MSI KT4V-L User Manual

KT4AV

MS-6712 (v1.X) ATX Mainboard

G52-M6712XJ

i

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 ow n 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 w ith the emission limits.

V OIR LA NOTICE D’INSTALLATION AVANT DE RACCORDER AU RESEAU.

Micro-Star International
MS-6712

This device complies with Part 15 of the FCC Rules. O peration is subject to
the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference
that may cause undesired operation

ii

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.
Netw are® 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

V 1.5 Update CPU spec. for May 2004

KT4AV S eries

iii

Technical Support

If a problem arises with your system and no solution can be obtained from the
user’s manual, please contact your place of purchase or local distributor.
Alternatively, please try the following help resources for further guidance.

V isit the MSI website for FAQ, technical guide, BIOS updates, driver

updates, and other information: http://w ww.msi.com.tw/

Contact our technical staff at: s [e-mail]

Safety I nstructions

1. Always read the safety instructions carefu lly.

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

3. Keep this equipment away from h umidity.

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

5. The openi ngs on the enclosure are for air convection hence protects the equipment
from overheating. DO NOT COVER THE OPENINGS.

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

7. Place th e power cord such a way that people can not step on it. Do not place
a nything 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 liqui d into the opening that could damage or cause electrical shock.

11. If any of th e following situations arises, get the equipment checked by a service
personn el:

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

User’ s Manual.

l The equipment has dropped and damaged.
l The equipment h as obvious sign of breakage.

12. DO NOT L EAVE THIS EQUIPMENT IN AN ENV IRO NMENT
UNCON DITIONED, STORAGE TEMPERATURE ABOVE 600 C (1 400F), IT
MAY DAMAGE T HE EQUIPMENT.

CAUTION: Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the
manufacturer.

iv

CONTENTS

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

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

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

Technical Support.................................................................................... iv

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

Chapter 1. Gettin g Started .................................................................... 1-1

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

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

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

Live Monitor™ ..........................................................................1-5

D-Bracket™ 2 (Optional) ............................................................1-6

MSI D VD 5.1 Channel (Optional)................................................1-8

Live BIOS™/Live Driver™ ....................................................... 1-10

CPU Thermal Protection........................................................... 1-11

S-Bracket (Optional)................................................................. 1-11

Chapter 2. Hard ware Setup ................................................................... 2-1

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

Central Processing U nit: CPU ...........................................................2-3

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

Thermal Iss ue for CPU ...............................................................2-3

CPU Installation Procedures for Socket 462 ................................2-4

Installing AMD Athlon CPU (Socket 462) Cooler Set ..................2-5

CPU Clock Frequency Selection through BIOS ...........................2-6

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

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

DIMM Module Combination ......................................................2-8

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

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

v

ATX 20-P in Power Connector: JWR1 ..........................................2-9

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

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

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

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

Parallel Port Connector: LPT1................................................... 2-12

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

Serial Port Connectors: COM A & COM B................................ 2-14

RJ -45 LAN Jack (Optional) ....................................................... 2-14

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

Floppy Disk Drive Connector: FD D1 ........................................ 2-15

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

Fan Power Connectors: CFAN 1/SFAN1 .................................... 2-17

Front Panel Connectors: JFP1 & JFP2 .......................................2-18

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

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

D-Bracket™ 2 Connector: JLED1 .............................................. 2-21

S-Bracket Connector: JSP3 ....................................................... 2-22

IrDA Infrared Module H eader: JIR1 .......................................... 2-24

Chassis Intrusion Sw itch Connector: JCI1 ................................2-24

CD-In Connector: JCD1............................................................ 2-25

Jumpers .........................................................................................2-26

Clear CMOS Jumper: JBAT1 ..................................................... 2-26

Slots .............................................................................................. 2-27

AGP (Accelerated Graphics Port) Slot....................................... 2-27

PCI (Peripheral Component Interconnect) Slots ........................2-27

CNR (Communication N etwork Riser) Slot ................................ 2-27

PCI Interrupt Request Routing .................................................2-28

Chap ter 3. BIOS Setup.......................................................................... 3-1

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

vi

Selecting the First Boot Device...................................................3-2

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

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

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

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

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

Advanced Chipset Features ...........................................................3-13

Pow er Management Features.......................................................... 3-18

PNP/P CI Configurations ................................................................. 3-22

Integrated Peripherals .................................................................... 3-24

PC Health Status ............................................................................ 3-27

Frequency/Voltage Control .............................................................3-28

Set Supervisor/User Password ........................................................ 3-30

Load H igh Performance/BIOS Setup Defaults.................................. 3-31

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

Installing the A udio Driver ............................................................. A-2

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

Testing the Connected Speakers .................................................... A-14

Playing KaraOK ............................................................................ A-16

Troubleshooting....................................................................................T-1

Glossary .............................................................................................. G-1

vii

Getting Started

Getting Started

Thank you for purchasing the MS-6712 v1.X ATX
mainboard. The MS-6712 v1.X ATX mainboard is based on
VIA® Apollo KT400A North Bridge & VT8235 South Bridge
chipset for optimal system efficiency. Designed to fit the ad­vanced AMD® Athlon™, Athlon™ XP or Duron™ processors,
the MS-6712 delivers a high performance and professional desk­top platform solution.

1-1

MS-6712 ATX Mainboard

Mainboard Specifications

CPU

† Supports S ocket A (Socket-462) for AMD® Athlon™/Athlon™ XP /Duron™

processors
† S upports from 1100MHz up to 2800+ or higher speed
(For the latest information about CPU, please visit our Web s ite at http://www.
msi.com.tw/program/products/mainboard/mbd/pro_mbd_cpu_support.php)

Chipset

† VIA® KT400A North Bridge

- Supports 200/266/333MHz front s ide bus

- Supports DDR200/266/333/400*

- Supports AGP 4X and AGP 8X

† VIA® VT8235 South Bridge

- Integrated Direct Sound AC97 audio

- Dual channel Ultra DMA 33/66/100/133 master mode EIDE controller

- ACPI & PC2001 compliant enhanced power management

- Integrated USB 2.0 controller

Main Memory

† S upports six memory banks using three 184-pin DDR DIMMs
† Supports up to 3GB PC1600/2100/2700/3200* D DR SDRAMs
† Supports 2.5v DDR SDRAM

* Please refer to Glossary: Recommended DDR400 Modules for details.

Slots

† One A GP (Accelerated Graphics Port) 1.5V 8x/4x slot
† S ix 32-bit PCI bus slots (support 3.3v/5v PCI bus interface)
† One CNR (Communication Network Riser) slot

On -Board IDE

† An IDE controller on the VT8235 chips et provides IDE HDD/CD-ROM with

PIO, Bus Master and Ultra DMA133/100/66/33 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

1-2

Getting Started

2.88Mbytes

- 2 s erial ports (COM A + COM B)

- 1 parallel port supports SPP/EPP/ECP mode

- Vertical audio ports

- 1 SPD IF output (2 x 6 pin) with housing (Optional)

- 6 U SB ports (Rear * 4/ Front * 2)

Audio

† RealTek ALC650 6-channel audio

LA N

† VIA VT6103 LAN controller

BIOS

† The mainboard BIOS provides “Plug & Play” BIOS which detects the pe-

ripheral devices and expansion cards of the board automatically.
† The mainboard provides a Desktop Management Interface (DMI) function

which records your mainboard specifications.

Dimension

† ATX Form Factor: 30.5 cm (L) x 21 cm (W)

Moun ting

† 6 mounting holes

Others

† S uspend to RAM/Disk (S3/S4)
† PC2001 compliant
† Support WOL/WOR

1-3

MS-6712 ATX Mainboard

Mainboard Layout

Top : mouse
Bottom: keyboard

USB
port s

Top : Parallel Port

Bottom:
COM A
COM B

T: L AN j a ck
B: USB ports

T: M IC
M: Line-In
B: Line-Out

Winbond

W83697HF

S
O

I
B

JSP3

Codec

JCD1

BATT

CFAN1

1
D

D
F

1

2

3

R

R

R

D

D

D

D

D

D

VIA

VT6103

SOCKET 462

y

l
p
p
u

X

S

T

r

A

e
w
o
P

VIA

KT400A

AGP Slot

PCI Slot 1

PCI Slot 2

JCI1

JBAT1

JIR1

PCI Slot 3

PCI Slot 4

PCI Slot 5

PCI Slot 6

JLED1

VIA

VT8235

SFAN1

IDE 1

IDE 2

+

1-4

CNR

JAUD1

JUSB1

MS-6712 v1.X ATX Mainboard

JFP1

JFP2

Getting Started

MSI Special Features

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.

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

listed below:

zz

z Auto Search – Searches for the BIOS/drivers version you need immediately.

zz

zz

z View Last Result – Allows you to view the last search result if there is any.

zz

zz

z Preference – Configures the Search function, including the Search schedule.

zz

zz

z Exit – Exits the Live Monitor™ application.

zz
zz

z FAQ – Provides a link to a database which contents various possible questions

zz

about MSI's products for users to inquire.

1-5

MS-6712 ATX Mainboard

D-Bracket™ 2 (Optional)

D-Bracket™ 2 is a USB bracket integrating four Diagnostic LEDs, which
use graphic signal display to help users understand their system. The LEDs
provide up to 16 combinations of signals to debug the system. The 4 LEDs can
detect all problems that fail the system, such as VGA, RAM or other failures.
This special feature is very useful for overclocking users. These users can use
the feature to detect if there are any problems or failures. D-Bracket™ 2 sup­ports both USB 1.1 & 2.0 spec.

D-Bracket™ 2 for mainboard with bluetooth

connector (1 port)

1 2

3 4

D-Bracket™ 2 for mainboard without

bluetooth connector (2 ports)

D-Bracket™ 2 Description

System Power ON

- The D-LED will hang here if the processor is damaged or

not installed properly.

Early Chipset Initialization

Memory Detection Test

- Testing onboard memory size. The D-LED will hang if the

memory module is damaged or not installed properly.

Testing VGA BIOS

Decompressing BIOS image to RAM for fast booting.

Initializing Keyboard Controller.

- This will start writing VGA sign-on message to the screen.

1-6

Getting Started

Red

Green

D-Bracket™ 2 Description

Processor Initialization

- This will show information regarding the processor (like

brand name, system bus, etc…)

Initializing Video Interface

BIOS Sign On

Testing Base and Extended Memory

Initializing Hard Drive Controller

Initializing Floppy Drive Controller

Boot Attempt

Operating System Booting

Testing RTC (Real Time Clock)

- This will start detecting CPU clock, checking type of video

onboard. Then, detect and initialize the video adapter.

- This will start showing information about logo, processor

brand name, etc….

- Testing base memory from 240K to 640K and extended

memory above 1MB using various patterns.

Assign Resources to all ISA.

- This will initialize IDE drive and controller.

- This will initializing Floppy Drive and controller.

- This will set low stack and boot via INT 19h.

1-7

MS-6712 ATX Mainboard

MSI DVD 5.1 Channel (Optional)

The motherboard comes with MSI DVD application which supports 5.1
channel (6-channel audio) operation. The accompanying MSI DVD is a conve­nient tool to meet increasing demands for home entertainment.

To play DVD with 6-channel audio output, you must configure both the
MSI DVD application and the audio codec’s software utility. Otherwise, the 6­channel audio function will not work properly. For information on how to
select 6-channel mode in the audio software utility, refer to Appendix. Using 4-
or 6-Channel Audio Function.

Follow the procedures below to enable 6-channel support with MSI DVD:

1. Click on this button from the control panel of MSI DVD.

2. Click the Audio tab.

3. Select 6 speaker mode (5.1 channel).

MSI Reminds You...

MSI DVD supports Dolby Digital format only. To view DTS­formatted video, you should convert it to Dolby Digital format
first.

1-8

Getting Started

4. Click OK.

For more information about MSI DVD, you can refer to the online help coming
with the application.
To enter the online help:

1. Click on the icon at the bottom-right corner of the control panel.

2. The following window appears.

Click here

3. Click MSIDVD FAQ.

1-9

MS-6712 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.

zz

z Live BIOS – Updates the BIOS online.

zz

zz

z Live Driver – Updates the drivers online.

zz

zz

z Live VGA BIOS – Updates the VGA BIOS online.

zz

zz

z Live VGA Driver – Updates the VGA driver online.

zz
zz

z Live Utility – Updates the utilities online.

zz

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.

1-10

Getting Started

CPU Thermal Protection

Aimed to prevent the CPU from overheating, MSI has developed a CPU
Thermal Protection mechanism for AMD Athlon™ XP CPU platform. This CPU
Thermal Protection mechanism works on a thermal signal sensor. If the
mechanism senses an abnormal temperature rise, it will automatically shut down
the system and the CPU temperature will then drop down and resume normal.
With this unique feature, users can better protect their CPU. Please note that
this feature is for AMD Athlon™ XP CPU only.

S-Bracket (Optional)

S-Bracket is a bracket which provides 2 SPDIF jacks for digital audio
transmission and 2 analog Line-Out connectors for additional 4-channel ana­log audio output. With the S-Bracket, your system will be able to perform 6­channel audio operation for wonderful surround sound effect, or connect to
Sony & Philips Digital Interface (SPDIF) speakers for audio transmission with
better quality.

The S-Bracket offers two types of SPDIF connectors: one for optical
fiber and the other for coaxial connection. Select the appropriate one to meet
your own need. For more information on S-Bracket, refer to Appendix. Using
4- or 6-Channel Audio Function.

SPDIF jack (optical)

S-Bracket

SPDIF jack (coaxial)

CEN/SUB RL/RR

Analog Line-Out jacks

1-11

Hardware Setup

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. Also, it 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.

2-1

MS-6712 ATX Mainboard

Quick Components Guide

Back Panel
I/O, p.2-10

JCD1, p.2-25

JCI1, p.2-24

JSP3, p.2-22
JIR1, p.2-24

JBAT1, p.2-26

JWR1, p.2-9

CPU, p.2-3

CFAN1, p.2-17

DDR DIMMs, p.2-7

FDD1, p.2-15

AGP Slot, p.2-27

PCI Slots, p.2-27

SFAN1, p.2-17

IDE1
IDE2, p.2-16

2-2

CNR Slot, p.2-27

JAUD1, p.2-19

JLED1, p.2-21

JFP1 & JFP2,

p.2-18

JUSB1, p.2-20

Hardware Setup

Central Pr ocessing Unit: CPU

The mainboard supports AMD® Athlon™, Athlon™ XP and Duron™

processors in the 462 pin package. The mainboard uses a CPU socket called
Socket A 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.

CPU Core Speed Derivation Procedure

If CPU Clock = 100MHz

Core/Bus ratio = 14

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

= 100MHz x 14
= 1.4 GHz

WARNING!

As processor technology pushes to faster speeds and higher performance, ther­mal ma nagement becomes increasingly crucial when building computer
systems. Maintaining the proper thermal environment is key to reliable
operation. As such, the process or must be maintained in the specified thermal
requirements.

AMD Athlon™/Duron™/Athlon™ XP processor with a speed of 1100MHz
and above requires a LARGER heatsink and fan. You also need to add thermal
grease between the CPU and heatsink to improve heat dissipation. Then, make
sure that the CPU and heatsink are securely fastened and in good contact with
each other. These are needed to prevent damaging the processor and ensuring
reliable operation. If you want to get more information on the proper cooling,
you can visit AMD’s website for reference.

Thermal Issue for CPU

2-3

MS-6712 ATX Mainboard

CPU Installation Procedures for Socket 462

1. Please turn off the power and

unplug the power cord before
installing the CPU.

Open Lever

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.

Sliding

Plate

Gold arrow

Gold arrow

Gold arrow

Press down

the CPU

90 degree

Correct CPU placem ent

O

Incorrect CPU placem en t

X

Close
Lever

2-4

Hardware Setup

Installing AMD Athlon CPU (Socket 462) Cooler Set

The following instructions will guide
you through the heat sink installation
procedures. Please consult your agent
for the proper CPU cooler set.

1. Position your CPU cooler set onto
the CPU.

2. Use one end of the clip to hook
the latch of the CPU sliding plate.

3. Hook the other latch to fix the
cooling fan set. You may need a
screw drive to press down the
other side of the clip.

Apply some heat

sink paste

4. Connect the fan to the power sup­ply connector provided on your
mainboard.

MSI Reminds You...

Please apply some heat sink paste on top of your CPU to
dissipate the heat more effectively.

2-5

MS-6712 ATX Mainboard

CPU Clock Frequency Selection through BIOS

The hardware configuration for CPU clock frequency of the motherboard
is set to 100MHz by default. Therefore, to make a 133MHz CPU run at
133MHz when it is installed on the board, you have to adjust the CPU clock
frequency in the BIOS setup utility.

To set the clock frequency for the installed CPU, refer to Frequency/
Voltage Control in Chapter 3. BIOS Setup.

MSI Reminds You...

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.

Overclocking

This motherboard is designed to support overclocking.
However, please make sure your components are able to toler­ate such abnormal setting, while doing overclocking. Any at­tempt to operate beyond product specifications is not
recommended. We do not guarantee the damages or risks

caused by inadequate operation or beyond product
specifications.

2-6

Hardware Setup

Memory

The mainboard provides 3 slots for 184-pin DDR SDRAM DIMM
(Double In-Line Memory Module) modules and supports the memory size up
to 3GB. You can install PC3200/DDR400, PC2700/DDR333, PC2100/
DDR266 or PC1600/DDR200 modules on the DDR DIMM slots. Please note
that the mainboard supports only one DDR400 DIMM.

DDR DIMM Slots

(DDR 1~3)

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. High memory
bandwidth makes DDR an ideal solution for high performance PC, worksta­tions and servers.

2-7

MS-6712 ATX Mainboard

DIMM Module Combination

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

Memory modules can be installed in any combination as follows:

Slot Memory Module Total Memory

DIMM 1 S/D 64MB~1GB
(Bank 0 & 1)
DIMM 2 S/D 64MB~1GB
(Bank 2 & 3)
DIMM 3 S/D 64MB~1GB
(Bank 4 & 5)

Maximum System Memory Suppported 64MB~3GB

S: Single Side D: Double Side

Installing DDR Modules

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

ule 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.

2-8

Volt

Notch

MSI Reminds You...

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

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.

ATX 20-Pin Power Connector: JWR1

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.

11

20

JWR1

1

10

JWR1 Pin Definition

PIN SIGNAL

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

PIN SIGNAL

11 3.3V
12 -12V
13 GND
14 PS_ON
15 GND
16 GND
17 GND
18 -5V
19 5V
20 5V

2-9

MS-6712 ATX Mainboard

Back Panel

The back panel provides the following connectors:

LAN

Mouse

Parallel

(Optional)

MIC

L-in

L-out

Keyboard

USB

COM A COM B

USB

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 Definition

6

4

2

5

3

1

PS/2 Mouse (6-pin Female)

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

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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.

Pin Definition

6

4

2

PS/2 Keyboard (6-pin Female)

5

3

1

PIN SIGNAL DESCRIPTION

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

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.

1 2 3 4

5 6 7 8

USB Ports

USB Port Description

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

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MS-6712 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

25

14

Pin Definition

PIN SIGNAL DESCRIPTION

1 STROBE Strobe
2 DATA0 Data0
3 DATA1 Data1
4 DATA2 Data2
5 DATA3 Data3
6 DATA4 Data4
7 DATA5 Data5
8 DATA6 Data6
9 DATA7 Data7
10 ACK# Acknowledge
11 BUSY Busy
12 PE Paper End
13 SELECT Select
14 AUTO FEED# Automatic Feed
15 ERR# Error
16 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

2-12