KT4V
MS-6712 (v1.X) ATX Mainboard
Version 1.0
G52-M6712X1
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
V1.0
Revision History
First release for PCB 1.X
with VIA KT400 & VT8235
chipsets
Date
Aug. 2002
TechnicalSupport
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]
iii
Safety Instructions
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:
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,STORAGETEMPERATUREABOVE600C(1400F),IT
MAYDAMAGETHEEQUIPMENT.
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 .......................................... iii
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
MSI Special Features ........................................................................... 1-5
PC Alert™ 4 ................................................................................... 1-5
LiveBIOS™/LiveDriver™ ............................................................ 1-6
Live Monitor™ .............................................................................. 1-7
D-Bracket™ 2 (Optional) ............................................................... 1-8
Fuzzy Logic™ 4 ........................................................................... 1-10
CPU Thermal Protection .............................................................. 1-11
S-Bracket (Optional) .................................................................... 1-11
MSI DVD 5.1 Channel (Optional) ................................................ 1-12
Chapter2. HardwareSetup ....................................................................... 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
Introduction to DDR SDRAM ....................................................... 2-7
DIMM Module Combination......................................................... 2-8
v
Installing DDR Modules ............................................................... 2-8
Power Supply ....................................................................................... 2-9
ATX 20-Pin 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: FDD1........................................... 2-15
Hard Disk Connectors: IDE1 & IDE2 ........................................... 2-16
Fan Power Connectors: CFAN1/SFAN1 ...................................... 2-17
Front Panel Connectors: JFP1 & JFP2 ......................................... 2-18
Front Panel Audio Connector: JAUD1 ........................................ 2-19
Front USB Connector: JUSB1 ...................................................... 2-20
Bluetooth Connector: JBT1 (Optional) ........................................ 2-21
D-Bracket™ 2 Connector: JLED1................................................. 2-22
S-Bracket Connector: JSP3 .......................................................... 2-23
IrDA Infrared Module Header: JIR1 ............................................ 2-25
Chassis Intrusion Switch Connector: JCI1 .................................. 2-25
CD-In Connector: JCD1 ............................................................... 2-26
Jumpers .............................................................................................. 2-27
Clear CMOS Jumper: JBAT1 ........................................................ 2-27
Slots ................................................................................................... 2-28
AGP (Accelerated Graphics Port) Slot ......................................... 2-28
PCI (Peripheral Component Interconnect) Slots .......................... 2-28
CNR (Communication Network Riser) Slot .................................. 2-28
vi
PCI Interrupt Request Routing .................................................... 2-29
Chapter 3. BIOS Setup.............................................................................. 3-1
Entering Setup...................................................................................... 3-2
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
Power Management Features ............................................................. 3-17
PNP/PCI Configurations..................................................................... 3-21
Integrated Peripherals ........................................................................ 3-23
PC Health Status ................................................................................ 3-26
Frequency/Voltage Control ................................................................ 3-27
Set Supervisor/User Password ........................................................... 3-29
Load High Performance/BIOS Setup Defaults.................................... 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-14
Playing KaraOK ................................................................................ A-15
Troubleshooting ........................................................................................ T-1
Glossary ....................................................................................................G-1
vii
Chpter 1. Getting
Star
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 KT400 North Bridge & VT8235 South Bridge)
chipset for optimal system efficiency. Designed to fit the ad-
vanced AMD® Athlon™, Athlon™ XPor Duron™ processors,
the MS-6712 delivers a high performance and professional desk-
top platform solution.
MS-6712 ATX Mainboard
Mainboard Specifications
CPU
hSupports Socket A (Socket-462) for AMD® Athlon™/Athlon™ XP /Duron™
processors
h Supports up to 2200+ (1.8GHz) or higher speed
Chipset
hVIA® KT400 North Bridge
- Supports twin 200/266MHz front side bus
- Supports DDR200/266/333
- Supports AGP 4X and AGP 8X
hVIA® 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
MainMemory
h Supports six memory banks using three 184-pin DDR DIMMs
hSupports up to 3GB PC2700/2100/1600 DDR SDRAMs
h Supports 2.5v DDR SDRAM
Slots
hOne AGP (Accelerated Graphics Port) 1.5V 8x/4x slot
h Six 32-bit PCI bus slots (support 3.3v/5v PCI bus interface)
hOne CNR (Communication Network Riser) slot
On-BoardIDE
hAn IDE controller on the VT8235 chipset provides IDE HDD/CD-ROM with
PIO, Bus Master and Ultra DMA133/100/66/33 operation modes
h Can connect up to four IDE devices
On-Board Peripherals
h On-Board Peripherals include:
- 1 floppy port supports 2 FDDs with 360K, 720K, 1.2M, 1.44M and
2.88Mbytes
- 2 serial ports (COM A + COM B)
- 1 parallel port supports SPP/EPP/ECP mode
1-2
Getting Started
- Vertical audio ports
- 1 SPDIF output (1 x 3) with housing (Optional)
- 6 USB ports (Rear * 4/ Front * 2)
Bluetooth (Optional)
h 1 Bluetooth connector for wireless connection
Audio
h RealTek ALC650 6-channel audio
LAN
hVIA VT6103 LAN controller
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
hATX Form Factor: 30.5 cm (L) x 21 cm (W)
Mounting
h 6 mounting holes
Others
h Suspend to RAM/Disk (S3/S4)
hPC2001 compliant
h Support WOL/WOR
1-3
MS-6712 ATX Mainboard
Mainboard Layout
Top : mouse
Bottom: keyboard
CFAN1
SOCKET 462
USB
ports
Top : Parallel Port
Bottom:
COM A
COM B
VIA
KT400
T: LAN jack
B: USB ports
Line-Out
Line-In
Mic
VIA
AGP Slot
VT6103
JCD1
PCI Slot 1
PCI Slot 2
PCI Slot 3
Winbond
W83697HF
JCI1
VIA
VT8235
JIR1
JSP3
PCI Slot 4
PCI Slot 5
PCI Slot 6
SFAN1
Codec
IDE 1
JBAT1
IDE 2
JLED1
BATT
+
CNR
JBT1
JAUD1
JUSB1
JFP1
JFP2
MS-6712 v1.X ATX Mainboard
1-4
Getting Started
MSI Special Features
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 speed(s)
Ø monitor system voltage
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 user disables the warning.
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 clicking COOLER XP and the screen will show
a steering wheel (as shown right) with information about
the CPU and chipset. Right-click any point on the steer-
ing wheel and the system will switch to a different dis-
play board with the same CPU and chipset information.
MSIRemindsYou...
The new feature COOLER XP will work only if your mainboard
supports AMD Athlon XP CPU.
Items shown on PC Alert 4 vary depending on your system’s status.
1-5
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
whole Web site. To use the function, you need to install the
“MSI Live Update Series 2” application. After the installation,
the “MSI Live Update Series 2” icon (as shown on the right)
will appear on the screen.
Double click the “MSI Live Update Series 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.
Ø Live BIOS – Updates the BIOS online.
Ø Live Driver – Updates the drivers online.
Ø Live VGA BIOS – Updates the VGA BIOS online.
Ø Live VGA Driver – Updates the VGA driver online.
Ø 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 Series
Guide” under the “Manual” Tab.
1-6
Getting Started
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 Series 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
listed below:
to perform the functions
Ø Auto Search – Searches for the BIOS/drivers version you need immediately.
Ø View Last Result – Allows you to view the last search result if there is any.
Ø Preference – Configures the Search function, including the Search schedule.
Ø Exit – Exits the Live Monitor™ application.
1-7
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 sup-
ports 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.
Decompressing BIOS image to RAM for fast booting.
Initializing Keyboard Controller.
Testing VGA BIOS
- This will start writing VGA sign-on message to the screen.
1-8
Getting Started
Green
Red
D-Bracket™ 2
Description
Processor Initialization
- This will show information regarding the processor (like
brand name, system bus, etc…)
Testing RTC (Real Time Clock)
Initializing Video Interface
- This will start detecting CPU clock, checking type of video
onboard. Then, detect and initialize the video adapter.
BIOS Sign On
- This will start showing information about logo, processor
brand name, etc….
Testing Base and Extended Memory
- Testing base memory from 240K to 640K and extended
memory above 1MB using various patterns.
Assign Resources to all ISA.
Initializing Hard Drive Controller
- This will initialize IDE drive and controller.
Initializing Floppy Drive Controller
- This will initializing Floppy Drive and controller.
Boot Attempt
- This will set low stack and boot via INT 19h.
Operating System Booting
1-9
MS-6712 ATX Mainboard
Fuzzy Logic™4
The Fuzzy Logic™ 4 utility is a user friendly tool that allows users to
view and adjust the current system status. To overclock the CPU FSB (Front
Side Bus) frequency under the Windows operating system, click FSB and use
the right and left arrow keys to select the desired FSB, and then click Apply to
apply the new setup value. To enable the system running at the specified FSB
every time when you click Turbo, click Save to save the desired FSB first. If
you want to know the maximal CPU overclocking value, click Auto to start
testing. The CPU FSB will automatically increase the testing value until the PC
reboots. After rebooting, click Turbo to apply the test result. Click Default to
restore the default values.
Features:
Ø MSI Logo
links to the MSI Web site
Ø CPU Speed
allows users to adjust the CPU speed through CPU
Multiplier and FSB
Ø Voltage
Ø MSI Info
Ø CPU Info
allows user to adjust the voltage of CPU/Memory/AGP
provides information about the mainboard, BIOS and OS
provides detailed information about the CPU
Ø CPU Fan Speed shows the current running speed of CPU Fan
Ø CPU Temp. shows the current CPU temperature
MSIRemindsYou...
To adjust the options under CPU Speed and Voltage, use the right
and left arrow keys to select the desired value and then click Ap-
ply to run the setup value.
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 ana-
log audio output. With the S-Bracket, your system will be able to perform 6-
channel 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.
S-Bracket
CEN/SUB RL/RR
SPDIF jack (optical)
Analog Line-Out jacks
SPDIF jack (coaxial)
1-11
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 conve-
nient 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 6-
channel 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).
MSIRemindsYou...
MSI DVD supports Dolby Digital format only. To view DTS-
formatted video, you should convert it to Dolby Digital format
first.
1-12
Getting Started
4.ClickOK.
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.ClickMSIDVDFAQ.
1-13
Chapter 2. Hardware
Setu
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 the mouse, keyboard, etc.
While doing the installation, be careful in holding the com-
ponents and follow the installation procedures.
MS-6712 ATX Mainboard
Quick Components Guide
JWR1, p.2-9
CPU, p.2-3
CFAN1, p.2-17
DDR DIMMs, p.2-7
Back Panel
I/O, p.2-10
FDD1, p.2-15
JCD1, p.2-26
AGP Slot, p.2-28
PCI Slots, p.2-28
JCI1, p.2-25
JSP3, p.2-23
JIR1, p.2-25
SFAN1, p.2-17
JBAT1, p.2-27
IDE1
IDE2, p.2-16
JFP1 & JFP2,
p.2-18
JBT1, p.2-21
JUSB1, p.2-20
JAUD1, p.2-19
JLED1, p.2-22
CNR Slot, p.2-28
2-2
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.
CPU Core Speed Derivation Procedure
If
CPU Clock
Core/Bus ratio
=
=
=
=
=
100MHz
14
Host Clock x Core/Bus ratio
100MHz x 14
1.4 GHz
then CPU core speed
WARNING!
Thermal Issue for CPU
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.
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
Sliding
Plate
90 degree
2. Pull the lever sideways away
from the socket. Make sure
to raise the lever up to a 90-
degree angle.
Gold arrow
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.
Correct CPU placement
Gold arrow
O
Gold arrow
Incorrect CPU placement
X
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.
Press down
the CPU
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.
Apply some heat
sink paste
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.
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, 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.
2-6
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 PC2700/DDR333, PC2100/DDR266 or PC1600/
DDR200 modules on the DDR DIMM slots (DIMM 1~3).
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 mod-
ules rather than 168-pin DIMM modules used by SDR SDRAM. High memory
bandwidth makes DDR an ideal solution for high performance PC, worksta-
tions 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
(Bank 2 & 3)
DIMM 3
S/D
S/D
64MB~1GB
64MB~1GB
64MB~3GB
(Bank 4 & 5)
Maximum System Memory Suppported
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 in-
serted in the socket.
3. The plastic clip at each side of the DIMM slot will automatically close.
Notch
Volt
MSI Reminds You...
You can barely see the golden finger if the module is properly
inserted in the socket.
2-8
Hardware Setup
Power Supply
The mainboard supports ATX power supply for the power system. Be-
fore inserting the power supply connector, always make sure that all compo-
nents 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
1
20
10
JWR1
JWR1 Pin Definition
PIN
SIGNAL
PIN
SIGNAL
1
3.3V
3.3V
GND
5V
11
12
13
14
15
16
17
18
19
20
3.3V
-12V
GND
PS_ON
GND
GND
GND
-5V
2
3
4
5
GND
5V
6
7
GND
PW_OK
5V_SB
12V
8
9
5V
5V
10
2-9
MS-6712 ATX Mainboard
Back Panel
The back panel provides the following connectors:
LAN
(Optional)
Parallel
Mouse
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
PIN
SIGNAL
DESCRIPTION
6
5
1
2
3
4
5
6
Mouse DATA
NC
Mouse DATA
No connection
Ground
3
4
GND
VCC
+5V
1
2
Mouse Clock
NC
Mouse clock
No connection
PS/2 Mouse (6-pin Female)
2-10
Hardware Setup
Keyboard Connector
The mainboard provides a standard PS/2® keyboard mini DIN connec-
tor for attaching a PS/2® keyboard. You can plug a PS/2® keyboard directly
into this connector.
Pin Definition
6
5
PIN
SIGNAL
DESCRIPTION
1
2
3
4
5
6
Keyboard DATA
Keyboard DATA
No connection
Ground
3
4
NC
GND
1
2
VCC
+5V
Keyboard Clock
NC
Keyboard clock
No connection
PS/2 Keyboard (6-pin Female)
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 Port Description
PIN
SIGNAL
DESCRIPTION
1
2
3
4
5
6
7
8
VCC
+5V
1
5
2
6
3
7
4
8
-Data 0
+Data0
GND
Negative Data Channel 0
Positive Data Channel 0
Ground
VCC
+5V
-Data 1
+Data 1
GND
Negative Data Channel 1
Positive Data Channel 1
Ground
USB Ports
2-11
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
14
25
Pin Definition
PIN
SIGNAL
DESCRIPTION
1
STROBE
DATA0
DATA1
DATA2
DATA3
DATA4
DATA5
DATA6
DATA7
ACK#
Strobe
2
Data0
3
Data1
4
Data2
5
Data3
6
Data4
7
Data5
8
Data6
9
Data7
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Acknowledge
Busy
BUSY
PE
Paper End
Select
SELECT
AUTO FEED#
ERR#
INIT#
Automatic Feed
Error
Initialize Printer
Select In
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
SLIN#
GND
GND
GND
GND
GND
GND
GND
GND
2-12
Hardware Setup
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 connec-
tor for microphones.
MIC
1/8” Stereo Audio Connectors
Line In
Line Out
MSI Reminds You...
For advanced audio application, RealTek ALC650 audio chip
is provided as an option 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 au-
dio operation, please refer to Appendix. Using 4- or 6-Channel
Audio Function.
2-13
MS-6712 ATX Mainboard
Serial Port Connectors: COM A & COM B
The mainboard offers two 9-pin male DIN connectors as serial port COM
A & COM B. The ports are 16550A high speed communication ports that
send/receive 16 bytes FIFOs. You can attach a serial mouse or other serial
devices directly to the connectors.
Pin Definition
1
2
3
4
5
PIN
SIGNAL
DESCRIPTION
1
2
3
4
5
6
7
8
9
DCD
SIN
Data Carry Detect
Serial In or Receive Data
Serial Out or Transmit Data
Data Terminal Ready)
Ground
SOUT
DTR
GND
DSR
RTS
CTS
RI
6
7
8
9
Data Set Ready
9-Pin Male DIN Connector
Request To Send
Clear To Send
Ring Indicate
RJ-45 LAN Jack (Optional)
The mainboard provides a RJ-45 connector that allows your computer
to be connected to a network environment.
Pin
1
Signal
TDP
TDN
RDP
NC
Description
Transmit differential pair
Transmit differential pair
Receive differential pair
Not used
Activity
2
Indicators
3
4
5
NC
Not used
6
RDN
NC
Receive differential pair
Not used
7
LAN Jack
8
NC
Not used
(RJ-45)
2-14
Hardware Setup
Connectors
The mainboard provides connectors to connect to FDD, IDE HDD, case,
modem, LAN, USB Ports, IR module and CPU/System FAN.
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.
FDD1
2-15
MS-6712 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. You can connect up to four hard disk drives, CD-
ROM, 120MB Floppy (reserved for future BIOS) and other devices.
IDE 1
IDE 2
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 You...
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.
2-16
Hardware Setup
Fan Power Connectors: CFAN1/SFAN1
The CFAN1 (processor fan) and SFAN1 (system fan) support system
cooling fan with +12V. It supports three-pin head connector. When connect-
ing the wire to the connectors, always take note that the red wire is the posi-
tive 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.
SENSOR
+12V
GND
CFAN1
SENSOR
+12V
GND
SFAN1
MSI Reminds You...
1. Always consult the vendors for proper CPU cooling fan.
2. CPUFAN 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.
2-17
MS-6712 ATX Mainboard
Front Panel Connectors: JFP1 & JFP2
The mainboard provides two front panel connectors for electrical con-
nection to the front panel switches and LEDs. JFP1 is compliant with Intel®
Front Panel I/O Connectivity Design Guide.
Power Power
Speaker
LED
Switch
2
1
10
9
2
1
8
7
Power
LED
HDD
LED
Reset
Switch
JFP1
JFP2
JFP1 Pin Definition
DESCRIPTION
PIN
SIGNAL
1
2
3
4
5
6
7
8
9
HD_LED_P
FP PWR/SLP
HD_LED_N
FP PWR/SLP
RST_SW_N
PWR_SW_P
RST_SW_P
PWR_SW_N
RSVD_DNU
Hard disk LED pull-up
MSG LED pull-up
Hard disk active LED
MSG LED pull-up
Reset Switch low reference pull-down to GND
Power Switch high reference pull-up
Reset Switch high reference pull-up
Power Switch low reference pull-down to GND
Reserved. Do not use.
JFP2 Pin Definition
PIN
SIGNAL
PIN
SIGNAL
1
GND
2
SPK-
3
5
7
SLED
PLED
NC
4
6
8
BUZ+
BUZ-
SPK+
2-18
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.
9
1
10
2
JAUD1
Pin Definition
PIN
SIGNAL
DESCRIPTION
1
AUD_MIC
Front panel microphone input signal
Ground used by analog audio circuits
Microphone power
2
AUD_GND
AUD_MIC_BIAS
AUD_VCC
3
4
Filtered +5V used by analog audio circuits
Right channel audio signal to front panel
Right channel audio signal return from front panel
Reserved for future use to control headphone amplifier
No pin
5
AUD_FPOUT_R
AUD_RET_R
HP_ON
6
7
8
KEY
9
AUD_FPOUT_L
AUD_RET_L
Left channel audio signal to front panel
Left channel audio signal return from front panel
10
MSI Reminds You...
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.
9
5
6
10
2-19
MS-6712 ATX Mainboard
Front USB Connector: JUSB1
The mainboard provides one USB 2.0 pinheader. The JUSB1 is compli-
ant with Intel® I/O Connectivity Design Guide.
JUSB1 Pin Definition
Pin
1
Description
VCC
Pin
2
Description
VCC
2
1
10
9
JUSB1
(USB 1.1/Intel spec)
3
USB0-
USB0+
GND
4
USB1-
5
6
USB1+
GND
7
8
9
Key
10
USBOC
MSI Reminds You...
The USB 2.0 technology is downward compatible with USB 1.1
spec. To use the USB 2.0 ports, you have to install the USB 2.0
driver, which is supplied by Microsoft for Windows® 2000 and
XP. If you have any problems regarding the USB 2.0 driver,
please visit the Microsoft Web site for more information.
For details on the bluetooth settings, please refer to PC2PC
Bluetooth Manual.
2-20
Hardware Setup
Bluetooth Connector: JBT1 (Optional)
This connector is used to connect a bluetooth module for wireless
connection.
7
8
1
2
JBT1
Pin Definition
PIN
SIGNAL
PIN
SIGNAL
1
5VDUAL
2
3VDUAL
3
5
7
D+ (USB signal)
D- (USB signal)
GND
4
6
8
GND
GND
NC
MSI Reminds You...
Because the bluetooth connector shares the USB interface with
the onboard USB pinheader, the bottommost USB port will not
function when you attach a bluetooth module to this connector.
2-21
MS-6712 ATX Mainboard
D-Bracket™ 2 Connector: JLED1
The mainboard comes with a JLED1 connector for you to connect to D-
Bracket™ 2. D-Bracket™ 2 is a USB Bracket that supports both USB1.1 & 2.
0 spec. It integrates four LEDs and allows users to identify system problem
through 16 various combinations of LED signals. For definitions of 16 signal
combinations, please refer to D-Bracket™ 2 (Optional) in Chapter 1.
Pin Definition
Pin
Signal
1
DBG1 (high for green color)
DBR1 (high for red color)
DBG2 (high for green color)
DBR2 (high for red color)
DBG3 (high for green color)
DBR3 (high for red color)
DBG4 (high for green color)
DBR4 (high for red color)
Key
2
3
4
5
6
7
8
9
10
NC
Connected to JLED1
Connected to JUSB1
9
10
1
2
JLED1
D-Bracket™ 2
LEDs
2-22
Hardware Setup
S-Bracket Connector: JSP3
The connector allows you to connect a S-Bracket for Sony & Philips
Digital Interface (SPDIF). The S-Bracket offers 2 SPDIF jacks for digital
audio transmission (one for optical fiber connection and the other for coaxial),
and 2 analog Line-Out jacks for 4-channel audio output.
To attach the fiber-optic cable to optical SPDIF jack, you need to re-
move the plug from the jack first. The two SPDIF jacks support SPDIF out-
put only. For more information on the S-Bracket, refer to Appendix. Using 4-
or 6-Channel Audio Function.
1
2
11
12
JSP3
JSP3 Pin Definition
PIN
1
SIGNAL
VCC5
DESCRIPTION
PIN
2
SIGNAL
VDD3
DESCRIPTION
VDD 3.3V
VCC 5V
3
SPDFO
GND
S/PDIF output
Ground
4
(No Pin)
SPDFI
Key
5
6
S/PDIF input
7
LFE-OUT
CET-OUT
GND
Audio bass output
8
SOUT-R
SOUT-L
GND
Audio right surrounding output
Audio left surrounding output
Ground
9
Audio center output 10
Ground 12
11
2-23
MS-6712 ATX Mainboard
Optional S-Bracket
CEN/SUB RL/RR
Connect to JSP3
SPDIFJack (optical)
SPDIF Jack (coaxial)
Analog Line-Out Jacks
2-24
Hardware Setup
IrDA Infrared Module Header: JIR1
The connector allows you to connect to IrDA Infrared module. You
must configure the setting through the BIOS setup to use the IR function.
JIR1 is compliant with Intel® Front Panel I/O Connectivity Design Guide.
JIR1 Pin Definition
Pin
Signal
1
2
3
4
5
6
NC
6
2
5
1
NC
VCC5
GND
IRTX
IRRX
JIR1
Chassis Intrusion Switch Connector: JCI1
This connector is connected to a 2-pin chassis switch. If the chassis is
opened, the switch will be short. The system will record this status and show
a warning message on the screen. To clear the warning, you must enter the
BIOS utility and clear the record.
2
1
GND
CINTRU
JCI1
2-25
MS-6712 ATX Mainboard
CD-In Connector: JCD1
The connector is for CD-ROM audio connector.
R
GND
L
JCD1
2-26
Hardware Setup
Jumpers
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: JBAT1
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:
3
3
1
1
Keep Data
Clear Data
3
1
JBAT1
MSI Reminds You...
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.
2-27
MS-6712 ATX Mainboard
Slots
The motherboard provides one AGP slot, six 32-bit PCI bus slots, and
one CNR slot.
AGP Slot
PCI Slots
CNR Slot
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. The mainboard supports 4x/8x 1.5V AGP card.
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 (Communication Network Riser) Slot
The CNR slot allows you to insert the CNR expansion cards. CNR is a
specially designed network, audio, or modem riser card for ATX family
motherboards. Its main processing is done through software and controlled
by the motherboard’s chipset.
2-28
Hardware Setup
PCI Interrupt Request Routing
The IRQ, acronym of interrupt request line and pronounced I-R-Q, are
hardware lines over which devices can send interrupt signals to the
microprocessor.
For efficient IRQ allocation, PCI slot 1 and slot 6 are designed to share
the same IRQs. To install a PCI expansion card on a PCI shared slot, you
must make sure the card’s driver supports “IRQ shared” function or
there is no need to assign an IRQ to the device.
The PCI IRQ pins are typically connected to the PCI bus INT A# ~ INT
D# pins as follows:
Order 1
INT A#
INT B#
INT C#
INT D#
INT B#
INT C#
Order 2
INT B#
INT C#
INT D#
INT A#
INT C#
INT D#
Order 3
INT C#
INT D#
INT A#
INT B#
INT D#
INT A#
Order 4
INT D#
INT A#
INT B#
INT C#
INT A#
INT B#
PCI Slot 1
PCI Slot 2
PCI Slot 3
PCI Slot 4
PCI Slot 5
PCI Slot 6
2-29
Chapter 3. BIOS Setup
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:
” An error message appears on the screen during the system
booting up, and requests you to run SETUP.
” You want to change the default settings for customized
features.
KTd
MS-6712 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.
DEL:Setup F11:Boot Menu
F12:Network boot
TAB:Logo
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.
Selecting the First Boot Device
You are allowed to select the 1st boot device without entering the BIOS
setup utility by pressing <F11>. When the same message as listed above
appears on the screen, press <F11> to trigger the boot menu.
The POST messages might pass by too quickly for you to respond in
time. If so, restart the system and press <F11> after around 2 or 3 seconds to
activate the boot menu similar to the following.
Select First Boot Device
Floppy
IDE-0
: 1st Floppy
: IBM-DTLA-307038
CDROM
: ATAPI CD-ROM DRIVE 40X M
[Up/Dn] Select
[RETURN] Boot [ESC] cancel
The boot menu will list all the bootable devices. Select the one you want
to boot from by using arrow keys and then pressing <Enter>. The system will
boot from the selected device. The selection will not make changes to the
settings in the BIOS setup utility, so next time when you power on the system,
it will still use the original first boot device to boot up.
3-2
BIOS Setup
Control Keys
Move to the previous item
Move to the next item
<
<
>
>
Move to the item on the left-hand side
<
<
>
>
Move to the item on the right-hand side
Select the item
<Enter>
<Esc>
Jumps to the 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
General help, only for Status Page Setup Menu and Option
Page Setup Menu
<F1>
<F6>
Load the default CMOS value from Fail-Safe default table, only
for Option Page Setup Menu
<F7>
Load Optimized defaults
<F10>
Save all the CMOS changes and exit
Getting Help
After entering the Setup utility, the first screen you see is the Main Menu.
Main Menu
The main menu displays the setup categories the BIOS supplies. You can use
the arrow keys ( ↑↓ ) to select the item. The on-line description for the se-
lected setup category is displayed at the bottom of the screen.
Default Settings
The BIOS setup program contains two kinds of default settings: the BIOS
Setup and High Performance defaults. BIOS Setup defaults provide stable
performance settings for all devices and the system, while High Performance
defaults provide the best system performance but may affect the system
stability.
3-3
KTd
MS-6712 ATX Mainboard
The Main Menu
Once you enter AMIBIOS NEW SETUP UTILITY, the Main Menu will ap-
pear on the screen. The Main Menu displays twelve configurable functions
and two exit choices. Use arrow keys to move among the items and press
<Enter> to enter the sub-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 AMI® special enhanced features.
Advanced Chipset Features
Use this menu to change the values in the chipset registers and optimize your
system’s performance.
Power Management Features
Use this menu to specify your settings for power management.
PNP/PCI Configurations
This entry appears if your system supports PnP/PCI.
3-4
BIOS Setup
Integrated Peripherals
Use this menu to specify your settings for integrated peripherals.
PC Health Status
This entry shows your PC health status.
Frequency/Voltage Control
Use this menu to specify your settings for frequency/voltage control.
Set Supervisor Password
Use this menu to set Supervisor Password.
Set User Password
Use this menu to set User Password.
Load High Performance Defaults
Use this menu to load the BIOS values for the best system performance, but
the system stability may be affected.
Load BIOS Setup Defaults
Use this menu to load factory default settings into the BIOS for stable system
performance operations.
Save & Exit Setup
Save changes to CMOS and exit setup.
Exit Without Saving
Abandon all changes and exit setup.
3-5
KTd
MS-6712 ATX Mainboard
Standard CMOS Features
The items inside STANDARD CMOS FEATURES menu are divided into 9
categories. Each category includes none, one or more setup items. Use the
arrow keys to highlight the item you want to modify and use the <PgUp> or
<PgDn> keys to switch to the value you prefer.
System Time
This allows you to set the system time that you want (usually the current
time). The time format is <hour> <minute> <second>.
System Date
This allows you to set the system to the date that you want (usually the current
date). The format is <day><month> <date> <year>.
day
Day of the week, from Sun to Sat, determined by
BIOS. Read-only.
month
date
The month from Jan. through Dec.
The date from 1 to 31 can be keyed by numeric
function keys.
year
The year can be adjusted by users.
Primary/Secondary IDE Master/Slave
Press PgUp/<+> or PgDn/<-> to select the hard disk drive type. The specifi-
3-6
BIOS Setup
cation of hard disk drive will show up on the right hand according to your
selection.
Type
Cylinders
Select how to define the HDD parameters
Enter cylinder number
Heads
Enter head number
Write Precompensation
Sectors
Enter write precomp cylinder
Enter sector number
Maximum Capacity
LBA Mode
Read the maximal HDD capacity
Select Auto for a hard disk > 512 MB un-
der Windows and DOS, or Disabled un-
der Netware and UNIX
Block Mode
Select Auto to enhance the hard disk
performance
Fast Programmed I/O
Modes
32 Bit Transfer Mode
Select Auto to enhance hard disk perfor-
mance by optimizing the hard disk timing
Enable 32 bit to maximize the IDE hard
disk data transfer rate
Floppy Drive A:/B:
This item allows you to set the type of floppy drives installed. Available
options: Not Installed, 1.2 MB 5¼, 720 KB 3½, 1.44 MB 3½ and 2.88 MB 3½.
Boot Sector Virus Protection
The item is to set the Virus Warning feature for IDE Hard Disk boot sector
protection. When Enabled, BIOS will issue a virus warning message and
beep if a write to the boot sector or the partition table of the HDD is attempted.
Setting options: Disabled and Enabled.
MSI Reminds You...
This feature only protects the boot sector, not the whole hard
disk.
3-7
KTd
MS-6712 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. Available options: Enabled, Disabled.
Full Screen Logo Show
This item enables you to show the company logo on the bootup screen. Set-
tings are:
Enabled
Disabled
Shows a still image (logo) on the full screen at boot.
Shows the POST messages at boot.
Boot Sequency
Press <Enter> to enter the sub-menu screen.
1st/2nd/3rd Boot Device
The items allow you to set the sequence of boot devices where
AMIBIOS attempts to load the operating system. The settings are:
IDE-0
IDE-1
The system will boot from the first HDD.
The system will boot from the second HDD.
3-8
BIOS Setup
IDE-2
IDE-3
Floppy
The system will boot from the third HDD.
The system will boot from the fourth HDD.
The system will boot from floppy drive.
ARMD-FDD The system will boot from any ARMD device, such as
LS-120 or ZIP drive, that functions as a floppy drive.
ARMD-HDD The system will boot from ARMD device, such as MO
or ZIP drive, that functions as hard disk drive.
CD/DVD
The system will boot from the CD/DVD ROM.
Legacy SCSI The system will boot from the SCSI.
Legacy NET- The system will boot from the Network drive.
WORK
BBS-0
BBS-1
BBS-2
BBS-3
BBS-4
BBS-5
BBS-6
BBS-7
BBS-8
BBS-9
USB FDD
The system will boot from the first BBS (BIOS Boot
Specification) compliant device.
The system will boot from the second BBS (BIOS Boot
Specification) compliant device.
The system will boot from the third BBS (BIOS Boot
Specification) compliant device.
The system will boot from the 4th BBS (BIOS Boot
Specification) compliant device.
The system will boot from the 5th BBS (BIOS Boot
Specification) compliant device.
The system will boot from the 6th BBS (BIOS Boot
Specification) compliant device.
The system will boot from the 7th BBS (BIOS Boot
Specification) compliant device.
The system will boot from the 8th BBS (BIOS Boot
Specification) compliant device.
The system will boot from the 9th BBS (BIOS Boot
Specification) compliant device.
The system will boot from the 10th BBS (BIOS Boot
Specification) compliant device.
The system will boot from USB-interfaced floppy drive.
USB CDROMThe system will boot from the USB-interfaced CD-ROM.
USB HDD The system will boot from the USB-interfaced HDD.
USB RMD- The system will boot from any USB-interfaced ARMD
FDD
device, such as LS-120 or ZIP drive, that functions as a
floppy drive.
3-9
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MS-6712 ATX Mainboard
USB RMD- The system will boot from USB-interfaced ARMD
HDD
device, such as MO or ZIP drive, that functions as hard
disk drive.
Disabled
Disable this sequence.
MSI Reminds You...
1. Available settings for “1st/2nd/3rd Boot Device” vary de-
pending 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-interfaced devices,
please set USB Legacy Support to All Device.
Try Other Boot Devices
Setting the option to Yes allows the system to try to boot from other
devices if the system fails to boot from the 1st/2nd/3rd boot device.
S.M.A.R.T. for Hard Disks
This allows you to activate the S.M.A.R.T. (Self-Monitoring Analysis & Re-
porting 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 op-
portunity to move data from a hard disk that is going to fail to a safe place
before the hard disk becomes offline. Settings: Enabled, Disabled.
BootUp Num-Lock
This item is to set the Num Lock status when the system is powered on. Set-
ting to On will turn on the Num Lock key when the system is powered on.
Setting to Off will allow end users to use the arrow keys on the numeric keypad.
Setting options: On, Off.
Floppy Drive Swap
Setting to Enabled will swap floppy drives A: and B:.
Floppy Drive Seek
This setting causes the BIOS to search for floppy disk drives at boot time.
When enabled, the BIOS will activate the floppy disk drives during the boot
process: the drive activity light will come on and the head will move back and
forth once. First A: will be done and then B: if it exists. Setting options:
Disabled, Enabled.
3-10
BIOS Setup
Primary Display
This configures the primary subsystem in the computer. Available options:
Mono (monochrome), CGA40x25, CGA80x25, VGA/EGA, Absent.
Password Check
This specifies the type of AMIBIOS password protection that is implemented.
Setting options are described below.
Option
Description
Setup
The password prompt appears only when end users try to
run Setup.
Always
A password prompt appears every time when the com-
puter is powered on or when end users try to run Setup.
Boot To OS/2
This allows you to run the OS/2® operating system with DRAM larger than
64MB. When you choose No, you cannot run the OS/2® operating system
with DRAM larger than 64MB. But it is possible if you choose Yes.
Internal Cache
Cache memory is additional memory that is much faster than conventional
DRAM (system memory). When the CPU requests data, the system transfers
the requested data from the main DRAM into cache memory, for even faster
access by the CPU. The setting controls the internal cache (also known as L1
or level 1 cache). Setting to Enabled will speed up the system performance.
System BIOS Cacheable
Selecting Enabled allows caching of the system BIOS ROM at F0000h-
FFFFFh, resulting in better system performance. However, if any program
writes to this memory area, a system error may result. Setting options: Enabled,
Disabled.
C000, 32k Shadow
This item specifies how the contents of the adapter ROM named in the item
are handled. Settings are described below:
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MS-6712 ATX Mainboard
Option
Disabled
Enabled
Description
The specified ROM is not copied to RAM.
The contents of specified ROM are copied to RAM
for faster system performance.
Cached
The contents of specified ROM are not only copied
to RAM, the contents of the ROM area can be writ-
ten to and read from cache memory.
APIC Function
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 ver-
sion 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
BIOS Setup
Advanced Chipset Features
MSI Reminds You...
Change these settings only if you are familiar with the chipset.
DRAM Timing Control
Press <Enter> and the following sub-menu appears.
Current Host Clock
This item shows the current CPU frequency.
Configure SDRAM Timing by
Selects whether DRAM timing is controlled by the SPD (Serial Presence
Detect) EEPROM on the DRAM module. Setting to SPD enables
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MS-6712 ATX Mainboard
SDRAM Frequency, SDRAM CAS# Latency, Row Precharge Time, RAS
Pulse Width, RAS to CAS Delay and SDRAM Bank Interleave auto-
matically to be determined by BIOS based on the configurations on the
SPD. Selecting User allows users to configure these fields manually.
SDRAM Frequency
Use this item to configure the clock frequency of the installed SDRAM.
Settings options: 200MHz, 266MHz, 333MHz, 400MHz, Auto.
SDRAM CAS# Latency
This controls the timing delay (in clock cycles) before SDRAM starts
a read command after receiving it. Settings: 1.5, 2, 2.5, 3.0 (clocks).
2 (clocks) increases the system performance the most while 3 (clocks)
provides the most stable performance.
Row Precharge Time
This item 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, refresh may be in-
complete and DRAM may fail to retain data. This item applies only
when synchronous DRAM is installed in the system. Available
settings: 2T, 3T.
RAS Pulse Width
This setting allows you to select the number of clock cycles allotted
for the RAS pulse width, according to DRAM specifications. The
less the clock cycles, the faster the DRAM performance. Settings: 6T,
5T.
RAS to CAS Delay
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.
Setting options: 3T, 2T.
Bank Interleave
This field selects 2-bank or 4-bank interleave for the installed SDRAM.
Disable the function if 16MB SDRAM is installed. Settings: Disabled,
2-Way and 4-Way.
3-14
BIOS Setup
DDR DQS Input Delay
This setting allows you to set the delay time of DQS to improve the setup
time and hold time of the data, and improve the stability. Setting options:
Auto, 18, 08, 0E, 0F.
SDRAM Burst Length
This setting allows you to set the size of Burst-Length for DRAM. Burst-
ing feature is a technique that DRAM itself predicts the address of the
next memory location to be accessed after the first address is accessed.
To use the feature, you need to define the burst length, which is the ac-
tual length of burst plus the starting address and allows internal address
counter to properly generate the next memory location. The bigger the
size, the faster the DRAM performance. Settings: 4 QW, 8 QW.
SDRAM 1T Command
This setting controls the SDRAM command rate. Selecting Enabled al-
lows SDRAM signal controller to run at 1T (T=clock cycles) rate. Se-
lecting Disabled makes SDRAM signal controller run at 2T rate. 1T is
faster than 2T. Setting options: Disabled, Enabled.
Fast Command
This item controls the internal timing of CPU. Selecting Ultra allows
CPU to handle data/instructions at the fastest speed. Fast enables CPU
to handle at a faster speed, while Normal let CPU handle them at the
slowest rate.
Fast R-2-R Turnaround
Burst read operation can be interrupted by new read of any bank.
Random column access is allowed. READ to READ interval is mini-
mum 1 CLK. Selecting Enabled to shorten the turnaround interval to
improve the performance. Setting options: Disabled, Enabled.
AGP Timing Control
Press <Enter> and the following sub-menu appears.
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MS-6712 ATX Mainboard
AGP Mode
The item sets an appropriate mode for the installed AGP card. Setting
options: 1x, 2x, 4x, Auto. Select 4x only if your AGP card supports it.
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 im-
proves the AGP 4X speed. Select Enabled only when the installed
AGP card supports this function. Settings: Enabled, Disabled.
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
4MB, 8MB, 16MB, 32MB, 64MB, 128MB, and 256 MB.
AGP Master 1 W/S Write
The field allows users to insert one wait state into the AGP write cycle.
Settings: Enabled, Disabled.
AGP Master 1 W/S Read
The field allows users to insert one wait state into the AGP read cycle.
Settings: Enabled, Disabled.
AGP Read Synchronization
The field allows you to enable or disable the AGP Read Synchroniza-
tion feature. Settings: Enabled, Disabled.
PCI Delay Transaction
The chipset has an embedded 32-bit posted write buffer to support delayed
transactions cycles so that transactions to and from the ISA bus are buffered
and PCI bus can perform other transactions while the ISA transaction is
underway. Select Enabled to support compliance with PCI specification ver-
sion 2.1. Setting options: Enabled, Disabled.
3-16
BIOS Setup
Power Management Features
MSI Reminds You...
S3-related functions described in this section are available only
when your BIOS supports S3 sleep mode.
IPCA Function
This item is to activate the ACPI (Advanced Configuration and Power Man-
agement Interface) function. If your operating system is ACPI-aware, such as
Windows 98SE/2000/ME, select Yes. Available options: Yes, No.
ACPI Standby State
This item secifies the power saving modes for ACPI function. If your operat-
ing system supports ACPI, such as Windows 98SE, Windows ME and Win-
dows 2000, you can choose to enter the Standby mode in S1(POS) or S3
(STR) fashion through the setting of this field. 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 main-
tains all system context.
S3/STR
The S3 sleep mode is a lower power state where the in
formation 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.
Auto
BIOS determines the best ode automatically.
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MS-6712 ATX Mainboard
Call VGA BIOS at S3 Resuming
Selecting Enabled allows BIOS to call VGA BIOS to initialize the VGA card
when system wakes up (resumes) from S3 sleep state. The system resume
time is shortened when you disable the function, but system will need an AGP
driver to initialize the VGA card. Therefore, if the AGP driver of the card
does not support the initialization feature, the display may work abnormally
or not function after resuming from S3.
USB Wakeup From S3
This item allows the activity of the USB device to wake up the system from
S3 (Suspend to RAM) sleep state. Settings: Enabled, Disabled.
Power Management/APM
Setting to Enabled will activate an Advanced Power Management (APM)
device to enhance Max Saving mode and stop CPU internal clock. Settings:
Disabled, Enabled.
Power/Sleep LED
This item configures how the system uses power LED on the case to indicate
the sleep/suspend state. Available options are:
Single LED The power LED turns off to indicate the sleep/suspend
state.
Dual LED
The power LED changes its color to indicate the sleep/
suspend state.
Suspend Time Out (Minute)
After the selected period of system inactivity, all devices except the CPU shut
off. Settings: Disabled, 1, 2, 4, 8, 10, 20, 30, 40, 50, 60.
Display Activity
These items specify if the BIOS will monitor the activity of the specified
hardware peripheral or component. If set to Monitor, any activity detected on
the specified hardware peripheral or component will wake up the system or
prevent the system from entering the power saving modes. Settings: Monitor,
Ignore.
CPU Critical Temperature
If the CPU temperature reaches the upper limit preset in this setting, the warn-
ing mechanism will be activated. This helps you to prevent the CPU overheat-
ing problem.
3-18
BIOS Setup
Power Button Function
This feature sets the function of the power button. Settings are:
On/Off
Suspend
The power button functions as normal power off button.
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 Loss
This setting specifies whether your system will reboot after a power failure or
interrupt occurs. Available settings are:
Power Off
Power On
Last State
Leaves the computer in the power off state.
Leaves the computer in the power on state.
Restores the system to the previous status before power
failure or interrupt occurred.
Set WakeUp Events
Press <Enter> and the following sub-menu appears.
Wake Up On Ring
For this feature to take effect, you need to install a modem card support-
ing power on function first. When set to Enabled, activity or input signal
of the modem will awake the system from S3 (Suspend to RAM) sleep
state. Settings: Disabled, Enabled.
Wake Up On PME
When set to Enabled, the feature allows your system to be awakened
from the power saving modes through any event on PME (Power Man-
agement Event). Settings: Enabled, Disabled.
Resume On KBC
This item allows the activity of the keyboard to wake up the system from
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MS-6712 ATX Mainboard
S3 (Suspend to RAM) sleep state. Settings: Disabled, Any Key, Spe-
cific Key.
Wake-Up Key
This setting allows users to set a wake-up key to recall the system
from power saving state. Options: Any Key, Specific Key.
Wake-Up Password
This setting allows users to set a password (max. 5 letters) to wake
up the system.
Resume On PS/2 Mouse
This item allows the activity of the mouse to wake up the system from
S3 (Suspend to RAM) sleep state. Settings: Disabled, (double-click)
Left-button, (double-click) Right-button.
Resume By Alarm
This is used to enable or disable the feature of booting up the system on
a scheduled time/date from the soft off (S5) state. Settings: Enabled,
Disabled.
Alarm Date/Hour/Minute/Second
If Resume By Alarm is set to Enabled, the system will automatically
resume (boot up) on a specific date/hour/minute/second specified in
these fields. Available settings for each item are:
Alarm Date
01 ~ 31, Every Day
00 ~ 23
00 ~ 59
Alarm Hour
Alarm Minute
Alarm Second
00 ~ 59
MSI Reminds You...
If you have changed this setting, you must let the system boot up
until it enters the operating system, before this function will work.
3-20
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 al-
lows 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.
Plug and Play Aware O/S
When set to Yes, BIOS will only initialize the PnP cards used for booting
(VGA, IDE, SCSI). The rest of the cards will be initialized by the PnP operat-
ing system like Windows® 98, 2000 or ME. When set to No, BIOS will initial-
ize all the PnP cards. Select Yes if the operating system is Plug & Play.
Clear NVRAM
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
Yes, the system will reset ESCD NVRAM right after the system is booted up
and then set the setting of the item back to No automatically.
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MS-6712 ATX Mainboard
PCI Latency Timer
This item controls how long each PCI device can hold the bus before another
takes over. When set to higher values, every PCI device can conduct transac-
tions for a longer time and thus improve the effective PCI bandwidth. For
better PCI performance, you should set the item to higher values. Settings
range from 32 to 248 at a 32 increment.
PCI IDE BusMaster
Set this option to Enabled to specify that the IDE controller on the PCI local
bus has bus mastering capability. Settings options: Disabled, Enabled.
Primary Graphics Adaptor
This setting specifies which VGA card is your primary graphics adapter. Set-
ting options: PCI, AGP.
PCI Slot1 IRQ, PCI Slot2/5 IRQ, PCI Slot3/6 IRQ, PCI Slot4 IRQ
These items specify the IRQ line for each PCI slot. Setting options: 3, 4, 5, 7,
9, 10, 11, Auto. Selecting Auto allows BIOS to automatically determine the
IRQ line for each PCI slot.
3-22
BIOS Setup
Integrated Peripherals
Floppy Disk Controller
This is used to enable or disable the onboard Floppy controller.
Option
Description
Auto
BIOS will automatically determine whether to enable the
onboard Floppy controller or not.
Enabled
Enables the onboard Floppy controller.
Disables the onboard Floppy controller.
Disabled
Serial Port 1/2
These items specify the base I/O port addresses of the onboard Serial Port 1
(COM A)/Serial Port 2 (COM B). Selecting Auto allows AMIBIOS to auto-
matically determine the correct base I/O port address. Settings: Auto, 3F8/
COM1, 2F8/COM2, 3E8/COM3, 2E8/COM4 and Disabled.
Serial Port2 Mode
This item sets the operation mode for Serial Port 2. Settings: Normal,
1.6 uS, 3/16 Baud and ASKIR (the last three operation modes are setting
options for IR function).
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MS-6712 ATX Mainboard
IR Pin Select
Set to IRRX/IRTX when using an internal IR module connected to the IR
header. Set to SINB/SOUTB. when connecting an IR adapter to COM B.
Parallel Port
This field specifies the base I/O port address of the onboard parallel port.
Selecting Auto allows AMIBIOS to automatically determine the correct base
I/O port address. Settings: Auto, 378, 278, Disabled.
Port Mode
This item selects the operation mode for the onboard parallel port: ECP,
Normal, Bi-Dir or EPP.
EPP Version
The item selects the EPP version used by the parallel port if the port is set
to EPP mode. Settings: 1.7, 1.9.
Port IRQ
When OnBoard Parallel Port is set to Auto, the item shows Auto indicat-
ing that BIOS determines the IRQ for the parallel port automatically.
Port DMA
This feature needs to be configured only when Parallel Port Mode is set
to the ECP mode. When Parallel Port is set to Auto, the field will show
Auto indicating that BIOS automatically determines the DMA channel
for the parallel port.
OnChip IDE Controller
This setting controls the onboard IDE controller. Setting options: Disabled,
Primary, Secondary, Both.
OnBoard LAN
This setting controls the onboard LAN controller. Setting options: Disabled,
Enabled.
OnBoard LAN P.M.E.
This feature allows the onboard LAN to be awakened from the power
saving modes through any event on PME (Power Management Event).
Setting options: Disabled, Enabled.
3-24
BIOS Setup
AC’97 Audio
Auto allows the mainboard to detect whether an audio device is used. If an
audio device is detected, the onboard AC’97 (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.
MC’97 Modem
Auto allows the mainboard to detect whether a modem is used. If a modem is
detected, the onboard AC’97 modem controller will be enabled; if not, it is
disabled. Disable the controller if you want to use other controller cards to
connect a modem. Settings: Auto, Disabled.
OnChip USB Controller
This setting is used to enable/disable the onboard USB ports. Setting options:
Disabled, 2 USB Ports, 4 USB Ports, 6 USB Ports.
USB Legacy Support
Set to All Device if you need to use any USB device in the operating
system that does not support or have any USB driver installed, such as
DOS and SCO Unix. Set to No Mice only if you want to use any USB
device other than the USB mouse.
Port 64/60 Emulation
This field controls the USB Port 64/60 Emulation function. When the
function is enabled, the USB keyboard is allowed to type some special
combination keys. Setting options: Disabled, Enabled.
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MS-6712 ATX Mainboard
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.
Chassis Intrusion
The field enables or disables the feature of recording the chassis intrusion
status and issuing a warning message if the chassis is once opened. To clear
the warning message, set the field to Reset. The setting of the field will auto-
matically return to Enabled later. Settings: Enabled, Reset, Disabled.
CPU Fan Detection
When enabled, the system will automatically monitor the CPU fan during
boot-up. If it detects that the CPU fan is not rotating, the system will show an
error message on the screen and halt the boot-up process. The function is
built with CPU fan power connector (CFAN1) only and enables you to
protect the CPU form possible overheating problem. If you don’t connect the
CPU fan to the CPU fan power connector, we recommend that you disable the
feature. Settings: Enabled, Disabled.
CPU/System Temperature, CPU/System Fan Speed, Vcore, +5.0V,
+12.0V, -12.0V, -5.0V, Battery, +5V SB
These items display the current status of all of the monitored hardware de-
vices/components such as CPU voltages, temperatures and all fans’ speeds.
3-26
BIOS Setup
Frequency/Voltage Control
Use this menu to specify your settings for frequency/voltage control.
Spread Spectrum
When the motherboard’s clock generator pulses, the extreme values (spikes)
of the pulses creates EMI (Electromagnetic Interference). The Spread Spec-
trum 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, select one of the options for
EMI reduction. Remember to disable Spread Spectrum if you are overclocking
because even a slight jitter can introduce a temporary boost in clockspeed
which may just cause your overclocked processor to lock up. Available options:
+/-0.25%, +/-0.5%, +/-0.75%, Disabled.
CPU FSB Clock
This item allows you to select the CPU Front Side Bus clock frequency (in
MHz) and overclock the processor by adjusting the FSB clock to a higher
frequency. Select the number between 100~280 for needed frequency.
CPU Ratio/Vcore (V)
The settings are used to adjust the CPU clock multiplier (ratio) and CPU
corevoltage (Vcore). These settings offer users a tool to overclock the system.
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MS-6712 ATX Mainboard
MSI Reminds You...
Changing CPU Ratio/Vcore could result in the instability of the
system; therefore, it is NOT recommended to change the default
setting for long-term usage.
DDR Voltage (V)
Adjusting the DDR voltage can increase the DDR speed. Any changes made
to this setting may cause a stability issue, so changing the DDR voltage for
long-term purpose is NOT recommended.
Termination Vol (V)
The settings are used to adjust the termination voltage. Setting options:
Auto, 1.27, 1.29.
AGP Voltage (V)
AGP voltage is adjustable in the field, allowing you to increase the perfor-
mance of your AGP display card when overclocking, but the stability may be
affected. Setting options: Auto, 1.6, 1.7, 1.8.
3-28
BIOS Setup
Set Supervisor/User Password
When you select this function, a message as below will appear on the screen:
Type the password, up to six 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 pass-
word 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 AMIBIOS to
request a password each time the system is booted. This would prevent unau-
thorized use of your computer. The setting to determine when the password
prompt is required is the PASSWORD CHECK option of the ADVANCED
BIOS FEATURES menu. If the PASSWORD CHECK option is set to Always,
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.
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.
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MS-6712 ATX Mainboard
Load High Performance/BIOS Setup Defaults
The two options on the main menu allow users to restore all of the BIOS
settings to High Performance defaults or BIOS Setup defaults. The High Per-
formance Defaults are the values set by the mainboard manufacturer for the
best system performance but probably will cause a stability issue. The BIOS
Setup Defaults are the default values also set by the mainboard manufacturer
for stable performance of the mainboard.
When you select Load High Performance Defaults, a message as below appears:
Pressing ‘Enter’ loads the default BIOS values that enable the best system
performance but may lead to a stability issue.
MSI Reminds You...
The option is for power or overclocking users only. Use of high
performance defaults will tighten most timings to increase the
system performance. Therefore, a high-end system configura-
tion is a must, which means you need high-quality VGA adapter,
RAM and so on. We don’t recommend that users should apply
the high performance defaults in their regular systems.
Otherwise, the system may become unstable or even crash. If the
system crashes or hangs after enabling the feature, please CLEAR
CMOS DATA to resolve the problem. For more information, re-
fer to “Clear CMOS Jumper:JBAT1” in Chapter 2.
When you select Load BIOS Setup Defaults, a message as below appears:
Pressing ‘Enter’ loads the default values that are factory settings for stable
system performance.
3-30
Using 4- or 6-Channel Audio Function
Appendix: Using 4- or 6-Channel Audio
Function
The motherboard is equipped with Realtek ALC650 chip, which
provides support for 6-channel audio output, including 2 Front, 2 Rear, 1
Center and 1 Subwoofer channel. ALC650 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.
TOPICS
Installing the Audio Driver
Using 4-/6-Channel Audio Function
Testing the Connected Speakers
Playing KaraOK
A-2
A-4
A-14
A-15
A-1
MS-6712 ATX Mainboard
Installing the Audio Driver
You need to install the driver for Realtek ALC650 chip to function prop-
erly 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.
2. Click Avance ALC650 Sound Drivers.
Click here
3. Click Next to start installing files into the system.
A-2
Using 4- or 6-Channel Audio Function
Click here
4. Click Finish to restart the system.
Select this
option
Click here
A-3
MS-6712 ATX Mainboard
Using 4- or 6-Channel Audio Function
After installing the audio driver, you are able to use the 4-/6-channel
audio feature now. To 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.
There are two ways to utilize the function and connect the speakers to
your computer:
ꢀ
Use the optional S-Bracket
If your motherboard supports S-Bracket and you have installed
S-Bracket in the computer, you can connect two speakers to back
panel’s Line-Out connector, and the rest of speakers to S-
Bracket.
ꢀ
Use the Back Panel only
If you do not have a S-Bracket, you can connect all speakers to
the audio connectors on the back panel.
Use the Optional S-Bracket
S-Bracket integrates the SPDIF (Sony & Philips Digital Interface) and
analog LINE OUT connectors together. With this optional accessory, users
will be able to decide either analog or digital audio output when applying
the speakers to the connectors.
Read the following instructions to have the Multi-Channel Audio
Function mode properly set in the software utility, and then have your
speakers correctly connected to the S-Bracket:
Configuration in the Software Utility
1. Click the audio icon
corner of the screen.
from the window tray at the lower-right
2. Select a desired surround sound effect from the “Environment”
drop-down menu.
3. Click the Speaker Configuration tab
4. Select a desired multi-channel operation from No. of Speakers.
a. 2-Channel mode for Stereo-Speaker Output
b. 4-Channel mode for 4-Speaker Output
A-4
Using 4- or 6-Channel Audio Function
c. 6-Channel mode for 5.1-Speaker Output
d. Digital Audio Output
5. Select or deselect “Default Phonejack” to decide which audio
device that you wish to use as the audio output connectors.
If “Default Phonejack” is selected, the speakers should be con-
nected to the phonejacks on the S-Bracket.
If “Default Phonejack” is deselected, the speakers should be
connected to the phonejacks either on the S-Bracket or Back
Panel.
6. Click OK to close this window.
3
2
4
5
6
A-5
MS-6712 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 phonejacks
in accordance with the setting in software utility.
ꢀ 2-Channel Mode for Stereo-Speaker Output
When this mode is selected, it is recommended to attach the
speakers to the Line Out connector on the back panel instead of the
Line Out connector on the S-Bracket.
Refer to the following diagram and caption for the function of each
phonejack on the back panel when 2-Channel mode is selected.
Select “Default Phonejack”
Deselect “Default Phonejack”
1
2
3
Line Out (Front channels)
1
2
3
Line Out (Front channels)
Line In
MIC
Line In
MIC
Back Panel
3
1
2
A-6
Using 4- or 6-Channel Audio Function
ꢀ 4-Channel Mode for 4-Speaker Output
When this mode is selected, plug the two front speakers to the Line
Out connector on the back panel, and the other two rear speakers to
the Line Out connector on the S-Bracket.
Refer to the following diagram and caption for the function of each
phonejack on the back panel and S-Bracket when 4-Channel mode
is selected.
Select “Default Phonejack”
Deselect “Default Phonejack”
1
2
3
4
5
6
Line Out (Front channels)
Line In
1
2
3
4
5
6
Line Out (Front channels)
Rear Speaker Out (Rear channels)
MIC
MIC
Optical SPDIF jack
Coaxial SPDIF jack
Line Out (Reserved for Center
and Subwoofer channel, but it
is not functioning here)
Line Out (Rear channels)
Optical SPDIF jack
Coaxial SPDIF jack
Line Out (Reserved for Center and
Subwoofer channel, but it is not
functioning here)
7
7
Line Out (Rear channels)
Back Panel
3
1
2
4
5
6
7
A-7
MS-6712 ATX Mainboard
ꢀ 6-Channel Mode for 6-Speaker Output
When this mode is selected, plug the two front speakers to the Line
Out connector on the back panel, and the other two rear speakers to
the Line Out connector on the S-Bracket.
Refer to the following diagram and caption for the function of each
phonejack on the back panel and S-Bracket when 6-Channel mode
is selected.
Select “Default Phonejack”
Deselect “Default Phonejack”
1
2
3
4
5
6
Line Out (Front channels)
Line In
1
2
3
Line Out (Front channels)
Rear Speaker Out (Rear channels)
Center/Subwoofer Speaker Out
(Center and Subwoofer channels)
Optical SPDIF jack
MIC
Optical SPDIF jack
Coaxial SPDIF jack
Line Out (Center and
Subwoofer channels)
Line Out (Rear channels)
4
5
6
Coaxial SPDIF jack
Line Out (Center and Subwoofer
channels)
7
7
Line Out (Rear channels)
Back Panel
S-Bracket
3
1
2
4
5
6
7
MSI Reminds You...
If the Center and Subwoofer speaker exchange their audio chan-
nels 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.
A-8
Using 4- or 6-Channel Audio Function
ꢀ Digital Audio Output
When any Multi-Channel Audio Function mode is selected, you
may also connect your speakers to the Optical or Coaxial SPDIF
phonejack on the S-Bracket to exprience digital surround sound
effect.
Remove the plug from the optical SPIDF phonejack before insert-
ing the fiber-optic cable, and read the following diagram and
captions for the function of each phonejack on the S-Bracket.
1
2
Optical SPDIF jack
Coaxial SPDIF jack
S-Bracket
1
Plug
2
A-9
MS-6712 ATX Mainboard
Use the Back Panel only
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
corner of the screen.
from the window tray at the lower-right
2. Select a desired surround sound effect from the “Environment”
drop-down menu.
3. Click the Speaker Configuration tab.
4. Select Synchronize the phonejack switch with the settings.
5. Select a desired multi-channel operation from No. of Speakers.
a. 2-Channel Mode for Stereo-Speaker Output
b. 4-Channel Mode for 4-Speaker Output
c. 6-Channels Mode for 5.1-Speaker Output
6. Click OK to close this window.
3
2
A-10
Using 4- or 6-Channel Audio Function
5
4
6
Connecting the Speakers
When you have set the Multi-Channel Audio Function mode properly
in the software utility, connect your speakers to the correct phonejacks
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
phonejack on the back panel when 2-Channel mode is selected.
1
2
3
Line Out (Front channels)
Line In
MIC
3
1
2
A-11
MS-6712 ATX Mainboard
ꢀ 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- channels analog audio jacks by selecting the
corresponding multi-channel operation from No. of Speakers.
Refer to the following diagram and caption for the founction of
each jack on the back panel when 4-Channels mode is selected.
1
Line Out (Front channels)
2 * Line Out (Rear channels)
MIC
3
3
1
2
* Line In function is converted to Line Out function when 4-Channel Mode for
4-Speaker Output is selected.
A-12
Using 4- or 6-Channel Audio Function
ꢀ 6-Channel Mode for 6-Speaker Output
Refer to the following diagram and caption for the founction of
each jack on the back panel when 6-Channels mode is selected.
1
Line Out (Front channels)
2
2 * Line Out (Rear channels)
3 * Line Out (Center and
Subwoofer channel)
3
1
* Both Line In and MIC function are converted to Line Out function when 4-
Channel Mode for 6-Speaker Output is selected.
A-13
MS-6712 ATX Mainboard
Testing the Connected Speakers
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 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
of the screen.
from the window tray at the lower-right corner
2. Click the Speaker Test tab.
3. The following window appears. Select the speaker which you want to
test by clicking it.
Subwoofer
Front Left
Front Right
Rear Right
Rear Left
Center
MSI Reminds You...
6 speakers appear on the “Speaker Test” window only when
you select “6 channels mode” in the “No. of Speakers” column.
If you select “4 channels mode”, only 4 speakers appear on the
window.
A-14
Using 4- or 6-Channel Audio Function
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-15
MS-6712 ATX Mainboard
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
cornerof the screen.
2. In the Sound Effect tab, select Voice Cancellation under “KaraOK.”
3. Click OK to close this window.
2
3
A-16
Troubleshooting
Troubleshooting
Troubleshooting
Q: Where will I find the model number of the mainboard?
A: There are two places where you can find the model number of the mainboard:
1. Somewhere between the PCI slots you shall find MS-xxxx or the marketing
name like “K7T Turbo”. You can also find the version number beside it. 2. At
the back cover of the user's manual.
Q: What do you mean by PCB version 1?
A: PCB is printed circuit board. Saying PCB version 1 is the same as saying
motherboard version 1.
Q: Why does my AMD 133FSB cannot be autodetected by the mainboard?
A: Due to AMD CPU design, CPU FSB 133 will not be autodetected by the
motherboard. So user need to set the FSB manually to 133.
Q: Why my motherboard BIOS sticker is "Phoenix BIOS" but when I boot
up my system I saw that "Award BIOS" is being used?
A: Phoenix & Award already merged as one company. All MSI motherboard
using Award BIOS comes with Phoenix logo sticker.
Q: How do I know what MSI D-LED or D-bracket light mean?
A: Please follow the special tech issue, http://www.msi.com.tw/support/
techexpress/special_tech/smartled.htm
Q: I have got MSI Motherboard and when it says detecting drives, it detects
them but says an error saying "Primary IDE Channel no 80 Conductor
CableInstalled"
A: This is not a problem. It merely means that you're using an ATA-66 or ATA-
100 HDD, but you're using the conductor 40 ATA-33 cable.
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MS-6712 ATX Mainboard
Q: I have high speed CPU cooling fan like Taisol CGK760092, Vantec CCK-
6035D & GlobalWin WBK38. Can I install the fan directly to the
motherboard?
A: We strongly recommend that you do NOT connect those described CPU
fan directly to your motherboard, as it draws so much power, that it could
damage it. Please use a 3-Pin to 4-Pin Cable that comes together with the fan.
Q: Can I use more than 512MB memory on Win9x or WinME?
A: No, you can’t. You can only use more than 512MB memory on Win2000 or
WinXP. This is a Microsoft OS issue. Please check http://support/microsoft.
com/support/kb/articles/Q108/0/79.ASP
Q: I have tried to download the MSI Live Update utility from http://www.msi.
com.tw/support/liveupdate/livedriver.htmbutitkeepsonfailing?
A: This can be solved by one of the following suggestions: 1. Dont install
zonealarm 2. Disable "WebTrap" of PC-cillion 2000 3. Disable any web based
anti-virus Software.
Q: Can Live Update Series support WinXP?
A: Live Update Series version 215 can support WinXP. Download it from http:/
/www.msi.com.tw/support/liveupdate/livedriver.htm
Q: After flashing the BIOS, my system for unknown reason dont want to boot,
whatshouldIdo?
A: Please refer to the following suggestions: 1. Try the BIOS boot recovery
feature as described in http://www.msi.com.tw/support/bios/boot.htm 2. Try
to clear the CMOS If problem still persists, ask your reseller for new BIOS
chip or contact one of MSI office near your place for new BIOS chip http://
www.msi.com.tw/contact/main.htm
T-2
Troubleshooting
Q: Should I update my BIOS, once a new BIOS is released?
A: A new BIOS is usually released due to the following reasons:
1. New function is supported
2. New BIOS source code
3. Bugs are found
4. Customer-specific request
When we release a new BIOS, there's usually a release note attached which
lists the reason for the release. Refer to this release note and decide for
yourself if upgrading to the new BIOS will be worth it. A word of advice,
though, do not upgrade to the new BIOS, unless you really have to.
Q: How do I update the BIOS?
A: Please refer to http://www.msi.com.tw/support/bios/note.htm for details.
Q: How do I identify the BIOS version?
A: Upon boot-up, the 1st line appearing after the memory count is the BIOS
version. It is usually in the format:
1. For older model number:
AG76091096where:
1st digit refers to BIOS maker as A = AMI(R) W = AWARD(R) P = PHOENIX
(R).
2nd digit refers to the internal chipset code.
3rd digit refers to the processor class as 5 = 486, 7 = 586, 8 = 686.
4th digit is incremental.
091096 refers to the date this BIOS is released.
2. For newer model number:
W5139MSV1.0091096where:
1st digit refers to BIOS maker as A = AMI(R) W = AWARD(R) P = PHOENIX
(R).
2nd - 5th digit refers to the model number.
T-3
MS-6712 ATX Mainboard
6th - 7th digit refers to the customer as MS = all standard customers.
V1.0 refers to the BIOS version.
091096 refers to the date this BIOS is released.
Q: After flashing the bios and rebooting the system, the screen went blank.
A: For AMI BIOS
Rename the desired AMI BIOS file to AMIBOOT.ROM and save it on a
floppy disk. e.g. Rename A569MS23.ROM to AMIBOOT.ROM
Insert this floppy disk in the floppy drive. Turn On the system and press
and hold Ctrl-Home to force update. It will read the AMIBOOT.ROM file
and recover the BIOS from the A drive.
When 4 beeps are heard you may remove the floppy disk and restart the
computer.
For Award BIOS
Make a bootable floopy disk
Copy the Award flash utility & BIOS file to the said floppy disk
Create an autoexec.bat with "awdfl535 biosfilename" in the content e.g.
awdfl535a619mj21.bin
Boot up system with the said floppy (it will take less than 2 minutes before
screen comes out)
Re-flash the BIOS & reboot.
T-4
Glossary
Glossary
Glossary
ACPI (Advanced Configuration & Power Interface)
This power management specification enables the OS (operating system) to control the
amount of power given to each device attached to the computer. Windows 98/98SE,
Windows 2000 and Windows ME can fully support ACPI to allow users managing the
system power flexibly.
AGP (Accelerated Graphics Port)
A new, high-speed graphics interface that based on PCI construction and designed
especially for the throughput demands of 3-D graphics. AGP provides a direct channel
(32-bit wide bus) between the display controller and main memory for high graphics
quality and performance.
Bluetooth
Bluetooth refers to a worldwide standard for the wireless exchange of data between two
devices. Bluetooth requires that a low-cost transceiver chip be included in each device.
The tranceiver transmits and receives in a previously unused frequency band of 2.45
GHz that is available globally (with some variation of bandwidth in different countries).
In addition to data, up to three voice channels are available. Each device has a unique 48-
bit address from the IEEE 802 standard. Connections can be point-to-point or
multipoint. The maximum range is 10 meters. Data can be exchanged at a rate of 1
megabit per second (up to 2 Mbps in the second generation of the technology).
BIOS (Basic Input/Output System)
On PCs, an essential software that contains all the control code of input/output inter-
face (such as keyboard, disk drives, etc.). It executes hardware test on booting the
system, starts the OS, and provides an interface between the OS and the components.
The BIOS is stored in a ROM chip.
Bus
A set of hardware lines within the computer system, through which the data is trans-
ferred among different components. In a PC, the term bus usually refers to a local bus
that connects the internal components to the CPU and main memory.
Cache
A special memory subsystem that is used to speed up the data transfer. It stores the
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MS-6712 ATX Mainboard
contents of frequently accessed RAM locations and the addresses where these data
items are stored.
Chipset
A collection of integrated chips designed to perform one or more related functions. For
example, a modem chipset contains all the primary circuits for transmitting and receiv-
ing data; a PC chipset provides the electronic interfaces between all subsystems.
Clock Cycle
Clock cycle (or tick) is the smallest unit of time recognized by a device. For personal
computers, clock cycles generally refer to the main system clock, which runs at 66
MHz. This means that there are 66 million clock cycles per second. Since modern
CPUs run much faster (up to 533 MHz), the CPU can execute several instructions in a
single clock tick.
CMOS (Complementary Metal-Oxide Semiconductor)
CMOS is a widely used type of semiconductor, which features high speed and low
power consumption. PCs usually contain a small amount of battery-powered CMOS
memory to retain the date, time, and system setup parameters.
DRAM (Dynamic RAM)
A most common type of computer memory. It usually uses one transistor and a
capacitor to represent a bit. As the development of technology, the memory type and
specification used in computer becomes variety, such as SDRAM, DDR SDRAM, and
RDRAM. For further instruction, please see the table below:
Dynamic RAM (DRAM) Memory Technologies
Peak
Bandwidth
Type
First Used Clock Rate Bus* Width
Volts
FPM (60,70ns)
1990
1994
1996
1998
1999
25MHz
40MHz
64 bits
64 bits
64 bits
64 bits
64 bits
16 bits
64 bits
64 bits
200 MBps
320 MBps
528 MBps
800 MBps
1.1 GBps
1.6 GBps
1.6 GBps
2.1 GBps
5v
EDO (50,60,70ns)
SDRAM (66MHz)
SDRAM (100MHz)
SDRAM (133MHz)
5v
66MHz
3.3v
3.3v
3.3v
2.5v
3.3v
3.3v
100MHz
133MHz
400MHz
100MHz
133MHz
RDRAM (Direct Rambus) 1999
DDR SDRAM (100MHz)
DDR SDRAM (133MHz)
2000
2000
* Memory channel width (64 bits started with 75MHz Pentium)
Source: Computer Desktop Encyclopedia
G-2
Glossary
ECC Memory (Error Correcting Code Memory)
A type of memory that contains special circuitry for testing the accuracy of data and
correcting the errors on the fly.
EEPROM
Acronym for Electrically Erasable Programmable Read-Only Memory. An EEPROM
is a special type of PROM that can be erased by exposing it to an electrical charge. Like
other types of PROM, EEPROM retains its contents even when the power is turned
off. Also like other types of ROM, EEPROM is not as fast as RAM. EEPROM is
similar to flash memory (sometimes called flash EEPROM). The principal difference is
that EEPROM requires data to be written or erased one byte at a time whereas flash
memory allows data to be written or erased in blocks. This makes flash memory faster.
EIDE
Short for Enhanced IDE, a newer version of the IDE mass storage device interface
standard developed by Western Digital Corporation. It supports data rates of between
4 and 16.6 MBps, about three to four times faster than the old IDE standard. In
addition, it can support mass storage devices of up to 8.4 gigabytes, whereas the old
standard was limited to 528 MB. Because of its lower cost, enhanced EIDE has
replaced SCSI in many areas. There are four EIDE modes defined. The most common
is Mode 4, which supports transfer rates of 16.6 MBps. There is also a new mode,
called ATA-3 or Ultra ATA, that supports transfer rates of 33 MBps.
EISA (Extended Industry Standard Architecture)
EISA is a standard bus (computer interconnection) architecture that extends the ISA
standard to a 32-bit interface. It was developed in part as an open alternative to the
proprietary Micro Channel Architecture (MCA) that IBM introduced in its PS/2
computers. EISA data transfer can reach a peak of 33 megabytes per second.
ESCD (Extended System Configuration Data)
It is a format for storing information about Plug-and-Play (PnP) devices in the BIOS.
Windows and the BIOS access the ESCD area each time you re-boot your computer
External Cache
Short for Level 2 cache, cache memory that is external to the microprocessor. In
general, L2 cache memory, also called the secondary cache, resides on a separate chip
from the microprocessor chip. Although, more and more microprocessors are including
L2 caches into their architectures.
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MS-6712 ATX Mainboard
IDE (Integrated Drive Electronics)
A type of disk-drive interface widely used to connect hard disks, CD-ROMs and tape
drives to a PC, in which the controller electronics is integrated into the drive itself,
eliminating the need for a separate adapter card. The IDE interface is known as the
ATA (AT Attachment) specification.
IEEE1394
A new, high speed external bus standard, also known as FireWire or iLink, which
supports data transfer rates of up to 400 Mbps for connecting up to 63 external
devices.
Internal Cache
Short for Level 1 cache, a memory cache built into the microprocessor. The L1 cache is
also called the primary cache.
IrDA (Infrared Data Association)
A group of device vendors, including computer, component and telecommunications,
who have developed a standard for transmitting data via infrared light waves. This
enables you to transfer data from one device to another without any cables.
IRQ (Interrupt Request Line)
IRQs are hardware lines over which devices can send interrupt signals to the
microprocessor. When you add a new device to a PC, you sometimes need to set its
IRQ number by setting a DIP switch. This specifies which interrupt line the device
may use. IRQ conflicts used to be a common problem when adding expansion boards,
but the Plug-and-Play specification has removed this headache in most cases.
ISA (Industry Standard Architecture)
ISA is a standard bus (computer interconnection) architecture that is associated with
the IBM AT motherboard. It allows 16 bits at a time to flow between the motherboard
circuitry and an expansion slot card and its associated device(s). Also see EISA and
MCA.
LAN (Local Area Network)
A computer network that covers a relatively smaller area, such as in a building or an
enterprise. It is made up of servers, workstations, shared resources, a network operat-
ing system and a communications link. These individual PCs and devices on a LAN are
known as “nodes”, and are connected by cables to access data and devices anywhere on
the LAN, so that many users can share expensive devices and data.
G-4
Glossary
LBA (Logical Block Addressing)
Logical block addressing is a technique that allows a computer to address a hard disk
larger than 528 megabytes. A logical block address is a 28-bit value that maps to a
specific cylinder-head-sector address on the disk. 28 bits allows sufficient variation to
specify addresses on a hard disk up to 8.4 gigabytes in data storage capacity. Logical
block addressing is one of the defining features of Enhanced IDE (EIDE), a hard disk
interface to the computer bus or data paths.
LED (Light Emitting Diode)
A semiconductor device that converts electrical energy into light. Since it lights up
(usually red) when electricity is passed through it, it is usually used for the activity
lights on computer’s component, such as disk drivers.
LPT (Line Printer Terminal)
Logical device name for a line printer; a name reserved by the MS-DOS for up to three
parallel printer ports: LPT1, LPT2, and LPT3. It is frequently used by the OS to
identify a printer.
Overclocking
Overclocking is resetting your computer so that the microprocessor runs faster than the
manufacturer-specified speed (for example, setting an Intel 166 MHz (megahertz)
microprocessor to run at 200 Mhz).
PCI (Peripheral Component Interconnect)
A local bus standard developed by Intel that first appeared on PCs in late 1993. PCI
provides “plug and play” capability and allows IRQs to be shared. The PCI controller
can exchange data with the system's CPU either 32 bits or 64 bits at a time.
PnP (Plug and Play)
A set of specifications that allows a PC to configure itself automatically to work with
peripherals. The user can "plug" in a peripheral device and "play" it without configur-
ing the system manually. To implement this useful feature, both the BIOS that sup-
ports PnP and a PnP expansion card are required.
POST (Power On Self Test)
During booting up your system, the BIOS executes a series of diagnostic tests, include
checking the RAM, the keyboard, the disk drives, etc., to see if they are properly
connected and operating.
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MS-6712 ATX Mainboard
PS/2 Port
A type of port developed by IBM for connecting a mouse or keyboard to a PC. The
PS/2 port supports a mini DIN plug containing just 6 pins. Most modern PCs equipped
with PS/2 ports so that the special port can be used by another device, such as a
modem.
RAID
RAID (Redundant Array of Independent Disks; originally Redundant Array of Inex-
pensive Disks) is a way of storing the same data in different places (thus, redundantly)
on multiple hard disks. By placing data on multiple disks, I/O operations can overlap in
a balanced way, improving performance. Since multiple disks increases the mean time
between failure (MTBF), storing data redundantly also increases fault-tolerance.
SCSI
Acronym for Small Computer System Interface. Pronounced "scuzzy," SCSI is a par-
allel interface standard used by Apple Macintosh computers, PCs, and many UNIX
systems for attaching peripheral devices to computers. SCSI interfaces provide for
faster data transmission rates (up to 80 megabytes per second) than standard serial and
parallel ports. In addition, you can attach many devices to a single SCSI port, so that
SCSI is really an I/O bus rather than simply an interface.
USB (Universal Serial Bus)
A hardware interface for low-speed peripherals such as the keyboard, mouse, joystick,
etc. USB provides a maximum bandwidth of 12 Mbit/sec (Mbps) for connecting up to
127 peripheral devices to PC. USB features hot swap capability and multiple data
streams, allows external devices to be plugged in and unplugged without turning the
system off.
Virus
A program or a piece of code that infects computer files by inserting in those files
copies of itself. The virus code is buried within an existing program, and is activated
when that program is executed. All the viruses are man-made, and often have damaging
side effects.
WLAN
Acronym for wireless local-area network. Also referred to as LAWN. A type of local-
area network that uses high-frequency radio waves rather than wires to communicate
between nodes.
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