MSI MS-5148 Manuale utente

CHAPTER 1 INTRODUCTION

1-1

Chapter 1

Introduction

The PCI 430 TX system board is a high-performance personal computer

system board based on a 3.3v version of the PentiumTM micrprocessor--the

P54C and P55C, K6 and M2 with MMX microprocessor. The system board

supports the Peripheral Component Interconnect (PCI) Local Bus Standard

and provide four 32-bit PCI bus master slots.

A cache subsystem can be configured for 256k or 512K cache memory to

improve overall throughput.

The system board uses the highly integrated Intel 82439TX chipset to

support the PCI/ISA and green standards, and to provide the Host/PCI

bridge. The 82437AB chipset also support the ACPI soft power off and

Modem Ring wake-up function, it also integrates all system control func-

tions.

CHAPTER 1 INTRODUCTION

1-2

1.1 System Board Features

CPU

lSocket 7 supports Intel PentiumTM family--P54CandP55C((MMX)

90MHz/100MHz/120Mhz/133MHz/150MHz/166MHz/200MHz/233MHz

lThe Cyrix 6x86/M2 and AMD K5/K6 are also supported.

Chip Set

lIntel 82430TX

Cache Memory

lSupports Directed Map Organization,Write-Back cache policy.

lSupports 256K pipelined burst cache memory or 512K pipelined burst

cachememory.

Main Memory

lSupports six memory banks using four 72-pin SIMM sockets and two 168-

pin DIMM sockets.

lUp to 256 Mbytes main memory.

lSupports EDO Hyper Page Mode DRAM , Standard Fast Page mode

DRAMandSDRAM.

Slots

lFour 32-bit Master PCI Bus slots and four 16-bit ISA bus slots. One

shared slot that can be used as ISA or PCI.

lSupport3.3VPCIAdd-OnCard.

On-Board Peripherals

lOn-BoardPeripheralsinclude:

- 1 floppy port supports 2FDD

-2serialports(COMA+COMB)

- 1 parallel port supports ECP or EPP mode

- 2 PCI Bus Master IDE ports (up to four IDE HDD)

- 2 Channel USB port

CHAPTER 1 INTRODUCTION

1-3

Dimensions

lStandard ATX form factor

l30cm(L)x18.6cm(W)x4layerPCB

Mounting

l6 mounting holes

CHAPTER 1 INTRODUCTION

1.3 System Board Layout

MS-5148

SIMM1

SIMM2

SIMM3

SIMM4

DIMM1

DIMM2

Socket 7

FDD

IDE1

IDE2

ISA SLOT 4

ISA SLOT 2

ISA SLOT 3

ISA SLOT 1

PCI SLOT 4

PCI SLOT 3

PCI SLOT 2

PCI SLOT 1

BIOS

BATT

2032

JPF

JGS

JGL

JP2

INTEL

FW82371AB

INTEL

FW82439TX

JBAT JRMS2

JFAN

ATX

POWER CONNECTOR

KBC

JV1

LPT

COMA & COMB USB PS/2

JV3

JV4

JV5

ON DIP

134

156

JV6

JRMS1

1-4

CHAPTER 2 HARDWARE INSTALLATION

CPU

OpenLever

Pin1

Sliding

Plate

White dot/

Cut edge

Lever

Chapter 2

Hardware Installation

2.1 Central Processing Unit: CPU

The430 TX motherboard operates withIntel®P54C/P55C,Cyrix®6x86/

M2andAMD®5K86/K6processors. It could operates with 2.8V to 3.52V

processors. The motherboard provides a 321-pin ZIF Socket 7 for easy CPU

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

Jumper block (JV3 - JV7) for setting the CPU voltage. The CPU should

always have a cooling fan attached to prevent overheating.

2-1

1. Pull the lever sideways away

from the socket then raise

the lever up to a 90-degree

angle.

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.

2.1-1 CPU Installation Procedure

CHAPTER 2 HARDWARE INSTALLATION

1. The 3 CPU clock frequencies that the system supports are 55MHz, 60MHz,

66MHz and 75MHz (To adjust SW1 pin 4, 5, and 6 ). See the following

chart to set the different Host Clock Frequencies.

4 5 6 Clock

ON ON OFF 55MHz

ON OFF OFF 60MHz

OFF OFF OFF 66MHz

OFF ON OFF 75MHz

SW1 CPU

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/Bus ratio = 3/2

then CPU core speed = Host Clock xCore/Bus ratio

= 66MHzx3/2

= 100MHz

3. The PCI Bus Clock is the CPU Clock Frequency divided by 2.

2.1-2 CPU Core Speed Derivation Procedure

1 2 3 Core/BusRatio

OFF OFF OFF 1.5/3.5

ON OFF OFF 2

ON ON OFF 2.5/1.75

OFF ON OFF 3

SW1 CPU

2-2

CHAPTER 2 HARDWARE INSTALLATION

2.9

VcoreV I/O

3.38 3.38

3.52 3.52

3.3 2.8

3.3

3.3 3.2

JV3~JV7

2.1-3 CPU Voltage Setting: JV3 - JV7

The system board can autodetect whether the CPU is single or dual voltage.

To adjust the Jumper setting of the CPU’s Vcore, just look at table below and

set accordingly.

SIMM1

SIMM2

SIMM3

SIMM4

DIMM1

DIMM2

Socket 7

FDD

IDE1

IDE2

ISA SLOT 4

ISA SLOT 2

ISA SLOT 3

ISA SLOT 1

PCI SLOT 4

PCI SLOT 3

PCI SLOT 2

PCI SLOT 1

BIOS

BATT

2032

JPF

JGS

JGL

JP2

INTEL

FW82371AB

INTEL

FW82439TX

JBAT JRMS2

JFAN

ATX

POWER CONNECTOR

KBC

JV1

LPT

COMA & COMB USB PS/2

JV3

JV4

JV5

ON DIP

134

156

JV6

JRMS1

JV3

JV4

JV6

JV5

Vcore

V I/O JV3~JV7

Single Voltage Dual Voltage

2-3

JV3

JV4

JV6

JV5

JV3

JV4

JV6

JV5

JV3

JV4

JV6

JV5

JV3

JV4

JV6

JV5

JV3

JV4

JV6

JV5

CHAPTER 2 HARDWARE INSTALLATION

2.1-4 CPU Speed and Voltage Setting: SW1 & JV3-JV7

To adjust the speed and voltage of the CPU, you must know the specifica-

tion of your CPU (always ask the vendor for CPU specificaton) then look at

Table2.1 (Intel®P54C/P55C-MMX),Table 2.2(Cyrix®6x86/M2) and

Table2.3 (AMD®5K86/K6)forpropersetting.

SW1 1 2 3 4 5 6

ON ON

OFF

Speed Setting

2-4

SIMM1

SIMM2

SIMM3

SIMM4

DIMM1

DIMM2

Socket 7

FDD

IDE1

IDE2

ISA SLOT 4

ISA SLOT 2

ISA SLOT 3

ISA SLOT 1

PCI SLOT 4

PCI SLOT 3

PCI SLOT 2

PCI SLOT 1

BIOS

BATT

2032

JPF

JGS

JGL

JP2

INTEL

FW82371AB

INTEL

FW82439TX

JBAT JRMS2

JFAN

ATX

POWER CONNECTOR

KBC

JV1

LPT

COMA & COMB USB PS/2

JV3

JV4

JV5

ON DIP

134

156

JV6

JRMS1

JV3

JV4

JV6

JV5

CHAPTER 2 HARDWARE INSTALLATION

Table 2.1 Intel® P54C PENTIUM CPU

P54C-90

P54C-100

P54C-120

P54C-133

P54C-150

P54C-166

P54C-200

3.38

3.52

3.38

3.52

ON DIP

123 456

OFF

ON DIP

123 456

OFF

ON DIP

123 456

OFF

ON DIP

123 456

OFF

ON DIP

123 456

OFF

CPU Type CPU SpeedCPU Voltage

SW1VI/O Vcore

ON DIP

123 456

OFF

ON DIP

123 456

OFF

2-5

JV3

JV4

JV5

JV6

JV3

JV4

JV5

JV6

JV3

JV4

JV5

JV6

JV3

JV4

JV5

JV6

JV3~JV7

ON DIP

123 456

OFF

ON DIP

123 456

OFF

ON DIP

123 456

OFF

P55C-166

P55C-200 3.3 2.8 JV3

JV4

JV5

JV6

P55C-233

Intel® P55C PENTIUM (MMX) CPU

Note: If you encounter a CPU with different Voltage, just go to page 2-3 and

look for the proper voltage settings.

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