Gigabyte GA-7S748, GA-7S748-L User Manual

When you installing AGP card, please make sure the following notice is fully understood and practiced. If your AGP card has "AGP 4X/8X(1.5V) notch"(show below), please make sure your AGP card is AGP 4X/8X(1.5V).

AGP 4X/8X notch

Caution: AGP 2X(3.3V) card is not supported by SiS® 748. You might exper ience system unable to boot up normally. Please insert an AGP 4X/8X(1.5V) card

Example 1: Diamond Vipper V770 golden finger is compatible with 2X/4X mode AGP slot. It can be switched between AGP 2X(3.3V) or 4X (1.5V) mode by adjusting the jumper. The factory default for this card is 2X(3.3V). The GA-7S748 Series (or any AGP 4X only) motherboards might not function properly, if you install this card without switching the jumper to 4X(1.5V) mode in it.

Example 2: Some ATi Rage 128 Pro graphics cards made by "Power Color", the graphics card manufacturer & some SiS 305 cards, their golden finger is compatible with 2X(3.3V)/4X(1.5V) mode AGP slot, but they support 2X(3.3V) only. The GA-7S748 Series (or any AGP 4X only) motherboards might not function properly, If you install thiscard in it.

Note : Although Gigabyte's AG32S(G) graphics card is based on ATi Rage 128 Pro chip, the design of AG32S(G) is compliance with AGP 4X(1.5V) specification. Therefore, AG32S (G) will work fine with SiS® 748 based motherboards.

M The author assumes no responsibility for any errors

or omissions that may appear in this document nor does the author make a commitment to update the information contained herein.

M Third-party brands and names are the property of

their respective owners.

M Please do not remove any labels on motherboard, this

may void the warranty of this motherboard.

M Due to rapid change in technology, some of the

specifications might be out of date before publication of this booklet.

Ausschlager Weg 41, 1F, 20537 Hamburg, Germany

( description of the apparatus, system, installation to which it refers)

(reference to the specification under which conformity is declared)

in accordance with 89/336 EEC-EMC Directiv e

o EN 55011 Limits and methods of measurement

o EN 55013

o EN 55014 Limits and methods of measurement

o EN 55015 Limits and methods of measurement

o EN 55020

T EN 55022 Limits and methods of measurement

o DIN VDE 0855 o part 10 o part 12

T CE marking

o EN 60065

o EN 60335

of radio disturbance characteristics of industrial,scientific and medical (ISM high frequency equipment

Limits and methods of measurement of radio disturbance characteristics of broadcast receivers and associated equipment

of radio disturbance characteristics of household electrical appliances, portable tools and similar electrical apparatus

of radio disturbance characteristics of fluorescent lamps and luminaries

Immunity from radio interference of broadcast receivers and associated equipment

of radio disturbance characteristics of information technology equipment

Cabled distribution systems; Equipment for receiving and/or distribution from sound and television signals

The manufacturer also declares the conformity of above mentioned product with the actual required safety standards in accordance with LVD 73/23 EEC

Safety requirements for mains operated electronic and related apparatus for household and similar general use

Safety of household and similar electrical appliances

(Stamp)

Declaration of Conformity

We, Manufacturer/Importer

(full address)

G.B.T. Technology Träding GMbH

declare that the product

Mother Board

GA-7S748

is in conformity with

o EN 61000-3-2*

T EN 60555-2

o EN 61000-3-3* Disturbances in supply systems cause

T EN 60555-3

T EN 50081-1

T EN 50082-1

o EN 55081-2

o EN 55082-2

o ENV 55104

o EN50091-2

(EC conformity marking)

o EN 60950

o EN 50091-1

Manufacturer/Importer

Date : September 15, 2003

Disturbances in supply systems cause by household appliances and similar electrical equipment “Harmonics”

by household appliances and similar electrical equipment “V oltage fluctuations”

Generic em ission standard Part 1: Residual com mercial and light industry

Generic immunity standard Part 1: Residual com mercial and light industry

Generic em ission standard Part 2: Industrial environment

lmmunity requirements for household appliances tools and similar apparatus

EMC requirements for uninterruptible power systems (UPS)

Safety for information technology equipment including electrical bussiness equipment

General and Safety requirments for uninterruptible power systems (UPS)

Signature:

Name:

Timmy Huang

DECLARATION OF CONFORMITY

Per FCC Part 2 Section 2.1077(a)

Responsible PartName:

Address:

Phone/Fax No:

hereby declares that the product

Produ ct Name:

Model Nu mber:

Conforms to the following specifications:

FCC Part 15, Subpart B, Section 15.107(a) and Section 15.109 (a),Class B Digital D evice

Supplementary Information:

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 and (2) this device must accept any inference received, including that may cause undes ired operation.

Representative Person’s Name:

Signature:

G.B.T. INC. (U .S.A.) 17358 Railroad Street

City of Indu stry, CA 91748 (818) 854-9338/ (818) 854-9339

Motherboard

GA-7S748

ERIC LU

Eric Lu

Date:

September 15, 2003

GA-7S748 Series

AMD Socket A Processor Motherboard

USER'S MANUAL

AMD Athlon™/ Athlon™ XP / Duron™ Socket A Processor Motherboard

Rev. 1003

12ME-7S748-1003

English

Item Checklist .....................................................................................4

WARNING! ..........................................................................................4

Chapter 1 Introduction .........................................................................5

Chapter 2 Hardware I nstallation Process..............................................9

Table of Content

Features Summary ......................................................................................... 5

GA-7S748 Series Motherboard Layout......................................................... 7

Block Diagram ................................................................................................ 8

Step 1: Install the Central Processing Unit (CPU) ...................................... 10

Step1-1: CPU Speed Setup.......................................................................................10

Step1-2: CPU Installation .......................................................................................... 11

Step1-3: CPU Heat Sink Installation ..........................................................................12

Step 2: Install memory modules ..................................................................13

Step 3: Install expansion cards.................................................................... 15

Step 4: Connect ribbon cables, cabinet wires and power supply.............16

Step 4-1: I/O Back Panel Introduction .......................................................................16

Step 4-2: Connectors Introduction .............................................................................18

Chapter 3 BIOS Setup.......................................................................29

The M ain Menu (For example: BIOS Ver. F3c)......................................... 30

Standard CMOS Features ........................................................................... 32

Advanced BIOS Features............................................................................. 35

Integrated Peripherals .................................................................................37

Power Management Setup.......................................................................... 41

- 2 -GA-7S748 Series Motherboard

PnP/PCI Configurations................................................................................ 43

PC Health Status ........................................................................................... 44

Frequency/Voltage Control........................................................................... 45

Top P erformance.......................................................................................... 47

Load Fail-Safe D efaults................................................................................ 48

Load Optimized D efaults.............................................................................. 49

Set Supervisor/User Password..................................................................... 50

Save & Exit Setup .......................................................................................... 51

Exit Without Saving....................................................................................... 52

Chapter 4 Technical Reference..........................................................55

@ BIOSTM Introduction.................................................................................. 55

Easy T uneTM 4 Introduction.......................................................................... 56

Flash BIOS Method Introduction................................................................. 57

2-/4-/6-Channel Audio Function I ntroduction ............................................. 61

Jack-S ensing Introduction ........................................................................... 67

Xpress Recovery Introduction ...................................................................... 69

English

Chapter 5 Appendix ..........................................................................73

- 3 -

Table of Content

Item Checklist

English

Computer motherboards and expansion cards contain very delicate Integrated Circuit (IC) chips. To protect them against damage from static electricity, you should follow some precautions whenever you work on your computer.

The GA-7S748 or GA-7S748-L motherboard 2 Port USB Cable x 1 IDE cable x 2 / Floppy cable x 1 4 Port USB Cable x 1 CD for motherboard drive r & utility SPDIF-KIT x 1 (SPDIF O ut KIT) GA-7S748 Series user's manual IEEE 1394 Cable x1 I/O Shield Audio Combo Kit x 1 Quick PC Installation Guide (SURROUND- Kit + SPDIF Out KIT) RAID Manual Motherboard Settings Label GC-SATA Card (Optional) SATA RAID Manual (Manua l; SATA cable x1; Power cable x 1) SATA cable x 1

WARNING!

1. Unplug your computer when working on the inside.

2. Use a grounded wrist strap before handling computer components. If you do not have one, touch both of your hands to a safely grounded object or to a metal object, such as the power supply case.

3. Hold components by the edges and try not touch the IC chips, leads or connectors, or other components.

4. Place components on a grounded antistatic pad or on the bag that came with the components whenever the components are separated from the system.

5. Ensure that the ATX power supply is switched off before you plug in or remove the ATX power connector on the motherboard.

Installing the motherboard to the chassis…

If the motherboard has mounting holes, but they don’t line up with the holes on the base and there are no slots to attach the spacers, do not become alarmed you can still attach the spacers to the mounting holes. Just cut the bottom portion of the spacers (the spacer may be a little hard to cut off, so be careful of your hands). In this way you can still attach the motherboard to the base without worrying about short circuits. Sometimes you may need to use the plastic springs to isolate the screw from the motherboard PCB surface, because the circuit wire may be near by the hole. Be careful, don’t let the screw contact any printed circuit write or parts on the PCB that are near the fixing hole, otherwise it may damage the board or cause board malfunctioning.

- 4 -GA-7S748 Series Motherboard

Chapter 1 Introduction

Features Summary

Form Factor — 30.5cm x 20.0cm ATX size form factor, 4 layers PCB. Motherboard — GA-7S748 Series Motherboard:

GA-7S748 and GA-7S748-L

CPU — Socket A processor

AMD AthlonTM/AthlonTM XP/ Duron 128K L1 & 256K/64K L2 cache on die 200/266/333/400 MHz FSB and DDR bus speeds

— Supports 1.4GHz and faster

Chipset — SiS 748 Host/Memory controller

— SiS 963L MuTIOL Media I/O

Memory — 3 184-pin DDR sockets

— Supports DDR DRAM DDR266/DDR333/DDR400 — Supports up to 2 un-buffer DDR400 DIMM — Supports up to 3.0GB DDR (Max) — Supports only 2.5V DDR DIMM

I/O Control — IT8705 Slots — 1 AGP slot supports 8X/4X mode

— 5 PCI slots supports 33MHz & PCI 2.2 compliant

On-Board IDE — 2 IDE controllers provides IDE HDD/CD-ROM (IDE1, IDE2) with

PIO, Bus Master (Ultra DMA33/ATA66/ATA100/ATA133) operation modes.

On-Board Peripherals — 1 Floppy port supports 2 FDD with 360K, 720K,1.2M, 1.44M

and 2.88M bytes.

— 1 Parallel port supports Normal/EPP/ECP mode — 2 Serial port (COMA & COMB) — 6 x USB 2.0/1.1 (2 by cable)

Hardware Monitor — CPU/System Fan Revolution detect

— CPU temperature detect — System Voltage Detect — Thermal shutdown function

(K7)

English

- 5 -

to be continued......

Introduction

On-Board LAN (*

On-Board Sound — Realt ek ALC655 CODEC

English

PS/2 Connector — PS/2 Keyboard interface and PS/2 Mouse interface BIOS — Licensed Award BI OS

Additional Features — PS/2 Keyboard power on by password,PS/2 Mouse power on

Overclocking — Over Voltage (CPU/AGP/DDR) b y BIOS

)

— Bui ld in RTL8201BL Chipset — 1 RJ45 port

— Support Jack-Sensing — Line Out / 2 front speaker — Line I n / 2 rear speaker(by s/w switch) — Mic I n / center& subwoof er(by s/w switch) — SPDIF Out /SPDIF I n — CD I n / AUX In / Game port

— Supports Q-Flash

— Ext ernal Modem wake up — STR(Suspend-To-RAM) — AC Recovery — Pol y fuse for keyboard over-current protection — USB KB/Mouse wake up from S3 — Support s @BIOS — Supports EasyTune 4

— Over Clock (CPU/DDR) by BIOS

Please set the CPU host frequency in accordance with your processor's specifications. We don't recommend you to set the system bus frequency over the CPU's specification because these specific bus frequencies are not the standard specifications for CPU, chipset and most of the peripherals. Whether your system can run under these specific bus frequencies properly will depend on your hardware configurations, including CPU, Chipsets, Memory, Cards… .etc.

(*)

For GA-7S748-L only.

- 6 -GA-7S748 Series Motherboard

GA-7S748 Series Motherbo ard L ayout

English

KB_MS

USB

COMA

COMB

USB_LAN(*

AUDIO

CODEC

CD_IN

RTL8201BL(*

LPT

)

F_AUDIO

SUR_CEN

)

AUX_IN

SOCKET A

SiS 748

CPU_FAN

AGP

PCI1

PCI2

PCI3

PCI4

GA-7S748

DDR1

DDR2

SW1

963L

RAM_LED

ATX

FDD

DDR3

BATTERY

SYS_FAN

)

(

IT8 705

GAME

(*)

For GA-7S748-L only.

BIOS

SPDIF_IO

PWR_LED

- 7 -

PCI5

CLR_PWD

F_PANEL

IDE1

IDE2

F_USB

Introduction

Block Di agram

English

PCICLK

(33MHz)

AGPCLK (66MHz)

5 PCI

AGP 4X/8X

)

RJ45(*

RTL8201BL(*

AC97 Link

AC97

CODEC

MIC

LINE-IN

LINE-OUT

)

Socket A

CPU

SiS 748

SiS 963L

6 USB

Ports

CPUCLK+/- (100/133/166/200 MHz)

System Bus

266/333/400 MHz

ZCLK (66/133MHz)

HCLK+/- (100/133/166/200MHz)

48 MHz

LPC BUS

ATA33/66/100/133

IDE Channels

66/133 MHz

33 MHz

14.318 MHz

IT8705

24 MHz

33 MHz

DDR

BIOS

Game Port

Floppy LPT Port

PS/2

KB/Mouse

COM Ports

PCICLK (33MHz)

USBCLK (48MHz)

14.318 MHz 33 MHz

(*)

For GA-7S748-L only.

CLK GEN

ZCLK (66/133MHz) CPUCLK+/- (100/133/166/200M Hz) AGPCLK (66MHz) HCLK+/- (100/133/166/200MHz)

- 8 -GA-7S748 Series Motherboard

Chapter 2 Hardware Installation Pro cess

To set up your computer, you must complete the following steps:

Step 1- Set system Switch (SW1) Step 2- Install the Central Processing Unit (CPU) Step 3- Install memory modules Step 4- Install expansion cards Step 5- Connect ribbon cables, cabinet wires, and power supply

English

Step 2

Step 5

Step 4

Congratulations you have accomplished the hardware installation! Turn on the power supply or connect the power cable to the power outlet. Continue with the BIOS/software installation.

Step 3

Step 5

Step 1

Step 5

- 9 - Hardware Installation Process

Step 1: Install the Central Processing Unit (CPU)

Step1-1: CPU Speed Setup

English

The system bus frequency can be switched at 100/133/166/200MHz by adjusting system switch (SW1). (The internal frequency depend on CPU.)

SW1

SW1 CPU CLOCK

100MHz Auto

1 ON OFF

O: ON / X :OFF

Auto : Support FSB 266/333/4 00 MHz CPU 100MHz : Fix FSB 200MHz CPU If you want to use a CPU with 200MHz FSB, please

set SW1 to 100MHz.

- 10 -GA-7S748 Series Motherboard

Step1-2: CPU Installation

Before installing the processor, adhere to the following warning:

1.Please make sure the CPU type is supported by the motherboard.

2.If you do not match the CPU socket Pin 1 and CPU cut edge well, it will cause improper installation. Please change the insert orientation.

CPU Top View CPU Bottom View

English

Socket Actuation Lever

1. Pull up the CPU socket lever and up to 90-degree angle.

Pin1 indicator

2. Locate Pin 1 in the socket and look for a (golden) cut edge on the CPU upper corner. Then insert the CPU into the socket.

- 11 - Hardware Installation Process

Step1-3: CPU Heat Sink Installation

English

Before installing the CPU Heat Sink , adhere to the following warning:

1.Please use AMD approved cooling fan.

2.We recommend you to apply the thermal paste to provide better heat conduction between your CPU and Cooling Fan.

3.Make sure the CPU fan power cable is plugged in to the CPU fan connector, this completes the installation.

Please refer to CPU cooling fan user's manual for more detail installation procedure.

1. Press down the CPU socket lever and finish CPU installation.

3. Fasten the heatsink supporting-base onto the CPU socket on the mainboard.

2. Use qualified fan approved by AMD.

4. Make sure the CPU fan is plugged to the CPU fan connector, than install complete.

- 12 -GA-7S748 Series Motherboard

Step 2: Install memory modules

Before installing the memory modules, adhere to the following warning:

1.When RAM_LED is ON, do not install / remove DIMM from socket.

2.Please note that the DIMM module can only fit in one direction due to the one notch. Wrong orientation will cause improper installation. Please change the insert orientation.

The motherboard has 3 dual inline memory module(DIMM) sockets. The BIOS will automatically detects memory type and size. To install the memory module, just push it vertically into the DIMM Slot. The DIMM module can only fit in one direction due to the notch. Memory size can vary between sockets.

Notch

DDR

English

Support Unbuffered DDR DIMM Sizes type: 64 Mbit (2Mx8x4 banks) 64 Mbit (1Mx16x4 banks) 128 Mbit(4Mx8x4 banks) 128 Mbit(2Mx16x4 banks) 256 Mbit(8Mx8x4 banks) 256 Mbit(4Mx16x4 banks) 512 Mbit(16Mx8x4 banks) 512 Mbit(8Mx16x4 banks)

- 13 - Hardware Installation Process

1. The DIMM slot has a no tch, so the DIMM memory

English

2. Insert the DIMM memory module vertically into

3. Close the plastic clip at both edges of the DIMM

DDR Introduction

performance and cost-effective solution that allows easy adoption for memory vendors, OEMs, and system integrators.

architecture, yet make the awesome advances in solving the system performance bottleneck by doubling the memory bandwidth. Nowadays, with the highest bandwidth of 3.2GB/s of DDR400 memory and complete line of DDR400/333/266/200 memory solutions, DDR memory is the best choice for building high performance and low latency DRAM subsystem that are suitable for servers, workstations, and full range of desktop PCs.

module can only fit in one direction.

the DIMM slot. Then push it down.

slots to lock the DIMM module. Reverse the installation steps when you wish to remove the DIMM module.

Established on the existing SDRAM infrastructure, DDR (Double Data Rate) memory is a high

DDR memory is a great evolutionary solution for the PC industry that builds on the existing SDRAM

- 14 -GA-7S748 Series Motherboard

Step 3: In stall expan sion cards

1. Read the related expansion card's instruction document before install the expansion card into

the computer.

2. Remove your computer's chassis cover, necessary screws and slot bracket from the computer.

3. Press the expansion card firmly into expansion slot in motherboard.

4. Be sure the metal contacts on the card are indeed seated in the slot.

5. Replace the screw to secure the slot bracket of the expansion card.

6. Replace your computer's chassis cover.

7. Power on the computer, if necessary, setup BIOS utility of expansion card from BIOS.

8. Install related driver from the operating system.

Please carefully pull out the small whitedrawable bar at the end of the AGP slot when you try to install/ Uninstall the AGP card. Please

AGP Card

align the AGP card to the onboard AGP slot and press firmly down on the slot .Make sure your AGP card is locked by the small white- drawable bar.

English

- 15 - Hardware Installation Process

Step 4: Con nect ribbon cables, cabinet wires and power supply

English

Step 4-1: I/O Back Panel Introduction

w x

u PS/2 Keyboard and PS/2 Mouse Connector

PS/2 Mouse Connector (6 pin Female)

PS/2 Keyboard Connector (6 pin Female)

v/x USB / LAN Connector

USB 3 USB 2

LAN (*

USB 1 USB 0

This connector supports standard PS/2 keyboard and PS/2 mouse.

Before you conn ect your device (s) into USB connector(s), please make sure your device(s)

)

such as USB keyboard,mouse, scanner, zip, speaker...etc. Have a st andard USB interface. Also make sure your OS supports USB controller. If your OS does not support USB controller, please contact OS vendor for possible patch or driver upgrade. For more information please contact your OS or device(s) vendors.

(*)

For GA-7S748-L only.

- 16 -GA-7S748 Series Motherboard

wParallel Port and Serial Ports (COMA / COMB)

English

Parallel Port (25 pin Female)

COMA

Serial Port (9 pin Male)

y Audio Connectors

Line In(Rear Speaker)

Line Out(Front Speaker)

MIC In(Center and Subwoofer)

This connector supports 2 standard COM ports and 1 Parallel port. Device like printer c an be connected to Parallel port; mouse and modem etc. can be connected to Serial ports.

COMB

After install onboard audio driver, you may connect speaker to Line Out jack, microphone to MIC In jack. Device like CD-ROM,walkman etc. can be connected to Line-In jack.

Please note:

You are able to use 2-/4-/6-channel audio feature by S/W selection. If you want to enable 6-cha nnel function, you have 2 choose for hardware connection.

Method1:

Connect "Front Speaker" to "Line Out" Connect "Rear Speaker" to "Line In" Connect "Center and Subwoofer" to "MIC Out ".

Method2:

You ca n refer to page 24 , and contact your nearest dealer for optional SUR_CEN cable.

If you want the detail information for 2-/4-/6-channel audio setup installation, please refer to page 61.

- 17 - Hardware Installation Process

Step 4-2: Connectors Introduction

English

10 13

7 914

1) CPU_FAN 10)F_AUDIO

2) SYS_FAN 11) SUR_CEN

3) ATX 12)CD_IN

4) IDE1/IDE2 13)AUX_IN

5) FDD 14)SPDIF_IO

6) RAM_LED 15)F_ USB

7) PWR_LED 16)GAME

8) BATTERY 17)CLR_PWD

9) F_PANEL

2 4

- 18 -GA-7S748 Series Motherboard

1) CPU_FAN (CPU FAN Connector)

Please note, a proper installation of the CPU cooler is essential to prevent the CPU from running under abnormal condition or damaged by overheating.The CPU fan connector supports Max. current up to 600 mA.

Pin No. Definition

1 GND 2 +12V 3 Sense

2) SYS_FAN (System FAN Connector)

This connector allows you to link with the cooling fan on the system case to lower the system temperature.

English

Pin No. Definition

1 GND

- 19 - Hardware Installation Process

2 +12V 3 Sense

3) ATX (ATX Power)

AC power cord should only be connected to your power supply unit after ATX power cable and other related devices are firmly connected to the mainboard.

English

4) IDE1/ IDE2 (IDE1/IDE2 Connector)

Pin No. Definition

1 3.3V

2 3.3V

3 GND 4 V CC 5 GND 6 V CC 7 GND 8 Power Good 9 5V SB(stand by +5V) 10 +12V 11 3.3V 12 -12V 13 GND 14 PS_ON (softOn/Off)

15 GND 16 GND 17 GND 18 -5V 19 VCC 20 VCC

Please connect first harddisk to IDE1 and connect CDROM to IDE2. The red stripe of the ribbon cable must be the same side with the Pin1.

139

IDE1

IDE2

- 20 -GA-7S748 Series Motherboard

5) FDD (Floppy Connector)

Please connect the floppy drive ribbon cables to FDD. It supports 360K,720K,1.2M,1.44M and

2.88Mbytes floppy disk types. The red stripe of the ribbon cable must be the same side with the Pin1.

English

6) RAM_LED

Do not remove m emory m odules while RAM LED is on. It might cause short or other unexpected damages due to the stand by voltage. Remove memory modules only when AC Power cord is disconnected.

+ -

- 21 - Hardware Installation Process

7) PWR_LED

English

8) BATTERY

PWR_LED is connect with the system power indicator to indicate whether the system is on/off. It will blink when the system enters suspend mode. If you use dual color LED, power LED will turn to another color.

Pin No. Definition

1 MPD+ 2 MPD3 MPD-

CAUTION

v Danger of explosion if battery is incorrectly

replaced.

v Replace only with the same or equivalent

type recommended by the manufacturer.

v Dispose of used batteries according to the

manufacturer's instructions.

If you want to erase CMOS...

1.Turn OFF the computer and unplug the power cord.

2.Remove the battery, wait for 30 second.

3.Re-install the battery.

4.Plug the power cord and turn ON the computer.

- 22 -GA-7S748 Series Motherboard

9) F_PANEL (2x10 pins connector)

Please conne ct the power LED, PC peaker, reset switch and power switch etc of your chassis front panel to the F_PANEL connector according to the pin assignment above.

English

Soft Power

MSG-

MSG+

HD+

HD-

Connector

Reset Switch

PW+

RES-

RES+

PW-

SPEAK+

Messa ge LED/Power / Sleep LED

IDE Hard Disk Active LED

HD (IDE Hard Disk Ac tive LED) Pin 1: LED anode(+) (Blue) Pin 2: LED cathode(-) SPEAK (Speaker Connector) Pin 1: VCC(+) (Amber) Pin 2- Pin 3: NC

Pin 4: Data(-) RES (Reset Switch) Open: Normal Operation (Green) Close: Reset Hardware System PW (Soft Power Connector) Open: Normal Operation (Red) Close: Power On/Of f MSG(Message LED/Power/ Pin 1: LED anode(+) Sleep LED)(Yellow) Pin 2: LED cathode(-) NC( Purple) NC

Speaker Connector

SPEAK-

- 23 - Hardware Installation Process

10) F_AUDIO (F_AUDIO Connector)

English

11) SUR_CEN

If you want to use Front Audio connector, you must remove 5-6, 9-10 Jumper . In order to utilize the front audio header, your chassis must have front audio connector. Also please make sure the pin assigment on the cable is the same as the pin assigment on the MB header. To find out if the chassis you are buying support front audio connector, please contact your dealer.Please note, you can have thealternative of using front audio connector or of using rear audio connector to play sound.

Pin No. Definition

1 MIC

Please contact your nearest dealer for optional SUR_CEN cable.

2 GND 3 REF 4 POWER 5 FrontAudio(R) 6 RearAudio(R) 7 Reserved 8 No Pin 9 FrontAudio (L) 10 RearAudio(L)

Pin No. Definition

1 SUR OUTL

- 24 -GA-7S748 Series Motherboard

2 SUR OUTR 3 GND 4 No Pin 5 CENTER_OUT 6 BASS_OUT

12) CD_IN (CD IN Conn ector)

Connect CD-ROM or DVD-ROM a udio out to the connector.

English

13) AUX_IN (AUX In Connector)

Connect other device(such as PCI TV Tunner audio out)to the connector.

Pin No. Definition

1 CD-L 2 GND 3 GND 4 CD_R

Pin No. Definition

1 AUX-L 2 GND 3 GND 4 AUX_R

- 25 - Hardware Installation Process

+ 67 hidden pages