MSI MICRO ATX AL12 Manual de usuario

CHAPTER 1 INTRODUCTION

1-1

Chapter 1

INTRODUCTION

The MICRO ATX AL12 mainboard is a high-performance personal computer

mainboard. This mainboard supports Intel® Pentium® processor/Pentium®

processor with MMXTM technology,AMD® K5/K6/K6-2, and Cyrix® 6x86/

6x86L/6x86MX/MII processors. This mainboard combines leading edge

AGPATI®3D 128VR technology in graphics and Creative®ES1373PCI

Enhanced technology in audio. The mainboard also supports three 32-bit

PCI (Peripheral Component Interconnect) Local Bus standard slots.

The mainboard uses the highly integrated Aladdin® 5 chipset to support the

PCI/ISA and Green standards, and to provide the Host/AGP bridge. The

Aladdin® 5 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 Aladdin® 5 chipset also improves the IDE transfer rate by

supporting Ultra DMA/33 IDE that transfer data at the rate of 33MB/s.

The mainboard also supports the Hardware Monitor Controller as an

optional function. This function includes: CPU/chassis/power fan control,

CPU temperature detect and protect, and system voltage detect.

CHAPTER 1 INTRODUCTION

1-2

1.1 Mainboard Features

CPU

lSocket 7 supports Intel®Pentium®processor/Pentium®processor with

MMXTM technology.

lCyrix®6x86/6x86L/6x86MX/MIIaresupported.

lAMD®K6/K6-2/K6-3 processors are supported.

Chipset

lAladdin® 5M1541/M1543Cchipset.

FSB (Front Side Bus)

l100/95/83.3/75/66/60MHzclocksaresupported.

Cache Memory

lSupports 512K or 1MB Pipelined Burst cache memory.

Switching Regulator

lProvidesCPUwithvoltagerangingfrom1.3Vto3.5V

lSupport VI/O 3.45 for AMD K6 300 processor

Main Memory

lSupports four memory banks using two 168-pin unbuffered DIMM.

lSupportsamaximummemorysize of 256MB.

lSupports 3.3v Extended Data Output (EDO) and SDRAM DIMM.

Slots

lThree 32-bit Master PCI Bus slots and one 16-bit ISA bus slots. (wherein

one PCI/ISA is shared)

lSupports 3.3v/5v PCI bus Interface.

On-Board IDE

lAn IDE controller on the Aladdin®M1543C PCI Chipset provides IDE

HDD/CD-ROMwith PIO, DMA and Ultra DMA/33 operation modes.

lConnect up to four IDE devices.

CHAPTER 1 INTRODUCTION

1-3

Video

lATI®3D 128 VR

-Running on AGP BUS.

-Onboard8MB SDRAM.

- 3D Acceleration.

Audio

lCreative®ES1373

-Runningon PCI BUS.

-64VoiceandAC3Capable

- Support Direct Sound and Direct Sound 3D

-AC97’Compliant

On-Board Peripherals

lOn-BoardPeripherals include:

- 1 floppy port supports 2 FDD with 360K, 720K, 1.2M, 1.44M and

2.88Mbytes.

- 1 serial ports (COMA)

- 1 parallel port supports SPP/EPP/ECP mode

- 2 USB ports

-1 IrDA connector for SIR/FIR.

-1VGAport

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

lMicro-ATXformfactor: 24.4cm(L)x 24.5cm(W)x 4layersPCB

Mounting

l7 mounting holes.

CHAPTER 1 INTRODUCTION

1-4

Remote Control

lMeet ACPI specifications.

lPower ON/OFF switch connector on-board.

lSoftPower-Off.

lSupport modem ring wake-up .

lSupportalarmwake-up.

lSupport LAN wake-up.

CHAPTER 1 INTRODUCTION

1-5

1.2 Mainboard Layout

MS-5185 MICRO ATX AL12 Mainboard

Socket 7

DIMM

DIMM 2

FDD1

IDE 1

PCISlot

BIOS

IDE 2

PCISlot

ISA Slot

ATX

PowerSupply

Aladdin® 5

chipset

T:Mouse

Keyboard

T:PrinterPort

B:SerialPort/

VGAPort

USB

Ports

Batt

DIMM 1

PCUFAN

Socket 7

ATI® 3D

RAGE

PRO

Turbo

Creative

ES1371

JTAD1

JAUX1

CHSFAN

JFP1

Aladdin®

M1543C

chipset

SDRAM

Top: Midi/

GamePort

Bottom:

Line-In

Line-Out

Mic

SDRAM

JCD1

JSFAN

JV1 1

JSCL1

JCMOS

CHAPTER 2 HARDWARE INSTALLATION

2-1

CPU

Chapter 2

HARDWARE INSTALLATION

2.1 Central Processing Unit: CPU

The MICROATXAL12mainboard operates with Intel®Pentium®proces-

sor/Pentium® processor withMMXTM technology,AMD®K5/K6/K6-2,and

Cyrix®6x86/6x86L/6x86MX/MII processors. It could operate with 2.0V to

3.5V processors. The mainboard provides a 321-pin ZIF Socket 7 for easy

CPU installation, a DIP switch (SW1) to set the proper speed for the CPU

and (JV1) for setting the CPU voltage. It is recommended that the processor

should have a cooling fan attached to prevent from 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

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 Procedure

CHAPTER 2 HARDWARE INSTALLATION

2-2

2.1-2 CPU Core Speed Derivation Procedure

4 5 6 Clock

OFF OFF OFF 100MHz

ON OFF OFF 95MHz

OFF ON OFF 83MHz

OFF OFF ON 75MHz

OFF ON ON 66MHz

ON ON ON 60MHz

ON OFF ON 68MHz

SW1 CPU

1. The DIP Switch SW1 (4, 5, & 6) is used to adjust the CPU clock frequency.

2. The DIP Switch SW1 (1, 2, and 3) is used to set the Core/Bus (Fraction)

ratio of the CPU. The actual core speed of the CPU is the Host Clock

Frequency multiplied by the Core/Bus ratio. For example:

If CPUClock = 66MHz

Core/Busratio = 3/2

then CPUcore speed = Host Clock x Core/Bus ratio

= 66MHz x 3/2

= 100MHz

SW1 CPU

1 2 3 Core/Bus Ratio

OFF OFF ON 5.5x

OFF ON ON 5x

ON ON ON 4.5x

ON OFF ON 4x

OFF OFF OFF 3.5x

OFF ON OFF 3x

ON ON OFF 2.5x

ON OFF OFF 2x

CHAPTER 2 HARDWARE INSTALLATION

2-3

2.1-3 CPU Voltage Setting: JV1

JV1

Vcore

V I/O

3.4 3.4

3.4 3.3

3.4 3.2

3.4 2.9

JV1 VcoreV I/O

3.4 2.8

3.4 2.3

3.4 2.2

JV1

CHAPTER 2 HARDWARE INSTALLATION

2-4

1 2 3 4 5 VI/O VCore

OFF OFF OFF OFF ON 3.45 1.3

ON OFF OFF OFF ON 3.45 1.35

OFF ON OFF OFF ON 3.45 1.4

ON ON OFF OFF ON 3.45 1.45

OFF OFF ON OFF ON 3.45 1.5

ON OFF ON OFF ON 3.45 1.55

OFF ON ON OFF ON 3.45 1.6

ON ON ON OFF ON 3.45 1.65

OFF OFF OFF ON ON 3.45 1.7

ON OFF OFF ON ON 3.45 1.75

OFF ON OFF ON ON 3.45 1.8

ON ON OFF ON ON 3.45 1.85

OFF OFF ON ON ON 3.45 1.9

ON OFF ON ON ON 3.45 1.95

ON ON ON ON ON 3.45 2.0

ON OFF OFF OFF OFF 3.45 2.1

OFF ON OFF OFF OFF 3.45 2.2

ON ON OFF OFF OFF 3.45 2.3

OFF OFF ON OFF OFF 3.45 2.4

ON OFF ON OFF OFF 3.45 2.5

OFF ON ON OFF OFF 3.45 2.6

ON ON ON OFF OFF 3.45 2.7

OFF OFF OFF ON OFF 3.45 2.8

ON OFF OFF ON OFF 3.45 2.9

OFF ON OFF ON OFF 3.45 3.0

ON ON OFF ON OFF 3.45 3.1

OFF OFF ON ON OFF 3.45 3.2

ON OFF ON ON OFF 3.45 3.3

OFF ON ON ON OFF 3.45 3.4

ON ON ON ON OFF 3.45 3.5

Other CPU Voltage Setting

CHAPTER 2 HARDWARE INSTALLATION

2-5

To set the proper speed and voltage of the CPU, you must know the specifi-

cations of your CPU (always ask the vendor for CPU specifications).

Then refer to Table 2.1 (Intel®Processor), Table 2.2 (Cyrix®

Processor), and Table 2.3 (AMD®Processor) for proper setting.

2.1-3 CPU Speed and Voltage Setting: SW1 and JV1

SW1

JV1

OFF

1234

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