Gigabyte GA-8IGMK User Manual

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

Do not use AGP 2X card (3.3V) in this motherboard. It will
burn and damage the motherboard due to Intel® 845 (E/ G)/
Intel® 850(E) chipset can't support AGP 2X(3.3V).

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). If you install this card in
GA -8IGMK (or any AGP 4X only) motherboards without

switching the jumper to 4X mode (1.5V), it will burn the
motherboard.

Example 2: Some AT i Rage 128 Pro graphics cards made by
“Power Color”, the graphics card manufacturer & some SiS 305
cards, their golden finger is compatible with 2X/4X mode AGP
slot, but they support 2X(3.3V) only. If you install this card in

GA -8IGMK (or any AGP 4X only) motherboards, it will burn the
motherboard.

Note : A lthough Gigabyte's AG32S(G) graphics card is based on
ATi Rage 128 Pro chip, the design of AG32S(G) is compliance
with A GP 4X (1.5V) specification. Therefore, AG32S (G)will work

fine with Intel® 845(E/G) / 850(E) 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 up
date 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specifications might be out of date before publication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 whic h it refers)

(reference to the specification under which conformity is declared)

in accordance with 89/336 EEC-EMC Directive

o EN 55011 Limits a nd methods of measurement

o EN 55013

o EN 55014 Limits a nd methods of measurement

o EN 55015 Limits a nd methods of measurement

o EN 55020

T EN 55022 Limits a nd methods of measurement

o DIN VDE 0855
o part 10
o part 12

T CE marking

o EN 60065

o EN 60335

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

Limits a nd methods of measurement
of radio d isturbance characteristics of
broadcast receive rs and associated
equipment

of radio d isturbance characteristics of
household electrical appliances,
portable tools and similar electrical
appa ratus

of radio d isturbance characteristics of
fluorescent lamp s and luminaries

Immuni ty from radio interference of
broadcast receive rs and associated
equipment

of radio d isturbance characteristics of
information tech nology equipment

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

The manufacturer also declares the c onformity of above mentioned product
with the a ctual required safety standards in accordance with LVD 73/23 EEC

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

Safety of house hold and similar
electrical appliances

(S ta mp )

Declaration of Conformity

We, Manufacturer/Importer

(full address)

G.B.T. Technology Träding GMbH

declar e that the product

Mother Board

GA-8 IGMK

is in conformity with

o EN 61000-3-2*

T EN 60555-2

o EN 61000-3-3* Disturban ces in supply systems cause

T EN 60555-3

T EN 50081-1 Generic emission standard Part 1:

T EN 50082-1

o EN 55081-2

o EN 55082-2

o ENV 55104

o EN50091-2

(EC co nformity marking)

o EN 60950

o EN 50091-1

Manufacturer/Impor ter

Date : Jun e 14, 2002

Disturban ces in supply systems cause
by household appliances and similar
electrical equipment “Ha rmonics”

by household appliances and similar
electri cal equipment “Voltage fluctuations”

Residual commercial and light industry

Generic immunity standard Part 1:
Residual commercial and light industry

Generic emission standard Part 2:
Industrial environment

Generic emission standard Part 2:
Industrial environment

lmmunity requirements for household
appliances tools an d similar apparatus

EMC requirements for uninterruptible
power systems (UPS)

Signa ture:

Na me:

Timmy Huang

Timmy Huang

DECLARATION OF CONFORMITY

Pe r FCC Part 2 Section 2.1077(a)

Re sponsib le Party Name:

Ad dress:

Phone/Fax No:

hereby declares that the product

Pr oduct Name:

M odel Number:

Conform s to the following specifications:

FCC Part 15, Subpart B, Section 15.107(a) and Se ction 15.109
(a),Class B Digital Device

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 undesired operation.

Representative Person’s Name:

Signature:

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

City of Industry, CA 91 748
[phone]/ [phone]

Motherboard
GA-8 IGMK

ERIC LU

Eric Lu

Dat e:

Ju ne 14,2002

GA-8IGMK

P4 Titan-DDR Motherboard

USER’S MANUAL

Pentium®4 Processor Motherboard

Rev. 1001

12ME-8IGMK-1001

English

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

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

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

Chapter 2 Hardware Installation Process ............................................8

Table of Content

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

GA -8IGMK Motherboard Layout......................................................................... 7

Step 1: Install the Central Processing Unit (CPU)........................................... 9

Step1-1 : CPU Installation.............................................................................. 9

Step1-2 : CPU Heat Sink Installation.............................................................. 10

Step 2: Install memory modules .......................................................................11

Step 3: Install expansion cards.........................................................................12

Step 4: Connect ribbon cables, cabinet wires, and power supply.............13

Step4-1 : I/O Back Panel Introduction ............................................................ 13

Step4-2 : Connectors Introduction ................................................................. 15

Chapter 3 BIOS Setup ....................................................................22

T he Main Menu (For example: BIOS Ver. :F1)..............................................23

Standard CMOS Features.................................................................................25

A dvanced BIOS Features...................................................................................28

Integrated Peripherals .......................................................................................30

- 2 -GA-8IGMK Motherboard

Power Management Setup................................................................................34

PnP/PCI Configurations......................................................................................36

PC Health Status..................................................................................................37

Frequency/Voltage Control ................................................................................38

Top Performance ................................................................................................40

Load Fail-Safe Defaults......................................................................................41

Load Optimized Defaults....................................................................................42

Set Superv isor/User Password..........................................................................43

Sav e & Exit Setup.................................................................................................44

Exit Without Sav ing.............................................................................................45

Chapter 4 Technical Reference........................................................46

Block Diagram .....................................................................................................46

Q-Flash Introduction...........................................................................................47

@ BIOS Introduction ...........................................................................................49

Easy Tune 4TM Introduction ...............................................................................50

English

Chapter 5 Appendix........................................................................51

- 3 -

Table of Content

Item Checklist

þ The GA-8IGMK motherboard þ I/O Shield

English

þ IDE cable x 1/ Floppy cable x 1
þ CD for motherboard driver & utility (IUCD)
þ GA-8IGMK user’s manual

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.

W ARNING!

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-8IGMK Motherboard

Chapter 1 Introduction

Features Summary

Form Factor — 21.0cm x 24.4cm Micro ATX size form factor, 4 layers PCB.
CPU — Socket 478 for Intel® Micro FC-PGA2 Pentium® 4 processor

— Support Intel® Pentium® 4 (Northwood, 0.13 m) processor
— Intel Pentium®4 400/533MHz FSB
— 2nd cache depends on CPU

Chipset — Chipset 82845G HOST/AGP/Controller

— ICH4 I/O Controller Hub

Memory — 2 184-pin DDR DIMM sockets

— Supports PC1600 DDR or PC2100 DDR SDRAM
— Supports up to 2GB DRAM (Max)
— Supports only 2.5V DDR SDRAM

I/O Control — ITE8702
Slots — 1 AGP slot 4X mode (1.5V) device support

— 3 PCI slot supports 33MHz & PCI 2.2 compliant

On-Board IDE — 2 IDE controller on the Intel ICH4 PCI chipset

provides IDE HDD/CD-ROM with PIO, Bus Master (Ultra
DMA33/ATA66/ATA100) operation modes.

— Can connect up to four IDE devices

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
— 1 Serial ports (COMA), 1 VGA port , COMB on Board
— 6 x USB 2.0/1.1 (2x Rear, 4 Front by cable)
— 1 Fronet Audio connector
— 1 IrDA connector for IR

On-Board VGA — Built in Intel 845G Chipset
On-Board Sound — Realtek ALC650 CODEC

— Line Out / 2 front speaker
— Line In / 2 rear speaker(by s/w switch)
— Mic In / center& woofer(by s/w switch)
— SPDIF out : by s/w switch
— CD In / AUX In / Game port

to be continued......

English

- 5 -

Introduction

On-Board LAN — Built in Intel 82562ET Chipset
PS/2 Connector — PS/2 Keyboard interface and PS/2 Mouse interace
BIOS — Licensed AWARD BIOS, 2M bit FWH

English

Additional Features — Internal / External Modem wake up

— Support Q-Flash

— PS/2 Keyboard password power on
— PS/2 Mouse power on
— AC Recovery
— USB KB/Mouse wake up from S3,S1
— Poly fuse for keyboard,USB,game port over-current protection
— Supports @BIOS
— Supports EasyTune4

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,SDRAM,Cards… .etc.

- 6 -GA-8IGMK Motherboard

GA-8IGMK Motherboard Layout

English

KB_MS

VGA

LINE_OUTMIC_IN

USB/

Intel 82562

COMA

LPT

GAME

LINE_IN

LAN

AC97

SUR_CEN

F_AUDIO

CD_IN

AUX_IN

SPDIF

ATX_12V

ITE8702

AGP

CI

SOCKET478

GA-8IGMK

COMB

CPU_FAN

ATX_POWER

IDE2

BATTERY

F_P ANEL

FDD

SYS _FAN

IDE1

CLR_COMS

RAM_LED

Intel 845G

DDR2

DDR1

PCI1

IR

PCI2

BIOS

F_USB3

Buzzer

F_USB4

PCI3

ICH4

PWR_LED

- 7 -

Introduction

Chapter 2 Hardware Installation Process

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

English

Step 1- Install the Central Processing Unit (CPU)
Step 2- Install memory modules
Step 3- Install expansion cards
Step 4- Connect ribbon cables, cabinet wires, and power supply
Step 5- Setup BIOS software
Step 6- Install supporting software tools

Step1

Step4

Step 2

Step 4

Step3

Step 4

- 8 -GA-8IGMK Motherboard

Step 1: Install the Central Processing Unit (CPU)

Step 1-1: CPU Installation

There are two types for CPU socket, please take note of installing.

Type 1 Type 2

English

Angling the
rod to 65

1. Angling the rod to 65-degree maybe feel a
kind of tight , and then continue pull the rod
to 90-degree when a noise “cough” made.

0

Pin1 indicator

3. CPU Top View

Socket
Actuation
Lever

2. Pull the rod to the 90-degree directly.

Pin1 indicator

4. 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.

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

- 9 - Hardw are Installation Process

Step1-2 : CPU Heat Sink Installation

English

1. Hook one end of the cooler
bracket to the CPU socket first.

M Please use Intel approved cooling fan.
M We recommend you to apply the thermal tape to provide better heat

conduction between your CPU and heatsink.
(The CPU cooling fan might stick to the CPU due to the hardening of the
thermal paste. During this condition if you try to remove the cooling fan, you
might pull the processor out of the CPU socket alone with the cooling fan, and
might damage the pr ocessor. To avoid this from happening, we suggest you to
either use thermal tape instead of therm al paste, or remove the cooling fan with
extreme caution.)

M Make sure the CPU fan power cable is plugged in to the CPU fan connector,

this completes the installation.

M Please refer to CPU heat sink user’s manual for more detail installation

procedure.

2. Hook the other end of the
cooler bracket to the CPU
socket.

- 10 -GA-8IGMK Motherboard

Step 2: Install memory modules

The motherboard has 2 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
socke ts. The DIMM module can only fit in one direction due to the notch. Memory size can vary between
sockets.

Support Unbuffered DDR DIMM Sizes type:
64 Mbit (2Mx8x4 banks) 64 Mbit (1Mx16x 4 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)

Notes: Double-sided x16 DDR memory devices are not support by Intel 845E/G chipset.

DDR

1. The DIMM sockets has a notch, so the DIMM
memory module can only fit in one direction.

2. Insert the DIMM memory module vertically into the
DIMM sockets. Then push it down.

3. Close the plastic clip at both edges of theDIMM
sockets to lock the DIMM module.
Reverse the installation steps when you wish to
remove the DIMM module.

English

M When STR/DIMM LED is ON, you do not install / remove DDR from socket.

- 11 - Hardw are Installation Process

DDR Introduction

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

English

SDRAM infrastructure, yet makes awesome advances in solving the system performance bottle neck by
doubling the memory bandwidth. DDR SDRAM will offer a superior solution and migration path from
existing SDRAM designs due to its av ailability, pricing and overall market support. PC2100 DDR
memory (DDR266) doubles the data rate through reading and writing at both the rising and falling edge of
the clock, achieving data bandwidth 2X greater than PC133 when running with the same DRAM clock
frequency. With peak bandwidth of 2.1GB per second, DDR memory enables system OEMs to build
high performance and low latency DRAM subsystems that are suitable for servers, workstations, high­end PC's and v alue desktop SMA sy stems. With a core voltage of only 2.5 Volts compared to
conventional SDRAM's 3.3 volts, DDR memory is a compelling solution for small form factor desktops
and notebook applications.

Step 3: Install expansion cards

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

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.

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

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

the computer.

AGP Card

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 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.

- 12 -GA-8IGMK Motherboard

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

Step4-1 : I/O Back Panel Introduction

English

u

v 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)

ØThis connector supports standard PS/2

keyboard and PS/2 mouse.

v Parallel Port ,VGA port and Serial Ports (COMA)

Parallel Port
(25 pin Female)

ØThis mainboard supports 1 standard COM port,

1 VGA port and 1 LPT port. Device like printer
can be connected to LPT port ; mouse and
modem etc can be connected to COM port.

y

COMA VGA
Serial Port
(9 pin Male)

VGA Port
(15 pin Female)

- 13 - Hardw are Installation Process

w Game /MIDI Ports

English

Joystick/ MIDI (15 pin Female)

ØThis connector supports joystick, MIDI keyboard and other

relate audio devices.

x Audio Connectors

Line Out
(Front
Speaker)

MIC In
(Center and Subw oofer)

Line In

(Rear S peaker)

y USB/LAN Connector

LAN
Connector

USB 1
USB 0

Ø After install onboard audio driver, you may connect

speaker to Line Out jack, micro phone 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. (Detail refer to Gigabyte web
http://www.gigabyte.com.tw.)
If you want to enable 6-channel function, you have 2
choose for hardware connection.

Method1:

Connect “Front Speaker” to “Line Out”
Connect “Rear Speaker” to “Line In”
Connect “Center and Subwooferr” to “MIC Out “.

Method2:

You can refer to page 19, and contact your nearest dealer
for optional SUR_CEN cable.

ØBefore you connect your device(s) into USB connector(s),

please make sure your device(s) such as USB keyboard,
mouse, scanner, zip,speaker..etc. Have a standard USB
interface. Also make sure your OS (Win 95 with USB
supplement, Win98, Windows 2000, Windows ME, Win
NT with SP 6) 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.

- 14 -GA-8IGMK Motherboard

Step4-2 : Connectors Introduction

English

12
11

16
20

14

13

1) CPU_FAN

2) SYS_FAN

3) ATX_12V

4) ATX_POWER

5) IDE1/IDE2

6) FDD

7) RAM_LED

8) PWR_LED

9) F_P ANEL

10) BATTERY

3 1 4

7

818 1715

11) F_AUDIO

12) SUR_CEN

13) CD_IN

14) AUX_IN

15) SPDIF

16) IR

17) F_USB3/F_USB4

18) COMB

19) CLR_CMOS

20) CI

6

2

5

19

10

9

- 15 - Hardw are Installation Process

1) CPU_FAN (CPU FAN Connector)

English

Sense

GND

+12V/Control

1

Ø 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.

2) SYS_FAN (System FAN Connector)

1

GND

+12V/Control

Sense

3) ATX_12V ( +12V Power Connector)

2 1

GND

+12V

4 3

GND
+12V

4) ATX_POWER (ATX Power)

1

3.3V

-12V

GND

PS-ON(Soft On/Off)

GND
GND

GND

-5V
VCC
VCC

20

3.3V

3.3V
GND
VCC
GND

VCC

GND

Power Good

5V SB (Stand by +5V)

+12V

Ø This connector allows you to link with the

cooling fan on the system case to lower the
system temperature.

Ø This connector (ATX +12V) suppliesthe CPU

operation voltage (Vcore).
If this " ATX+ 12V connector" is not
connected, system cannot boot.

Ø 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.

- 16 -GA-8IGMK Motherboard

5) IDE1/ IDE2 (IDE1/IDE2 Connector)

Ø Important Notice:

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.

English

1

IDE1

6) FDD (Floppy Connector)

1

7) RAM_LED

-

+

1

IDE2

Ø Please connect the floppy drive ribbon cables

to FDD. It supports 360K,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.

Ø Do not remove memory modules while

DIMM LED is on. It might cause short or
other unexpected damages due to the

2.5V stand by voltage. Remove memory
modules only when STR function is
disabled by jumper and AC Power cord is
disconnected.

8) PWR_LED

1

MPD-

MPD-

MPD+

Ø 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.

- 17 - Hardw are Installation Process

9) F_P ANEL (2x10 pins connector)

English

MPD+

1

2 20
1 19

1

HD+

GN (Green Switch) Open: Normal Operation

GD (Green LED) Pin 1: LED anode(+)

HD (IDE Hard Disk Active LED) Pin 1: LED anode(+)

SPK (Speaker Connector) Pin 1: VCC(+)

RE (Reset Switch) Open: Normal Operation

PW (Soft Power Connector) Open: Normal Operation

MPD(Message LED/Power/ Pin 1: LED anode(+)
Sleep LED) Pin 2: LED cathode(-)
NC NC

PW-

PW+

MPD-

1

1

HD-

RST-

RST+

Close: Entering Green Mode

Pin 2: LED cathode(-)

Pin 2: LED cathode(-)

Pin 2- Pin 3: NC
Pin 4: Data(-)

Close: Reset Hardware System

Close: Power On/Off

NC

SPK+
1

1

GD+

GD-

1

GN+

SPK-

GN-

Ø Please connect the power LED, PC speaker,
reset switch and power switch etc of your chassis

10) BATTERY (Battery)

+

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.

- 18 -GA-8IGMK Motherboard

11) F_AUDIO (F_AUDIO Connector)

1

MIC

Front Audio (R)

Front Audio (L)

REF

Reserved

GND
POWER

Rear Audio (R)
Rear Audio (L)

Ø 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 su re 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.

English

12) SUR_CEN

LEF_OUT

SUR OUTR

12

13) CD_IN (CD IN)

1

CD-L
GND
CD-R

CD_IN

14) AUX_IN ( AUX In Connector)

1

Ø Please contact your nearest dealer for optional

SUR_CEN cable.

CENTER_OUT
GND

SUR OUTL

Ø Connect CD-ROM or DVD-ROM audio out

to the connector.

Ø Connect other device(such as PCI TV Tunner

audio out )to the connector.

GND

AUX-L

AUX-R

- 19 - Hardw are Installation Process

15) SPDIF (SPDIF)

English

Ø The SPDIF output is capable of providing digital

1

VCC
SPDIF OUT
GND

audio to external speakers or com pressed AC3
data to an external Dolby Digital Decoder. Use
this feature only when your stereo system has
digital input function.

16)IR

IR Data Output

GND

VCC(+5V)

IR Data Input

1

17) F_USB3/FUSB_4
(Front USB Connector)

USB Dy+

Power

USB Dy-

1

Power

USB Dx-

USB Dx+

18) COM B

NCTSB-

NSINB

NDTRB-

NDSRB-

USB Over

GND

GND

NC

Current

Ø Be careful with the polarity of the IR

connectorwhile you connect the IR. Please
contact you nearest dealer for optional IR
device.

Ø Be careful with the polarity of the front panel

USB connector. Check the pin assignment
while you connect the front panel USB cable.
Please contact your nearest dealer for optional
front panel cable.

Ø Be careful with the polarity of the COMB

connector. Check the pin assignment
while you connect the COMB cable.
Please contact your nearest dealer for optional
COMB cable.

1

GND

NDCDB-

NSOUTB

NRIB-

NRTSB-

- 20 -GA-8IGMK Motherboard

19) CLR_CMOS (Clear CMOS)

1

1-2 close: Clear CMOS

1

2-3 close: Normal operation

Ø You may clear the CMOS data to its default

values by thisjumper.
Default doesn’t include the “Shunter” to prevent

from improp er use this jumper. To clear CMOS,
temporarily short 1-2 pin.

English

20) CI (CASE OPEN)

Signal

GND

1

Ø This 2 pin connector allows your system to

enabl e or disable the “case open” item in BIOS
if the system case begin remove.

- 21 - Hardw are Installation Process