LANPORTR X48-T3RS User Guide

System Board
User’s Manual

935-X48T31-500G

05900824E

Copyright

This publication contains information that is protected by copyright. No part of it
may be reproduced in any form or by any means or used to make any transfor­mation/adaptation without the prior written permission from the copyright hold­ers.

This publication is provided for informational purposes only. The manufacturer
makes no representations or warranties with respect to the contents or use of
this manual and specifically disclaims any express or implied warranties of
merchantability or fitness for any particular purpose. The user will assume the
entire risk of the use or the results of the use of this document. Further, the
manufacturer reserves the right to revise this publication and make changes to its
contents at any time, without obligation to notify any person or entity of such
revisions or changes.

© 2008. All Rights Reserved.

Trademarks

Windows® 2000 and Windows® XP are registered trademarks of Microsoft
Corporation. Award is a registered trademark of Award Software, Inc. Other
trademarks and registered trademarks of products appearing in this manual are
the properties of their respective holders.

FCC and DOC Statement on Class B

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 when the equip­ment is operated 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 following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the 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 TV 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.

2. Shielded interface cables must be used in order to comply with the emission
limits.

Table of Contents

About this Manual................................................................................

Warranty.................................................................................................

Static Electricity Precaution................................................................

Safety Measures.....................................................................................

About the Package...............................................................................

Before Using the System Board.........................................................

System Board Layout............................................................................

English.....................................................................................................

Français...................................................................................................

Deutsch...................................................................................................

Español....................................................................................................

4

4

5

5

6

6

7

8

35

65

95

General Debug LED POST and Troubleshooting ........................

124

1

Introduction

About this Manual

An electronic file of this manual is included in the CD. To view the
user’s manual in the CD, insert the CD into a CD-ROM drive. The
autorun screen (Main Board Utility CD) will appear. Click the
“TOOLS” icon then click “Manual” on the main menu.

For additional information on the system board, please download
the complete version of the manual from DFI’s website. Visit
www.dfi.com.

Warranty

1. Warranty does not cover damages or failures that arised from
misuse of the product, inability to use the product, unauthorized
replacement or alteration of components and product specifica­tions.

2. The warranty is void if the product has been subjected to physi­cal abuse, improper installation, modification, accidents or unau­thorized repair of the product.

3. Unless otherwise instructed in this user’s manual, the user may
not, under any circumstances, attempt to perform service, adjust­ments or repairs on the product, whether in or out of warranty.
It must be returned to the purchase point, factory or authorized
service agency for all such work.

4. We will not be liable for any indirect, special, incidental or
consequencial damages to the product that has been modified
or altered.

4

Static Electricity Precautions

It is quite easy to inadvertently damage your PC, system board,
components or devices even before installing them in your system
unit. Static electrical discharge can damage computer components
without causing any signs of physical damage. You must take extra
care in handling them to ensure against electrostatic build-up.

1. To prevent electrostatic build-up, leave the system board in its
anti-static bag until you are ready to install it.

2. Wear an antistatic wrist strap.

3. Do all preparation work on a static-free surface.

4. Hold the device only by its edges. Be careful not to touch any of
the components, contacts or connections.

5. Avoid touching the pins or contacts on all modules and connec­tors. Hold modules or connectors by their ends.

Introduction

1

Important:

Electrostatic discharge (ESD) can damage your processor, disk
drive and other components. Perform the upgrade instruction
procedures described at an ESD workstation only. If such a
station is not available, you can provide some ESD protection
by wearing an antistatic wrist strap and attaching it to a metal
part of the system chassis. If a wrist strap is unavailable, estab­lish and maintain contact with the system chassis throughout
any procedures requiring ESD protection.

Safety Measures

To avoid damage to the system:

• Use the correct AC input voltage range

To reduce the risk of electric shock:

• Unplug the power cord before removing the system chassis
cover for installation or servicing. After installation or servicing,
cover the system chassis before plugging the power cord.

..

.

..

Battery:

• Danger of explosion if battery incorrectly replaced.

• Replace only with the same or equivalent type recommend
the manufacturer.

• Dispose of used batteries according to local ordinance.

by

5

1

Introduction

About the Package

The system board package contains the following items. If any of
these items are missing or damaged, please contact your dealer or
sales representative for assistance.

; One system board
; One Bernstein audio module with cable
; One heat sink kit
; One IDE round cable
; One floppy round cable
; Four Serial ATA data cables
; Four Serial ATA power cables
; One I/O shield
; One RAID driver diskette
; One “Mainboard Utility” CD
; One user’s manual

The system board and accessories in the package may not come
similar to the information listed above. This may differ in accordance
to the sales region or models in which it was sold. For more infor­mation about the standard package in your region, please contact
your dealer or sales representative.

Before Using the System Board

Before using the system board, prepare basic system components.

If you are installing the system board in a new system, you will need
at least the following internal components.

• A CPU

• Memory module

• Storage devices such as hard disk drive, CD-ROM, etc.

You will also need external system peripherals you intend to use
which will normally include at least a keyboard, a mouse and a video
display monitor.

6

System Board Layout

Introduction

1

7

E

English

Chapter 1 - Specifications

English

Processor

Chipset

System Memory

Expansion Slots

• LGA 775 socket for:

- Intel® CoreTM2 Quad and Intel® CoreTM2 Duo

• Supports Intel Enhanced Memory 64 Technology (EMT64T)

• Supports Enhanced Intel SpeedStep Technology (EIST)

• Supports Intel Hyper-Threading Technology

• Supports 1600/1333/1066/800MHz FSB

®

• Intel

• Four 240-pin DDR3 DIMM sockets

• Supports DDR3 800/1066/1333/1600MHz

• Delivers up to 21Gb/s bandwidth at 1333MHz

• Supports dual channel (128-bit wide) memory interface

• Supports up to 8GB system memory

• Supports unbuffered x8 and x16 DIMMs

• 2 PCI Express (Gen 2) x16 slots (PCIE 1 and PCIE 3)

• 1 PCI Express x1 slot (PCIE 2)

• 1 PCI Express x4 slot (PCIE 4)

• 3 PCI slots

chipset

- Northbridge:
Intel® X48 Express chipset
Intel® Fast Memory Access technology

- Southbridge: Intel® ICH9R

- 2-way CrossFire at x16/x16 bandwidth

- 2-way CrossFire + Physics at x16/x16/x4 bandwidth

BIOS

Audio

LAN

• Award BIOS

• 8Mbit flash memory

• CMOS Reloaded

• Bernstein audio module

- Realtek ALC885 8-channel High Definition Audio CODEC

- Center/subwoofer, rear R/L and side R/L jacks

- Line-in, line-out (front R/L) and mic-in jacks

- 2 coaxial RCA S/PDIF-in/out jacks

- 1 optical S/PDIF connector

- 1 CD-in connector

- 1 front audio connector

• DAC SNR/ADC SNR of 106dB/101dB

• Full-rate lossless content protection technology

• Marvell 88E8052 and Marvell 88E8053 PCIE Gigabit LAN
controllers

• Fully compliant to IEEE 802.3 (10BASE-T), 802.3u (100BASE­TX) and 802.3ab (1000BASE-T) standards

8

English

E

Storage

IEEE 1394

Rear Panel I/O

Internal I/O

• Intel ICH9R chip

- Intel Matrix Storage technology

- Supports up to 6 SATA devices

- SATA speed up to 3Gb/s

- RAID 0, RAID 1, RAID 0+1 and RAID 5

• JMicron JMB363 PCI Express to SATA and PATA host controller

- Supports up to 2 UltraDMA 100Mbps IDE devices

- Supports 2 SATA devices

- SATA speed up to 3Gb/s

- RAID 0 and RAID 1

• VIA VT6307

• Supports two 100/200/400 Mb/sec ports

• Mini-DIN-6 PS/2 mouse port and PS/2 keyboard port

• 1 IEEE 1394 port

• 6 USB 2.0/1.1 ports

• 2 RJ45 LAN ports

• 3 connectors for 6 additional external USB 2.0 ports

• 1 connector for an external COM port

• 1 connector for an IEEE 1394 port

• 1 connector for the Bernstein audio module

• 1 front audio connector (on the Bernstein audio module)

• 1 CD-in connector (on the Bernstein audio module)

• 1 S/PDIF connector (on the Bernstein audio module)

• 1 IrDA connector and 1 CIR connector

• 8 Serial ATA connectors

• 1 40-pin IDE connector and 1 floppy connector

• 1 24-pin ATX power connector

• 1 8-pin 12V power connector

• 2 4-pin 5V/12V power connectors (FDD type)

• 1 front panel connector

• 6 fan connectors

• 1 diagnostic LED

• EZ touch switches (power switch and reset switch)

English

Power Management

Hardware Monitor

PCB

• ACPI and OS Directed Power Management

• ACPI STR (Suspend to RAM) function

• Wake-On-PS/2 / Wake-On-USB Keyboard/Mouse

• Wake-On-LAN and Wake-On-Ring

• RTC timer to power-on the system

• AC power failure recovery

• Monitors CPU/system/Northbridge temperature and overheat alarm

• Monitors Vcore/Vdimm/Vnb/VCC5/12V/V5sb/Vbat voltages

• Monitors the speed of the cooling fans

• CPU Overheat Protection function monitors CPU temperature
and fan during system boot-up - automatic shutdown upon sys­tem overheat

• 6 layers, ATX form factor ;

• 24.5cm (9.64") x 30.5cm (12")

9

E

English

English

Chapter 2 - Hardware Installation

Jumper Settings

Clear CMOS Data

Clearing CMOS Data using JP2

JP2

312 312

X

1-2 On: Normal

(default)

If you encounter the following,

a) CMOS data becomes corrupted.
b) You forgot the supervisor or user password.
c) The overclocked settings in the BIOS resulted to the system’s in-

stability or caused system boot up problems.

you can reconfigure the system with the default values stored in the
ROM BIOS.

To load the default values stored in the ROM BIOS, please follow
the steps below.

1. Power-off the system then unplug the power cord.

2. Set JP2 pins 2 and 3 to On. Wait for a few seconds and set JP2
back to its default setting, pins 1 and 2 On.

3. Now plug the power cord then power-on the system.

2-3 On:

Clear CMOS Data

10

English

Clearing CMOS Data using the EZ Clear® Function

EZ Clear® bypasses the manual process of using a jumper to clear
the CMOS by simply using the reset and power buttons.

E

Important:

EZ Clear® is supported only if standby power is present in the
system.

To use EZ Clear®:

1. Make sure the standby power is present.

2. Using the EZ touch switches on the system board, first press the
Reset button then the Power button simultaneously for approxi­mately 4 seconds.

English

X

Reset

If the system board is already enclosed in a chassis, apply the
same method using the Reset button and Power button located
at the front panel of the chassis.

3. After 4 seconds, release the power button first then the Reset
button.

4. The CMOS will restore the clock settings back to their default
values.

Power

11

E

English

PS/2 Power Select

English

JP7

312

31

2

X

1-2 On: 5V

(default)

Important:

The 5VSB power source of your
power supply must support
≥720mA.

Selecting 5VSB will allow you to use the PS/2 keyboard or PS/2
mouse to wake up the system.

2-3 On:

5VSB

USB Power Select

Selecting 5VSB will allow you to use the USB keyboard or USB
mouse to wake up the system..

Important:

The 5VSB power source of your power supply must support ≥1.5A (2 devices)
or ≥2A (3 or more devices).

USB 6-11
(JP5)

USB 0-5
(JP6)

X

1-2 On: 5V

(default)

1-2 On: 5V

(default)

X

3
2
1

312

3
2

1

2-3 On:

5VSB

312

2-3 On:

5VSB

12

Speaker On/Off Select

English

E

English

312 312

Buzzer

The system board is equipped with a buzzer which serves as the
PC’s speaker. By default the buzzer is “on” allowing you to hear the
system’s beep messages and warnings. If you intend to use an exter­nal speaker, turn this function off by setting JP8 pins 1 and 2 to On.

JP8

1-2 On:

X

Speaker Off

2-3 On:

Speaker On

(default)

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English

English

Safe Boot

JP1

312 312

X

1-2 On:

Default

This jumper is used to safely reboot the system whenever the sys­tem hangs and you are unable to restart the system.

1. Power-off the system then unplug the power cord.

2. Set pins 2 and 3 to On. Wait for a few seconds then set the
jumper back to its default setting, pins 1 and 2 On.

3. Plug the power cord then power-on the system. The system will
reboot normally without losing all data stored in the CMOS.

2-3 On:

Safe boot

14

Secondary RTC Reset

English

E

English

JP12

312

312

X

1-2 On: Normal

(default)

When the RTC battery is removed, this jumper resets the
manageability register bits in the RTC.

Note:

1. The SRTCRST# input must always be high when all other
RTC power planes are on.

2. In the case where the RTC battery is dead or missing on
the platform, the SRTCRST# pin must rise before the
RSMRST# pin.

2-3 On:

RTC reset

15

E

English

English

CPU FSB Select

X

JP14

4

3

2
1

JP15

JP13

By default, JP13 to JP15 are set to pins 1 and 2 On. This setting will
allow the system to automatically run according to the CPU’s FSB. If
you want to change the setting, please refer to the table below.

JP14

JP13

JP15

By CPU

1-2 On

1-2 On

1-2 On

FSB 800

3-4 On

2-3 On

2-3 On

FSB 1066

2-3 On

2-3 On

2-3 On

FSB 1333

2-3 On

2-3 On

3-4 On

16

Rear Panel I/O Ports

English

E

PS/2

Mouse

PS/2

K/B

PS/2 Ports and IEEE 1394 Ports

PS/2 Mouse

PS/2 KB

W

1394-0

W

1394-0

USB 8-9

LAN 2LAN 1

English

USB 6-7

USB 10-11

Ground

TPB-

+12V (fused)

Ground

TPA-

1394-1

2
1

TPA+

Ground

10

9

Key

TPB+

+12V (fused)

W

PS/2 Mouse and PS/2 Keyboard Ports

These ports are used to connect a PS/2 mouse and a PS/2 key­board.

IEEE 1394 Ports

The IEEE 1394-0 port is used to connect audio/video devices or
storage peripherals. The 10-pin connector allows you to connect an
additional 1394 port. Your 1394 port may come mounted on a
card-edge bracket. Install the card-edge bracket to an available slot
at the rear of the system chassis then connect the 1394 port cable
to this connector.

17

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English

USB Ports and LAN Ports

English

LAN 1

USB 11

USB 10

USB 9

USB 8

LAN 2

USB 7

USB 6

USB Ports

W

W

W

USB 4-5
USB 2-3

USB 0-1

-Data

+Data

-Data

+Data

GND

N. C.

10

Key

GND

9

VCC

2
1

VCC

The USB ports are used to connect USB 2.0/1.1 devices. The 10-pin
connectors allow you to connect 6 additional USB 2.0/1.1 ports.
Your USB ports may come mounted on a card-edge bracket. Install
the card-edge bracket to an available slot at the rear of the system
chassis then connect the USB port cables to these connectors.

LAN Ports

The LAN ports allow the system board to connect to a local area
network by means of a network hub.

18

Bernstein Audio Module

Line-in

Line-out

English

1

Left audio channel

Ground
Ground
Right audio channel

E

English

Mic-in

Center/

Subwoofer

Rear R/L

Side R/L

S/PDIF-out

S/PDIF-in

Line-in Jack (Light Blue)

This jack is used to connect any audio devices such as Hi-fi set, CD
player, tape player, AM/FM radio tuner, synthesizer, etc.

Side view

Bernstein audio
module connector

Mic Jet Detect

SPDIF in

GND

SPDIF out

Key

+5V

4

CD-in

10 9

N. C.

Vcc

GND

Front audio

5

Optical S/PDIF

1

Line out_LeftLine out Jet Detect

Sense

Line out_Right
Mic_Right
Mic_Left

12

Line-out Jack (Lime)

This jack is used to connect to the front right and front left speakers
of the audio system.

Mic-in Jack (Pink)

This jack is used to connect an external microphone.

Center/Subwoofer Jack (Orange)

This jack is used to connect to the center and subwoofer speakers
of the audio system.

Rear Right/Left Jack (Black)

This jack is used to connect to the rear right and rear left speakers
of the audio system.

Side Right/Left Jack (Gray)

This jack is used to connect to the side left and side right speakers
of the audio system.

19

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English

Coaxial RCA S/PDIF-in and SPDIF-out Jacks

These jacks are used to connect external audio output devices using
coaxial S/PDIF cables.

English

CD-in Connector

The CD-in connector is used to receive audio from a CD-ROM
drive, TV tuner or MPEG card.

Front Audio Connector

The front audio connector is used to connect to the line-out and
mic-in jacks that are at the front panel of your system.

Optical S/PDIF Connector

The optical S/PDIF connector is used to connect an external audio
output device using an optical S/PDIF cable.

Important:

DO NOT use optical S/PDIF and coaxial RCA S/PDIF at the
same time.

Installing the Bernstein Audio Module

1. The Bernstein audio
module connects to the
system board by means
of the provided audio
cable.

20

2. Insert one end of the
cable to the Bernstein
audio connector on the
system board and the
other end to the corre­sponding connector on
the audio module.

X

11

12

1

Bernstein audio

module connector

2

3. The length of the audio cable
provides the option and flexibil­ity of installing the module on
any available expansion bracket
slot at the rear of the system
chassis. Remove the screw of
the bracket where you want the
audio module installed then re­move the bracket. Place the
Bernstein audio module on the
expansion bracket slot then secure the module by replacing the
bracket screw you removed earlier.

I/O Connectors

English

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English

Audio cable

Serial ATA Connectors

The Serial ATA (SATA) connectors are used to connect Serial ATA
drives. Connect one end of the Serial ATA cable to a Serial ATA
connector and the other end to your Serial ATA device.

SATA 7-8
SATA 1-2

SATA 3-4
SATA 5-6

ICH9R supports SATA 1 to SATA 6.

JMB363 supports SATA 7 and SATA 8.

Configuring RAID

Refer to the RAID chapter in this manual for more information
about creating RAID on Serial ATA drives.

21

E

English

Floppy Disk Drive Connector and IDE Connector

English

40

39

X

21

IDE

33

X

34

FDD

Floppy Disk Drive Connector

The floppy disk drive connector is used to connect a floppy drive.
Insert one end of the floppy cable into this connector and the other
end-most connector to the floppy drive. The colored edge of the
cable should align with pin 1 of this connector.

1
2

IDE Disk Drive Connector

The IDE disk drive connector is used to connect 2 IDE disk drives.
An IDE cable have 3 connectors on them, one that plugs into this
connector and the other 2 connects to IDE devices. The connector
at the end of the cable is for the Master drive and the connector in
the middle of the cable is for the Slave drive. The colored edge of
the cable should align with pin 1 of this connector.

Note:

When using two IDE drives, one must be set as the master
and the other as the slave. Follow the instructions provided by
the drive manufacturer for setting the jumpers and/or switches
on the drives.

22

IrDA, CIR and Serial (COM) Connectors

IRRX

Ground

IRTX

IrDA

51

N. C.

VCC

English

E

English

COM

CIR

5

CIRTX

CIRRX

W

9

RI

N. C.

X

Ground

DSR

DTR

TD

GND

CTS

RTS

RD

2
1

CD

1

5VSB

IrDA and CIR Connectors

These connectors are used to connect an IrDA module and/or CIR
module.

Note:

The sequence of the pin functions on some IrDA/CIR cable
may be reversed from the pin function defined on the system
board. Make sure to connect the cable connector to the IrDA/
CIR connector according to their pin functions.

You may need to install the proper drivers in your operating system
to use the IrDA/CIR function. Refer to your operating system’s
manual or documentation for more information.

Serial (COM) Connector

The serial (COM) connector is used to connect modems, serial print­ers, remote display terminals, or other serial devices. Your COM port
may come mounted on a card-edge bracket. Install the card-edge
bracket to an available slot at the rear of the system chassis then
connect the serial port cable to this connector. The colored edge of
the cable should align with pin 1 of this connector.

23

E

English

Cooling Fan Connectors

English

N. C.

Power

Ground

Ground

NB fan

Power

N. C.

3

X

1

1

X

4

CPU fan

Power

Ground

X

13

3rd fan

31

N. C.

Ground

Power

2nd fan

X

These fan connectors are used to connect cooling fans. Cooling fans
will provide adequate airflow throughout the chassis to prevent over­heating the CPU and system board components.

13

X

System fan

Power

Ground

13

X

1st fan

Ground

Power

Sense

Speed
Control

N. C.

N. C.

24

EZ Touch Switches

Reset Power

X

The presence of the power switch and reset switch on the system
board are user-friendly especially to DIY users. They provide conven­ience in powering on and/or resetting the system while fine tuning
the system board before it is installed into the system chassis.

LEDs

English

E

English

DRAM
Power LED

Standby

Power LED

Diagnostic

LED

DRAM Power LED

This LED will light when the system’s power is on.

Standby Power LED

This LED will light when the system is in the standby mode.

Diagnostic LED

The Diagnostic LED displays POST codes. POST (Power-On Self
Tests) which is controlled by the BIOS is performed whenever you
power-on the system. POST will detect the status of the system and
its components. Each code displayed on the LED corresponds to a
certain system status.

.

.

.

.

Warning:

.

.

.

.

When the DRAM Power LED and/or Standby Power LED lit red,
it indicates that power is present on the DIMM sockets and/or
PCI slots. Power-off the PC then unplug the power cord prior to
installing any memory modules or add-in cards. Failure to do so
will cause severe damage to the motherboard and components.

25

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English

English

Power Connectors

Use a power supply that complies with the ATX12V Power Supply
Design Guide Version 1.1. An ATX12V power supply unit has a
standard 24-pin ATX main power connector that must be inserted
into this connector.

+3.3VDC

+12VDC
+12VDC

X

PWR_OK

+5VDC

+5VDC

+3.3VDC
+3.3VDC

+5VSB

COM

COM

COM

12 24

COM
+5VDC
+5VDC
+5VDC
NC
COM
COM
COM
PS_ON#

COM

-12VDC
+3.3VDC

131

Your power supply unit may come with an 8-pin or 4-pin +12V
power connector. The +12V power enables the delivery of more
+12VDC current to the processor’s Voltage Regulator Module
(VRM). If available, it is preferable to use the 8-pin power; otherwise
connect a 4-pin power to this connector.

+12V

X

58
14

Ground

26

English

The power connectors from the power supply unit are designed to
fit the 24-pin and 8-pin connectors in only one orientation. Make
sure to find the proper orientation before plugging the connectors.

E

The FDD-type power connectors are additional power connector.s If
you are using more than one graphics cards, we recommend that
you plug power cables from your power supply unit to the 5V/12V
power connectors. This will provide more stability to the entire sys­tem. The system board will still work even if the additional power
connector is not connected.

W

1

+5V

Ground

Ground

4

+12V

English

The system board requires a minimum of 300 Watt power supply
to operate. Your system configuration (CPU power, amount of
memory, add-in cards, peripherals, etc.) may exceed the minimum
power requirement. To ensure that adequate power is provided, we

strongly recommend that you use a minimum of 400 Watt (or
greater) power supply.

Important:

Insufficient power supplied to the system may result in instabil­ity or the add-in boards and peripherals not functioning prop­erly. Calculating the system’s approximate power usage is im­portant to ensure that the power supply meets the system’s
consumption requirements.

27

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English

Restarting the PC

Normally, you can power-off the PC by:

1. Pressing the power button at the front panel of the chassis.

or

2. Pressing the power switch that is on the system board (note: not
all system boards come with this switch).

If for some reasons you need to totally cut off the power supplied
to the PC, switch off the power supply or unplug the power cord.
Take note though that if you intend to restart it at once, please
strictly follow the steps below.

1. The time where power is totally discharged varies among power
supplies. It's discharge time is highly dependent on the system's
configuration such as the wattage of the power supply, the se­quence of the supplied power as well as the number of periph­eral devices connected to the system. Due to this reason, we
strongly recommend that you wait for the Standby Power LED
(refer to the “LEDs” section in this chapter for the location of the
Standby Power LED) to lit off.

2. After the Standby Power LED has lit off, wait for 6 seconds
before powering on the PC.

If the system board is already enclosed in a chassis which appar­ently will not make the Standby Power LED visible, wait for 15
seconds before you restore power connections. 15 seconds is
approximately the time that will take the LED to lit off and the
time needed before restoring power.

The above will ensure protection and prevent damage to the
motherboard and components.

28

Front Panel Connectors

SPEAKER

English

E

English

RESET

HD-LED

19

X

20

PWR-LED

ATX-SW

HD-LED: Primary/Secondary IDE LED

This LED will light when the hard drive is being accessed.

RESET: Reset Switch

This switch allows you to reboot without having to power off the
system thus prolonging the life of the power supply or system.

SPEAKER: Speaker Connector

This connects to the speaker installed in the system chassis.

ATX-SW: ATX Power Switch

Depending on the setting in the BIOS setup, this switch is a “dual
function power button” that will allow your system to enter the Soft­Off or Suspend mode.

1

2

29

E

English

PWR-LED: Power/Standby LED

When the system’s power is on, this LED will light. When the system
is in the S1 (POS - Power On Suspend) or S3 (STR - Suspend To
RAM) state, it will blink every second.

English

Note:

If a system did not boot-up and the Power/Standby LED did
not light after it was powered-on, it may indicate that the CPU
or memory module was not installed properly. Please make
sure they are properly inserted into their corresponding socket.

Pin

Pin Assignment

HD-LED

(Primary/Secondary IDE LED)

Reserved

ATX-SW

(ATX power switch)

Reserved

RESET

(Reset switch)

SPEAKER

(Speaker connector)

PWR-LED

(Power/Standby LED)

3

HDD LED Power

5

HDD

14

N. C.

16

N. C.

8

PWRBT+

10

PWRBT-

18

N. C.

20

N. C.

7

Ground

9

H/W Reset

13

Speaker Data

15

N. C.

17

Ground

19

Speaker Power

2

LED Power (+)

4

LED Power (+)

6

LED Power (-) or Standby Signal

30