MSI 945P Neo User Manual

945P Series

MS-7176 (v1.X ATX Mainboard)

G52-M7176X5

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.
=Connec 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-7176

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.

Manual Rev: 1.0

Release Date: June 2005

Revision History

Revision Revision History Date

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

with Intel 945P & ICH7/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 equip-

ment 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

English.....................................................................................................................E-1-1

Chapter 1. Getting Started.................................................................................E-1-3

Mainboard Specifications................................................................................E-1-4

Mainboard Layout.............................................................................................E-1-6

Packing Contents..............................................................................................E-1-7

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

Hardware Setup....................................................................................................E-2-1

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

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

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

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

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

ATX 12V Power Connector: JPW1.........................................................E-2-9

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

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

Serial Port Connector: COM Port...................................................................E-2-11

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

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

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

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

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

Fan Power Connectors: CPUFAN1/NBFAN1/SYSFAN1/PWRFAN1..E-2-14

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

Hard Disk Connector: IDE1, IDE2, IDE3................................................E-2-15

Serial ATA Connectors controlled by Intel ICH7: SATA1~SATA4.......E-2-16

CD-In Connector: JCD1.........................................................................E-2-17

Front Panel Connectors: JFP1 / JFP2..................................................E-2-17

Front USB Connectors: JUSB1 / JUSB2......................................................E-2-18

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

IEEE 1394 Connector: J1394_1/J1394_2 (Optional)...................................E-2-19

D-Bracket™ 2 Connector: JDB1..........................................................E-2-20

FWH/LPC Debugging Pin Header: JLPC1.............................................E-2-22

Jumpers..........................................................................................................E-2-23

Chassis Intrusion Switch Connector: JCI1..........................................E-2-23

Clear CMOS Jumper: JBAT1.................................................................E-2-23

Slots................................................................................................................E-2-24

PCI Express Slots (optional).................................................................E-2-24

viii

PCI (Peripheral Component Interconnect) Slots..................................E-2-25

PCI Interrupt Request Routing...............................................................E-2-25

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

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

The Main Menu.................................................................................................E-3-3

Cell Menu..........................................................................................................E-3-5

Load Fail-Safe/Optimized Defaults................................................................E-3-8

BIOS Setting Password..................................................................................E-3-9

Français......................................................................................................................F-1

Spécificités..........................................................................................................F-5

Schéma................................................................................................................F-7

Installation du CPU et du ventilateur...........................................................F-9

Mémoire..............................................................................................................F-13

Introduction ŕ la DDR2 SDRAM.........................................................................F-13

Rčgles concernant les modules de mémoire..........................................F-13

Installation des modules DDR2.................................................................F-13

Panneau Arričre................................................................................................F-15

Setup du BIOS...................................................................................................F-15

Control Keys..............................................................................................F-15

Aide.............................................................................................................F-15

Menu Principal............................................................................................F-15

Paramčtres par Défauts............................................................................F-15

Menu Principal....................................................................................................F-15

Cell Menu............................................................................................................F-16

Deutsch......................................................................................................................G-1

Spezifikationen des Mainboards........................................................................G-5

CPU.......................................................................................................................G-5

Mainboard Layout................................................................................................G-7

CPU & Kühler Einbau...................................................................................G-9

Speicher.............................................................................................................G-13

Einführung zu DDR2 SDRAM....................................................................G-13

DIMM Speicherzusammensetzung...........................................................G-13

Einbau von DDR2 Modulen........................................................................G-13

Hinteres Anschlusspaneel...............................................................................G-15

Aufruf des BIOS Setup.....................................................................................G-15

Steuertasten..............................................................................................G-15

Default Settings.........................................................................................G-15

Hauptmenü .........................................................................................................G-15

Cell Menu............................................................................................................G-16

ix

945P Series

User’s Guide

English

Chapter 1. Getting
Started

Getting Started

Thank you for choosing the 945P Series (MS-7176) v1.x
ATX mainboard. The 945P Series mainboard is based on Intel
945P and Intel® ICH7/ICH7R chipset for optimal system efficiency.
Designed to fit the advanced Intel® Pentium 4 Prescott LGA775
processor, the 945P Series mainboard delivers a high performance
and professional desktop platform solution.

®

MS-7176 ATX Mainboard

Mainboard Specifications

CPU

† Supports Intel

®

Pentium 4/ Celeron D Prescott LGA775 processors (DualCore

and CederMill) in LGA775 package.

† Supports 2004 Performance FMB CPU VR Design.
† Supports 3/4 pin CPU Fan Pin-Header with Fan Speed Control.
† Supports up to Pentium 4 3XX, 5XX, 6XX & P4EE (Intel Pentium 4 Processor

with HT Technology Extreme Edition).
(For the latest information about CPU, please visit http://www.msi.com.tw/program/
products/mainboard/mbd/pro_mbd_cpu_support.php)

Chipset

† Intel

®

945P chipset

- Supports FSB 533/ 800/1066MHz.

- Supports PCI Express x16 graphics interface.

- Supports DDR2 400/533/667/800

† Intel

®

ICH7/ICH7R chipset (optional)

- 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, RAID 10, RAID 5 and Matrix RAID. (for ICH7R)

- Integrated AHCI controller.

Main Memory

† Supports four unbuffered DIMM of 1.8 Volt DDR2 SDRAM
† Supports up to 4GB memory size.
† Supports Dual channel DDR memory architecture.
† Supports DDR2 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 v2.3 Master PCI bus slots (support 3.3v/5v PCI bus interface).

On-Board IDE

† One Ultra DMA 66/100 IDE controllers integrated in ICH7/ICH7R.

- Supports PIO, Bus Master operation modes.

- Can connect up to Six Ultra ATA drives.

E-1-4

Getting Started

† SATAII controller integrated in ICH7/ICH7R.

- Up to 300MB/sec transfer speed.

- Can connect up to four SATAII devices.

- Serial ATA RAID 0, RAID 1, RAID 10, RAID 5 and Matrix RAID. (for ICH7R).

† VIA 6410, chipest. (optional)

- 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 Line-In / Line-Out / MIC-In / Rear Speaker Out / Center-Subwoofer Speaker

Out/ SPDIF-Out / Side Speaker Out

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

- 1 RJ-45 LAN jack

LAN

† Intel 82573V

- Supports 10 / 100 / 1000 Mb/s.

- Compliane with PCI 2.2.

- Supports ACPI Power Management.

1394(optional)

† Supports two IEEE1394 onboard pinheader. Transfer rate is up to 400 Mbps.
† Controlled by VIA VT6307 chip.

Audio

† High Definition link controller integrated in Intel

®

ICH7R chip.

† 7.1 + 2 channels audio codec Realtek ALC882.

- Compliant with Azalia 1.0 Spec.

† Supports DTS effect.

BIOS

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

eral 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: 29.5 cm x 24.5 cm
† 9 mounting holes

E-1-5

MS-7176 ATX Mainboard

PCI1

PCI_E3

PCI_E2

PCI_E1

BIO

S

Intel

Intel

ICH7/ ICH7R

ATX

1

I

DE1FDD1

CPUFAN1

Winbond

W83627THG

BATT

T

A3SAT

A

4

T

A

1

IDE2(optional)

J1394_1(optional)

J1394_2(optional)

JLPC1

JPW1

Top : mouse
Bottom:
keyboard

Top :
Parallel Port

Bottom:
COM port

USB
ports

Top: LAN Jack
Bottom: USB ports

T:

Line-In

M:

Line-Out

B:

Mic

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

PWRFAN1

2
X
T
A

NBFAN1

Mainboard Layout

945P

JCI1

1

3

2
M
M

I
D

4

M

M

M

M

M

M

I

I

I

D

D

D

E-1-6

JCD1

+

PCI2

PCI3

1
D
U
A

J

SYSFAN1

JUSB1

945P Series(MS-7176) v1.x ATX Mainboard

JUSB2

A
S

IDE3(optional)

JDB1 JFP1 JFP2

2
A
T
A
S

A
S

1
T
A
B
J

Packing Contents

Getting Started

MSI motherboard

Power Cable

User’ s Guide

MSI Driver/Utility CD

D-Bracket 2

(Optional)

Back IO Shield

SATA Cable *2

Standard Cable for

IDE Devices

Standard Cable for

Floppy Disk

IEEE1394-Bracket

(Optional)

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

E-1-7

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.

MS-7176 ATX Mainboard

Quick Components Guide

E-2-2

Hardware Setup

Central Processing Unit: CPU

The mainboard supports Intel® Pentium 4 Prescott processor. 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

Yellow triangle is the Pin 1 indicator

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

E-2-3

MS-7176 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.

E-2-4

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.

Hardware Setup

5.The CPU 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.

E-2-5

MS-7176 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 onto the package.

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.

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

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

Note:If you want to uninstall the CPU,

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

E-2-6

MSI Reminds You...

1.Check the information in PC Health Status of 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 Figure 1) 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.

Hardware Setup

Memory

The mainboard provides 4 slots for 240-pin DDR2 DIMM, which supports the

memory size up to 4GB.

Since DDR2 modules are not interchangeable with DDR1 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 (Green) to right(Orange))

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 DDR1 technology. DDR2 uses a 1.8V supply for core and I/O voltage, com­pared to 2.5V for DDR1, and requires 28% less power than DDR1 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 DDR1 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 DDR, while both channels (in different color) populated
with same amount of memory size will work as dual-channel DDR.

E-2-7

MS-7176 ATX Mainboard

GREEN

DIMM1 (Ch A) DIMM2 (Ch A) DIMM3 (Ch B) DIMM4 (Ch B) System Density

256MB~1GB 256MB~1GB 512B~2GB

256MB~1GB 256MB~4GB 512MB~2GB

256MB~1GB 256MB~1GB 256MB~1GB 256MB~1GB 1GB~4GB

MSI Reminds You...

-Dual-channel DDR works ONLY in the 5 combinations listed in

-Please select the identical memory modules to install on the dual

-Always insert the memory modules into the GREEN slots first, and

-This mainboard DO NOT support the memory module installed

-Due to the South Bridge resource deployment, the system density

GREEN

256MB~1GB 256MB~1GB 512MB~2GB

256MB~1GB 256MB~1GB 512MB~2GB

the table shown in the previous page.
channel, and DO NOT install three memory modules on three

DIMMs, or it may cause some failure.
it is strongly recommended not to insert the memory modules into

the ORANGE slots while the GREEN slots are left empty.
with more than 18 pieces of IC (integrated circuit).
will only be detected up to 3+GB (not full 4GB) when each DIMM is

installed with an 1GB memory module.

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.

E-2-8

Volt

MSI Reminds You...

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

Notch

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

ATX1

13 1

24

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 +3.3V

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

This 12V power connector is used to provide power to the CPU.

854

1

JPW1

MSI Reminds You...

1. These three connectors connect to the ATX power supply and have to

2. Power supply of 350 watts (and above) is highly recommended for

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

1
2

3
4

ATX2

work together to ensure stable operation of the mainboard.
system stability.

ATX2 Pin Definition

PIN SIGNAL

1 5V

2 GND

3 GND

4 12V

E-2-9

MS-7176 ATX Mainboard

Back Panel

The back panel provides the following connectors:

Mouse

Parallel

SPDIF

Out

LAN

L-In

RS-Out

Keyboard

COM Port

USB Ports

L-Out
Mic

CS-Out
SPDIF
Out

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:

Pin Definition

6

4

2

PS/2 Mouse / Keyboard

(6-pin Female)

5

3

1

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

E-2-10

Hardware Setup

Serial Port Connector: COM Port

The mainboard offers one 9-pin male DIN connector COM Port. It’s a 16550A
high speed communication port that send/receive/ 16 bytes FIFOs. You can attach a
serial mouse or other serial device directly to it.

1 2 3 4 5

6 7 8 9

9-Pin Male DIN Connector

COM Port

Pin Definition

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

E-2-11

MS-7176 ATX Mainboard

LAN (RJ-45) Jack

The mainboard provides 1 standard RJ-45 jack for connection to single Local
Area Network (LAN). This LAN enables data to be transferred at 1000Mbps, 100Mbps
or 10Mbps. You can connect a network cable to it.

Giga-bit LAN Pin Definition

PIN SIGNAL DESCRIPTION

1 D0P Differential Pair 0+

2 D0N Differential Pair 0-

3 D1P Differential Pair 1+

RJ-45 LAN Jack

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 Realtek ALC880
to offer support for 7.1-channel audio operation and can turn rear audio connectors
from 2-channel to 4-/5.1-/7.1- channel audio.

E-2-12

S/PDIF Out-Coaxial

Line In / Line Out

(Surround R/L)

(in 7.1 CH)

Line Out

(Front R/L)

MIC

Rear Speaker Out

(in 7.1CH / 5.1CH)

Center/Subwoofer

Speaker Out

( in 7.1CH / 5.1CH)

SPDIF-Out

MSI Reminds You...

For the advanced functions of the audio codec, please refer to Chapter
4: Introduction to Realtek ALC882 Audio Codec for details.