MSI Kt4avl Manual

							2-3 Hardware SetupCentral Processing Unit: CPU
The mainboard supports AMD®
 Athlon™, Athlon™ XP and Duron™
processors in the 462 pin package. The mainboard uses a CPU socket called
Socket A for easy CPU installation. When you are installing the CPU, make
sure the CPU has a heat sink and a cooling fan attached on the top to
prevent overheating. If you do not find the heat sink and cooling fan, contact
your dealer to purchase and install them before turning on the computer.
As processor technology pushes to faster speeds and higher performance, ther-
mal management becomes increasingly crucial when building computer
systems.  Maintaining the proper thermal environment is key to reliable
operation.  As such, the processor must be maintained in the specified thermal
requirements.
AMD Athlon™/Duron™/Athlon™ XP processor with a speed of 1100MHz
and above requires a LARGER heatsink and fan. You also need to add thermal
grease between the CPU and heatsink to improve heat dissipation.  Then, make
sure that the CPU and heatsink are securely fastened and in good contact with
each other.  These are needed to prevent damaging the processor and ensuring
reliable operation.  If you want to get more information on the proper cooling,
you can visit AMD’s website for reference. WARNING!Thermal Issue for CPU CPU Core Speed Derivation Procedure
  IfCPU Clock=100MHz
Core/Bus ratio=14
  thenCPU core speed=Host Clock x Core/Bus ratio=100MHz  x  14
=1.4 GHz 
						

							2-4
 MS-6712 ATX Mainboard
1.Please turn off the power and
unplug the power cord before
installing the CPU.
2.Pull the lever sideways away
from the socket.  Make sure
to raise the lever up to a 90-
degree angle.
3. Look for the gold arrow. The
gold arrow should point to-
wards the lever pivot. The
CPU can only fit in the correct
orientation.
4. If the CPU is correctly
installed, the pins should be
completely embedded into the
socket and can not be seen.
Please note that any violation
of the correct installation
procedures may cause
permanent damages to your
mainboard.
5.  Press the CPU down firmly
into the socket and close the
lever.  As the CPU is likely to
move while the lever is being
closed, always close the lever
with your fingers pressing
tightly on top of the CPU to
make sure the CPU is
properly and completely
embedded into the socket.
CPU Installation Procedures for Socket 462
Open Lever
Gold arrow
Gold arrow90 degree
Correct CPU placement
Incorrect CPU placement Gold arrow Sliding 
Plate
Close 
Lever Press down
the CPU
X O 
						

							2-5
Hardware Setup
Installing AMD Athlon CPU (Socket 462) Cooler Set
Apply some heat
sink paste
MSI Reminds You...
Please apply some heat sink paste on top of your CPU to
dissipate the heat more effectively. The following instructions will guide
you through the heat sink installation
procedures.  Please consult your agent
for the proper CPU cooler set.
1. Position your CPU cooler set onto
the CPU.
2. Use one end of the clip to hook
the latch of the CPU sliding plate.
3. Hook the other latch to fix the
cooling fan set. You may need a
screw drive to press down the
other side of the clip.
4. Connect the fan to the power sup-
ply connector provided on your
mainboard. 
						

							2-6
 MS-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. 
						

							2-7
Hardware Setup
Memory
The mainboard provides 3 slots for 184-pin DDR SDRAM DIMM
(Double In-Line Memory Module) modules and supports the memory size up
to 3GB. You can install PC3200/DDR400, PC2700/DDR333, PC2100/
DDR266 or PC1600/DDR200 modules on the DDR DIMM slots.  Please note
that the mainboard  supports only one DDR400 DIMM.
DDR DIMM Slots
(DDR 1~3)
Introduction to DDR SDRAM
DDR (Double Data Rate) SDRAM is similar to conventional SDRAM,
but doubles the rate by transferring data twice per cycle.  It uses 2.5 volts as
opposed to 3.3 volts used in SDR SDRAM, and requires 184-pin DIMM 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. 
						

							2-8
 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:
Installing DDR Modules
1.The DDR DIMM has only one notch on the center of module.  The mod-
ule will only fit in the right orientation.
2.Insert the DIMM memory module vertically into the DIMM slot. Then
push it in until the golden finger on the memory module is deeply in-
serted in the socket.
 3.The plastic clip at each side of the DIMM slot will automatically close.
MSI Reminds You...
You can barely see the golden finger if the module is properly
 inserted in the socket.
VoltNotch
S: Single Side D: Double Side
Slot Memory ModuleTotal Memory
DIMM 1 S/D 64MB~1GB
(Bank 0 & 1)
DIMM 2 S/D 64MB~1GB
(Bank 2 & 3)
DIMM 3 S/D 64MB~1GB
(Bank 4 & 5)
Maximum System Memory Suppported64MB~3GB 
						

							2-9
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.
PIN SIGNAL
11 3.3V
12 -12V
13 GND
14 PS_ON
15 GND
16 GND
17 GND
18 -5V
19 5V
20 5VPIN SIGNAL
1 3.3V
2 3.3V
3 GND
45V
5 GND
65V
7 GND
8 PW_OK
9 5V_SB
10 12V
JWR1 Pin Definition
JWR1
101
2011 
						

							2-10
 MS-6712 ATX Mainboard
The back panel provides the following connectors:
Back Panel
Mouse Connector
The mainboard provides a standard PS/2® mouse mini DIN connector
for attaching a PS/2® mouse.  You can plug a PS/2® mouse directly into this
connector.  The connector location and pin assignments are as follows:
PIN SIGNAL DESCRIPTION
1 Mouse DATA Mouse DATA
2 NC No connection
3 GND Ground
4 VCC +5V
5 Mouse Clock Mouse clock
6 NC No connection
 Pin Definition
PS/2 Mouse (6-pin Female)
213
45 6
Mouse
Keyboard
USBParallel
COM A COM B
L-out L-in MIC LAN
(Optional)
USB 
						

							2-11
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 SIGNAL DESCRIPTION
1 Keyboard  DATA Keyboard  DATA
2 NC No connection
3 GND Ground
4 VCC +5V
5 Keyboard Clock Keyboard clock
6 NC No connection
 Pin Definition
PS/2 Keyboard (6-pin Female)
213
45 6
USB Connectors
The mainboard provides a UHCI (Universal Host Controller Interface)
Universal Serial Bus root for attaching USB devices such as keyboard, mouse
or other USB-compatible devices.  You can plug the USB device directly into
the connector.
PIN SIGNAL DESCRIPTION
1 VCC +5V
2 -Data 0 Negative Data Channel 0
3 +Data0 Positive Data Channel 0
4 GND Ground
5 VCC +5V
6 -Data 1 Negative Data Channel 1
7 +Data 1 Positive Data Channel 1
8 GND Ground
USB Port Description
USB Ports
1     2     3     4
5     6     7     8 
						

							2-12
 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 SIGNAL DESCRIPTION
1 STROBE Strobe
2 DATA0 Data0
3 DATA1 Data1
4 DATA2 Data2
5 DATA3 Data3
6 DATA4 Data4
7 DATA5 Data5
8 DATA6 Data6
9 DATA7 Data7
10 ACK# Acknowledge
11 BUSY Busy
12 PE Paper End
13 SELECT Select
14 AUTO FEED# Automatic Feed
15 ERR# Error
16 INIT# Initialize Printer
17 SLIN# Select In
18 GND Ground
19 GND Ground
20 GND Ground
21 GND Ground
22 GND Ground
23 GND Ground
24 GND Ground
25 GND Ground
Pin Definition