MSI 955X Platinum, MS-7158 User Manual

955X Platinum Series

MS-7158 (v1.X) ATX Mainboard

G52-M7158X5

i

FCC-B Radio Frequency Interference Statement

This equipment has been tested and found to comply with the limits for a class B
digital device, pursuant to part
15 of the FCC rules. These limits
are designed to provide
reasonable protection against
harmful interference in a residential installation. This equipment generates, uses and
can radiate radio frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the measures listed
below.

=Reorient or relocate the receiving antenna.
=Increase the separation between the equipment and receiver.
=Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected.

=Consult the dealer or an experienced radio/television technician for help.

Notice 1

The changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.

Notice 2

Shielded interface cables and A.C. power cord, if any, must be used in order to
comply with the emission limits.

VOIR LA NOTICE D’INSTALLATION AVANT DE RACCORDER AU RESEAU.

Micro-Star International
MS-7158

This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation

ii

Copyright Notice

The material in this document is the intellectual property of MICRO-STAR
INTERNATIONAL. We take every care in the preparation of this document, but no

guarantee is given as to the correctness of its contents. Our products are under
continual improvement and we reserve the right to make changes without notice.

Trademarks

All trademarks are the properties of their respective owners.
AMD, Athlon™ 64 and Athlon™ FX are registered trademarks of AMD Corporation.

Intel® and Pentium® are registered trademarks of Intel Corporation.
PS/2 and OS®/2 are registered trademarks of International Business Machines
Corporation.
Microsoft is a registered trademark of Microsoft Corporation. Windows® 98/2000/NT/
XP are registered trademarks of Microsoft Corporation.
NVIDIA, the NVIDIA logo, DualNet, and nForce are registered trademarks or trade­marks of NVIDIA Corporation in the United States and/or other countries.
Netware® is a registered trademark of Novell, Inc.
Award® is a registered trademark of Phoenix Technologies Ltd.
AMI® is a registered trademark of American Megatrends Inc.
Kensington and MicroSaver are registered trademarks of the Kensington Technology
Group.
PCMCIA and CardBus are registered trademarks of the Personal Computer Memory
Card International Association.

Revision Revision History Date

V1.0 First release for PCB 1.X July 2005

with Intel 955X & ICH7R

V1.1 Update for PCB 1.X January 2006

with Intel 955X & ICH7R

iii

Technical Support

If a problem arises with your system and no solution can be obtained from the user’s
manual, please contact your place of purchase or local distributor. Alternatively,
please try the following help resources for further guidance.
† Visit the MSI homepage & FAQ site for technical guide, BIOS updates, driver

updates, and other information: http://www.msi.com.tw & http://www.msi.

com.tw/program/service/faq/faq/esc_faq_list.php

† Contact our technical staff at: [e-mail]

Safety Instructions

1. Always read the safety instructions carefully.

2. Keep this User’s Manual for future reference.

3. Keep this equipment away from humidity.

4. Lay this equipment on a reliable flat surface before setting it up.

5. The openings on the enclosure are for air convection hence protects the equip­ment from overheating. Do not cover the openings.

6. Make sure the voltage of the power source and adjust properly 110/220V be­fore connecting the equipment to the power inlet.

7. Place the power cord such a way that people can not step on it. Do not place
anything over the power cord.

8. Always Unplug the Power Cord before inserting any add-on card or module.

9. All cautions and warnings on the equipment should be noted.

10. Never pour any liquid into the opening that could damage or cause electrical
shock.

11. If any of the following situations arises, get the equipment checked by a service
personnel:

† The power cord or plug is damaged.
† Liquid has penetrated into the equipment.
† The equipment has been exposed to moisture.
† The equipment has not work well or you can not get it work according to

User’s Manual.

† The equipment has dropped and damaged.
† The equipment has obvious sign of breakage.

12. Do not leave this equipment in an environment unconditioned, storage
temperature above 600 C (1400F), it may damage the equipment.

CAUTION: Danger of explosion if battery is incorrectly replaced.

Replace only with the same or equivalent type recommended by the
manufacturer.

iv

WEEE Statement

v

vi

vii

CONTENTS

FCC-B Radio Frequency Interference Statement..........................................................ii

Copyright Notice..............................................................................................................iii

Revision History..............................................................................................................iii

Technical Support..........................................................................................................iv

Safety Instructions.........................................................................................................iv

WEEE Statement........................................................................................................v

Chapter 1. Getting Started....................................................................................1-1

Mainboard Specifications...................................................................................1-2

Mainboard Layout................................................................................................1-4

Packing Contents............................................................................................1-5

Chapter 2. Hardware Setup..................................................................................2-1

Quick Components Guide...................................................................................2-2

Central Processing Unit: CPU.............................................................................2-3

Introduction to LGA 775 CPU......................................................................2-3

CPU & Cooler Installation.............................................................................2-4

Memory.................................................................................................................2-7

Introduction to DDR2 SDRAM.....................................................................2-7

Memory Module Population Rules...............................................................2-8

Installing DDR2 Modules..............................................................................2-8

Power Supply......................................................................................................2-9

ATX 24-Pin Power Connector: ATX1.........................................................2-9

ATX 12V Power Connector: JPW1/JPWR1...............................................2-9

Back Panel.........................................................................................................2-10

Mouse/Keyboard Connector....................................................................2-10

IEEE 1394 Port............................................................................................2-10

Serial Port Connector.................................................................................2-11

USB Connectors.........................................................................................2-11

LAN (RJ-45) Jack......................................................................................2-12

Audio Port Connectors..............................................................................2-12

Parallel Port Connector: LPT1...................................................................2-13

Connectors........................................................................................................2-14

Floppy Disk Drive Connector: FDD1........................................................2-14

Fan Power Connectors: CPUFAN1/SYSFAN1/NBFAN1.........................2-14

Hard Disk Connectors: IDE1, IDE2 & IDE3 (IDE 2 & IDE3 are optional)..2-15

Serial ATA Connectors: SATA1~SATA6...................................................2-16

Front Panel Connectors: JFP1 & JFP2.....................................................2-17

viii

CD-In Connector: JCD1.............................................................................2-18

Front Panel Audio Connector: JAUD1......................................................2-18

FWH/LPC Debugging Pin Header: JLPC1.................................................2-19

Front USB Connectors: JUSB1 & JUSB2.................................................2-19

IEEE 1394 Connectors: J1394_2, J1394_3 (Optional)............................2-20

IrDA Infrared Module Header: JIR1...........................................................2-20

D-Bracket™ 2 Connector: JLED1.............................................................2-21

Button.................................................................................................................2-24

Clear CMOS Button: SW1..........................................................................2-24

Slots...................................................................................................................2-25

PCI Express Slots (optional).....................................................................2-25

PCI (Peripheral Component Interconnect) Slots......................................2-26

PCI Interrupt Request Routing...................................................................2-26

Chapter 3. BIOS Setup............................................................................................3-1

Entering Setup.....................................................................................................3-2

Selecting the First Boot Device..................................................................3-2

Control Keys................................................................................................3-3

Getting Help..................................................................................................3-3

The Main Menu.....................................................................................................3-4

Standard CMOS Features...................................................................................3-6

Advanced BIOS Features...................................................................................3-8

Advanced Chipset Features............................................................................3-12

Integrated Peripherals.......................................................................................3-13

Power Management Setup...............................................................................3-18

PNP/PCI Configurations.....................................................................................3-21

H/W Monitor........................................................................................................3-23

Cell Menu............................................................................................................3-24

Load Fail-Safe/Optimized Defaults..................................................................3-28

BIOS Setting Password....................................................................................3-29

Chapter 4. Introduction to DigiCell.....................................................................4-1

Main......................................................................................................................4-2

Introduction:.................................................................................................4-2

H/W Diagnostic....................................................................................................4-4

Communication.....................................................................................................4-5

Software Access Point.......................................................................................4-6

Terminology..................................................................................................4-6

Access Point Mode.....................................................................................4-7

WLAN Card Mode........................................................................................4-8

ix

Live Update..........................................................................................................4-9

MEGA STICK.......................................................................................................4-10

Basic Function...........................................................................................4-10

Non-Unicode programs supported...........................................................4-12

Core Center (for Pentium 4 CPU).....................................................................4-14

Left-wing: Current system status............................................................4-15

Right-wing: PC hardware status during real time operation.................4-15

Power on Agent.................................................................................................4-16

Power On...................................................................................................4-16

Power Off / Restart...................................................................................4-17

Start With....................................................................................................4-17

Auto Login..................................................................................................4-18

Chapter 5. Introduction to Intel ICH7R SATA RAID..........................................5-1

BIOS Configuration..............................................................................................5-2

Using the Intel Matrix Stroage Manager Option ROM...............................5-2

Installing Software..............................................................................................5-8

Install Driver in Windows XP / 2000..........................................................5-8

Installation of Intel Matrix Stroage Console...............................................5-9

RAID Migration Instructions..............................................................................5-14

Create RAID Volume from Existing Disk...................................................5-15

Chapter 6. Introduction to VIA VT6410 IDE RAID.............................................6-1

Introduction..........................................................................................................6-2

RAID Basics.................................................................................................6-2

RAID 0 (Striping)..........................................................................................6-2

RAID 1 (Mirroring)........................................................................................6-3

RAID 0+1 (Striping/Mirroring)......................................................................6-3

JBOD (Spanning).....................................................................................6-3

BIOS Configuration..............................................................................................6-4

Create Disk Array........................................................................................6-5

Delete Disk Array.........................................................................................6-8

Create and Delete Spare Hard Drive.........................................................6-9

Select Boot Array......................................................................................6-10

View Serial Number of Hard Drive...........................................................6-10

Duplicate Critical RAID 1 Array..................................................................6-11

Rebuild Broken RAID 1/0+1 Array............................................................6-12

Installing Software............................................................................................6-14

Install Driver in Windows XP/2000...........................................................6-14

x

Installation of VIA IDE RAID Utility.............................................................6-15

Using VIA RAID Tool..........................................................................................6-18

Chapter 7.Introduction to Realtek ALC882M...................................................7-1

Installing the Realtek HD Audio Driver................................................................7-2

Installation for Windows 2000/XP..............................................................7-2

Software Configuration......................................................................................7-4

Sound Effect................................................................................................7-5

Mixer.............................................................................................................7-8

AudioIO.......................................................................................................7-12

Microphone................................................................................................7-17

Bass Management setting.........................................................................7-18

Dolby...........................................................................................................7-19

3D Audio Demo...........................................................................................7-20

Information..................................................................................................7-21

Using 2-, 4-, 6- & 8- Channel Audio Function.................................................7-22

Chapter 8. Silicon Image SATARAID Introduction...........................................8-1

Introduction........................................................................................... ........8-2

RAID - Redundant Array of Independent Disks........................................8-2

RAID 0 (Striping)..........................................................................................8-2

RAID 1 (Mirroring)........................................................................................8-2

Concatenation..............................................................................................8-2

Creating and Deleting RAID sets with BIOS Utility............................................8-3

Main Menu....................................................................................................8-3

Creating RAID Groups.................................................................................8-5

Creating Spare Drive...................................................................................8-6

Creating Concatenation...............................................................................8-7

Deleting RAID Groups, Spare Drive, and Concatenation.........................8-7

Rebuild RAID 1 Set......................................................................................8-8

Resolving Conflicts......................................................................................8-8

Low Level Formatting................................................................................8-11

Logical Drive Information...........................................................................8-11

Reserved Drive and Setting Size for RAID Set, Spare Drive, or Concatena-

tion..............................................................................................................8-12

Installing the RAID Driver (For bootable RAID array).....................................8-13

Install Driver in Windows XP / 2000.........................................................8-13

xi

Getting Started

Chapter 1. Getting
Started

Getting Started

Thank you for choosing the 955X Platinum Series (MS-

7158) v1.x ATX mainboard. The 955X Platinum Series mainboard
is based on Intel® 955X and Intel® ICH7R chipset for optimal system
efficiency. Designed to fit the advanced Intel® Pemtium 4 Extreme

Edition, Pentium 4, Pentium D, Pentium XE and Celeron D

processors in LGA775 processor, the 955X Platinum Series
mainboard delivers a high performance and professional desktop
platform solution.

1-1

MS-7158 ATX Mainboard

Mainboard Specifications

CPU

† Supports LGA-775 for Intel® Pemtium 4 Extreme Edition, Pentium 4, Pentium D and

Pentium XE processors.

† Supports Intel 05B and 05A processors
† Supports 3/4 pin CPU Fan Pin-Header with Fan Speed Control.
† Supports FSB 1066/ 800 MHz
† Supports EIST Technology
† Supports Hyper-Threading (HT) Technology
† Supports Intel Dual Core Technology to 800 MHz and up

Chipset

† Intel® 955X chipset

- Supports FSB 800/ 1066MHz.

- Supports PCI Express x16 graphics interface.

- Supports dual channel DDRII 533/667

† Intel® ICH7R chipset

- Hi-Speed USB (USB2.0) controller, 480Mb/sec, up to 8 ports.

- 4 SATAII ports with transfer rate up to 3Gb/s.

- 1 channel Ultra ATA 100 bus Master IDE controller.

- PCI Master v2.3, I/O APIC.

- ACPI 2.0 Compliant.

- Serial ATA RAID 0, RAID 1 and Matrix RAID.

- Integrated AHCI controller.

Main Memory

† Supports four unbuffered DIMM of 1.8 Volt DDRII SDRAM
† Supports up to 8GB memory size.
† Supports Dual channel DDRII memory architecture.
† Supports DDRII 533/667 memory interface.

(For the updated supporting memory modules, please visit http://www.msi.com.tw/
program/products/mainboard/mbd/pro_mbd_trp_list.php.)

Slots

† One PCI Express x16 slot.
† Two PCI Express x1 slots.
† Three 32-bit Master PCI Bus slots, includes one orange slot which supports 2

master for MSI special PCI function card (ex. wireless LAN and bluetooth combo
card.).

On-Board IDE

† Ultra DMA 66/100 IDE controllers integrated in ICH7R.

- Supports PIO, Bus Master operation modes.

- Can connect up to two Ultra ATA drives.

† SATAII controller integrated in ICH7R

- Up to 300MB/sec data transfer rate.

- Can connect up to four SATA devices.

- Supports AHCI controller with SATA RAID 0, RAID 1 and Matrix RAID (ICH7R).

1-2

Getting Started

† Ultra DMA 66/100/133 IDE controllers integrated in VT6410.

- Supports PIO, Bus Master operation modes.

- Can connect up to four Ultra ATA drives.

- Supports RAID 0, RAID 1, RAID 0+1 and JBOD. (IDE2, IDE3)

On-Board Peripherals

† On-Board Peripherals include:

- 1 floppy port supports 1 FDD with 360K, 720K, 1.2M, 1.44M and 2.88Mbytes

- 1 serial port

- 1 parallel port supports SPP/EPP/ECP mode

- 1 Audio connector (5-in-1), coaxial/ fiber SPDIF out

- 1 D-Bracket 2 pinheader

- 3 IEEE 1394 (Rear *1 / Front *2)

- 8 USB ports (Rear * 4/ Front * 4)

- 2 RJ-45 LAN jack

- 1 IrDA pinheader

Silicon Image’s SATARAID (optional)

† Up to 300MB/sec data transfer rate.
† RAID 0 or 1 and multiple RAID groups are supported
† Supports up 2 SATA devices

Dual Gigabit LAN

† Supports dual LAN jacks

- 1st PCI Express LAN supports 10/ 100/ 1000 Mb/s Fast Ethernet by Intel PC82573

- 2nd PCI Express LAN supports 10/ 100/ 1000 Mb/s Fasr Ethernet by Boardcom
BCM5789.

IEEE 1394 (optional)

† Supports two IEEE1394 onboard pinheader. Transfer rate is up to 400 Mbps.
† Controlled by VIA VT6306 chip.

Audio

† High Definition link controller integrated in Intel® ICH7R chip.
† Audio codec Realtek ALC882M

- Compliant with Azalia 1.0 Spec.

- Supports Dolby Master Studio.

BIOS

† The mainboard BIOS provides “Plug & Play” BIOS which detects the peripheral

devices and expansion cards of the board automatically.

† The mainboard provides a Desktop Management Interface (DMI) function which

records your mainboard specifications.

Mounting and Dimension

† ATX Form Factor: 30.4 cm x 24.5 cm
† 9 mounting holes

1-3

MS-7158 ATX Mainboard

SW1

PCI1

PCI_E2

PCI_E1

PCI_E3

JFP1

JFP2

JLED1

+

BATT

J1394_2

J1394_1

DIMM4DIMM2DIMM3DIMM1SYSFAN1WinbondW83627THFIDE1PWRFAN1FDD1JLPC1ATX1

Top : mouse
Bottom: keyboard

Top : Parallel Port
Bottom:

COM A
1394 Port
SPDIF

Top: LAN Jack
Bottom: USB ports

CPUFAN1

Top: LAN Jack
Bottom: USB ports

JPW1

Mainboard Layout

NBFAN1

Intel

955X

T:

Line-In

M:

Line-Out

B:

Mic

T:RS-Out
M:CS-Out
B:SPDIFOut

Boardcom

LAN chip

Intel

PC82573E

JPWR1

BIOS

JCD1

Codec

Intel

ICH7R

JAUD1

PCI2

VIA

VT6306

Silicon
Image

chip

VIA

VT6410

PCI3

SATA5

JUSB2

SATA6

JUSB1

955X Platinum Series (MS-7158) v1.x ATX Mainboard

JIR1

SATA3SATA2 SATA4

S A TA 1

IDE2

IDE3

1-4

Packing Contents

Getting Started

MSI motherboard

SATA Cable (Optional)

Round Cable of

Floppy Disk

MSI Driver/Utility CD

Power Cable (Optional)

1394 Cable

(Optional)

SATA RAID Driver

Diskette

D-Bracket 2

(Optional)

Round Cable of

IDE Devices

User’s Guide

* The pictures are for reference only and may vary from the packing contents of the
product you purchased.

Back IO Shield

External SATA 2 Cable

(Optional)

1-5

Hardware Setup

Chapter 2. Hardware Setup

Hardware Setup

This chapter tells you how to install the CPU, memory modules,
and expansion cards, as well as how to setup the jumpers on the
mainboard. Also, it provides the instructions on connecting the periph­eral devices, such as the mouse, keyboard, etc.

While doing the installation, be careful in holding the compo­nents and follow the installation procedures.

2-1

MS-7158 ATX Mainboard

Quick Components Guide

Back Panel
I/O, p.2-10

JPWR1,

p.2-9

PCI_E x 16,

p.2-25

JCD1, p.2-18

PCI_ E x 1,

JAUD1, p.2-18

p.2-25

JPW1, p.2-9

NBFAN1,

p.2-14

CPU,

p.2-3

CPUFAN1,

p.2-14

SYSFAN1,

p.2-14

DDR DIMMs, p.2-7

PWRFAN1, p.2-14

JLPC1, p.2-19

ATX1, p.2-9

FDD1, p.2-14

IDE1, p.2-15

SW1, p.2-24

JIR1, p.2-20

SATA1~SATA4,

p.2-16

PCI Slots 1~3,

p.2-26

2-2

J1394_1, J1394_2,

p.2-20

SATA5/6

p.2-16

IDE2, IDE3,

p.2-15

JLED1, p.2-21

JFP2, p.2-17
JFP1, p.2-17

JUSB1, JUSB2, p.2-19

Hardware Setup

Central Processing Unit: CPU

The mainboard supports Intel® Pemtium 4 Extreme Edition, Pentium 4, Pentium D,
and Pentium XE processors. The mainboard uses a CPU socket called LGA775. When
you are installing the CPU, make sure to install the cooler to prevent
overheating. If you do not have the CPU cooler, contact your dealer to purchase
and install them before turning on the computer.

For the latest information about CPU, please visit http://www.msi.com.tw/

program/products/mainboard/mbd/pro_mbd_cpu_support.php.

MSI Reminds You...

Overheating

Overheating will seriously damage the CPU and system, always 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 supply 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 tolerate such abnormal setting,
while doing overclocking. Any attempt to operate beyond product speci­fications is not recommended. We do not guarantee the damages

or risks caused by inadequate operation or beyond product
specifications.

Introduction to LGA 775 CPU

The pin-pad side of LGA 775
CPU.

Alignment Key Alignment Key

The surface of LGA 775 CPU.
Remember to apply some sili­cone heat transfer compound on
it for better heat dispersion.

Yellow triangle is the Pin 1 indicator

Yellow triangle is the Pin 1 indicator

2-3

MS-7158 ATX Mainboard

CPU & Cooler Installation

When you are installing the CPU, make sure the CPU has a cooler at-

tached on the top to prevent overheating. If you do not have the cooler, contact

your dealer to purchase and install them before turning on the computer. Meanwhile,
do not forget to apply some silicon heat transfer compound on CPU before installing
the heat sink/cooler fan for better heat dispersion.

Follow the steps below to install the CPU & cooler correctly. Wrong installation

will cause the damage of your CPU & mainboard.

1.The CPU has a land side cover on the

bottom to protect the CPU contact from
damage. Rotate it to make the pin 1
indicator (yellow triangle) in the right­bottom corner.

land side cover

3.Use 2 hands to remove the land side

cover (if any). Please note not to touch
the pins.

2.Take out the accompanying CPU Clip
and rotate it for the same direction
as the CPU (Pin 1 indicator is in the
left-bottom corner).

4.Align the two pin 1 indicators (the
triangles on the CPU & the CPU Clip),
and use the CPU Clip to clip the CPU
up, pressing the clips on both sides
to the center, as the arrows shown.

MSI Reminds You...

1.Confirm if your CPU cooler is firmly installed before turning on your
system.

2.Do not touch the CPU socket pins to avoid damaging.

3. The availability of the CPU land side cover depends on your CPU
packing.

2-4

Hardware Setup

5.The CPU socket has a plastic cap on
it to protect the contact from damage.
Before you have installed the CPU,
always cover it to protect the socket
pin.

7.Lift the load lever up and open the
load plate.

6.Remove the cap from lever hinge side
(as the arrow shows). The pins of
socket reveal.

8.Correctly align the triangle of CPU Clip
with the CPU chamfer, and the square
on the CPU Clip to the hook of the
socket.

9.Use your thumb and the middle fin­gers to push the clips to release the
CPU, then press down the CPU with
your index finger to allow the whole
module to be installed onto the CPU
socket.

10.The CPU is installed well on the CPU
socket.

2-5

MS-7158 ATX Mainboard

11.Visually inspect if the CPU is seated
well into the socket, then remove the
CPU Clip with 2 fingers. Then cover
the load plate back to the place.

13. Align the holes on the mainboard with

the cooler. Push down the cooler until
its four clips get wedged into the
holes of the mainboard.

12. Press down the load lever lightly
onto the load plate, and then secure
the lever with the hook under reten­tion tab.

14.Press the four hooks down to fasten

the cooler. Then rotate the locking
switch (refer to the correct direction
marked on it) to lock the hooks.

locking

switch

15.Turn over the mainboard to confirm
that the clip-ends are correctly
inserted.

MSI Reminds You...

1.Check the information in H/W Monitor in BIOS (Chapter 3) for the
CPU temperature.

2. Whenever CPU is not installed, always protect your CPU socket pin
with the plastic cap covered (shown in step 5) to avoid damaging.

3. Please note that the mating/unmating durability of the CPU is 20 cycles.
Therefore we suggest you do not plug/unplug the CPU too often.

2-6

Note:If you want to uninstall the CPU,

align the 4 points (see Setp 8 for
details) again and push the clip to
lift up the CPU.

Hardware Setup

Memory

The mainboard provides 4 slots for 240-pin DDRII DIMM, which supports the

memory size up to 8 GB.

Since DDR2 modules are not interchangeable with DDR and the DDR2 stand­ard is not backward compatible, you should always install DDR2 memory module in
the DDR2 slot (DIMM1~DIMM4). Otherwise, you are not able to boot up your system
and your mainboard might be damaged.

For the updated supporting memory modules, please visit http://www.msi.
com.tw/program/products/mainboard/mbd/pro_mbd_trp_list.php

DIMM1~DIMM4
(from left to right)

Channel A (DIMM1, DIMM2): Green
Channel B (DIMM3, DIMM4): Orange

Introduction to DDR2 SDRAM

DDR2 is a new technology of memory module, and its speed is the top limit of
current DDR technology. DDR2 uses a 1.8V supply for core and I/O voltage, com­pared to 2.5V for DDR, and requires 28% less power than DDR chips. DDR2 truly is
the future of memory, but will require some changes as the technology is not back­wardly compatible and only motherboards specifically designed for DDR2 memory
will be able to support these chips.

DDR2 incorporates new features at the chip level that give it better signal
integrity, thereby enabling higher clock speeds.

DDR2 modules have 240 pins, versus 184 pins on a DDR module, and the
length of DDR2 module is 5.25”. DDR2 modules have smaller and tighter spaced pins.
The height of DDR2 modules varies, but they will typically be less than 1.3” in height.

Memory Module Population Rules

Install at least one DIMM module on the slots. Each DIMM slot supports up to a
maximum size of 1GB. Users can install either single- or double-sided modules to
meet their own needs. Please note that each DIMM can work respectively for

single-channel DDR2, while both channels (in different color) populated
with same amount of memory size will work as dual-channel DDRII.

2-7

MS-7158 ATX Mainboard

GREEN

DIMM1 (Ch A) DIMM2 (Ch A) DIMM3 (Ch B) DIMM4 (Ch B) System Density
256MB~2GB 256MB~2GB 512B~4GB

256MB~2GB 256MB~2GB 512MB~4GB

256MB~2GB 256MB~2GB 256MB~2GB 256MB~2GB 1GB~8GB

MSI Reminds You...

-Dual-channel DDR2 works ONLY in the 5 combinations listed in
the table shown in the previous page.

-Please select the identical memory modules to install on the dual
channel, and DO NOT install three memory modules on three
DIMMs, or it may cause some failure.

-Always insert the memory modules into the GREEN slots first, and
it is strongly recommended not to insert the memory modules into
the ORANGE slots while the GREEN slots are left empty.

-Due to the South Bridge resource deployment, the system density
will only be detected up to 7+GB (not full 8GB) when each DIMM is
installed with an 2GB memory module.

GREEN

256MB~2GB 256MB~2GB 512MB~4GB

256MB~2GB 256MB~2GB 512MB~4GB

ORANGE

ORANGE

Installing DDR2 Modules

1. The DDR2 DIMM has only one notch on the center of module. The module 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 inserted in the socket.

3. The plastic clip at each side of the DIMM slot will automatically close.

Volt

MSI Reminds You...

You can barely see the golden finger if the module is properly in­serted in the socket.

Notch

2-8

Hardware Setup

Power Supply

The mainboard supports ATX power supply for the power system. Before
inserting the power supply connector, always make sure that all components are
installed properly to ensure that no damage will be caused.

ATX 24-Pin Power Connector: ATX1

This connector allows you to connect an ATX 24-pin power supply. To
connect the ATX 24-pin 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 Definition

13

ATX1

24

1

12

PIN SIGNAL

1 +3.3V
2 +3.3V
3 GND
4 +5V
5 GND
6 +5V
7 GND
8 PWR OK
9 5VSB
10 +12V
11 +12V
12 NC

PIN SIGNAL

13 +3.3V
14 -12V
15 GND
16 PS-ON#
17 GND
18 GND
19 GND
20 Res
21 +5V
22 +5V
23 +5V
24 GND

ATX 12V Power Connector: JPW1 & JPWR1

These 12V power connectors are used to provide power to the CPU.

4

185

JPW1

MSI Reminds You...

1. These three connectors connect to the ATX power supply and have to
work together to ensure stable operation of the mainboard.

2. Power supply of 400 watts (and above) is highly recommended for
system stability.

3. ATX 12V power connection should be greater than 18A.

JPW1 Pin Definition

PINSIGNAL

1 GND
2 GND
3 GND
4 GND

PINSIGNAL

5 +12V
6 +12V
7 +12V
8 +12V

4 2 13

JPWR1

JPWR1 Pin Definition

PIN SIGNAL

1 5V
2 GND
3 GND
4 12V

2-9

MS-7158 ATX Mainboard

Back Panel

The back panel provides the following connectors:

Parallel

Mouse

LAN

LAN

L-In

RS-Out

Keyboard

COM Port

1394 Port

SPDIF
Out
(Coaxial)

USB Ports

L-Out

Mic

CS-Out
SPDIF Out
(Optical)

Mouse/Keyboard Connector

The mainboard provides a standard PS/2® mouse/keyboard mini DIN connector
for attaching a PS/2® mouse/keyboard. You can plug a PS/2® mouse/keyboard directly
into this connector. The connector location and pin assignments are as follows:

6

4

2

5

3

1

PS/2 Mouse / Keyboard

(6-pin Female)

PIN SIGNAL DESCRIPTION

1 Mouse/Keyboard Data Mouse/Keyboard data
2 NC No connection
3 GND Ground
4 VCC +5V
5 Mouse/Keyboard Clock Mouse/Keyboard clock
6 NC No connection

Pin Definition

IEEE 1394 Port

There is one 1394 port on the back panel providing the connection for 1394
devices.

2-10

1394 port

Hardware Setup

Serial Port Connector

The mainboard offers one 9-pin male DIN connector as the serial port. The port
is a 16550A high speed communication port that sends/receives 16 bytes FIFOs. You
can attach a serial mouse or other serial devices directly to the connector.

Pin Definition

1 2 3 4 5

6 7 8 9

9-Pin Male DIN Connector

PIN SIGNAL DESCRIPTION

1 DCD Data Carry Detect
2 SIN Serial In or Receive Data
3 SOUT Serial Out or Transmit Data
4 DTR Data Terminal Ready)
5 GND Ground
6 DSR Data Set Ready
7 RTS Request To Send
8 CTS Clear To Send
9 RI Ring Indicate

USB Connectors

The mainboard provides an OHCI (Open Host Controller Interface) Universal
Serial Bus root for attaching USB devices such as keyboard, mouse or other USB­compatible devices. You can plug the USB device directly into the connector.

USB Port Description

PIN SIGNAL DESCRIPTION

1 VCC +5V

1 2 3 4

5 6 7 8

USB Ports

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

2-11

MS-7158 ATX Mainboard

LAN (RJ-45) Jack

The mainboard provides two standard RJ-45 jacks for connection to Local
Area Network (LAN). Giga-bit LAN enables data to be transferred at 1000, 100 or
10Mbps. You can connect a network cable to either LAN jack.

Giga-bit LAN Pin Definition

PIN SIGNAL DESCRIPTION

1 D0P Differential Pair 0+

8 1

RJ-45 Giga-bit LAN Jack

2 D0N Differential Pair 0­ 3 D1P Differential Pair 1+
4 D2P Differential Pair 2+
5 D2N Differential Pair 2­ 6 D1N Differential Pair 1­ 7 D3P Differential Pair 3+
8 D3N Differential Pair 3-

Audio Port Connectors

The left 3 audio jacks are for 2-channel mode for stereo speaker output: Line
Out is a connector for Speakers or Headphones. Line In is used for external CD

player, Tape player, or other audio devices. Mic is a connector for microphones.

However, there is an advanced audio application provided by ALC882M to
offer support for 7.1-channel+2-channel audio operation.

S/PDIF Out-Coaxial

Line In

Line Out

MIC

Rear Speaker Out

(in 7.1CH / 5.1CH)

Center/Subwoofer

Speaker Out

( in 7.1CH / 5.1CH)
S/PDIF Out-Optical

(in 7.1CH / 5.1CH)

2-12

Hardware Setup

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

25

14

Pin Definition

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

2-13

MS-7158 ATX Mainboard

Connectors

The mainboard provides connectors to connect to FDD, IDE HDD, case, LAN,

USB Ports and CPU/System FAN.

Floppy Disk Drive Connector: FDD1

The mainboard provides a standard floppy disk drive connector that supports

360K, 720K, 1.2M, 1.44M and 2.88M floppy disk types.

FDD1

Fan Power Connectors: CPUFAN1/SYSFAN1/NBFAN1

The CPUFAN1 (processor fan), SYSFAN1 (system fan) and NBFAN1
(NorthBridge Chipset fan) support system cooling fan with +12V. It supports four/
three-pin head connector. When connecting the wire to the connectors, 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 the mainboard has a System
Hardware Monitor chipset on-board, you must use a specially designed fan with
speed sensor to take advantage of the CPU fan control.

SENSOR

MSI Reminds You...

1.Always consult the vendors for proper CPU cooling fan.

2.CPUFAN1 supports fan control. CPU fan with 3 or 4 pins are both

3.Please refer to the recommended CPU fans at Intel® official

+12V

CPUFAN1

available.
website.

GND

GNDControl

+12V
Sensor

SYSFAN1

GND
+12V

NC

NBFAN1

2-14