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