ABIT AX78 User Manual

“

AX78

Motherboard AMD Socket AM2+/AM2

User’s Manual

Hardware Setup

BIOS Setup

Driver & Utility Multilingual QIG Appendix

 AMD 770 / SB600

 5200MT/s HT3.0

 Dual Channel DDR2 1066

 PCI Express 2.0

 Gigabit LAN

 SATA 3Gb/s RAID

 USB 2.0

 7.1-Channel HD Audio

 S/PDIF Out

 abit SoftMenu™ Technology

About this Manual:

This user’s manual contains all the information you may need for setting up this motherboard. To read the user’s manual of PDF format (readable by Adobe Reader), place the “Driver & Utility CD” into the CD-ROM drive in your system. The auto-run screen will appear, click the

Manual” tab to enter its submenu. If not, browse the root directory of the CD-ROM via the File Manager, and double click the “AUTORUN” file.

 abit Silent OTES™ Technology

 External CMOS Clearing

Switch

 Vista Premium HW Ready

The information in this document is subject to change without notice and does not represent a commitment on part of the vendor, who assumes no liability or responsibility for any errors that may appear in this manual.

No warranty or representation, either expressed or implied, is made with respect to the quality, accuracy or fitness for any particular part of this document. In no event shall the manufacturer be liable for direct, indirect, special, incidental or consequential damages arising from any defect or error in this manual or product.

Product names appearing in this manual are for identification purpose only and trademarks and product names or brand names appearing in this document are the property of their respective owners.

This document contains materials protected under International Copyright Laws. All rights reserved. No part of this manual may be reproduced, transmitted or transcribed without the expressed written permission of the manufacturer and authors of this manual.

If you do not properly set the motherboard settings, causing the motherboard to malfunction or fail, we cannot guarantee any responsibility.

Directive 2002/96/EC on Waste Electrical and Electronic Equipment (WEEE): (The mark and information are

Best Management Practices for Perchlorate Materials:

Perchlorate Material – special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate/.

环保使用期限标识说明 (The mark and information are applicable for People's Republic of China only.)

applicable for EU-member states only.)

The use of the symbol indicates that this product may not be treated as household waste. By Ensuring this product is disposed of correctly, you will help prevent potential ne environment and human health, which could otherwise be cause by inappropriate waste handlin product. For more detailed information about recycling of this product, please contact your local city office, your household waste disposal service or the shop where you purchased the product.

环保使用期限标识是根据<电子信息产品污染控制管理办法>以及<电子信息产品污染控制标识要求>(SJ/T11364-2006) ，<电子信息产品环保使用期限通则>制定的，适用于中国境内销售的电子信息产品的标识。

只要按照安全及使用说明内容在正常使用电子信息产品情况下、从生产月期算起，在此期限内产品中含有的有毒有害物质不致发生外泄或突变、不致对环境造成严重污染或对其人身、财产造成严重损害。产品正常使用后，要废弃在环保使用年限内或者刚到年限的产品，请根据国家标准采取适当的方法进行处置。另外，此期限不同于质量/功能的保证期限。

ative consequences for the

of this

有毒有害物质含有表 (This information is applicable for People's Republic of China only.)

产品中有毒有害物质或元素的名称及含量

部件名称

PCB 板 ○ ○ ○ ○ ○ ○ 结构件 ○ ○ ○ ○ ○ ○

芯片及其他主动件 × ○ ○ ○ ○ ○

连接器 × ○ ○ ○ ○ ○

被动电子元器件 × ○ ○ ○ ○ ○

焊接金属 ○ ○ ○ ○ ○ ○

线材 × ○ ○ ○ ○ ○ 光盘 ○ ○ ○ ○ ○ ○

助焊剂、散热膏、标签及

其他耗材

○: 表示该有毒有害物质在该部件所有均质材料中的含量均在 SJ/T11363-2006 标准规定的限量要求以下。 ×: 表示该有毒有害物质至少在该部件的某一均质材料中的含量超出 SJ/T11363-2006 标准规定的限量要求。

铅(Pb) 汞(Hg) 镉(Cd) 六价铬(Cr(VI)) 多溴联苯(PBB)

○ ○ ○ ○ ○ ○

有毒有害物质或元素

多溴二苯醚

(PBDE)

ii AX78

Contents

1. Hardware Setup ............................................................... 1-1

1.1 Specifications............................................................................... 1-1

1.2 Motherboard Layout ..................................................................... 1-2

1.3 Choosing a Computer Chassis ....................................................... 1-3

1.4 Installing Motherboard .................................................................1-3

1.5 Checking Jumper Settings............................................................. 1-4

1.5.1 CMOS Memory Clearing Header and Backup Battery .............. 1-4

1.6 Connecting Chassis Components ................................................... 1-6

1.6.1 ATX Power Connectors......................................................... 1-6

1.6.2 Front Panel Switches & Indicators Headers ........................... 1-7

1.6.3 FAN Power Connectors ........................................................ 1-8

1.7 Installing Hardware...................................................................... 1-9

1.7.1 CPU Socket AM2.................................................................. 1-9

1.7.2 Memory Slots .................................................................... 1-11

1.7.3 PCI Express X16 Add-on Slots (Install Graphics Card) .......... 1-12

1.8 Connecting Peripheral Devices .................................................... 1-13

1.8.1 Floppy and IDE Disk Drive Connectors ................................ 1-13

1.8.2 Serial ATA Connectors ....................................................... 1-14

1.8.3 Additional USB 2.0 Port Headers......................................... 1-15

1.8.4 Internal Audio Connector ................................................... 1-15

1.8.5 Front Panel Audio Connection Header ................................. 1-16

1.8.6 S/PDIF Output Connection Header...................................... 1-16

1.8.7 PCI and PCI Express X1 Slots ............................................. 1-17

1.9 Onboard Indicators .................................................................... 1-18

1.9.1 POST Code Displayer ......................................................... 1-18

1.9.2 Power Source Indicators .................................................... 1-19

1.10 Connecting Rear Panel I/O Devices ........................................... 1-20

Hardware Setup

BIOS Setup

Driver & Utility Multilingual QIG Appendix

2. BIOS Setup....................................................................... 2-1

2.1 SoftMenu Setup ...........................................................................2-2

2.2 Standard CMOS Features.............................................................. 2-3

2.3 Advanced BIOS Features .............................................................. 2-6

2.4 Advanced Chipset Features........................................................... 2-8

2.5 Integrated Peripherals.................................................................. 2-9

2.6 Power Management Setup .......................................................... 2-11

2.7 PnP/PCI Configurations .............................................................. 2-13

2.8 PC Health Status ........................................................................ 2-14

2.9 Load Fail-Safe Defaults............................................................... 2-16

2.10 Load Optimized Defaults........................................................... 2-16

2.11 Set Password ........................................................................... 2-16

2.12 Save & Exit Setup..................................................................... 2-16

2.13 Exit Without Saving .................................................................. 2-16

3. Driver & Utility ................................................................. 3-1

3.1 CD-ROM AUTORUN ...................................................................... 3-1

AX78 iii

3.2 Q-Install ......................................................................................3-2

3.3 ATI South Bridge Drivers .............................................................. 3-2

3.4 Marvel LAN Driver ........................................................................ 3-3

3.5 Realtek Audio Driver..................................................................... 3-3

3.6 Cool’n’Quiet Driver ....................................................................... 3-4

3.7 USB 2.0 Driver .............................................................................3-5

3.8 Acrobat Reader 8.0 ...................................................................... 3-5

3.9 abit EQ (The Hardware Doctor Utility) ...........................................3-6

3.10 FlashMenu (BIOS Update Utility) ................................................. 3-7

3.11 SATA RAID Driver (for Windows Vista) ........................................ 3-8

3.12 SATA RAID Driver (for Windows XP, 2003, or 2000) ..................... 3-8

4. Multilingual Quick Installation Guide .............................. 4-1

4.1 Français//Guide d'Installation Rapide............................................. 4-1

4.2 Deutsch//Kurze Installationsanleitung............................................ 4-2

4.3 Italiano//Guida all’installazione rapida ........................................... 4-3

4.4 Español//Guía rápida de instalación............................................... 4-4

4.5 Português//Guia de instalação rápida ............................................ 4-5

4.6 Русский//Краткое руководство по установке .............................. 4-6

4.7 Eesti//Kiirpaigaldusjuhend ............................................................ 4-7

4.8 Latviski//Ātrās instalēšanas instrukcija........................................... 4-8

4.9 Lietuvių//Trumpas instaliavimo vadovas ........................................ 4-9

4.10 Polski//Instrukcja szybkiej instalacji........................................... 4-10

4.11 Magyar//Gyorstelepítési útmutató.............................................. 4-11

4.12 Türkçe//Hızlı Kurulum Kılavuzu.................................................. 4-12

4.13 اللغة العربية//دليل التركيب السريع....................... 4-13

4.14 فارسی// راﻩنمای نصب سریع............................................... 4-14

4.15 日本語//クイックインストールガイド ...................................... 4-15

4.16 한국어//빠른 설치 가이드 ....................................................... 4-16

4.17 Bahasa Malaysia//Panduan Pemasangan Ringkas ....................... 4-17

4.18 ไทย//คู่มือการติดตั้งอย่างย่อ ........................................................ 4-18

4.19 繁體中文................................................................................. 4-19

4.19.1 規格............................................................................... 4-19

4.19.2 快速安裝略說.................................................................. 4-20

4.20 简体中文................................................................................. 4-21

4.20.1 规格............................................................................... 4-21

4.20.2 快速安装略说.................................................................. 4-22

5. Appendix .......................................................................... 5-1

5.1 AWARD POST Code Definitions ..................................................... 5-1

5.2 Troubleshooting (How to Get Technical Support?).......................... 5-5

5.2.1 Q & A .................................................................................5-5

5.2.2 Technical Support Form....................................................... 5-8

iv AX78

5.2.3 Contact Information............................................................. 5-9

1. Hardware Setup

1.1 Specifications

Hardware Setup

CPU

• Supports Socket AMD AM2+/AM2 Processor using Hyper Transport™ Technology up to 5200MT/s

* AM2+ running HT3.0 5200MT/s * AM2 running HT1.0 2000MT/s

• Supports AMD CPU Cool ‘n’ Quiet Technology

Chipset

• AMD 770 / SB600

Memory

• 4x 240-pin DIMM slots support maximum memory capacity up to 8GB

• Supports Dual Channel DDR2 1066 Un-buffered ECC/Non-ECC memory

DDR2 1066 is supported by AM2+ CPU only.

LAN

• Onboard Gigabit LAN

Audio

• Onboard 7.1-Channel HD Audio CODEC

• Supports Auto Jack Sensing and S/PDIF

Out

Serial ATA

• 4x SATA 3Gb/s supports SATA RAID 0, 1, 0+1

Expansion Slots

• 1x PCI-E X16 Slot (X16 Bandwidth)

• 1x PCI-E X16 Slot (X4 Bandwidth)

• 1x PCI-E X1 Slot

• 3x PCI Slots

Internal I/O Connectors

• 1x Floppy port

• 1x Ultra ATA 133 IDE connector

• 4x SATA 3Gb/s connectors

• 3x USB 2.0 headers

• 1x FP-Audio header

• 1x CD-In connector

• 1x S/PDIF Out Header

Rear Panel I/O

• 1x PS/2 Keyboard connector

• 1x PS/2 Mouse connector

• 1x External CMOS Clearing Switch

• 1x Optical S/PDIF Out Connector

• 1x 7.1-Channel Audio connector

• 4x USB 2.0 connectors

• 1x RJ-45 LAN connector

abit Engineered

• abit Softmenu™ Technology

• abit Silent OTES

• External CMOS Clearing Switch

™

Technology

RoHS

• 100% Lead-free process and RoHS compliant

Miscellaneous

• ATX form factor (305mm x 245mm)

• Vista Premium HW Ready

※ Specifications and information contained herein are subject to change without

notice.

AX78 1-1

1.2 Motherboard Layout

1-2 AX78

1.3 Choosing a Computer Chassis

• Choose a chassis big enough to install this motherboard.

• As some features for this motherboard are implemented by cabling connectors on the

motherboard to indicators and switches or buttons on the chassis, make sure your chassis supports all the features required.

• If there is a possibility of adopting some more hard drives, make sure your chassis has sufficient power and space for them.

• Most chassis have alternatives for I/O shield located at the rear panel. Make sure the I/O shield of the chassis matches the I/O port configuration of this motherboard. You can find an I/O shield specifically designed for this motherboard in its package.

1.4 Installing Motherboard

Most computer chassis have a base with many mounting holes to allow the motherboard to be securely attached, and at the same time, prevent the system from short circuits. There are two ways to attach the motherboard to the chassis base: (1) with studs, or (2) with spacers.

Basically, the best way to attach the board is with studs. Only if you are unable to do this should you attach the board with spacers. Line up the holes on the board with the mounting holes on the chassis. If the holes line up and there are screw holes, you can attach the board with studs. If the holes line up and there are only slots, you can only attach with spacers. Take the tip of the spacers and insert them into the slots. After doing this to all the slots, you can slide the board into position aligned with slots. After the board has been positioned, check to make sure everything is OK before putting the chassis back on.

※ Always power off the computer and unplug the AC power cord before adding or

removing any peripheral or component. Failing to so may cause severe damage to your motherboard and/or peripherals. Plug in the AC power cord only after you have carefully checked everything.

To install this motherboard:

1. Locate all the screw holes on the motherboard and the chassis base.

2. Place all the studs or spacers needed on the chassis base and have them tightened.

3. Face the motherboard’s I/O ports toward the chassis’s rear panel.

4. Line up all the motherboard’s screw holes with those studs or spacers on the chassis.

5. Install the motherboard with screws and have them tightened.

※ To prevent shorting the PCB circuit,

please REMOVE the metal studs or spacers if they are already fastened on the chassis base and are without mounting-holes on the motherboard to align with.

Face the chassis’s rear panel.

Hardware Setup

AX78 1-3

1.5 Checking Jumper Settings

• For a 2-pin jumper, plug the jumper cap on both pins will make it CLOSE (SHORT). Remove the jumper cap, or plug it on either pin (reserved for future use) will leave it at OPEN position.

• For 3-pin jumper, pin 1~2 or pin 2~3 can be shorted by plugging the jumper cap in.

SHORT OPEN

1.5.1 CMOS Memory Clearing Header and Backup Battery

The time to clear the CMOS memory occurs when (a) the CMOS data becomes corrupted, (b) you forgot the supervisor or user password preset in the BIOS menu, (c) you are unable to boot-up the system because the CPU ratio/clock was incorrectly set in the BIOS menu, or (d) whenever there is modification on the CPU or memory modules.

This header uses a jumper cap to clear the CMOS memory and have it reconfigured to the default values stored in BIOS.

• Pins 1 and 2 shorted (Default): Normal

operation.

• Pins 2 and 3 shorted: Clear CMOS memory.

To clear the CMOS memory and load in the default values:

1. Power off the system.

2. Set pin 2 and pin 3 shorted by the jumper cap. Wait for a few seconds. Set the jumper cap back to its default settings --- pin 1 and pin 2 shorted.

3. Power on the system.

4. For incorrect CPU ratio/clock settings in the BIOS, press <Del> key to enter the BIOS setup menu right after powering on system.

5. Set the CPU operating speed back to its default or an appropriate value.

6. Save and exit the BIOS setup menu.

※ Another easy way to clear the CMOS memory can be done by setting the

“EZ-CCMOS1” switch, see the section of “Connecting Rear Panel I/O Devices” in this manual for detail.

Pin 1~2 SHORT Pin 2~3 SHORT

OPEN

1-4 AX78

CMOS Backup Battery:

An onboard battery saves the CMOS memory to keep the BIOS information stays on even after disconnected your system with power source. Nevertheless, this backup battery exhausts after some five years. Once the error message like “CMOS BATTERY HAS FAILED” or “CMOS checksum error” displays on monitor, this backup battery is no longer functional and has to be renewed.

Hardware Setup

To renew the backup battery:

1. Power off the system and disconnect with AC power source.

2. Remove the exhausted battery.

3. Insert a new CR2032 or equivalent battery. Pay attention to its polarity. The “+” side is its positive polarity.

4. Connect AC power source and power on the system.

5. Enter the BIOS setup menu. Reconfigure the setup parameters if necessary.

CAUTION:

※ Danger of explosion may arise if the battery is incorrectly renewed.

※ Renew only with the same or equivalent type recommended by the battery

manufacturer.

※ Dispose of used batteries according to the battery manufacturer’s instructions.

AX78 1-5

1.6 Connecting Chassis Components

1.6.1 ATX Power Connectors

For a fully configured system, we recommend that you use a power supply of ATX12V 2.0 (or newer) specification compliant and of providing minimum 400W power output capability.

※ The following motherboard photos are

served for DEMO only, and may not be the same type or model as the one

[ATXPWR1]: 24-pin power connector

You may connect either a 20-pin (ATX12V

1.3) or 24-pin (ATX12V 2.0) power source.

However, it is recommended to connect the 24-pin ATX12V power source to meet the 240VA protection limits.

described in this user’s manual.

Plugged from a 24-pin ATX12V power.

Plugged from a 20-pin ATX12V power.

[ATX12V1]: 8-pin power connector

This connector supplies +12V power to CPU.

You may connect either a 4-pin ATX12V or an 8-pin EPS12V power source. However, it is recommended to connect the 8-pin EPS12V power source to meet the 240VA protection limits.

Plugged from a 4-pin ATX12V power.

Plugged from an 8-pin EPS12V power.

1-6 AX78

1.6.2 Front Panel Switches & Indicators Headers

This header is used for connecting switches and LED indicators on the chassis front panel.

Watch the power LED pin position and orientation. The mark “+” align to the pin in the figure below stands for positive polarity for the LED connection. Please pay attention when connecting these headers. A wrong orientation will only result in the LED not lighting, but a wrong connection of the switches could cause system malfunction.

Hardware Setup

• HLED (Pin 1, 3):

Connects to the HDD LED cable of chassis front panel.

• RST (Pin 5, 7):

Connects to the Reset Switch cable of chassis front panel.

• SPKR (Pin 13, 15, 17, 19):

Connects to the System Speaker cable of chassis.

• SLED (Pin 2, 4):

Connects to the Suspend LED cable (if there is one) of chassis front panel.

• PWR (Pin 6, 8):

Connects to the Power Switch cable of chassis front panel.

• PLED (Pin 16, 18, 20):

Connects to the Power LED cable of chassis front panel.

AX78 1-7

1.6.3 FAN Power Connectors

These connectors each provide power to the cooling fans installed in your system.

• CPUFAN1: CPU Fan Power Connector

• SYSFAN1: System Fan Power Connector

• AUXFAN1~2: Auxiliary Fan Power Connectors

※ These fan connectors are not jumpers. DO NOT place jumper caps on these

connectors.

3-pin

4-pin

※ Either a

is still capable of having its fan speed controlled. Please refer to the BIOS setup route: “PC Health Status”  “CPU FANEQ Control”  “CPU FAN Type” to select the one of your own.

1-8 AX78

CPU cooling fan connected to the “CPUFAN1” connector

1.7 Installing Hardware

※ DO NOT scratch the motherboard when installing hardware. An accidentally

scratch of a tiny surface-mount component may seriously damage the motherboard.

1.7.1 CPU Socket AM2

※ DO NOT touch or bend the delicate pins on the CPU whenever you are holding it.

The installation procedures vary with different types of CPU fan-and-heatsink assembly. The one shown here is served for DEMO only. For detailed information on how to install the one you bought, refer to its installation guidelines.

1. Pull out the socket lever away from the

socket and fully lift it up over 90-degree angle.

Locate and align the triangle mark with both the CPU and the socket body. Vertically place the CPU with its pin-side down into the socket.

Be careful to insert the CPU into the socket. The CPU only fits in one orientation with the socket. DO NOT force the CPU into the socket.

2. After placing the CPU into position, push

the socket lever down into its locked position to secure the CPU. The lever clicks when it’s locked into position.

Hardware Setup

3. The heatsink for CPU may have thermal

interface material attached to its bottom. If not, applying a few squeeze of thermal paste to the CPU die will help to increase the contact.

AX78 1-9

4. Place the heatsink and fan assembly

onto the retention frame. Match the heatsink clip with the socket mounting-lug. Hook the spring clip to the mounting-lug.

5. On the other side, push the retention

clip straight down to lock into the plastic lug on the retention frame.

6. Connect the CPU cooling fan power

cable to the CPUFAN1 connector on this motherboard.

※ Either a

fan connected to the “CPUFAN1” connector is still capable of having its fan speed controlled. Please refer to the BIOS setup route: “PC Health Status”  “CPU FANEQ Control”  “CPU FAN Type” to select the one of your own.

Also, please watch out for the orientation when inserting 3-Pin plug into this 4-Pin fan connector.

※ The motherboard in this illustration is served for DEMO only, may not be the

same type or model as the one described in this user’s manual.

※ A higher fan speed will be helpful for better airflow and heat-dissipation.

Nevertheless, stay alert to not touch any heatsink since a high temperature generated by the working system is still possible.

3-pin

4-pin

CPU cooling

1-10 AX78

1.7.2 Memory Slots

To reach the performance of dual channel memory, the following rules must be obeyed:

• For a 2-DIMM dual-channel installation: Populate DIMM modules of the same type and size on slots [DIMM1]+[DIMM2], or slots [DIMM3]+[DIMM4].

• For a 4-DIMM dual-channel installation: Populate 2 DIMM modules of the same type and size on slots [DIMM1]+[DIMM2], and another 2 DIMM modules of the same type and size on slots [DIMM3]+[DIMM4].

※ [DIMM1] and [DIMM2] slots are made of the same color.

[DIMM3] and [DIMM4] are made of another same color.

Usually there is no hardware or BIOS setup requires after adding or removing memory modules, but you will have to clear the CMOS memory first if any memory module related problem occurs.

Hardware Setup

To install system memory:

1. Power off the computer and unplug the AC power cord before installing or removing memory modules.

2. Locate the DIMM slot on the board.

3. Hold two edges of the DIMM module carefully, keep away from touching its connectors.

4. Align the notch key on the module with the rib on the slot.

5. Firmly press the module into the slots until the ejector tabs at both sides of the slot automatically snap into the mounting notch. Do not force the DIMM module in with extra force as the DIMM module only fits in one direction.

6. To remove the DIMM modules, push the two ejector tabs on the slot outward simultaneously, and then pull out the DIMM module.

※ Static electricity can damage the electronic components of the computer or

optional boards. Before starting these procedures, ensure that you are discharged of static electricity by touching a grounded metal object briefly.

AX78 1-11

1.7.3 PCI Express X16 Add-on Slots (Install Graphics Card)

This motherboard provides dual PCI Express X16 slots for one or two graphics cards installation of graphics cards that comply with PCI Express specifications.

One PCI Express graphics card installation:

Insert your PCI Express graphics card into slot [PCIEXP1].

※ Do not install only one graphics

card on slot [PCIEXP2], this will pull its speed down to x4 only.

Two PCI Express graphics cards installation:

Install the master graphics card into slot [PCIEXP1]. Install the slave graphics card into slot [PCIEXP2].

※ Both the graphics cards must be of

the same GPU family.

※ Make sure your power supply is sufficient to provide the minimum power

required. (For a fully configured system with two PCI Express X16 cards installed, a power supply with minimum 500W or more power output is recommended.)

※ Refer to the instruction guide that came with the graphics card on how to run

its dual display mode.

1-12 AX78

1.8 Connecting Peripheral Devices

1.8.1 Floppy and IDE Disk Drive Connectors

The FDC1 connector connects up to two floppy drives with a 34-wire, 2-connector floppy cable. Connect the single end at the longer length of ribbon cable to the FDC1 on the board, the two connectors on the other end to the floppy disk drives connector. Generally you need only one floppy disk drive in your system.

※ The red line on the ribbon cable must be aligned with pin-1 on both the FDC1

port and the floppy connector.

Each of the IDE port connects up to two IDE drives at Ultra ATA/100 mode by one 40-pin, 80-conductor, and 3-connector Ultra ATA/66 ribbon cables.

Connect the sin length of ribbon cable to the IDE port of this board, the other two ends (gray and black connector) at the shorter length of the ribbon cable to the connectors of your hard drives.

※ Make sure to configure the “Master” and “Slave” relation before connecting

two drives by one single ribbon cable. The red line on the ribbon cable must be aligned with pin-1 on both the IDE port and the hard-drive connector.

le end (blue connector) at the longer

Hardware Setup

AX78 1-13

1.8.2 Serial ATA Connectors

Each SATA connector serves as one single channel to connect one SATA device by SATA cable.

To connect SATA device:

1. Attach either end of the si to the SATA connector on motherboard. Attach the other end to the SATA device.

2. Attach the SATA power cable to the SATA device and connect the other end from the power supply.

nal cable

1-14 AX78

1.8.3 Additional USB 2.0 Port Headers

Each header supports 2x additional USB 2.0 ports by connecting bracket or cable to the rear I/O panel or the front-mounted USB ports of your chassis.

Pin Pin Assignment Pin Pin Assignment

1 VCC 2 VCC 3 Data0 - 4 Data1 5 Data0 + 6 Data1 + 7 Ground 8 Ground

10 NC

※ Make sure the connecting cable bears the same pin assignment.

1.8.4 Internal Audio Connector

This connector connects to the audio output of internal CD-ROM drive or add-on card.

Hardware Setup

AX78 1-15

1.8.5 Front Panel Audio Connection Header

This header provides the front panel connection for HD (High Definition) Audio, yet for AC’97 Audio CODEC connection, you must carefully check the pin assignment before connecting from the front panel module. An incorrect connection may cause malfunction or even damage the motherboard.

※ Please do not connect the “Ground” cable or “USB VCC” cable

from the front panel module to the Pin 4 “AVCC” of this header.

Pin Assignment

(HD AUDIO)

1 MIC2 L 1 MIC In

2 AGND 2 GND

3 MIC2 R 3 MIC Power

4 AVCC 4NC

5 FRO-R 5 Line Out (R)

6 MIC2_JD 6 NC

7F_IO_SEN 7 NC

9 FRO-L 9 Line Out (L)

10 LINE2_JD 10 NC

※ To configure AC’97 front panel audio connection, please enter the BIOS setup

menu and select the option [AC97] via route: “Integrated Peripherals”  “FP-Audio”.

Pin Assignment

(AC’97 AUDIO)

1.8.6 S/PDIF Output Connection Header

This header provides the S/PDIF output connection to your add-on HDMI VGA card.

Pin Pin Assignment

1 VCC (5V) 2 x 3 S/PDIF Out

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4 Ground

1.8.7 PCI and PCI Express X1 Slots

Install PCI Express X1 card into slot “PCIE1”.

Install PCI cards into slots “PCI1”, “PCI2”, and/or “PCI3”.

Hardware Setup

AX78 1-17

1.9 Onboard Indicators

1.9.1 POST Code Displayer

This is an LED device to display the “POST” Code, the acronym for Power On Self Test. The computer will execute the POST action whenever you power on the computer. The POST process is controlled by the BIOS. It is used to detect the status of the computer’s main components and peripherals. Each POST Code corresponds to different checkpoints that are also defined by the BIOS in advance. For example, “memory presence test” is an important checkpoint and its POST Code is “C1”. When the BIOS execute any POST item, it will write the corresponding POST Code into the address 80h. If the POST passes, the BIOS will process the next POST item and write the next POST Code into the address 80h. If the POST fails, we can check the POST Code in address 80h to find out where the problem lies.

See Appendix for AWARD POST Code definitions.

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1.9.2 Power Source Indicators

• 5VSB: This LED lights up when the power supply is connected with power source.

• VCC: This LED lights up when the system power is on.

Hardware Setup

AX78 1-19

1.10 Connecting Rear Panel I/O Devices

The rear I/O part of this motherboard provides the following I/O ports:

• Mouse: Connects to PS/2 mouse.

• Keyboard: Connects to PS/2 keyboard.

• EZ-CCMOS1: This switch enables clearing the CMOS memory without uncovering the

system chassis.

To clear the CMOS memory by EZ-CCMOS1 switch: Step 1: Power off the system. Step 2: Turn left this switch to the “Clear

CMOS” position. Step 3: Turn right this switch to its default

“Normal” position. The default CMOS memory is now reloaded.

※ Shut down the system power before

setting this switch.

※ Set this switch back to its default

“Normal” position before turning on the system power.

• AUDIO1: Cen./Sub. (Center / Subwoofer): Connects to the center and subwoofer channel. R.L./R.R. (Rear Left / Rear Right): Connects to the rear left and rear right channel. S.L./S.R. (Surround Left / Surround Right): Connects to the surround left and

surround right channel.

Line-In: Connects to the line out from external audio sources. Line-Out: Connects to the front left and front right channel. Mic-In: Connects to the plug from external microphone.

• LAN1: Connects to Local Area Network.

• USB1/USB2: Connects to USB devices such as scanner, digital speakers, monitor, mouse,

keyboard, hub, digital camera, joystick etc.

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+ 56 hidden pages

ABIT AX78 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1.1 Specifications

1.2 Motherboard Layout

1.3 Choosing a Computer Chassis

1.4 Installing Motherboard

1.5 Checking Jumper Settings

1.5.1 CMOS Memory Clearing Header and Backup Battery

1.6 Connecting Chassis Components

1.6.1 ATX Power Connectors

1.6.2 Front Panel Switches & Indicators Headers

1.6.3 FAN Power Connectors

1.7 Installing Hardware

1.7.1 CPU Socket AM2

1.7.2 Memory Slots

1.7.3 PCI Express X16 Add-on Slots (Install Graphics Card)

1.8 Connecting Peripheral Devices

1.8.1 Floppy and IDE Disk Drive Connectors

1.8.2 Serial ATA Connectors

1.8.3 Additional USB 2.0 Port Headers

1.8.4 Internal Audio Connector

1.8.5 Front Panel Audio Connection Header

1.8.6 S/PDIF Output Connection Header

1.8.7 PCI and PCI Express X1 Slots

1.9 Onboard Indicators

1.9.1 POST Code Displayer

1.9.2 Power Source Indicators

1.10 Connecting Rear Panel I/O Devices