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the specifications might be out of date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.
Declaration of Conformity
We, Manufacturer/Importer
(full address)
G.B.T. Technology Träding GMbH
Ausschla ger Weg 41, 1F, 20537 Hamburg, Germany
declare that the product
( description of the apparatus, system, installation to which it refers)
Mother Board
GA-8SIMLH (Rev 4.0)
is in conformity with
(reference to the specification under which con formity is declared)
in accordance with 89/336 EEC-EMC Directive
o EN 55011 Limits and methods of measurement
of radio disturbance characteristics of
industrial,scientific and medical (ISM
high frequency equipment
o EN 61000-3-2*
T EN 60555-2
Disturbances in supply systems cause
by household appliances and similar
electrical equipment “Harmonics”
o EN 55013
Limits and methods of measurement
of radio disturbance characteristics of
broadcast receivers and associated
equipment
o EN 61000-3-3* Disturbances in supply systems cause
by household appliances and similar
electrical equipment “Voltage fluctuations”
o EN 55014 Limits and methods of measurement
of radio disturbance characteristics of
household electrical appliances,
portable tools and similar electrical
apparatus
T EN 50081-1
Generic emission standard Part 1:
Residual commercial and light industry
T EN 50082-1
Generic immunity standard Part 1:
Residual commercial and light industry
o EN 55015 Limits and methods of measurement
of radio disturbance characteristics of
fluorescent lamps and luminaries
Generic emission standard Part 2:
Industrial environment
o EN 55081-2
Immunity from radio interference of
broadcast receivers and associated
equipment
Generic emission standard Part 2:
Industrial environment
o EN 55082-2
T EN 55022 Limits and methods of measurement
of radio disturbance characteristics of
information technology equipment
lmmunity requirements for household
appliances tools and similar apparatus
o ENV 55104
Cabled distribution systems; Equipment
for receiving and/or distribution from
sound and television signals
EMC requirements for uninterruptible
power systems (UPS)
o EN50091-2
o EN 55020
o DIN VDE 0855
o part 10
o part 12
(EC conformity marking)
T CE marking
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
o EN 60950
o EN 60065
Safety of household and similar
electrical appliances
o EN 60335
Manufacturer/Importer
Signature:
Name:
(Stamp)
Date : October 24, 2003
T EN 60555-3
Timmy Huang
Timmy Huang
o EN 50091-1
FCC Part 15, Subpart B, Section 15.107(a) and Section 15.109(a),
Class B Digital Device
DECLARATION OF CONFORMITY
Per FCC Part 2 Section 2.1077(a)
Responsible Party Name:
Address:
Phone/Fax No:
hereby declares that the product
Product Name:
Conforms to the following specifications:
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:
Eric Lu
Supplementary Information:
Model Number:
17358 Railroad Street
City of Industry, CA 91748
G.B.T. INC. (U.S.A.)
(818) 854-9338/ (818) 854-9339
Motherboard
GA-8SIMLH (Rev 4.0)
Date:
ERIC LU
October 24, 2003
USER'S MANUAL
GA-8SIMLH-P(-P-C)
P4 Titan Series Motherboard
Pentium®4 Processor Motherboard
Rev. 4002
12ME-8SIMLHP-4002
- 2 -GA-8SIMLH-P(-P-C) Motherboard
English
Table of Content
Item Checklist ......................................................................................4
Chapter 1 Introduction .........................................................................5
Features Summary .......................................................................................... 5
GA-8SIMLH-P(-P-C) Motherboard Layout ..................................................... 7
Block Diagram .................................................................................................. 8
Chapter 2 Hardware Installation Process ............................................10
Step 1: Install the Central Processing Unit (CPU) ........................................ 11
Step 1-1: CPU Installation ........................................................................................... 11
Step 1-2 : CPU Cooling Fan 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 & Jumper Setting Introduction .................................................... 18
Chapter 3 BIOS Setup ....................................................................... 31
The Main Menu (For example: BIOS Ver. : F1) ........................................... 32
Standard CMOS Features ............................................................................. 34
Advanced BIOS Features .............................................................................. 37
Integrated Peripherals .................................................................................. 39
Power Management Setup ............................................................................ 43
Table of Content
English
- 3 -
PnP/PCI Configurations................................................................................. 45
PC Health Status ........................................................................................... 46
Frequency/Voltage Control ............................................................................ 48
Top Performance ............................................................................................ 50
Load Fail-Safe Defaults ................................................................................. 51
Load Optimized Defaults ............................................................................... 52
Set Supervisor/User Password ..................................................................... 53
Save & Exit Setup .......................................................................................... 54
Exit Without Saving ...................................................................................... 55
Chapter 4 Technical Reference .......................................................... 57
@ BIOSTM Introduction .................................................................................. 57
Easy TuneTM 4 Introduction ........................................................................... 58
Flash BIOS Method Introduction ................................................................... 59
2-/4-/6-Channel Audio Function Introuction.................................................. 74
Chapter 5 Appendix .......................................................................... 81
- 4 -GA-8SIMLH-P(-P-C) Motherboard
English
Item Checklist
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.
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.
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.
Installing the motherboard to the chassis…
The GA-8SIMLH-P(-P-C) motherboard 2 Port USB Cable x 1
IDE cable x 1/ Floppy c able x 1 4 Port USB Cable x 1
CD for motherboard driver & u tility SPDIF-KIT x 1 (SPDIF Out K IT)
GA-8SIMLH-P(-P-C) user's manual IEEE 1394 Cable x1
I/O Shield
(j)
Audio Combo Kit x 1
Quick PC Insta llation Guide (SURROUND -Kit + SPDIF Out KIT)
RAID M anual Motherboard Settings Label
j For GA-8SIMLH-P only.
Introduction- 5 -
English
Chapter 1 Introduction
to be continued......
Features Summary
Form Factor — 24.4cm x 21.5cm 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®4 400/533 MHz FSB
— 2nd cache depends on CPU
Chipset — SiS 651 Host/Memory controller
— SiS 962L MuTIOL Media I/O
Memory — 2 184-pin DDR sockets
— Supports DDR200/DDR266/DDR333
— Supports up to 2 un-buffer Double-sided DIMM DDR200/266
/333
— Supports up to 2GB (Max)
— Supports only 2.5V DDR DIMM
I/O Control — W83697HF
Slots — 1 Universal AGP slot (2X/4X) device support
— 3 PCI slot supports 33MHz & PCI 2.2 compliant
On-Board IDE — 2 IDE bus master (UDMA33/ATA66/ATA100/ATA133) IDE
ports for up to 4 ATAPI devices
— Supports PIO mode3,4 (UDMA 33/ATA66/ATA100/ATA133)
IDE & ATAPI CD-ROM
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 port (COMA),1 VGA port,COMB on board
— 6 x USB 2.0/1.1 (2 x Rear, 4 xFront by cable)
— 1 Front Audio Connector
— 1 IrDA connector for IR
- 6 -GA-8SIMLH-P(-P-C) Motherboard
English
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.
Hardware Monitor — CPU/System Fan Revolution detect
— CPU/System Fan Control
— CPU Overheat Warning
— System Voltage Detect
On-Board Sound — Realtek ALC655 CODEC
— Line Out / 2 front speaker
— Line In / 2 rear speaker(by s/w switch)
— Mic In / center& subwoofer(by s/w switch)
— SPDIF Out /SPDIF In
— CD_In / Game Port
On-Board LAN
(j)
— Build in RTL8201 Chipset
On-Board VGA — Build in SiS651 Chipset
PS/2 Connector — PS/2 Keyboard interface and PS/2 Mouse interface
BIOS — Licensed Award BIOS
— Supports Q-Flash
Additional Features — PS/2 Keyboard power on by password
— PS/2 Mouse power on
— STR(Suspend-To-RAM)
— AC Recovery
— USB KB/Mouse wake up from S3
— Supports EasyTune 4
— Supports @BIOS
j For GA-8SIMLH-P only.
Introduction- 7 -
English
GA-8SIMLH-P(-P-C) Motherboard Layout
DIMM _LED
KB_MS
USB_LAN
(j)
ATX_12V
CPU_FAN
PWR_L ED
COMA
LPT
SOC KET478
ATX
VGA
GA-8SIMLH
FDD
CI
COMB
F_PANEL
BAT
SYS _FAN
PCI2
PCI3
F_U SB1
W83697HF
BIOS
SiS 96 2L
IR
CODEC
F_U SB2
CLR_C MOS
F_AUDIO
CD_IN
GAME
LINE_IN
LINE_OUTMIC_IN
SiS 651
IDE1
IDE2
AGP
PCI1
DDR2
DDR1
RTL82 01
(j )
SUR_CEN
SPDIF_IO
-P/-P-C
j For GA-8SIMLH-P only.
- 8 -GA-8SIMLH-P(-P-C) Motherboard
English
Block Diagram
Pentium 4
Socket 478
CPU
SiS 651
AC97
CODEC
SiS 962L
CPUCLK+/- (100/133 MHz)
System Bus
400/533 MHz
DDR
200/266/333MHz
ZCLK (66MHz)
HCLK+/- (100/133 MHz)
66 MHz
33 MHz
14.318 MHz
48 MHz
24 MHz
33 MHz
LPC BUS
AGP 2X/4X
AGPCLK
(66M Hz)
3 PCI
PCICLK
(33M Hz)
AC97 Link
MIC
LINE-IN
LINE-OUT
6 USB
Ports
ATA33/66/100/133
IDE Channels
Floppy
LPT Port
PS/2
KB/Mouse
COM
Ports
BIOS
W83697HF
Game Port
RTL8201
(j)
RJ45
(j)
VGA Port
CLK GEN
ZCLK (66MHz)
CPUCLK+/- (100/133 MHz)
AGPCLK (66MHz)
HCLK+/- (100/133 MHz)
PCICLK (33MHz)
USBCLK (48MHz)
14.318 MHz
33 MHz
j For GA-8SIMLH-P only.
Introduction- 9 -
English
- 10 -GA-8SIMLH-P(-P-C) Motherboard
English
To set up your computer, you must complete the following steps:
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
Chapter 2 Hardware Installation Process
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 2
Step 4
Step 4
Step 1
Step 4
Step 3
- 11 - Hardware Installation Process
English
Step 1: Install the Central Processing Unit (CPU)
Step 1-1: CPU Installation
Pin1 indicator
3. CPU Top View
2. Pull the rod to the 90-degree directly.
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.
Angling the
rod to 65
0
Socket
Actuation
Lever
Pin1 indicator
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.
Before installing the processor, adhere to the following warning:
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.
Please make sure the CPU type is supported by the motherboard.
- 12 -GA-8SIMLH-P(-P-C) Motherboard
English
Step 1-2 : CPU Cooling Fan Installation
1. Please use Intel approved cooling fan.
2. We recommend you to apply the thermal tape to provide better heat conduction
between your CPU and cooling fan.
(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 processor. To avoid this from happening, we suggest you to
either use thermal tape instead of thermal paste, or remove the cooling fan with
extreme caution.)
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.
2. Make sure the CPU fan is plugged to
the CPU fan connector, than install
complete.
1. Fasten the cooling fan supporting-base
onto the CPU socket on the
mainboard.
Before installing the CPU cool fan , adhere to the following warning:
- 13 - Hardware Installation Process
English
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
socket. The DIMM module can only fit in one direction due to the notch. Memory size can vary
between sockets.
Step 2: Install memory modules
DDR
Before installing the processor and heatsink, adhere to the following warning:
When DIMM_LED is ON, do not install/remove DIMM from socket.
Please note that the DIMM module can only fit in one direction due to the one notches.
Wrong orientation will cause improper installation. Please change the insert orientation.
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)
Notch
- 14 -GA-8SIMLH-P(-P-C) Motherboard
English
DDR Introduction
1. The DIMM slot has a notch, so the DIM M memory
module can only fit in one direction.
2. Insert the DIM M m emory module vertically into
the DIMM slot. Then push it down.
3. Close the plastic clip at both edges of the DIM M
slots to lock the DIMM module.
Reverse the installation steps when you wish
to remove the DIM M module.
Established on the existing SDRAM infrastructure, DDR (Double Data Rate) memory is a high
performance and cost-effective solution that allows easy adoption for memory vendors, OEMs,
and system integrators.
DDR memory is a great evolutionary solution for the PC industry that builds on the existing
SDRAM 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.
- 15 - Hardware Installation Process
English
Step 3: Install expansion 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.
AGP Card
Please carefully pull out the sm all white- drawable bar
at the end o f the AGP slot when you try to instal l/
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 sm all whitedrawable bar.
- 16 -GA-8SIMLH-P(-P-C) Motherboard
English
Step 4: Connect ribbon cables, cabinet wires, and power
supply
Step 4-1: I/O Back Panel Introduction
u
v
w x
y
u PS/2 Keyboard and PS/2 Mouse Connector
Ø This connector supports standard PS/2
keyboard and PS/2 mouse.
v USB & LAN Connector
Ø Before 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
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.
PS/2 Mouse Connector
(6 pin Female)
PS/2 Keyboard Connector
(6 pin Female)
USB 0
USB 1
LAN
(j)
j For GA-8SIMLH-P only.
- 17 - Hardware Installation Process
English
x Game /MIDI Ports
y Audio Connectors
Ø This connector supports joystick, MIDI
keyboard and other relate audio devices.
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.
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 Subwoofer" to "MIC Out".
Method2:
You can refer to page 25, and contact your
nearest dealer for optional SUR_CEN cable.
w Parallel Port , Serial Port and VGA Port (LPT/COMA/VGA)
Ø This connector supports 1 standard COM port,
1 Parallel port and 1 VGA port. Device like
printer can be connected to Parallel port;
mouse and modem etc can be connected to
Serial ports.
Parallel Port
(25 pin Female)
Joystick/ MIDI (15 pin Female)
COMA VGA
Serial Port
(9 pin Male)
VGA Port
(15 pin Female)
Line In
(Rear Speaker)
MIC In
(Center and Subwoofer)
Line Out
(Front
Speaker)
If you want the detail information for 2-/4-/6-channel audio setup
installation, please refer to page 74.
- 18 -GA-8SIMLH-P(-P-C) Motherboard
English
Step 4-2: Connectors & Jumper Setting Introduction
1) ATX_12V 12) SUR_CEN
2) ATX 13) CD_IN
3) CPU_FAN 14) SPDIF_IO
4) SYS_FAN 15) IR
5) IDE1/IDE2 16) F_USB1/F_USB2
6) FDD 17) COMB
7) DIMM_LED 18) CI
8) PWR_LED 19) CLR_CMOS
9) F_PANEL
10) BAT
11) F_AUDIO
3
1
7
2
15
8109
17 1614
4
6
5
18
13
11
19
12
- 19 - Hardware Installation Process
English
1) ATX_12V (+12V Power Connector)
This connector (ATX _12V) suppliesthe CPU operation voltage (Vcore). If this " ATX_ 12V connector" is
not connected, system cannot boot.
Pin No. Definition
1 GND
2 GND
3 +12V
4 +12V
2) 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.
Pin No. Definition
1 3.3V
2 3.3V
3 GND
4 VCC
5 GND
6 VCC
7 GND
8 Power Good
9 5V SB(stand by +5 V)
10 +12V
11 3.3V
12 -12V
13 GND
14 PS_O N (softOn/ Off)
15 GND
16 GND
17 GND
18 -5V
19 VCC
20 VCC
3
1
4
2
1
10
20
11
- 20 -GA-8SIMLH-P(-P-C) Motherboard
English
3) 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 dam aged by overheating.The CPU fan connector supports Max.
current up to 600 mA.
4) SYS_FAN (System FAN Connector)
This connector allows you to link with the cooling fan on the system case to lower the system
temperature.
Pin No. Definition
1 GND
2 +12V
3 Sense
Pin No. Definition
1 GND
2 +12V
3 Sense
1
1
- 21 - Hardware Installation Process
English
5) IDE1/ IDE2(IDE1/IDE2 Connector)
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.
IDE1
IDE2
1
39
2
40
6) 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 m ust be the same side with the Pin1.
1
34
2
33
- 22 -GA-8SIMLH-P(-P-C) Motherboard
English
7) DIMM_LED
Do not remove memory modules while DIM M LED is on. It m ight cause short or other unexpected
damages due to the 2.5V stand by voltage. Remove mem ory modules only when AC Power cord is
disconnected.
+ -
8) PWR_LED
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-
1
- 23 - Hardware Installation Process
English
9) F_PANEL (2x10 pins connector)
Please connect 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 assignm ent above.
HD (IDE Hard Disk Ac tive LED) Pin 1: LED anode(+)
Pin 2: LED cathode(-)
SPK (Speaker Connector) Pin 1: VCC(+)
Pin 2- Pin 3: NC
Pin 4: Data(-)
RST (Reset Switc h) Open: Normal Operation
Close: Reset Hardware System
PW (Soft Power Connector) Open: Norm al Operation
Close: Power On/Off
MPD(Message LED/Power/ Pin 1: LED anode(+)
Sleep LED) Pin 2: LED cathode(-)
NC NC
SPK -
SPK +
20
Speaker
Connector
1
19
IDE H ard Disk
Activ e LED
Reset Swi tch
2
1
Soft Po wer
Connector
1
MPD+
MPD-
Mes sa ge LE D/ Po wer/
Sleep LED
PW-
PW+
1
HD+
HD-
1
RST+
RST-
NC
1
- 24 -GA-8SIMLH-P(-P-C) Motherboard
English
11) F_AUDIO (F_AUDIO Connector)
If you want to use Front Audio connector, you must remove 5-6, 9-10 Jum per. 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 sam e 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 the
alternati ve of using front audio connector or of using rear aud io connector to pl ay sound.
Pin No. Definition
1 MIC
2 GND
3 REF
4 POWER
5 FrontAudio(R)
6 RearAudio(R)
7 Reserved
8 No Pin
9 FrontAudio (L)
10 RearAudio(L)
109
1
2
10) BAT (Battery)
If yo u want to erase CMOS...
1.Turn OFF the computer a nd unplug the power cord.
2.Remov e the battery, wait for 30 second.
3.Re-install the battery.
4.Plug the power cord and turn ON the com puter.
+
CAUTION
v Danger of explosi on if batte ry is incorrectly
replaced.
v Replace only with th e same or equivalent
type recom mended by the m anufacturer.
v Dispose of used batteries according to the
manufacturer's instructions.
- 25 - Hardware Installation Process
English
13) CD_IN (CD IN, Black)
Connect CD-ROM or DVD-ROM audio out to the connector.
Pin No. Definition
1 CD-L
2 GND
3 GND
4 CD_R
1
12) SUR_CEN
Please contact your nearest dealer for optional SUR_CEN cable.
Pin No. Definition
1 SUR OUT L
2 SUR OUT R
3 GND
4 No Pin
5 CENTER_OUT
6 BASS_OUT
1
5
6
2
- 26 -GA-8SIMLH-P(-P-C) Motherboard
English
14) SPDIF_IO (SPDIF In/Out)
The SPDIF output is capable of providing digital audio to external speakers or com pressed AC3 data to
an external Dolby Digital Decoder. Use this featu re only when your stereo system has digita l input
function. Use SPDIF IN featu re only when your device has digital output function.
Be careful with the polarity of the SPDIF_IO connector. Check the pin assignment carefully while you
connect the SPDIF_IO cable, incorrect connectio n between the cable and connector will make the
device unable to work or even damage it. For optional SPDIF_IO cable, please contact your local
dealer.
Pin No. Definition
1 VCC
2 No Pin
3 SPDIF
4 SPDIFI
5 GND
6 GND
1
6
2
5
15) IR
Make sur e the pin 1 on the IR device is aling with pin one the connector. To enable the IR fun ction on
the board, you are required to purchase an option IR module. Be careful with the polarity of the IR
connector. F or optional IR cable, please contact your l ocal dealer.
Pin No. Definition
1 VCC
2 No Pin
3 IR Data Input
4 GND
5 IR Data Output
1
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