MSI 865GM2-LS - Motherboard - Micro ATX, MEGA 865 - MEGA - 865, 865GM2, 865PEM2 User Manual
i
Version 1.1
G52-M6743X4
865GM2 / 865PEM2
MS-6743 (v1.X) Micro ATX Mainboard
ii
Manual Rev: 1.1
Release Date: May 2003
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-6743
Tested to comply
with FCC Standard
For Home or Office Use
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
V1.0 First release for PCB 1.x April 2003
V1.1 Add 1394 connetor May 2003
BIOS, add CPU Smart Fan
Temperature and CPU Fan
Tolerance Value
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:
z The power cord or plug is damaged.
z Liquid has penetrated into the equipment.
z The equipment has been exposed to moisture.
z The equipment has not work well or you can not get it work according
to User’s Manual.
z The equipment has dropped and damaged.
z 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 .......................................... iii
Copyright Notice .......................................................................................... iii
Revision History ........................................................................................... iii
Technical Support ......................................................................................... iii
Safety Instructions ....................................................................................... v
Chapter 1. Getting Started ........................................................................ 1-1
Mainboard Specifications .................................................................... 1-2
Mainboard Layout ............................................................................... 1-4
MSI Special Features ........................................................................... 1-5
Live BIOS™/Live Driver™ ............................................................ 1-5
Live Monitor™ .............................................................................. 1-6
PC Alert™ 4 ................................................................................... 1-7
Chapter 2. Hardware Setup ....................................................................... 2-1
Quick Components Guide .................................................................... 2-2
Central Processing Unit: CPU .............................................................. 2-3
CPU Core Speed Derivation Procedure ......................................... 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
DIMM Module Combination ......................................................... 2-8
Installing DDR Modules ............................................................... 2-8
Power Supply ....................................................................................... 2-9
ATX 20-Pin Power Connector: ATX1 ............................................ 2-9
ATX 12V Power Connector: JPW1 ................................................ 2-9
Back Panel .......................................................................................... 2-10
Mouse Connector ....................................................................... 2-11
Keyboard Connector ................................................................... 2-11
RJ-45 LAN Jack (Optional) .......................................................... 2-12
vi
USB Connectors .......................................................................... 2-12
VGA Connector ........................................................................... 2-13
Audio Port Connectors ............................................................... 2-13
IEEE1394 Port (Optional) ............................................................ 2-14
Serial Port Connectors: COMA/B ................................................ 2-14
Parallel Port Connectors: LPT1 .................................................... 2-15
Connectors ......................................................................................... 2-16
Front Disk Drive Connector: FDD1 ............................................. 2-16
Hard Disk Connectors: IDE1 & IDE2 ........................................... 2-17
Fan Power Connectors: CPU_FAN/SYSTEM_FAN .................... 2-18
CD-In Connector: JCD1 ............................................................... 2-19
SPDIF Connector: JSPD1(Optional) ............................................ 2-19
IrDA Infrared Module Header: JIR1 (865PE only) ....................... 2-20
Chassis Intrusion Switch Connector: JCI1 .................................. 2-20
Front Panel Connector: JFP1 ....................................................... 2-21
Serial ATA Connectors: SATA1/SATA2 ..................................... 2-22
Front Panel Audio Connector: JAUD1 ........................................ 2-24
Front USB Connectors: JUSB1/JUSB2 ........................................ 2-25
IEEE 1394 Connector: J1394_1 ..................................................... 2-26
Jumpers .............................................................................................. 2-28
Clear CMOS Jumper: JBAT1 ........................................................ 2-28
Slots ................................................................................................... 2-29
AGP (Accelerated Graphics Port) Slots ....................................... 2-29
PCI (Peripheral Component Interconnect) Slots .......................... 2-29
CNR (Communication Network Riser) Slots ................................ 2-29
PCI Interrupt Request Routing .................................................... 2-30
Chapter 3. BIOS Setup .............................................................................. 3-1
Entering Setup ...................................................................................... 3-2
Control Keys ................................................................................. 3-2
vii
Getting Help .................................................................................. 3-3
The Main Menu ................................................................................... 3-4
Standard CMOS Features .................................................................... 3-6
Advanced BIOS Features .................................................................... 3-9
Advanced Chipset Features ............................................................... 3-13
Integrated Peripherals ........................................................................ 3-16
Power Management Setup ................................................................. 3-23
PNP/PCI Configurations ..................................................................... 3-27
PC Health Status ................................................................................ 3-29
Frequency/Voltage Control ................................................................ 3-31
Load High Performance/BIOS Setup Defaults .................................... 3-33
Set Supervisor/User Password ........................................................... 3-34
Appendix: Using 2-, 4- or 6-Channel Audio Function ............................... A-1
Installing C-Media Driver ....................................................................A-2
Hardware Configuration ...................................................................... A-4
Software Configuration ....................................................................... A-5
Using 2-, 4- or 6-Channel Audio Function ........................................ A-18
Troubleshooting ........................................................................................ T-1
Glossary .................................................................................................... G-1
1-1
Getting Started
Chapter 1. Getting
Started
Thank you for purchasing the MS-6743 v1.X M-ATX
mainboard. The MS-6743 is based on Intel® Springdale-G/PE
& Intel® ICH5 chipsets for optimal system efficiency. Designed
to fit the advanced Intel® Pentium 4 processor in the 478-pin
package, MS-6743 delivers a high performance and professional
desktop platform solution.
Getting Started
1-2
MS-6743 M-ATX Mainboard
Mainboard Specifications
CPU
h Supports Socket 478 for Intel® Pentium 4 (Socket 478) processor
h Supports 533MHz or 800MHz FSB
h Supports 3.06GHz or higher speed P4 processor
Chipsets
h Intel® Springdale-865G/865PE chipset
- Supports AGP 8x/4x at 0.8V (AGP 3.0) or 4x at 1.5V (not supports 3.3V)
- Integrated graphic controller (865G only)
- Supports 133/166/200MHz memory FSB
- Supports 400/533/800MHz Intel NetBurst micro-architecture bus.
h Intel® ICH5 chipset (421 mBGA)
- AC’97 2.3 interface
- 8 USB 2.0/1.1 ports
- 2 channel Ultra ATA/100 Bus Master IDE controller
- SMBus 2.0 support
- 2 serial ATA Host Controllers
- Integrated LAN controller
Main Memory
h Supports four 64-bit wide DDR data channels
h Available bandwidth up to 3.2GB/s (DDR 400) for single-channel mode
and 8.4 GB/s (DDR 400) for dual-channel mode
h Supports 128Mb, 256Mb or 512Mb DDR technologies
h Supports only x8, x16 DDR devices with 4-bank
Slots
h One AGP supports 8x/4x at 0.8V (AGP 3.0) or 4x at 1.5V (not support 3.3V)
h Three PCI 2.2 32-bit Master PCI Bus slots.
h Supports 3.3v/5v PCI bus Interface.
h One CNR slot
On-Board IDE
h An IDE controller on the ICH5 chipset provides IDE HDD/CD-ROM with
PIO, Bus Master and Ultra DMA66/100/133 operation modes.
h Can connect up to four IDE devices.
1-3
Getting Started
On-Board Peripherals
h On-Board Peripherals include:
- 1 floppy port supports 2 FDD with 360K, 720K, 1.2M, 1.44M and 2.88
Mbytes.
- 1 serial port, 1 VGA port (865G) or 2 serial ports (865PE)
- 1 parallel port supports SPP/EPP/ECP mode
- 8 USB 2.0/1.1 ports (Rear * 4 / Front * 4)
- 1 Line-In/Line-Out/Mic
- 1 RJ45 connector (Optional)
- 2 1394 ports (Rear*1 / Front*1) (Optional)
Audio
h AC97 link controller integrated in ICH5
h 6 channels software audio codec C-Media 9739A
- Compliant with AC97 v2.2 spec.
- Meet PC2001 audio performance requirement
- Can support SPDIF Out via bracket only
On-Board LAN
h Intel 82562EZ
- Integrated 10/100 Ethernet MAC and PHY in one chip
- Supports 10Mb/s and 100Mb/s auto-negotiation operation
- Compliant with PCI v2.2, and LAN on Motherboard (LOM) standard
On-Board 1394
h NEC PD72874
BIOS
h The mainboard BIOS provides “Plug & Play” BIOS which detects the pe-
ripheral devices and expansion cards of the board automatically.
h The mainboard provides a Desktop Management Interface (DMI) function
which records your mainboard specifications.
Dimension
h M-ATX Form Factor: 24.5 cm (L) x 24.5 cm (W)
Mounting
h 6 mounting holes
1-4
MS-6743 M-ATX Mainboard
Mainboard Layout
MS-6743 v1.X M-ATX Mainboard
D
D
R
1
D
D
R
3
D
D
R
2
D
D
R
4
AGP Slot
T: mouse
B: keyboard
T:
Line-Out
B:Mic
Line-In
M:
JSPD1
CNR
JAUD1
JCD1
Codec
NEC
D72874GC
BATT
+
BIOS
W
i
n
b
o
n
d
8
3
6
2
7
H
F
-
A
W
ICH5
Intel
Springdale
865PE/G
I
D
E
1
I
D
E
2
F
D
D
1
PCI Slot 1
PCI Slot 2
PCI Slot 3
CPU_FAN
SYSTEM_FAN
JFP1
JIR1
JPW1
Intel
82562EZ
A
T
X
P
o
w
e
r
S
u
p
p
l
y
J1394_1
JBAT1
JCI1
JUSB1
SATA2
SATA1
JUSB2
1-5
Getting Started
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 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
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.
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.
MSI Special Features
1-6
MS-6743 M-ATX Mainboard
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 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
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
about MSI's products for users to inquire.
1-7
Getting Started
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:
Ø monitor CPU & system temperatures
Ø monitor fan speeds
Ø 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 Alert™ 4 icon on the Status Area will show the current CPU
temperature.
Temperature
Modes
Adjusting Keys
COOLER XP
1-8
MS-6743 M-ATX Mainboard
To better protect the CPU from overheating, a new feature, COOLER
XP, has been added to decrease the temperature of AMD Athlon™ XP CPU.
To do so, simply click COOLER XP and the screen will show the Cute skin (as
shown below) with information about the CPU and chipset. Right-click the
mouse to select the skin you want to switch to.
Cute
MSI Reminds You...
1. The new feature COOLER XP will work only if your mainboard
supports AMD Athlon™ XP CPU.
2. Items shown on PC Alert 4 vary depending on your system’s
status.
3. Whenever the minimum or maximum threshold of each item has
been changed, please close the PC Alert 4 program for the new
settings to take effect.
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. 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.
Hardware Setup
2-2
MS-6743 M-ATX Mainboard
Quick Components Guide
JCD1, p.2-19
JPW1, p.2-9 CPU, p.2-3
Back Panel
I/O, p.2-10
CPU_FAN1, p.2-18
FDD1, p.2-16
STAT2
SATA1, p.2-22
CNR1, p.2-29
JCI1, p.2-20
JSPD1, p.2-19
JFP1, p.2-21
JIR1, p.2-20
DDR DIMMs, p.2-7
ATX1, p.2-9
JAUD1, p.2-24
JUSB1, p.2-25
AGP slot, p.2-29
J1394_1, p.2-26
JBAT1, p.2-28
JUSB2, p.2-25
PCI slots, p.2-29
IDE1
IDE2, p.2-17
SYSTEM_FAN1, p.2-18
2-3
Hardware Setup
Central Processing Unit: CPU
CPU Core Speed Derivation Procedure
CPU Clock multiplied by Core/Bus ratio equals the CPU core speed.
For example:
If CPU Clock = 100MHz
Core/Bus ratio = 14
then CPU core speed = Host Clock x Core/Bus ratio
= 100MHz x 14
= 1.4 GHz
The mainboard supports Intel® Pentium® 4/Celeron Northwood/Prescott
processor 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.
2-4
MS-6743 M-ATX Mainboard
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 cut edge. The cut
edge 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.
CPU Installation Procedures for Socket 478
Open Lever
Sliding
Plate
Dot / Cut edge
Close
Lever
Press down
the CPU
90 degree
Dot / Cut edge
Correct CPU placement
Dot / Cut edge
Incorrect CPU placement
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-6743 M-ATX Mainboard
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.
5. Connect the fan power cable from the mounted fan to the 3-pin fan power connector
on the board.
fan power cable
2-7
Hardware Setup
The mainboard provides 2 slots for 184-pin DDR SDRAM DIMM
(Double In-Line Memory Module) modules and supports the memory size up
to 2GB. You can install DDR400/DDR333/DDR266 modules on the DDR
DIMM slots (DDR 1~2).
Memory
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.
D
I
M
M
1
D
I
M
M
2
D
I
M
M
3
D
I
M
M
4
2-8
MS-6743 M-ATX Mainboard
DIMM 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 doublesided 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 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.
S: Single Side D: Double Side
Slot Memory Module Total Memory
DIMM 1
(Bank 0 & 1)
S/D 64MB~1GB
DIMM 2
(Bank 2 & 3)
S/D 64MB~1GB
Maximum System Memory Supported
64MB~2GB
MSI Reminds You...
You can barely see the golden finger if the module is properly
inserted in the socket.
Volt
Notch
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.
ATX 20-Pin Power Connector: ATX1
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.
ATX 12V Power Connector: JPW1
This 12V power connector is used to provide power to the CPU.
PIN SIGNAL
11 3.3V
12 -12V
13 GND
14 PS_ON
15 GND
16 GND
17 GND
18 -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
ATX1 Pin Definition
PIN SIGNAL
1 GND
2 GND
3 12V
4 12V
JPW1 Pin Definition
JPW1
1
3
4
2
ATX1
10
1
20
11
2-10
MS-6743 M-ATX Mainboard
The back panel provides the following connectors:
Back Panel
For Springdale-PE
For Springdale-G
Mouse
Keyboard USB
Parallel
COM A
VGA
L-out
L-in
MIC
USB
LAN
Mouse
Keyboard USB
Parallel
COM A
COM B
L-out
L-in
USB
LAN
MIC
(Optional)
(Optional)
(Optional)
1394
(Optional)
1394
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.
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
Pin Definition
PS/2 Keyboard (6-pin Female)
2
1
3
4
5
6
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
2-12
MS-6743 M-ATX Mainboard
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.
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
USB Ports
1 2 3 4
5 6 7 8
RJ-45 LAN Jack (Optional)
The mainboard provides a RJ-45 connector that allows your computer
to be connected to a network environment.
LAN Jack
(RJ-45)
Activity
Indicators
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
2-13
Hardware Setup
VGA Connector
The mainboard provides a DB 15-pin female connector to connect a
VGA monitor.
Pin Signal Description
1 RED
2 GREEN
3 BLUE
4 N/C
5 GND
6 GND
7 GND
8 GND
9 +5V
10 GND
11 N/C
12 SDA
13 Horizontal Sync
14 Vertical Sync
15 SCL
VGA Connector
(DB 15-pin)
1
5
11
15
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-In is a
connector for microphones.
1/8” Stereo Audio Connectors
Line Out
Line In
MIC
2-14
MS-6743 M-ATX Mainboard
Serial Port Connectors: COM A/B
The mainboard offers two 9-pin male DIN connectors, COM A/B. Both
are 16550A high speed communication ports that send/receive 16 bytes FIFOs.
You can attach a serial mouse or other serial device directly to them.
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 Terminal 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
9-Pin Male DIN Connector
COM A /B
1 2 3 4 5
6 7 8 9
IEEE1394 Port (Optional)
The mainboard provides one standard IEEE1394 port.
The standard IEEE1394 port connects to IEEE1394 devices
without external power. The IEEE1394 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.
2-15
Hardware Setup
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 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
Pin Definition
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