LED_N Hard disk active LED
4 FP PWR/SLP MSG LED pull-up
5 RST_SW_N Reset Switch low reference pull-down to GND
6 PWR_SW_P Power Switch high reference pull-up
7 RST_SW_P Reset Switch high reference pull-up
8 PWR_SW_N Power Switch low reference pull-down to GND
9 RSVD_DNU Reserved. Do not use.

JFP1 Pin Definition

JFP1

1

9

10

Reset
Switch

Power
LED

Power
Switch

2

HDD
LED

Chassis Intrusion Switch Connector: JCI1

This connector is connected to 2-pin connector chassis switch. If the
Chassis is open, the switch will be short. The system will record this status. T o
clear the warning, you must enter the BIOS setting and clear the status.

JCI1

CINTRU

GND

1

2-19

Hardware Setup

Front Panel Audio Connector: JAUD1

The JAUD1 front panel audio connector allows you to connect to the

front panel audio and is compliant with Intel® Front Panel I/O Connectivity
Design Guide.

MSI Reminds Y ou...

If you don’t want to connect to the front audio
header, pins 5 & 6, 9 & 10 have to be jumpered in
order to have signal output directed to the rear
audio ports. Otherwise, the Line-Out connector on
the back panel will not function.

PIN SIGNAL DESCRIPTION

1 AUD_MIC Front panel microphone input signal
2 AUD_GND Ground used by analog audio circuits
3 AUD_MIC_BIAS Microphone power
4 AUD_VCC Filtered +5V used by analog audio circuits
5 AUD_FPOUT_R Right channel audio signal to front panel
6 AUD_RET_R Right channel audio signal return from front panel
7 HP_ON Reserved for future use to control headphone amplifier
8 KEY No pin
9 AUD_FPOUT_L Left channel audio signal to front panel
1 0 AUD_RET_L Left channel audio signal return from front panel

JAUD1 Pin Definition

JAUD1

1

2

9

10

5

6

10

9

CD-In Connector: JCD1

The connector is for CD-ROM audio connector.

JCD1

GND

L

R

2-20

MS-6540G Micro ATX Mainboard

Connected to JSP1

SPDIF Bracket (Optional)

SPDIF Connector: JSP1

The connector is used to connect SPDIF (Sony & Philips Digital Inter-

connect Format) interface for digital audio transmission.

The JSP1 supports SPDIF output
only and can be connected to an
external SPDIF Bracket for digital audio
transmission.

1 VCCS
2 SPDIF0
3 GND

JSP1 Pin Definition

PIN SIGNAL

JSP1

1

3

Front USB Connectors: JUSB1

The mainboard provides one USB 2.0 pin header JUSB1 that is compliant
with Intel® I/O Connectivity Design Guide. USB 2.0 technology increases data
transfer rate up to a maximum throughput of 480Mbps, which is 40 times faster
than USB 1.1, and is ideal for connecting high-speed USB interface peripherals
such as USB HDD, digital cameras, MP3 players, printers, modems and the
like.

JUSB1

(USB 2.0/Intel spec)

1 9

2 10

PIN SIGNAL PIN SIGNAL

1 VCC 2 VCC
3 USB0- 4 USB1­5 USB0+ 6 USB1+
7 GND 8 GND
9 K ey 10 USBOC

JUSB1 Pin Definition

2-21

Hardware Setup

The motherboard provides the following jumpers for you to set the
computer’s function. This section will explain how to change your motherboard’ s
function through the use of jumpers.

Clear CMOS Jumper: JBA T1

There is a CMOS RAM on board that has a power supply from external
battery to keep the data of system configuration. With the CMOS RAM, the
system can automatically boot OS every time it is turned on. If you want to
clear the system configuration, use the JBAT1 (Clear CMOS Jumper ) to clear
data. Follow the instructions below to clear the data:

Jumpers

MSI Reminds Y ou...

You can clear CMOS by shorting 2-3 pin while the system is off.
Then return to 1-2 pin position. Avoid clearing the CMOS while
the system is on; it will damage the mainboard.

JBAT1

1

Keep Data Clear Data

3

13

1

2-22

MS-6540G Micro ATX Mainboard

Slots

AGP (Accelerated Graphics Port) Slot

The AGP slot allows you to insert the AGP graphics card. AGP is an
interface specification designed for the throughput demands of 3D graphics. It
introduces a 66MHz, 32-bit channel for the graphics controller to directly ac­cess main memory.

PCI (Peripheral Component Interconnect) Slots

The PCI slots allow you to insert the expansion cards to meet your needs.
When adding or removing expansion cards, make sure that you unplug the
power supply first. Meanwhile, read the documentation for the expansion card
to make any necessary hardware or software settings for the expansion card,
such as jumpers, switches or BIOS configuration.

CNR Slot

The CNR slot allows you to insert the CNR expansion cards. CNR is a
specially designed audio, or modem riser card for ATX family motherboards.
Its main processing is done through software and controlled by the
motherboard’s chipset.

The motherboard provides one AGP slot, three 32-bit PCI bus slots and
one CNR slot.

AGP Slot

PCI Slot

CNR Slot

2-23

Hardware Setup

PCI Interrupt Request Routing

The IRQ, abbreviation of interrupt request line and pronounced I-R-Q,
are hardware lines over which devices can send interrupt signals to the
microprocessor. The PCI IRQ pins are typically connected to the PCI bus INT
A# ~ INT D# pins as follows:

Order 1 Order 2 Order 3 Order 4
PCI Slot 1 INT B# INT C# INT D# INT A#
PCI Slot 2 INT C# INT D# INT A# INT B#
PCI Slot 3 INT D # INT A# INT B# INT C#

3-1

BIOS Setup

Chapter 3. BIOS Setup

This chapter provides information on the BIOS Setup program
and allows you to configure the system for optimum use.
You may need to run the Setup program when:

² An error message appears on the screen during the system

booting up, and requests you to run SETUP.

² You want to change the default settings for customized

features.

BIOS Setup

3-2

MS-6540G Micro ATX Mainboard

Entering Setup

Power on the computer and the system will start POST (Power On Self Test)
process. When the message below appears on the screen, press <DEL> key to
enter Setup.

Press DEL to enter SETUP

If the message disappears before you respond and you still wish to enter
Setup, restart the system by turning it OFF and On or pressing the RESET
button. You may also restart the system by simultaneously pressing <Ctrl>,
<Alt>, and <Delete> keys.

Control Keys

<↑> Move to the previous item
<↓> Move to the next item
<←> Move to the item in the left hand

<→> Move to the item in the right hand

<Enter> Sele ct the item
<Esc> Jumps to th e Exit menu or returns to the main menu from a

submenu

<+/PU> Increase the numeric value or make changes
<-/PD> Decrease the numeric value or make changes
<F1> General help, only for Status Page Setup Menu and Option Page

Setup Menu

<F5> Load Previous Values
<F6> Load Fail-Safe Defaults
<F7> Load Optimized Defau lts

3-3

BIOS Setup

Getting Help

After entering the Setup menu, the first menu you will see is the Main Menu.

Main Menu

The main menu lists the setup functions you can make changes to. You can use
the control keys ( ↑↓ ) to select the item. The on-line description of the high­lighted setup function is displayed at the bottom of the screen.

Sub-Menu

If you find a right pointer symbol (as shown in
the right view) appears to the left of certain
fields that means a sub-menu containing
additional options can be launched from this
field. You can use control keys ( ↑↓ ) to
highlight the field and press <Enter> to call
up the sub-menu. Then you can use the
control keys to enter values and move from
field to field within a sub-menu. If you want to
return to the main menu, just press <Esc >.

General Help <F1>

The BIOS setup program provides a General Help screen. You can call up this
screen from any menu by simply pressing <F1>. The Help screen lists the
appropriate keys to use and the possible selections for the highlighted item.
Press <Esc> to exit the Help screen.

MSI Reminds You...

The items under each BIOS category described in this chapter
are under continuous update for better system performance.
Therefore, the description may be slightly different from the
latest BIOS and should be held for reference only.

3-4

MS-6540G Micro ATX Mainboard

The Main Menu

Standard CMOS Features

Use this menu for basic system configurations, such as time, date etc.

Advanced BIOS Features

Use this menu to setup the items of Award® special enhanced features.

Advanced Chipset Features

Use this menu to change the values in the chipset registers and optimize your
system’s performance.

Integrated Peripherals

Use this menu to specify your settings for integrated peripherals.

Power Management Setup

Use this menu to specify your settings for power management.

PNP/PCI Configurations

This entry appears if your system supports PnP/PCI.

PC Health Status

This entry shows your PC health status.

Once you enter Award® BIOS CMOS Setup Utility, the Main Menu (figure
below) will appear on the screen. The Main Menu allows you to select from
twelve setup functions and two exit choices. Use arrow keys to select among
the items and press <Enter> to accept or enter the sub-menu.

3-5

BIOS Setup

Frequency/Voltage Control

Use this menu to specify your settings for frequency/voltage control.

Load Fail-Safe Defaults

Use this menu to load the BIOS values for the best system performance, but the
system stability may be affected.

Load Optimized Defaults

Use this menu to load factory default settings into the BIOS for stable system
performance operations.

Set Supervisor Password

Use this menu to set Supervisor Password.

Set User Password

Use this menu to set User Password.

Save & Exit Setup

Save changes to CMOS and exit setup.

Exit Without Saving

Abandon all changes and exit setup.

3-6

MS-6540G Micro ATX Mainboard

Standard CMOS Features

The items in Standard CMOS Features Menu are divided into 11 categories.
Each category includes no, one or more than one setup items. Use the arrow
keys to highlight the item and then use the <PgUp> or <PgDn> keys to select
the value you want in each item.

Date

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

day Day of the week, from Sun to Sat, determined by BIOS. Read-

only.

month The month from J an. through Dec.
date The date from 1 to 31 can be keyed by numeric function keys.
year The year can be adjusted by users.

Time

The time format is <hour> <minute> <second>.

IDE Primary/Secondary Master/Slave

Press PgUp/<+> or PgDn/<-> to select Manual, None or Auto type. Note that
the specifications of your drive must match with the drive table. The hard disk
will not work properly if you enter improper information for this category. If
your hard disk drive type is not matched or listed, you can use Manual to
define your own drive type manually.

3-7

BIOS Setup

If you select Manual, related information is asked to be entered to the following
items. Enter the information directly from the keyboard. This information
should be provided in the documentation from your hard disk vendor or the
system manufacturer.

Access Mode The settings are CHS, LBA, Large, Auto.
Capacity The formatted size of the storage device.
Cylinder Number of cylinders.
Head Number of heads.
Precomp Write precompensation.
Landing Zone Cylinder location of the landing zone.
Sector Number of sectors.

Drive A/B

This item allows you to set the type of floppy drives installed. Available
options: None, 360K, 5.25 in., 1.2M, 5.25 in., 720K, 3.5 in., 1.44M, 3.5 in., 2.

88M, 3.5 in.

Floppy 3 Mode Support

The item allows you to set the Floppy 3 Mode. Available options are: Disabled,
Drive A, Drive B, Both.

Video

The setting controls the type of video adapter used for the primary monitor of
the system. Available options: EGA/VGA , CGA 40, CGA 80, MONO.

Halt On

The setting determines whether the system will stop if an error is detected at
boot. Available options are:

All Errors The system stops when any error is detected.
No Errors The system doesn’t stop for any detected error.
All, But Keyboard The system doesn’t stop for a keyboard error.
All, But Diskette The system doesn’t stop for a disk error.
All, But Disk/Key The syst em doesn’t stop for either a disk or a

keyboard error.

Base/Extended/Total Memory

The three items show the memory status of your system (read only).

3-8

MS-6540G Micro ATX Mainboard

Advanced BIOS Features

Quick Boot

Setting the item to Enabled allows the system to boot within 5 seconds since
it will skip some check items Settings: Disabled, Enabled.

Anti-Virus Protection

The item is to set the Virus Warning feature for IDE Hard Disk boot sector
protection. If the function is enabled and any attempt to write data into this
area is made, BIOS will display a warning message on screen and beep. Settings:
Disabled, Enabled.

Boot Sequence

Press <Enter> and the following sub-menu appears:

1st/2nd/3rd Boot Device

The items allow you to set the sequence of boot devices where BIOS
attempts to load the disk operating system.

3-9

BIOS Setup

Boot Other Device

Setting the option to Enabled allows the system to try to boot from other
device if the system fails to boot from the 1st/2nd/3rd boot device.

CPU L1 & L2 Cache

The item allows you to turn on or off CPU’s internal (L1) and external (L2)
cache. Settings: Enabled, Disabled.

CPU L2 Cache ECC Checking

This field is used to enable or disable the CPU L2 Cache ECC Checking function.
Settings: Enabled, Disabled.

Swap Floppy

Setting to Enabled will swap floppy drives A: and B:.

Seek Floppy

Setting to Enabled will make BIOS seek floppy drive A: before booting the
system. Settings: Disabled, Enabled.

Boot Up NumLock Status

This setting is to set the Num Lock status when the system is powered on.
Setting to On will turn on the Num Lock key when the system is powered on.
Setting to Off will allow users to use the arrow keys on the numeric keypad.
Setting options: On, Off.

Typematic Rate Setting

This item is used to enable or disable the typematic rate setting including
Typematic Rate & Typematic Delay.

Typematic Rate (Chars/Sec)

After Typematic Rate Setting is enabled, this item allows you to set the

MSI Reminds You...

1. Available settings for “1st/2nd/3rd Boot Device” vary depend­ing on the bootable devices you have installed. For example,
if you did not install a floppy drive, the setting “Floppy” does
not show up.

2. If you want to boot from any of the USB-interface devices, please
set USB Keyboard/Mouse Support in SiS OnChip PCI Device
of Integrated Peripherals to Enabled.

3-10

MS-6540G Micro ATX Mainboard

rate (characters/second) at which the keys are accelerated. Settings: 6, 8,
10, 12, 15, 20, 24, 30.

Typematic Delay (Msec)

This item allows you to select the delay between when the key was first
pressed and when the acceleration begins. Settings: 250, 500, 750 and

1000.

Security Option

This specifies the type of BIOS password protection that is implemented.
Settings are described below:

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

This allows you to activate the S.M.A.R.T. (Self-Monitoring Analysis &
Reporting Technology) capability for the hard disks. S.M.A.R.T is a utility that
monitors your disk status to predict hard disk failure. This gives you an
opportunity to move data from a hard disk that is going to fail to a safe place
before the hard disk becomes offline. Settings: Enabled and Disabled.

HT CPU Function

This field is used to enable or disable the Intel Hyper Threading CPU function.
Setting to Enabled will increase the system performance. Settings: Enabled,

Disabled. Please disable this item if your operating system doesn’t support
HT Function, or unreliability and instability may occur.

Option Description

Setup The password prompt appears only w hen end users try to

run Setup.

System A password prompt appears every time when the com-

puter is powered on or when end users try to run Setup.

MSI Reminds You...

Enabling the functionality of Hyper-Threading Technology for your
computer system requires ALL of the following platform
Components:
*CPU: An Intel® Pentium® 4 Processor with HT Technology;
*Chipset: A chipset that supports HT Technology;
*BIOS: A BIOS that supports HT Technology and has it enabled;
*OS: Only Microsoft® Windows 2000 and XP can support HT

technology.

3-11

BIOS Setup

APIC Mode

This field is used to enable or disable the APIC (Advanced Programmable Inter­rupt Controller). Due to compliance to PC2001 design guide, the system is able
to run in APIC mode. Enabling APIC mode will expand available IRQs resources

for the system. Settings: Enabled, Disabled.

MPS Table Version

This field allows you to select which MPS (Multi-Processor Specification)
version to be used for the operating system. You need to select the MPS
version supported by your operating system. To find out which version to
use, consult the vendor of your operating system. Settings: 1.4, 1.1.

3-12

MS-6540G Micro ATX Mainboard

Advanced Chipset Features

MSI Reminds You...

Change these settings only if you are familiar with the chipset.

DRAM Clock/Timing Control

Press <Enter> and the following sub-menu appears:

Current CPU/DRAM/DDR Frequency

These items allow you to view the current CPU/DRAM/DDR frequency.

Performance Mode

This setting particularly provided by SiS gives the proper suggestion for
user to set timing. The Timings programmed into this register are depen-

dent on the system design. Setting options: Enabled, Disabled.

DRAM Frequency

This allows you to determine the DRAM frequency manually. Setting
options: By SPD, 100 MHz, 133 MHz, 166 MHz, 200 MHz.

3-13

BIOS Setup

DRAM Timing Control

This field allows you to select the DRAM timing setting. Setting to By
SPD enables Max Memclock (Mhz) automatically to be determined by
SPD. Selecting Manual allows users to configure these fields manually.

DRAM CAS Latency

When the “DRAM Timing Control” is set to Manual, this field is adjustable.
The field controls the CAS latency, which determines the timing delay
before SDRAM starts a read command after receiving it. Setting options:
2T, 2.5T, 3T. 2T increases system performance while 3T provides more
stable system performance.

RAS Active Time (tRAS)

When the “DRAM Timing Control” is set to Manual, this field is adjustable.
This setting determines the time RAS takes to read from and write to a
memory cell. Setting options: 4T to 9T.

RAS Precharge Time (tRP)

When the “DRAM Timing Control” is set to Manual, this field is adjustable.
This setting controls the number of cycles for Row Address Strobe (RAS)
to be allowed to precharge. If insufficient time is allowed for the RAS to
accumulate its charge before DRAM refresh, refreshing may be incom­plete and DRAM may fail to retain data. This item applies only when
synchronous DRAM is installed in the system. Setting options: 2T to 5T.

RAS to CAS Delay (tRCD)

When the “DRAM Timing Control” is set to Manual, this field is adjustable.
When DRAM is refreshed, both rows and columns are addressed
separately. This setup item allows you to determine the timing of the
transition from RAS (row address strobe) to CAS (column address strobe).
The less the clock cycles, the faster the DRAM performance. Settings: 2T
to 5T.

MA 1T/2T Select

This setting controls the SDRAM command rate. Selecting Auto allows
SDRAM signal controller to run at 1T (T=clock cycles) rate. Selecting MA
1T makes SDRAM signal controller run at 2T rate. 1T is faster than 2T.
Setting options: Auto, 2T, 1T.

3-14

MS-6540G Micro ATX Mainboard

AGP & P2P Bridge Control

Press <Enter> and the following sub-menu appears:

AGP Aperture Size

This setting controls just how much system RAM can be allocated to
AGP for video purposes. The aperture is a portion of the PCI memory
address range dedicated to graphics memory address space. Host cycles
that hit the aperture range are forwarded to the AGP without any translation.
The option allows the selection of an aperture size of 32MB, 64MB, 128MB,

256MB, 512MB.

AGP Fast Write

This option enables or disables the AGP Fast Write feature. The Fast
Write technology allows the CPU to write directly to the graphics card
without passing anything through the system memory and improves the
AGP 4X speed.

AGP Data Rate

This option allows you to specify the transferring data rate of AGP. Setting
options: Auto, 1X, 2X, 4X.

OnChip AGP Control

Press <Enter> and the following sub-menu appears:

VGA Shared Memory Size

Specify the size of system memory to allocate for video memory, from 16
to 128 MB.

3-15

BIOS Setup

Integrated Peripherals

SiS OnChip IDE Device

Press <Enter> and the following sub-menu appears:

Internal PCI/IDE

The field specifies the internal primary and secondary PCI/IDE controllers.
Settings: Disabled, Primary, Secondary, Both.

IDE Primary/Secondary Master/Slave PIO

The four IDE PIO (Programmed Input/Output) fields let you set a PIO
mode (0-4) for each of the four IDE devices that the onboard IDE interface
supports. Modes 0 through 4 provide successively increased
performance. In Auto mode, the system automatically determines the best
mode for each device. The settings are: Auto, Mode 0, Mode 1, Mode 2,
Mode 3, Mode 4.

Primary/Secondary Master/Slave Ultra DMA

Ultra DMA 33/66/100/133 implementation is possible only if your IDE
hard drive supports it and the operating environment includes a DMA

3-16

MS-6540G Micro ATX Mainboard

driver (Windows ME, XP or a third-party IDE bus master driver). If your
hard drive and your system software both support Ultra DMA/33, Ultra
DMA/66, Ultra DMA/100 and Ultra DMA/133, select Auto to enable BIOS
support. Settings: Auto, Disabled.

IDE DMA transfer access

Setting to Enabled will open DMA bus master and execute DMA action in
DOS, which will make the data transferring faster. Settings: Disabled,

Enabled.

SiS OnChip PCI Device

Press <Enter> and the following sub-menu appears:

SiS USB Controller

Select Enabled if your system contains a Universal Serial Bus (USB)
controller and you have USB peripherals. Settings: Enabled, Disabled.

USB 2.0 Supports

This item is used to enable/disable the USB 2.0 Support. Settings: Enabled,
Disabled.

USB Keyboard/Mouse Support

Set to Enabled if you need to use a USB keyboard/mouse in the operating
system that does not support or does not have any USB driver installed,
such as DOS and SCO Unix.

SiS AC97 Audio

Auto allows the mainboard to detect whether an audio device is used. If
an audio device is detected, the onboard AC97 (Audio Codec’97) controller
will be enabled; if not, it is disabled. Disable the controller if you want to
use other controller cards to connect an audio device. Settings: Auto,
Disabled.

3-17

BIOS Setup

SiS S/W Modem

This item is used to enable/disable the SiS S/W Modem. Settings: Auto,
Disabled.

SiS 1394 Controller

This item is used to enable/disable the 1394 controller. Settings: Enabled,
Disabled.

SiS 10/100M Ethernet

This item is used to enable/disable the 10/100M Ethernet function. Settings:
Enabled, Disabled.

Onboard Lan Boot ROM

This item is used to decide whether to invoke the Boot ROM of the
Onboard LAN Chip. Settings: Enabled, Disabled.

Onboard SuperIO Device

Press <Enter> and the following sub-menu appears:

Onboard FDC Controller

Select Enabled if your system has a floppy disk controller (FDD) installed
on the system board and you wish to use it. If you install add-on FDC or
the system has no floppy drive, select Disabled in this field. Setting
options: Enabled, Disabled.

Onboard Serial Port 1

This item specifies the base I/O port address and IRQ for the onboard
Serial Port 1 (COM A). Selecting Auto allows BIOS to automatically deter-
mine the correct base I/O port address. Settings: Disabled, 3F8/IRQ4,
2F8/IRQ3, 3E8/IRQ4, 2E8/IRQ3, Auto.

Onboard Parallel Port

This specifies the I/O port address and IRQ of the onboard parallel port.
Settings: 378/IRQ7, 278/IRQ5, 3BC/IRQ7, Disabled.

3-18

MS-6540G Micro ATX Mainboard

Parallel Port Mode

This item selects the operating mode for the parallel port: Normal, SPP,
EPP, ECP, or ECP+EPP.

SPP: Standard Parallel Port
EPP: Enhanced Parallel Port
ECP: Extended Capability Port
ECP + EPP: Extended Capability Port + Enhanced Parallel Port
Normal: Standard Parallel Port + Bi-Directional Mode.

EPP Mode Select

This item selects the EPP mode. Settings: EPP1.9, EPP1.7.

ECP Mode Use DMA

The ECP mode has to use the DMA channel, so choose the onboard
parallel port with the ECP feature. After selecting it, the following message
will appear: “ECP Mode Use DMA.” At this time, the user can choose
between DMA channel 3 or 1.

Init Display First

This item specifies which VGA card is your primary graphics adapter. Settings:
PCI Slot, AGP.

3-19

BIOS Setup

Power Management Setup

ACPI Function

This item is to activate the ACPI (Advanced Configuration and Power Manage­ment Interface) function. If your operating system is ACPI-aware, such as
Windows 98SE/2000/ME, select Enabled. Available options: Enabled, Disabled.

Sleep State

This item specifies the power saving modes for ACPI function. Options are:

S1/POS The S1 sleep mode is a low power state. In this state, no

system context is lost (CPU or chipset) and hardware
maintains all system context.

S3/STR The S3 sl eep mode is a lower power state where the

information of system configuration and open
applications/files is saved to main memory that remains
powered while most other hardware components turn off
to save energy. The information stored in memory will
be used to restore the system when a “wake up” event
occurs.

Power Management

This item is used to select the degree (or type) of power saving and is related to
the mode: Suspend Mode. There are three options for power management:

Min Saving Minimum Power Management. Suspend Mode = 1 Hour.
Max Saving Maximum Power Management. Suspend Mode = 1 Min.
User Define Allows end users to configure the Suspend Mode field.

3-20

MS-6540G Micro ATX Mainboard

Suspend Mode

When you choose User Define in the Power Management item, this item is
selectable. This setting allows you to select the type of Suspend mode. Setting
options: Disabled (default setting), 1 min to 1 hour.

MODEM Use IRQ

This setting names the interrupt request (IRQ) line assigned to the modem (if
any) on your system. Activity of the selected IRQ always awakens the system.
Setting options: 3, 4, 5, 7, 9, 10, 11, Auto.

Hot Key Function As

This setting specifies the function of the preset hot key (Ctrl+Alt+Backspace).
Setting options: Disable, Power Off, Suspend.

HDD Off After

After the selected period of system inactivity, the Hard Disk will be shut off.
Setting options: Disabled, 1-15 Mins.

Power Button Function

This feature allows users to configure the Power Button function. Settings are:

Power Off The power button functions as a normal power-on/-

off button.

Suspend When you press the power button, the computer

enters the suspend/sleep mode, but if the button is
pressed for more than four seconds, the computer is
turned off.

After AC Power Lost

This item specifies whether your system will reboot after a power failure or
interrupt occurs. Available settings are:

Power Off Leaves the computer in the pow er off state.
Power On Leaves the computer in the power on state.
Last State Restores the system to the status before power failure or

interrupt occurred.

3-21

BIOS Setup

PM Wake Up Events

Press <Enter> and the following sub-menu appears:

IRQ [3-7, 9-15], NMI; IRQ 8 Break Suspend

These fields specify whether the system will be awakened from power
saving modes when activity or input signal of the specified hardware
peripheral or component is detected.

Wake Up On Ring, Wake Up On PME, USB Wakeup From S3

These fields specify whether the system will be awakened from power
saving modes when activity or input signal of the specified hardware
peripheral or component is detected.

MACPME Power Up Control

These fields specify whether the system will be awakened from power
saving modes when activity or input signal of onboard LAN is detected
only.

PS2KB Wakeup From S3/S4/S5

This setting allows you to wake up the system from S3/S4/S5 states with
the options of Any Key, Hot Key and Password (max. 8 numbers).

PS2MS Wakeup From S3/S4/S5

This controls how the PS/2 mouse can power on the system. Settings:
Click, Move & Click, Disabled.

MSI Reminds You...

S3-related functions described in this section are available
only when your BIOS supports S3 sleep mode.

3-22

MS-6540G Micro ATX Mainboard

Resume By Alarm

The field is used to enable or disable the function of Resume By Alarm.
Settings: Disabled, Enabled.

Month Alarm

When Resume By Alarm is set to Enabled, the field specifies the month for
Resume By Alarm. Settings: NA, 1-12.

Date of Month Alarm

When Resume By Alarm is set to Enabled, the field specifies the date for
Resume By Alarm. Settings: 0~31.

Time (hh:mm:ss) Alarm

When Resume By Alarm is set to Enabled, the field specifies the time for
Resume By Alarm. Format is <hour><minute><second>.

** Reload Global Timer Events **
Primary/Secondary IDE, FDD/COM/LPT Ports, PCI PIRQ [A-D]#

The global timer is the hardware timer that counts down to the power saving
modes. If the monitoring of the listed hardware peripherals or components is
enabled, the activity of the specified peripherals or components will awaken
the system or reload the original count of global timer when they are accessed.

3-23

BIOS Setup

PNP/PCI Configurations

This section describes configuring the PCI bus system and PnP (Plug & Play)
feature. PCI, or Peripheral Component Interconnect, is a system which allows
I/O devices to operate at speeds nearing the speed the CPU itself uses when
communicating with its special components. This section covers some very
technical items and it is strongly recommended that only experienced users
should make any changes to the default settings.

Clear ESCD

The ESCD (Extended System Configuration Data) NVRAM (Non-volatile
Random Access Memory) is where the BIOS stores resource information for
both PNP and non-PNP devices in a bit string format. When the item is set to
Enabled, the system will reset ESCD NVRAM right after the system is booted
up and then set the setting of the item back to Disabled automatically. Settings:
Disabled, Enabled.

Resources Controlled By

The Award Plug and Play BIOS has the capacity to automatically configure all
of the boot and Plug and Play compatible devices. However, this capability
means absolutely nothing unless you are using a Plug and Play operating
system such as Windows® 98/2000. If you set this field to “manual”, choose
specific resources by going into each sub-menu that follows this field. Settings:
Auto(ESCD), Manual.

3-24

MS-6540G Micro ATX Mainboard

IRQ Resources

The items are adjustable only when Resources Controlled By is set to Manual.
Press <Enter> and you will enter the sub-menu of the items.

IRQ Resources list IRQ 3/4/5/7/9/10/11/12/14/15 for users to set each IRQ a
type depending on the type of device using the IRQ. Settings are:

PCI Device For Plug & Play compatible devices designed for PCI

bus architecture.

Reserved The IRQ will be reserved for further request.

PCI/VGA Palette Snoop

When set to Enabled, multiple VGA devices operating on different buses can
handle data from the CPU on each set of palette registers on every video
device. Bit 5 of the command register in the PCI device configuration space is
the VGA Palette Snoop bit (0 is disabled). For example, if there are two VGA
devices in the computer (one PCI and one ISA) and the:

The setting must be set to Enabled if any ISA bus adapter in the system
requires VGA palette snooping.

VGA Palette
Snoop Bit Setting Action

Disabled D ata read or written by the CPU is only directed to the PCI

VGA device’s palette registers.

Enabled Data read or written by th e CPU is directed to both the PCI

VGA device’s palette registers and the ISA VGA device’s
palette registers, permitting the palette registers of both VGA
devices to be identical.

3-25

BIOS Setup

PC Health Status

This section shows the status of your CPU, fan, overall system status, etc.
Monitor function is available only if there is hardware monitoring mechanism
onboard.

Smart Fan Target Temp. (oC)

W83627THF provides the Smart Fan system which can control the fan speed
automatically depending on the current temperature to keep it with in a specific
range.

Smart Fan Temp. Tolerance

You can select a fan tolerance value here for the specific range for the “Smart
Fan Target Temp. (oC)” item. If the current temperature of the fan reaches to the
maximum threshold (the temperature set in the “Smart Fan Target Temp.(oC)”
plus the tolerance values you set here), the fan will speed up for cooling down.
On the contrary, if the current temperature reaches to the minimum threshold
(the set temperature minus the tolerance value), the fan will slow down to keep
the temperature stable.

Case Open Warning

The field enables or disables the feature of recording the chassis intrusion
status and issuing a warning message if the chassis is once opened. This item
is available only when your mainboard has JCI1 jumper. To clear the warning
message, set the field to Reset. The setting of the field will automatically return
to Enabled later. Settings: Enabled, Reset, Disabled.

3-26

MS-6540G Micro ATX Mainboard

System/CPU Temperature, CPU/System FAN Speed, Vcore, 3.3 V, +5 V, +12
V, -12 V, VBAT(V), 5VSB(V)

These items display the current status of all of the monitored hardware devices/
components such as CPU voltages, temperatures and all fans’ speeds.

3-27

BIOS Setup

Use this menu to specify your settings for frequency/voltage control.

Frequency/Voltage Control

CPU Clock Ratio

End users can overclock the processor (only if the processor supports so) by
specifying the CPU ratio (clock multiplier) in this field. It is available only when
“Set CPU Ratio” is set to Manual.

Auto Detect DIMM/PCI Clk

This item is used to auto detect the PCI slots. When set to Enabled, the
system will remove (turn off) clocks from empty PCI slots to minimize the
electromagnetic interference (EMI). Settings: Enabled, Disabled.

Spread Spectrum

When the motherboard’s clock generator pulses, the extreme values (spikes)
of the pulses creates EMI (Electromagnetic Interference). The Spread Spectrum
function reduces the EMI generated by modulating the pulses so that the
spikes of the pulses are reduced to flatter curves. If you do not have any EMI
problem, leave the setting at Disabled for optimal system stability and
performance. But if you are plagued by EMI, set to Enabled for EMI reduction.
Remember to disable Spread Spectrum if you are overclocking because even a
slight jitter can introduce a temporary boost in clock speed which may just

cause your overclocked processor to lock up.

CPU Frequency

Use this item to select the appropriate clock frequency of the CPU host bus.
Options are: 100MHz, 133MHz, 200MHz, Default.

3-28

MS-6540G Micro ATX Mainboard

Load Fail-Safe/Optimized Defaults

The two options on the main menu allow users to restore all of the BIOS
settings to the default Fail-Safe or Optimized values. The Optimized Defaults
are the default values set by the mainboard manufacturer specifically for optimal
performance of the mainboard. The Fail-Safe Defaults are the default values set
by the BIOS vendor for stable system performance.

When you select Load Fail-Safe Defaults, a message as below appears:

Pressing Y loads the BIOS default values for the most stable, minimal system
performance.

When you select Load Optimized Defaults, a message as below appears:

Pressing Y loads the default factory settings for optimal system performance.

3-29

BIOS Setup

Set Supervisor/User Password

MSI Reminds You...

About Supervisor Password & User Password:

Supervisor password: Can enter and change the settings of

the setup menu.

User password: Can only enter but do not have the

right to change the settings of the setup
menu.

When you select this function, a message as below will appear on the screen:

Type the password, up to eight characters in length, and press <Enter>. The
password typed now will replace any previously set password from CMOS
memory. You will be prompted to confirm the password. Retype the password
and press <Enter>. You may also press <Esc> to abort the selection and not
enter a password.

To clear a set password, just press <Enter> when you are prompted to enter the
password. A message will show up confirming the password will be disabled.
Once the password is disabled, the system will boot and you can enter Setup
without entering any password.

When a password has been set, you will be prompted to enter it every time you
try to enter Setup. This prevents an unauthorized person from changing any
part of your system configuration.

Additionally, when a password is enabled, you can also have BIOS to request
a password each time the system is booted. This would prevent unauthorized
use of your computer. The setting to determine when the password prompt is
required is the Security Option of the Advanced BIOS Feature menu. If the
Security Option is set to System, the password is required both at boot and at
entry to Setup. If set to Setup, password prompt only occurs when you try to
enter Setup.

A-1

Using 4- or 6-Channel Audio Function

Appendix: Using 4- or 6-Channel Audio

Function

The motherboard is equipped with Realtek ALC655 chip, which provides
support for 6-channel audio output, including 2 Front, 2 Rear, 1 Center and 1
Subwoofer channel. ALC655 allows the board to attach 4 or 6 speakers for
better surround sound effect. The section will tell you how to install and use 4­/6-channel audio function on the board.

A-2

MS-6540G Micro ATX Mainboard

Installing the Audio Driver

You need to install the driver for Realtek ALC655 chip to function properly
before you can get access to 4-/6-channel audio operations. Follow the proce­dures described below to install the drivers for different operating systems.

Installation for Windows 98SE/ME/2000/XP

For Windows® 2000, you must install Windows® 2000 Service Pack2 or
later before installing the driver.

The following illustrations are based on Windows® XP environment and
could look slightly different if you install the drivers in different operating
systems.

1. Insert the companion CD into the CD-ROM drive. The setup screen will

automatically appear. (Please note the screen below might be different

depending on the different mainboard you purchased.)

2. Click Realtek AC97 Audio Drivers.

MSI Reminds Y ou...

The AC97 Audio Configuration software utility is under con­tinuous update to enhance audio applications. Hence, the pro­gram screens shown here in this appendix may be slightly different
from the latest software utility and shall be held for r eference only .

A-3

Using 4- or 6-Channel Audio Function

3. Click Next to start installing files into the system.

4. Click Finish to restart the system.

Select this
option

A-4

MS-6540G Micro ATX Mainboard

Using the Back Panel

In addition to a default 2-channel analog audio output function, the audio
connectors on the Back Panel also provide 4- or 6-channel analog audio output
function if a proper setting is made in the software utility.

Read the following steps to have the Multi-Channel Audio Function
properly set in the software utility, and have your speakers correctly con­nected to the Back Panel.

Configuration in the Software Utility

1 . Click the audio icon from the window tray at the lower-right

corner of the screen.

2. Select a desired surround sound effect from the “Environment”
drop-down menu.

3 . Click the Speaker Configuration tab.
4 . Select Synchronize the phone jack switch with the settings.
5 . Select a desired multi-channel operation from No. of Speakers.

a. Headphone
b. 2-Channel Mode for Stereo-Speaker Output
c. 4-Channel Mode for 4-Speaker Output
d. 6-Channel Mode for 5.1-Speaker Output

6 . Click OK to close this window.

Using 4- or 6-Channel Audio Function

After installing the audio driver, you are able to use the 4-/6-channel
audio feature now . T o enable 4- or 6-channel audio operation, first connect 4 or
6 speakers to the appropriate audio connectors, and then select 4- or 6-channel
audio setting in the software utility.

A-5

Using 4- or 6-Channel Audio Function

2

3

4

5

6

A-6

MS-6540G Micro ATX Mainboard

Connecting the Speakers

When you have set the Multi-Channel Audio Function mode properly in

the software utility, connect your speakers to the correct phone jacks in

accordance with the setting in software utility.

 2-Channel Mode for Stereo-Speaker Output

Refer to the following diagram and caption for the function of each
phone jack on the back panel when 2-Channel Mode is selected.

1 Line In
2 Line Out (Front channels)
3 MIC

Back Panel

3

1

2

A-7

Using 4- or 6-Channel Audio Function

 4-Channel Mode for 4-Speaker Output

The audio jacks on the back panel always provide 2-channel analog
audio output function, however these audio jacks can be transformed
to 4- or 6- channel analog audio jacks by selecting the corresponding
multi-channel operation from No. of Speakers.

Refer to the following diagram and caption for the function of each
jack on the back panel when 4-Channel Mode is selected.

1 *Line Out (Rear channels)
2 Line Out (Front channels)
3 MIC

* Line In function is converted to
Line Out function when 4-Channel
Mode for 4-Speaker Output is
selected.

Back Panel

3

1

2

A-8

MS-6540G Micro ATX Mainboard

 6-Channel Mode for 6-Speaker Output

Refer to the following diagram and caption for the function of each
jack on the back panel when 6-Channel Mode is selected.

MSI Reminds Y ou...

If the Center and Subwoofer speaker exchange their audio
channels when you play video or music on the computer, a
converter may be required to exchange center and subwoofer
audio signals. You can purchase the converter from a speaker
store.

1 * Line Out (Rear channels)
2 Line Out (Front channels)
3 * Line Out (Center and Subwoofer channel)

* Both Line In and MIC function
are converted to Line Out
function when 6-Channel Mode
for 6-Speaker Output is selected.

Back Panel

3

1

2

A-9

Using 4- or 6-Channel Audio Function

Testing the Connected Speakers

MSI Reminds Y ou...

6 speakers appear on the “Speaker Test” window only when
you select “6-Channel Mode” in the “No. of Speakers” column.
If you select “4-Channel Mode”, only 4 speakers appear on the
window.

To ensure that 4- or 6-channel audio operation works properly , you may
need to test each connected speaker to make sure every speaker work properly.
If any speaker fails to make sound, then check whether the cable is inserted
firmly to the connector or replace the bad speakers with good ones.

Testing Each Speaker

1 . Click the audio icon from the window tray at the lower-right corner of

the screen.

2 . Click the Speaker Test tab.
3 . The following window appears. Select the speaker which you want to test

by clicking it.

Subwoofer

Front Right

Rear Right

Center

Front Left

Rear Left

A-10

MS-6540G Micro ATX Mainboard

4 . While you are testing the speakers in 6-Channel Mode, if the sound coming

from the center speaker and subwoofer is swapped, you should select
Swap Center/Subwoofer Output to readjust these two channels.

Select this function

A-11

Using 4- or 6-Channel Audio Function

Playing KaraOK

The KaraOK function will automatically remove human voice (lyrics) and
leave melody for you to sing the song. Note that this function applies only for
2-channel audio operation.

Playing KaraOK

1. Click the audio icon from the window tray at the lower-right corner of

the screen.

2. In the Sound Effect tab, select Voice Cancellation under “KaraOK.”

3. Click OK to close this window.

2

3