MSI MS-6161 User manual

CHAPTER 1CHAPTER 1
CHAPTER 1CHAPTER 1
CHAPTER 1 INTRODUCTIONINTRODUCTION
INTRODUCTIONINTRODUCTION
INTRODUCTION
1-1
The ATX LX11 mainboard is a high-performance personal computer
mainboard based on the Socket 370 Intel® CeleronTM processor. The Intel®
CeleronTM processor supports MMXTM (Multimedia Extension) technology.
The mainboard uses the highly integrated Intel® 82443LX AGP chipset to
support the PCI/ISA and Green standards, and to provide the Host/AGP
bridge. The Intel® 82371EB chipset integrates all system control functions
such as ACPI (Advanced Configuration and Power Interface). The ACPI
provides more Energy Saving Features for the OSPM(OS Direct Power
Management) function. The Intel® 82371EB chipset also improves the IDE
transfer rate by supporting Ultra DMA/33 IDE that transfers data at the rate
of33MB/s.
The mainboard also supports the System Hardware Monitor Controller as an
optional function. Its functions include: CPU /power supply/chassis fan
revolution detect, CPU/system voltage monitor, system temperature monitor,
and chassis intrusion detect(optional).
Chapter 1
INTRODUCTION

CHAPTER 1CHAPTER 1
CHAPTER 1CHAPTER 1
CHAPTER 1 INTRODUCTIONINTRODUCTION
INTRODUCTIONINTRODUCTION
INTRODUCTION
1-2
1.1 Mainboard Features
CPU
lSocket 370 for Intel® CeleronTM processor.
lSupport300MHz,333MHz,366MHz,400MHz, 466MHzandfaster.
Chipset
lIntel® 82440LX chipset.
ClockGenerator
l66.6/68MHz clocks are supported
l75/83MHz are only used for overclocking.
MainMemory
lSupport six memory banks using three 168-pin unbuffered DIMM.
lSupporta maximum memorysizeof 384MB for EDO/SDRAM
lSupport 3.3v Extended Data Output (EDO) and SDRAM DIMM.
Slots
lOne AGP (Accelerated Graphics Port) slot.
- AGP specification
- AGP 66/133MHz 3.3v device support
lFive 32-bit Master PCI Bus slots and two 16-bit ISA bus slots (wherein
one PCI/ISA slot is shared)
*See Chapter 2-24 for further details on PCI slots.
lSupport 3.3v/5v PCI bus Interface.
On-BoardIDE
lAn IDE controller on the Intel® 82371EB PCI Chipset provides IDE HDD/
CD-ROM with PIO, Bus Master and Ultra DMA/33 operation modes.
lCan connect up to four IDE devices.

CHAPTER 1CHAPTER 1
CHAPTER 1CHAPTER 1
CHAPTER 1 INTRODUCTIONINTRODUCTION
INTRODUCTIONINTRODUCTION
INTRODUCTION
1-3
On-BoardPeripherals
lOn-BoardPeripheralsinclude:
-1floppyportsupports2FDDwith360K,720K,1.2M,1.44Mand
2.88Mbytes.
-2serialports(COMA+COMB)
- 1 parallel port supports SPP/EPP/ECP mode
- 2 USB ports
- 1 IrDA connector for SIR.
Audio(Optional)
lCreative® ES1373
-PCI 2.1 compliant
-PC97/PC98specification compliant
- 3D audio effects.
- 64-voice wavetable synthesizer
- Direct Sound Hardware Accelerator
- Direct Music Hardware Accelerator
-Full-Duplexstereo
BIOS
lThe mainboard BIOS provides “Plug & Play” BIOS which detects the
peripheral devices and expansion cards of the board automatically.
lThe mainboard provides a Desktop Management Interface(DMI) function
which records your mainboard specifications.
Dimension
lATXForm Factor: 30.5cm(L)x 19cm(W) x4layers PCB
Mounting
l6 mounting holes.

CHAPTER 1CHAPTER 1
CHAPTER 1CHAPTER 1
CHAPTER 1 INTRODUCTIONINTRODUCTION
INTRODUCTIONINTRODUCTION
INTRODUCTION
1-4
SystemHardwareMonitor(optional)
lCPU/Power Supply/Chassis Fan Revolution Detect
lCPU Fan Control (the fan will automatically stop when the system enters
suspend mode)
lSystem Voltage Detect
lCPU Overheat Warning.
lDisplay Actual Current Voltage
OtherFeatures
l Keyboard Password Wake-Up
l LAN Wake-UP
l Internal/External Modem Wake-Up
l SB_Link Ready

CHAPTER 1CHAPTER 1
CHAPTER 1CHAPTER 1
CHAPTER 1 INTRODUCTIONINTRODUCTION
INTRODUCTIONINTRODUCTION
INTRODUCTION
1-5
1.2 Mainboard Layout
MS-6161 ATX LX11 Mainboard
Socket 370
FW82443LX
ATX Power Supply
JVSB1
(Reserved)
JSFAN
FDD
IR
DIMM 1
DIMM 2
DIMM 3
HDD
HDD
JSCSI1
J2: MDM_IN(Optional)
J3:AUX_IN (Optional)
J5:CD_IN (Optional)
J9
JBAT1
JWOL1 SW1
(Reserved)
1
4
FW82371EB
JMDM1
JSB_Link1 BATT
+
JFP1
BUZZER
(Optional)
JCFAN
JPFAN
AGP SLOT
PCI SLOT 1
PCI SLOT 2
PCI SLOT 3
PCI SLOT 4
PCI SLOT 5
ISA SLOT 1
ISA SLOT 2
Creative
ES1373
(Optional)
BIOS
Top: Mouse
Bottom:
Keyboard
USB
Top:Port1
Bottom:
Port2
Top: LPT
Bottom:
COMA
COMB
Top: Midi/
GamePort
(Optional)
Bottom:
Line-Out
Line-In
Mic(Optional) J4
RT3

CHAPTER 2 HARDWARE INSTALLATION
2-1
CPU
CPU
Chapter 2
HARDWARE INSTALLATION
2.1 Central Processing Unit: CPU
The mainboard operates with Intel® CeleronTM processor. The mainboard
uses a CPU socket called Socket 370 for easy CPU installation. The CPU
should always have a Heat Sink and a cooling fan attached to prevent
overheating.
3. Press the lever down to
complete the installation.
2. Locate Pin 1 in the socket
and look for the white dot or
cut edge in the CPU. Match
Pin 1 with the white dot/cut
edge. Then, insert the CPU.
It should insert easily.
OpenLever
Pin1
Sliding
Plate
White dot/
Cut edge
Close
Lever
1. Pull the lever sideways away
from the socket. Then, raise
the lever up to a 90-degree
angle.
2.1-1 CPU Installation Procedures
Pin1

CHAPTER 2 HARDWARE INSTALLATION
2-2
1 2 3 4 Core/Bus Ratio
ON ON ON ON 2
ON ON OFF ON 3
ON OFF OFF ON 3.5
ON ON ON OFF 4
ON OFF ON OFF 4.5
ON ON OFF OFF 5
ON OFF OFF OFF 5.5
OFF ON ON ON 6
OFF OFF ON ON 6.5
OFF ON OFF ON 7
OFF OFF OFF ON 7.5
OFF ON ON OFF 8
2.1-2 CPU Core Speed Derivation Procedure
1. This mainboard can auto-detect the Core/Bus (Fraction) ratio of the CPU.
If CPUClock = 66MHz
Core/Bus ratio = 5.5
then CPU core speed = Host Clock x Core/Bus ratio
= 66MHzx5.5
= 366MHz
SW1 CPU
ON = Short OFF = Open
Note: SW1 is reserved for future use.

CHAPTER 2 HARDWARE INSTALLATION
2-3
2. The Jumper Switch J4 (1, 2, and 3) is used to set the CPU Bus frequency.
1 2 3 Bus Frequency
open open open 66MHz
open open short 68MHz
open short open 75MHz
short open short 83MHz
J4 CPU
Note: You can set the CPU Bus Frequency through J4 or BIOS setting. If
you set this in the BIOS setting, the Jumper Switch J4 setting will
be void.

CHAPTER 2 HARDWARE INSTALLATION
2-4
2.1-3 CPU Speed Setting: SW1 & J4
To adjust the speed of the CPU, you must know the specification of
your CPU (always ask the vendor for CPU specification). The
mainboard can auto-detect 66MHz CPU Bus Frequency.
2
1
3
4
SW1
(RESERVED)
J4
Note: SW1 is reserved for future use.

CHAPTER 2 HARDWARE INSTALLATION
2-5
SENSOR
+12V
GND
JPFAN
JSFAN
+12V
SENSOR
GND
JCFAN
+12V
GND
2.1-4 Fan Power Connectors: JCFAN/JPFAN/JSFAN
These connectors support system cooling fan with + 12V. It supports three
pin head connector. When connecting the wire to the connector, always
take note that the red wire is the positive and should be connected to the
+12V, the black wire is Ground and should be connected to GND. If your
mainboard has System Hardware Monitor chipset on-board, you must use a
specially designed fan with speed sensor to take advantage of this function.
For fans with fan speed sensor, every rotation of the fan will send out 2
pulses. System Hardware Monitor will count and report the fan rotation
speed.
Note: 1. Always consult vendor for proper CPU cooling fan.
SENSOR
JCFAN : Processor Fan
JPFAN: Power Supply Fan
JSFAN: Chassis Fan

CHAPTER 2 HARDWARE INSTALLATION
2-6
2.2 Clear CMOS Jumper: JBAT1
A battery must be used to retain the mainboard configuration in CMOS
RAM. Short 1-2 pins of JBAT1 to store the CMOS data.
Keep Data Clear Data
11
3
3
Note: 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. Always unplug
the power cord from the wall socket.
22
JBAT1
1
3

CHAPTER 2 HARDWARE INSTALLATION
2-7
2.3 Memory Installation
2.3-1 Memory Bank Configuration
Themainboardsupportsa maximum memory size of 384MB for EDO/
SDRAM: It providesthree168-pinunbufferedDIMMs (Double In-Line
Memory Module) sockets. It supports 8 MB to 128 Mbytes DIMM memory
module.
DIMM1(Bank0+ Bank1) DIMM2(Bank2+Bank3)
DIMM2(Bank4+Bank5)

CHAPTER 2 HARDWARE INSTALLATION
2-8
A. HowtoinstallaDIMMModule
1. The DIMM slot has 2 Notch Keys “VOLT and DRAM”, so the
DIMM memory module can only fit in one direction.
2. Insert the DIMM memory module vertically into the DIMM slot.
Then push it in.
3. The plastic clip at the side of the DIMM slot will automatically
close.
Single Sided DIMM
Double Sided DIMM
VOLTDRAM
2.3-2 Memory Installation Procedures

CHAPTER 2 HARDWARE INSTALLATION
2-9
1. Supports only EDO/SDRAM DIMM.
2. To operate properly, at least one 168-pin DIMM module must be in-
stalled.
3. This mainboard supports Table Free memory, so memory can be installed
on DIMM1, DIMM 2 or DIMM 3 in any order.
4. Supports 3.3 volt DIMM.
5. The DRAM addressing and the size supported by the mainboard is
shown below:
2.3-3 Memory Population Rules
16M 1Mx16 SYMM 10 10 8MBx4 16MBx8
1Mx16 ASYM 12 8 8MBx4 16MBx8
2Mx8 ASYM 11 10 16MBx8 32MBx16
2Mx8 ASYM 12 9 16MBx8 32MBx16
4Mx4 SYMM 11 11 32MBx16 64MBx32
4Mx4 ASYM 12 10 32MBx16 64MBx32
64M 2Mx32 ASYM 11 10 16MBx2 32MBx4
2Mx32 ASYM 12 9 16MBx2 32MBx4
2Mx32 ASYM 13 8 16MBx2 32MBx4
4Mx16 SYMM 11 11 32MBx4 64MBx8
4Mx16 ASYM 12 10 32MBx4 64MBx8
8Mx8 ASYM 12 11 64MBx8128MBx16
DRAM
Tech.
DRAM
Density &
Width
DRAM
Addressing Address Size MB/DIMM
Row Column Single
Side(S) Double Side(D)
Table 2.3-1 EDO DRAM Memory Addressing
no.
pcs. no.
pcs.

CHAPTER 2 HARDWARE INSTALLATION
2-10
Table 2.3-2 SDRAM Memory Addressing
16M 1Mx16 ASYM 11 8 8MBx4 16MBx8
2Mx8 ASYM 11 9 16MBx8 32MBx16
64M 2Mx32 ASYM 11 9 32MBx2 64MBx4
2Mx32 ASYM 12 8 16MBx2 32MBx4
4Mx16 ASYM 11 10 32MB 64MB
4Mx16 ASYM 13 8 32MB 64MB
8Mx8 ASYM 13 9 64MB 128MB
64M 2Mx32 ASYM 11 8 16MB 32MB
4Mx16 ASYM 12 8 --- ---
8Mx8 ASYM 12 9 --- ---
DRAM
Tech.
DRAM
Density &
Width
DRAM
Addressing Address Size MB/DIMM
Row Column Single
Side(S) Double
Side(D)
no.
pcs. no. pcs.

CHAPTER 2 HARDWARE INSTALLATION
2-11
2.4 Case Connector: JFP1
ThePowerSwitch,ResetSwitch, PowerLED, Speaker, Keylock and HDD
LED are all connected to the JFP1 connector block.
JFP1
Power
Switch
Power LED
+
Reset
Switch
HDD
LED
+
Speaker
Buzzer
(short
pin)
14
15
Keylock
Dual
Color
LED
Single
Color
LED

CHAPTER 2 HARDWARE INSTALLATION
2-12
2.4-1 Power Switch
Connect to a 2-pin push button switch. This switch has the same feature
withJRMS1.
2.4-2 Reset Switch
Reset switch is used to reboot the system rather than turning the power ON/
OFF. Avoid rebooting while the HDD LED is lit. You can connect the Reset
switch from the system case to this pin.
2.4-3 Power LED
The Power LED is lit while the system power is on. Connect the Power LED
from the system case to this pin. There are two types of LED that you can
use:3-pinsinglecolorLEDor2-pindualcolorLED(ACPIrequest).
a. 3 pin single color LED connect to pin 4, 5, & 6. This LED will lit
when the system is on.
b. 2 pin dual color LED connect to pin 5 & 6.
GREENColor: Indicate the system is full on mode.
ORANGEColor: Indicate the system is in suspend mode.
2.4-4 Speaker
Speaker from the system case is connected to this pin.
Ifon-boardBuzzerisavailable:
Shortpin14-15: On-board Buzzer Enabled.
Openpin 14-15: On-board Buzzer Disabled.
2.4-5 HDD LED
HDD LED shows the activity of a hard disk drive. Avoid turning the power
off while the HDD led is lit. You can connect the HDD LED from the system
case to this pin.
2.4-6 Keylock
Keylock allows you to disable the keyboard for security purposes. You can
connect the keylock to this pin.

CHAPTER 2 HARDWARE INSTALLATION
2-13
2.5 Floppy Disk Connector: FDD
The mainboard also provides a standard floppy disk connector FDD that
supports 360K, 720K, 1.2M, 1.44M and 2.88M floppy disk types. This
connector supports the provided floppy drive ribbon cables.
FDD
1

CHAPTER 2 HARDWARE INSTALLATION
2-14
2.6 Hard Disk Connectors: IDE1 & IDE2
The mainboard has a 32-bit Enhanced PCI IDE Controller that provides PIO
mode 0~4, Bus Master, and Ultra DMA/33 function. It has two HDD
connectors IDE1 (primary) and IDE2 (secondary). You can connect up to
four hard disk drives, CD-ROM, 120MB Floppy (reserved for future BIOS)
and other devices to IDE1 and IDE2. These connectors support the
provided IDE hard disk cable.
IDE1(PrimaryIDEConnector)
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(SecondaryIDE Connector)
IDE2 can also connect a Master and a Slave drive.
Primary IDE Connector
Secondary IDE Connector
11

CHAPTER 2 HARDWARE INSTALLATION
2-15
2.7 Power Supply
2.7-1 ATX 20-pin Power Connector: JWR1
This connector supports the power button on-board. Using the ATX power
supply, functions such as Modem Ring Wake-Up and Soft Power Off are
supported by this mainboard. This power connector supports instant power
on function which means that system will boot up instantly when the power
connector is inserted on the board.
PIN SIGNAL
11 3.3V
12 -12V
13 GND
14 PS_ON
15 GND
16 GND
17 GND
18 -5V
19 5V
20 5V
PIN SIGNAL
1 3.3V
2 3.3V
3 GND
45V
5 GND
65V
7 GND
8 PW_OK
9 5V_SB
10 12V
PINDEFINITION
Warning: Since the mainboard has the instant power on function, make
sure that all components are installed properly before inserting the power
connector to ensure that no damage will be done.
ATX
Power Connector
11
20
10 1