MSI KM4M Series User manual

i
Version 1.0
G52-M6734X1
MS-6734 (v1.X) M-ATX Mainboard
KM4M Series

ii
Manual Rev: 1.0
Release Date: June 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 equip-
ment is operated in a commercial environment. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accor-
dance 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 respon-
sible 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-6734
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.
PS/2 and OS®/2 are registered trademarks of International Business Machines
Corporation.
Windows®95/98/2000/NT/XP are registered trademarks of Microsoft
Corporation.
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.
Revision History
Revision Revision History Date
V1.0 First release June 2003
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.
Visit the MSI website for FAQ, technical guide, BIOS updates, driver
updates, and other information: http://www.msi.com.tw/
Contact our technical staff at: [email protected]

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 electri-
cal shock.
11. If any of the following situations arises, get the equipment checked by a
service personnel:
zThe power cord or plug is damaged.
zLiquid has penetrated into the equipment.
zThe equipment has been exposed to moisture.
zThe equipment has not work well or you can not get it work according
to User’s Manual.
zThe equipment has dropped and damaged.
zThe equipment has obvious sign of breakage.
12. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT
UNCONDITIONED,STORAGETEMPERATUREABOVE600 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.

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CONTENTS
FCC-B Radio Frequency Interference Statement ........................................... ii
Copyright Notice .......................................................................................... iii
Revision History ........................................................................................... iii
Technical Support ......................................................................................... iii
Safety Instructions ....................................................................................... iv
Chapter 1. Getting Started ........................................................................ 1-1
Mainboard Specifications .................................................................... 1-2
Mainboard Layout ............................................................................... 1-4
Chapter 2. Hardware Setup ....................................................................... 2-1
Quick Components Guide .................................................................... 2-2
Central Processing Unit: CPU .............................................................. 2-3
CPU Core Speed Derivation Procedure ......................................... 2-3
Thermal Issue 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
Memory Speed/CPU FSB Support Matrix ..................................... 2-7
DIMM 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
Parallel Port Connector: LPT1 ...................................................... 2-12

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Serial Port Connector: COM1 ...................................................... 2-13
RJ-45 LAN Jack (Optional) .......................................................... 2-13
IEEE1394Port .............................................................................. 2-14
VGA DB 15 Pin Connector .......................................................... 2-14
Audio Port Connectors ............................................................... 2-15
Connectors ......................................................................................... 2-16
Floppy Disk Drive Connector: FDD1 ........................................... 2-16
Hard Disk Connectors: IDE1 & IDE2 ........................................... 2-17
Fan Power Connectors: CPUFA1/SYSFA1 .................................. 2-18
Front Panel Connectors: JFP1 & JFP2 ......................................... 2-19
Front Panel Audio Connector: JAUD1 ........................................ 2-20
Front USB Connectors: JUSB2, JUSB3 & JUSB4 (reserved) ....... 2-21
IEEE 1394 Connectors: J1394_1 & J1394_2 .................................. 2-22
CD-In Connector: JCD1 ............................................................... 2-23
SPDIF-Out Connector: JSP1 ........................................................ 2-23
IrDA Infrared Module Header: JIR1 ............................................ 2-24
Chassis Intrusion Switch Connector: JCI1 .................................. 2-24
SM Bus Connector: J1 ................................................................. 2-25
Jumpers .............................................................................................. 2-26
Clear CMOS Jumper: JBAT1 ........................................................ 2-26
CPU Frequency Jumpers: SW1 & SW2 ....................................... 2-27
Slots ................................................................................................... 2-28
AGP (Accelerated Graphics Port) Slot ......................................... 2-28
PCI (Peripheral Component Interconnect) Slots .......................... 2-28
PCI Interrupt Request Routing .................................................... 2-29
Chapter 3. BIOS Setup .............................................................................. 3-1
Entering Setup ...................................................................................... 3-2
Control Keys ................................................................................. 3-2
Getting Help .................................................................................. 3-3
The Main Menu ................................................................................... 3-4

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Standard CMOS Features .................................................................... 3-6
Advanced BIOS Features .................................................................... 3-8
Advanced Chipset Features ............................................................... 3-11
Integrated Peripherals ........................................................................ 3-15
Power Management Features ............................................................. 3-20
PNP/PCI Configurations ..................................................................... 3-25
PC Health Status ................................................................................ 3-27
Frequency/Voltage Control ................................................................ 3-28
Load Fail-Safe/Optimzed Defaults ...................................................... 3-29
Set Supervisor/User Password ........................................................... 3-30
Appendix: Using 4- or 6-Channel Audio Function .................................... A-1
Installing the Audio Driver ................................................................. A-2
Using 4- or 6-Channel Audio Function ............................................... A-4
Testing the Connected Speakers ......................................................... A-9
Playing KaraOK ................................................................................ A-11
Troubleshooting ........................................................................................ T-1
Glossary .................................................................................................... G-1

1-1
Getting Started
Thank you for purchasing the MS-6734 v1.X M-ATX
mainboard. The MS-6734 v1.X M-ATX mainboard is based on
VIA®Apollo KM400/400A North Bridge & VT8235/8237 South
Bridge chipset for optimal system efficiency. Designed to fit the
advanced AMD®Athlon™, Athlon™ XP or Duron™
processors, the MS-6734 delivers a high performance and pro-
fessional desktop platform solution.
Getting Started

1-2
MS-6734 M-ATX Mainboard
Mainboard Specifications
CPU
hSupports Socket A (Socket-462) for AMD®Athlon™/Athlon™ XP /Duron™
processors
hSupports AMD Athlon XP 2800+ & Barton
Chipset
hVIA®KM400/400A North Bridge
- Supports 200/266/333/400*MHz front side bus (*for KM400A only)
- Supports DDR200/266/333/400* (*for KM400A only)
- Supports AGP 4X and AGP 8X
hVIA®VT8235/8237 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
* 8235 supporting 6 ports
* 8237 supporting 8 ports
- Integrated S-ATA 150 supporting 2 ports (8237 only)
MainMemory
hSupports four memory banks using two 184-pin DDR DIMMs
hSupports up to 2GB PC1600/2100/2700/3200* DDR SDRAMs
Slots
hOne AGP (Accelerated Graphics Port) 1.5V 8x/4x slot
hThree 32-bit PCI bus slots (support 3.3v/5v PCI bus interface)
On-BoardIDE
hAn IDE controller on the VT8235/8237 chipset provides IDE HDD/CD-ROM
with PIO, Bus Master and Ultra DMA133/100/66/33 operation modes
hCan connect up to four IDE devices
On-Board Peripherals
hOn-Board Peripherals include:
- 1 floppy port supports 2 FDDs with 360K, 720K, 1.2M, 1.44M and
2.88Mbytes

1-3
Getting Started
- 1 serial port and 1 VGA port
- 1 parallel port
- Vertical audio ports
- 1 RJ-45 LAN Jack
- 1 SPDIF output (1 x 3 pin) with housing
- 8 USB ports (Front USB header x 2 set; USB connector x 4 on rear IO)
- 3 ports with VIA 6306 PCI 1394 controller (2 ports on front; 1 port on rear)
Audio
hRealTek ALC655 6-channel audio
IEEE1394
hVIA VT6306
LAN
hVIA VT6103 LAN controller
BIOS
hThe mainboard BIOS provides “Plug & Play” BIOS which detects the pe-
ripheral devices and expansion cards of the board automatically.
hThe mainboard provides a Desktop Management Interface (DMI) function
which records your mainboard specifications.
Dimension
hATX Form Factor: 9.6 in. (L) x 8.85 in. (W)
Mounting
h6 mounting holes
Others
hSuspend to RAM/Disk (S3/S4)
hPC2001 compliant
hWHQL HCT 11.0 compliant

1-4
MS-6734 M-ATX Mainboard
Mainboard Layout
MS-6734 v1.X M-ATX Mainboard
SOCKET462
AGP Slot
Top : mouse
Bottom: keyboard
T:1394 port
B:USB ports
T: R J 4 5 L A N j a c k
B: USB ports
JCD1
VIA
VT6306
VIA
VT6103
JSP1
J1394_2
J1394_1
Codec
JAUD1
BATT
+
BIOS
Winbond
83697HF
VIA
VT8235/8237
VIA
KM400/400A
DIMM1
IDE1
IDE2FDD1
PCI Slot 1
PCI Slot 2
PCI Slot 3
JUSB2
JUSB4
(reserved)
JUSB3
JIR1
JCI1
CPUFA1
SYSFA1
JPW1
ATX
PowerSupply
JFP1 JFP2
JBAT1
SW1
SW2
J1
Top : L PT
Bottom:
COM A
VGA port
T:
M:
B:
Line-In
Line-Out
Mic

1-5
Getting Started
MAC address Label 1394 GUID address Label
(optional)
MSI Reminds You...
1. Each board will be given a unique MAC address or/and 1394
GUID.
2. Both MAC address & 1394 GUID are unique from the
manufacturer’s default settings in the system BIOS.
3. Use the flash utility from MSI or Live Update from MSI’s website
for BIOS update. In case the MAC address or 1394 GUID is lost,
enter the MAC address or 1394 GUID in the utility from MSI’s
website to recover the original one.

2-1
Hardware Setup
This chapter tells you how to install the CPU, memory
modules, and expansion cards, as well as how to setup the jump-
ers on the mainboard. Also, it provides the instructions on con-
necting 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-6734 M-ATX Mainboard
Quick Components Guide
JBAT1, p.2-26
JSP1, p.2-23
DDR DIMMs,
p.2-7
CPU, p.2-3 CPUFA1, p.2-18
FDD1, p.2-16
SYSFA1, p.2-18 J1, p.2-25
IDE1
IDE2, p.2-17
JFP1 & JFP2,
p.2-19
JUSB1/2/3,
p.2-21
JAUD1, p.2-20 JIR1, p.2-24
JCI1, p.2-24
JCD1, p.2-23
JPW1, p.2-9
J1394_2, p.2-22 SW1/2, p.2-27
Back Panel
I/O, p.2-10
CONN1, p.2-9
J1394_1, p.2-22

2-3
Hardware Setup
Central Processing 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.
As processor technology pushes to faster speeds and higher performance, ther-
mal management becomes increasingly crucial when building computer
systems. Maintaining the proper thermal environment is key to reliable
operation. As such, the processor must be maintained in the specified thermal
requirements.
AMD Athlon™/Duron™/Athlon™ XP processor with a speed of 600MHz
and above requires a LARGER heatsink and fan. You also need to add ther-
mal grease between the CPU and heatsink to improve heat dissipation. Then,
make sure that the CPU and heatsink are securely fastened and in good con-
tact 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.
WARNING! Thermal Issue for CPU
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

2-4
MS-6734 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 90-
degree angle.
3. Look for the gold arrow. The
gold arrow should point to-
wards 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 462
Open Lever
Gold arrow
Gold arrow
90 degree
Correct CPU placement
Incorrect CPU placement
Gold arrow
Sliding
Plate
Close
Lever
Press down
the CPU
X
O

2-5
Hardware Setup
Installing AMD Athlon CPU (Socket 462) Cooler Set
Apply some heat
sink paste
MSI Reminds You...
Please apply some heat sink paste on top of your CPU to
dissipate the heat more effectively.
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.
4. Connect the fan to the power sup-
ply connector provided on your
mainboard.

2-6
MS-6734 M-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, al-
ways 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 sup-
ply 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 toler-
ate such abnormal setting, while doing overclocking. Any at-
tempt to operate beyond product specifications is not
recommended. We do not guarantee the damages or risks
caused by inadequate operation or beyond product
specifications.

2-7
Hardware Setup
Memory
Themainboardprovides 2 slots for184-pinDDR SDRAM DIMM (Double
In-Line Memory Module) modules and supports the memory size up to 2GB.
YoucaninstallPC2700/DDR333,PC2100/DDR266orPC1600/DDR200modules
on the DDR DIMM slots.
DDR DIMM Slots
(DIMM1 & 2)
Memory Speed/CPU FSB Support Matrix
DDR266 DDR333
FSB266 V V
FSB333 V V
For KM400
DDR266 DDR333 DDR400
FSB266 V V X
FSB333 V V X
FSB400 V V V
For KM400A

2-8
MS-6734 M-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:
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 in-
serted in the socket.
3. The plastic clip at each side of the DIMM slot will automatically close.
MSI Reminds You...
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 MemoryModule Total Memory
DIMM 1 DDR S/D 64MB~1GB
(Bank 0 & 1)
DIMM 2 DDRS/D 64MB~1GB
(Bank 2 & 3)
MaximumSystem MemorySuppported 64MB~2GB