GA-8S661FXM-775
GA-8S661FXM-775
Intel® Pentium
User's Manual
Rev. 1102
12ME-61FXM775-1102
®
4 LGA775 Processor Motherboard
Sept. 29, 2004
GA-8S661FXM-775
Motherboard
Sept. 29, 2004
GA-8S661FXM-775
Motherboard
Copyright
© 2006 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved.
The trademarks mentioned in the manual are legally registered to their respective companies.
Notice
The written content provided with this product is the property of Gigabyte.
No part of this manual may be reproduced, copied, translated, or transmitted in any form or by any
means without Gigabyte's prior written permission. Specifications and features are subject to
change without prior notice.
Product Manual Classification
In order to assist in the use of this product, Gigabyte has categorized the user manual in the
following:
For detailed product information and specifications, please carefully read the
"User’s Manual."
For detailed information related to Gigabyte's unique features, please go to the "Technology
Guide" section on Gigabyte’s website to read or download the information you need.
For more product details, please visit Gigabyte's website at www.gigabyte.com.tw
Table of Contents
GA-8S661FXM-775 Motherboard Layout ..................................................................... 6
Block Diagram ................................................................................................................ 7
Chapter 1 Hardware Installation ..................................................................................... 9
1-1 Considerations Prior to Installation .................................................................... 9
1-2 Feature Summary .......................................................................................... 10
1-3 Installation of the CPU and Heatsink .............................................................. 12
1-3-1 Installation of the CPU ......................................................................................... 12
1-3-2 Installation of the Heatsink .................................................................................. 13
1-4 Installation of Memory .................................................................................... 14
1-5 Installation of Expansion Cards ...................................................................... 15
1-6 I/O Back Panel Introduction ........................................................................... 16
1-7 Connectors Introduction .................................................................................. 17
Chapter 2 BIOS Setup................................................................................................. 29
The Main Menu (For example: BIOS Ver. : E3) ....................................................... 30
2-1 Standard CMOS Features ............................................................................. 32
2-2 Advanced BIOS Features.............................................................................. 34
2-3 Integrated Peripherals ..................................................................................... 36
2-4 Power Management Setup ............................................................................. 38
2-5 PnP/PCI Configurations................................................................................. 40
2-6 PC Health Status ........................................................................................... 41
2-7 MB Intelligent Tweaker (M.I.T.) ...................................................................... 42
2-8 Top Performance ............................................................................................. 44
2-9 Load Fail-Safe Defaults ................................................................................... 44
2-10 Load Optimized Defaults ................................................................................. 45
2-11 Set Supervisor/User Password ..................................................................... 45
2-12 Save & Exit Setup......................................................................................... 46
2-13 Exit Without Saving ....................................................................................... 46
- 4 -
Chapter 3 Drivers Installation ...................................................................................... 49
3-1 Install Chipset Drivers .................................................................................... 49
3-2 Software Applications ..................................................................................... 50
3-3 Driver CD Information .................................................................................... 50
3-4 Hardware Information ..................................................................................... 51
3-5 Contact Us..................................................................................................... 51
Chapter 4 Appendix .................................................................................................... 53
4-1 Unique Software Utility .................................................................................. 53
4-1-1 Xpress Recovery2 Introduction ......................................................................... 53
4-1-2 BIOS Flash Method Introduction ........................................................................ 55
4-1-3 Serial ATA BIOS Setting Utility Introduction ...................................................... 64
4-1-4 2 / 4 / 6 Channel Audio Function Introduction ................................................. 71
4-2 Troubleshooting ............................................................................................... 79
- 5 -
GA-8S661FXM-775 Motherboard Layout
KB_MS
COMA
VGA
USB
AUDIO
CODEC
USB
LPT
LAN
IT8705AF
CD_IN
ATX_12V
F_AUDIO
BIOS
COMB
ICS1883
SUR_CEN
AGP
SPDIF_IO
LGA775
SiS 661FX
PCI1
PCI2
PCI3
BAT
F_USB1
CPU_FAN
GA-8S661FXM-775
DDR2
DDR1
SiS 964
CI
F_USB2
PWR_LED
F_PANEL
ATX FD D
IDE2 IDE1
SATA1
SATA0
CLR_CMOS
SYS _FAN
- 6 -
Block Diagram
AGPCLK
(66MHz)
3 PCI
PCICLK
(33MHz)
AGP 4X/8X
ICS1883
RJ45
VGA Port
AC97 Link
AC97
CODEC
MIC
LINE-IN
LGA775
Processor
SiS 661FX
8 USB
Ports
LINE-OUT
SiS 964
ATA33/66/100/
Host
Interface
LPC BUS
133 IDE
Channels
CPUCLK+/- (133/200MHz)
266/333/400MHz
DDR RAM
HCLK+/- (100/133/200MHz)
133MHz
33 MHz
14.318 MHz
48 MHz
2 Serial ATA
IT8705AF
24 MHz
33 MHz
PS/2
KB/Mouse
BIOS
Floppy
LPT Port
COM
Ports
- 7 -
- 8 -
Chapter 1 Hardware Installation
1-1 Considerations Prior to Installation
Preparing Your Computer
The motherboard contains numerous delicate electronic circuits and components which can
become damaged as a result of electrostatic discharge (ESD). Thus, prior to installation, please
follow the instructions below:
1. Please turn off the computer and unplug its power cord.
2. When handling the motherboard, avoid touching any metal leads or connectors.
3. It is best to wear an electrostatic discharge (ESD) cuff when handling electronic components
(CPU, RAM).
4. Prior to installing the electronic components, please have these items on top of an antistatic pad or
within a electrostatic shielding container.
5. Please verify that the power supply is switched off before unplugging the power supply connector
from the motherboard.
Installation Notices
1. Prior to installation, please do not remove the stickers on the motherboard. These stickers are required
for warranty validation.
2. Prior to the installation of the motherboard or any hardware, please first carefully read the information
in the provided manual.
3. Before using the product, please verify that all cables and power connectors are connected.
4. To prevent damage to the motherboard, please do not allow screws to come in contact with the
motherboard circuit or its components.
5. Please make sure there are no leftover screws or metal components placed on the motherboard or
within the computer casing.
6. Please do not place the computer system on an uneven surface.
7. Turning on the computer power during the installation process can lead to damage to system
components as well as physical harm to the user.
8. If you are uncertain about any installation steps or have a problem related to the use of the product,
please consult a certified computer technician.
English
Instances of Non-Warranty
1. Damage due to natural disaster, accident or human cause.
2. Damage as a result of violating the conditions recommended in the user manual.
3. Damage due to improper installation.
4. Damage due to use of uncertified components.
5. Damage due to use exceeding the permitted parameters.
6. Product determined to be an unofficial Gigabyte product.
Hardware Installation- 9 -
English
1-2 Feature Summary
CPU Supports the latest Intel® Pentium® 4 LGA775 CPU
Supports 800/533MHz FSB
L2 cache varies with processors
Chipset Northbridge:SiS® 661FX
Southbridge: SiS® 964
Memory 2 184-pin DDR DIMM slots
Supports DDR400/333/266 DIMM
Supports up to 2GB (Max.)
Slots 1 AGP slot 4X/8X (1.5V) device support
3 PCI slots
IDE Connections 2 IDE connection (UDMA 33/ATA 66/ATA 100/ATA133), allows connection of
4 IDE devices
Onboard SATA 2 Serial ATA ports
FDD Connections 1 FDD connection, allows connection of 2 FDD devices
Peripherals 1 parallel port supporting Normal/EPP/ECP mode
1 VGA port, 1 COMA port, onboard COMB connection
8 USB 2.0/1.1 ports (rear x 4, front x 4 via cable)
1 front audio connector
1 PS/2 keyboard port
1 PS/2 mouse port
Onboard VGA Built-in SiS® 661FX Chipset
Onboard LAN ICS 1883 chip
1 RJ45 port
Onboard Audio Realtek ALC655 CODEC
Supports Line In ; Line Out ; MIC In
Supports 2 / 4 / 6 channel audio
SPDIF In/Out connection
CD In connection
Supports Jack-Sensing function
I/O Control IT8705AF
Hardware Monitor CPU / System fan speed detection
System voltage detection
CPU temperature detection
CPU Smart Fan Control
GA-8S661FXM-775 Motherboard - 10 -
Onboard SATA RAID Onboard SiS964 chipset
- supports data striping (RAID 0) or mirroring (RAID 1) function
- supports JBOD function
- supports data transfer rate of up to 150 MB/s
- supports hot plugging function
- supports a maximum of 2 SATA connections
BIOS Use of licensed AWARD BIOS
Supports Q-Flash
Additional Features Supports @BIOS
Supports EasyTune
Form Factor Micro-ATX form factor; 24.4cm x 23.0cm
English
Hardware Installation- 11 -
1-3 Installation of the CPU and Heatsink
English
Before installing the CPU, please comply with the following conditions:
1. Please make sure that the motherboard supports the CPU.
2. Please take note of the one indented corner of the CPU. If you install the CPU
in the wrong direction, the CPU will not insert properly. If this occurs, please change
the insert direction of the CPU.
3. Please add an even layer of heat sink paste between the CPU and heatsink.
4. Please make sure the heatsink is installed on the CPU prior to system use, otherwise
overheating and permanent damage of the CPU may occur.
5. Please set the CPU host frequency in accordance with the processor specifications. It is not
recommended that the system bus frequency be set beyond hardware specifications since it
does not meet the required standards for the peripherals. If you wish to set the frequency
beyond the proper specifications, please do so according to your hardware specifications
including the CPU, graphics card, memory, hard drive, etc.
HT functionality requirement content :
Enabling the functionality of Hyper-Threading Technology for your computer system requires all
of the following platform components:
- CPU: An Intel® Pentium 4 Processor with HT Technology
- Chipset: An SiS® Chipset that supports HT Technology
- BIOS: A BIOS that supports HT Technology and has it enabled
- OS: An operation system that has optimizations for HT Technology
1-3-1 Installation of the CPU
Metal Lever
Fig. 1
Gently lift the metal
lever located on the
CPU socket to the
upright position.
Fig. 2
Remove the plastic
covering on the CPU
socket.
Fig. 3
Notice the small gold
colored triangle located on the edge of
the CPU socket.
Align the indented cor-
ner of the CPU with
the triangle and gently insert the CPU into position.
(Grasping the CPU firmly between your thumb
and forefinger, carefully place it into the socket in a
straight and downwards motion. Avoid twisting or
bending motions that might cause damage to the
CPU during installation.)
GA-8S661FXM-775 Motherboard - 12 -
Fig. 4
Once the CPU is
properly inserted,
please replace the
plastic covering and
push the metal lever
back into its original
position.
1-3-2 Installation of the Heatsink
English
Male Push Pin
The top of Female Push Pin
Female Push Pin
Fig.1
Please apply an even layer of heatsink paste on
the surface of the installed CPU.
Fig. 3
Place the heatsink atop the CPU and make sure
the push pins aim to the pin hole on the
motherboard.Pressing down the push pins
diagonally.
Fig. 5
Please check the back of motherboard after
installing. If the push pin is inserted as the picture,
the installation is complete.
Fig. 2
(Turning the push pin along the direction of arrow
is to remove the heatsink, on the contrary, is to
install.)
Please note the direction of arrow sign on the male
push pin doesn't face inwards before installation.
(This instruction is only for Intel boxed fan)
Fig. 4
Please make sure the Male and Female push pin
are joined closely. (for detailed installation
instructions, please refer to the heatsink installation
section of the user manual)
Fig. 6
Finally, please attach the power connector of the
heatsink to the CPU fan header located on the
motherboard.
The heatsink may adhere to the CPU as a result of hardening of the heatsink paste.To prevent
such an occurrence, it is suggested that either thermal tape rather than heat sink paste be used
for heat dissipation or using extreme care when removing the heatsink.
Hardware Installation- 13 -
English
1-4 Installation of Memory
Before installing the memory modules, please comply with the following conditions:
1. Please make sure that the memory used is supported by the motherboard. It is recommended that
memory of similar capacity, specifications and brand be used.
2. Before installing or removing memory modules, please make sure that the computer
power is switched off to prevent hardware damage.
3. Memory modules have a foolproof insertion design. A memory module can be
installed in only one direction. If you are unable to insert the module, please switch the
direction.
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.
notch
Fig.1
The DIMM socket has a notch, so the DIMM memory module
can only fit in one direction. Insert the DIMM memory module
vertically into the DIMM socket. Then push it down.
Fig.2
Close the plastic clip at both edges of the DIMM sockets to lock
the DIMM module.
Reverse the installation steps when you wish to remove the
DIMM module.
GA-8S661FXM-775 Motherboard - 14 -
DDR memory module
Fig. 1
Fig. 2
1-5 Installation of Expansion Cards
You can install your expansion card by following the steps outlined below:
1. Read the related expansion card's instruction document before installing the expansion card into
the computer.
2. Remove your computer's chassis cover, 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.
Installing a AGP expansion card:
Please carefully pull out the small white-drawable
bar at the end of the AGP slot when you try to
AGP Card
install/uninstall the VGA card. Please align the VGA
card to the onboard AGP slot and press firmly
down on the slot. Make sure your VGA card is
locked by the small white-drawable bar.
English
Hardware Installation- 15 -
English
1-6 I/O Back Panel Introduction
PS/2 Keyboard and PS/2 Mouse Connector
To install a PS/2 port keyboard and mouse, plug the mouse to the upper port (green) and the keyboard to the
lower port (purple).
Parallel Port
The parallel port allows connection of a printer, scanner and other peripheral devices.
Serial Port
Devices like mouses, modems, and etc. can be connected to Serial port.
VGA Port
Monitor can be connected to VGA port.
USB port
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 supportUSB controller, please contact OS vendor for possible patch or driver upgrade. For more information please contact your
OS or device(s) vendors.
LAN Port
The LAN port provides Internet connection.
Line In
Devices like CD-ROM, walkman etc. can be connected to Line In jack.
Line Out (Front Speaker Out)
Connect the stereo speakers, earphone or front surround channels to this connector.
MIC In
Microphone can be connected to MIC In jack.
GA-8S661FXM-775 Motherboard - 16 -
1-7 Connectors Introduction
16
8
31 2
1711 1391412
English
6
5
18
15
4
7
10
1) ATX_12V 10) F_PANEL
2) ATX 11) CD_IN
3) CPU_FAN 12) SPDIF_IO
4) SYS_FAN 13) F_USB1/F_USB2
5) IDE1/IDE2 14) CI
6) FDD 15) CLR_CMOS
7) SATA0/SATA1 16) COMB
8) F_AUDIO 17) PWR_LED
9) SUR_CEN 18) BAT
Hardware Installation- 17 -
English
1/2) ATX_12V/ATX (Power Connector)
With the use of the power connector, the power supply can supply enough stable power to all
the components on the motherboard. Before connecting the power connector, please make sure
that all components and devices are properly installed. Align the power connector with its
proper location on the motherboard and connect tightly.
The ATX_12V power connector mainly supplies power to the CPU. If the ATX_12V power
connector is not connected, the system will not start.
Caution!
Please use a power supply that is able to handle the system voltage requirements. It is
recommended that a power supply that can withstand high power consumption be used (300W
or greater). If a power supply is used that does not provide the required power, the result can
lead to an unstable system or a system that is unable to start.
4
3
11
20
2
1
1
10
Pin No. Definition
1 GND
2 GND
3 +12V
4 +12V
Pin No. Definition
1 3.3V
2 3.3V
3GND
4 VCC
5GND
6 VCC
7GND
8 Power Good
9 5V SB (stand by +5V)
10 +12V
11 3.3V
12 -12V
13 GND
14 PS_ON (soft on/off)
15 GND
16 GND
17 GND
18 -5V
19 VCC
20 VCC
GA-8S661FXM-775 Motherboard - 18 -
3/4) CPU_FAN / SYS_FAN (Cooler Fan Power Connector)
The cooler fan power connector supplies a +12V power voltage via a 3-pin/4-pin (only for
CPU_FAN) power connector and possesses a fool-proof connection design.
Most coolers are designed with color-coded power connector wires. A red power connector
wire indicates a positive connection and requires a +12V power voltage. The black connector
wire is the ground wire (GND).
Please remember to connect the power to the cooler to prevent system overheating and
failure.
Caution! Please remember to connect the power to the CPU fan to prevent CPU overheating
and failure.
Pin No. Definition
1
CPU_FAN
1
SYS_FAN
1GND
2 +12V
3 Sense
4 Speed Control
English
(Only for CPU_FAN)
Hardware Installation- 19 -
English
5) IDE1/IDE2 (IDE Connector)
An IDE device connects to the computer via an IDE connector. One IDE connector can connect to one
IDE cable, and the single IDE cable can then connect to two IDE devices (hard drive or optical drive). If
you wish to connect two IDE devices, please set the jumper on one IDE device as Master and the other
as Slave (for information on settings, please refer to the instructions located on the IDE device).
40
21
IDE2 Connector
40 39
39
21
IDE1 Connector
6) FDD (FDD Connector)
The FDD connector is used to connect the FDD cable while the other end of the cable connects to the
FDD drive. The types of FDD drives supported are: 360KB, 720KB, 1.2MB, 1.44MB and 2.88MB.
Please connect the red power connector wire to the pin1 position.
3334
GA-8S661FXM-775 Motherboard - 20 -
12
7) SATA0/SATA1 (Serial ATA Connector, Controlled by SiS964)
Serial ATA can provide up to 150MB/s transfer rate. Please refer to the BIOS setting for the Serial
ATA and install the proper driver in order to work properly.
Pin No. Definition
1
S_ATA
(Control by SiS964)
7
1 GND
2 TXP
3 TXN
4 GND
5 RXN
6 RXP
7 GND
8) F_AUDIO (Front Audio Panel Connector)
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 panel connector, please contact your
dealer. If you want to use "Front Audio" connector, you must remove the jumpers from pins 5-6,
9-10.
English
10 9
2
Pin No. Definition
1 MIC
1
2 GND
3 MIC_BIAS
4 POWER
5 FrontAudio(R)
6 Rear Audio (R)/ Return R
7NC
8 No Pin
9 FrontAudio (L)
10 Rear Audio (L)/ Return L
Hardware Installation- 21 -
English
9) SUR_CEN
Please contact your nearest dealer for optional SUR_CEN cable.
Pin No. Definition
652
1
1 SUR OUTL
2 SUR OUTR
3 GND
4 No Pin
5 CENTER_OUT
6 BASS_OUT
10) F_PANEL (Front Panel Connector)
Please connect the power LED, PC speaker, reset switch and power switch etc. of your chassis
front panel to the F_PANEL connector according to the pin assignments below.
MSG+
Switch
PW+
MSG-
Power
PW-
Speaker Connector
SPEAK+
SPEAK-
20
19
Message LED/
Power/
Sleep LED
2
1
HD (IDE Hard Disk Active LED) Pin 1: LED anode(+)
Pin 2: LED cathode(-)
SPEAK (Speaker Connector) Pin 1: VCC(+)
Pin 2- Pin 3: NC
Pin 4: Data(-)
RES (Reset Switch) Open: Normal Operation
Close: Reset Hardware System
PW (Power Switch) Open: Normal Operation
Close: Power On/Off
MSG (Message LED/Power/Sleep LED) Pin 1: LED anode(+)
Pin 2: LED cathode(-)
NC NC
GA-8S661FXM-775 Motherboard - 22 -
HD-
RES+
NC
HD+
RES-
Reset Switch
IDE Hard Disk Active LED
11) CD_IN (CD IN Connector)
Connect CD-ROM or DVD-ROM audio out to the connector.
Pin No. Definition
1
1 CD-L
2 GND
3 GND
4 CD-R
12) SPDIF_IO (SPDIF In/ Out)
The SPDIF output is capable of providing digital audio to external speakers or compressed AC3
data to an external Dolby Digital Decoder. Use this feature only when your stereo system has
digital input function. Use SPDIF IN feature 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 connection 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.
English
Pin No. Definition
62
1
5
1 VCC
2 No Pin
3 SPDIF
4 SPDIFI
5 GND
6 GND
Hardware Installation- 23 -
English
13) F1_USB / F2_USB (Front USB Connectors)
Be careful with the polarity of the front USB connector. Check the pin assignment carefully while
you connect the front USB cable, incorrect connection between the cable and connector will make
the device unable to work or even damage it. For optional front USB cable, please contact your
local dealer.
Pin No. Definition
2
1
1
10
9
1 Power
2 Power
3 USB0 DX4 USB1 Dy5 USB0 DX+
6 USB1 Dy+
7 GND
8 GND
9 No Pin
10 NC
14) CI (Chassis Intrusion, Case Open)
This 2-pin connector allows your system to detect if the chassis cover is removed. You can
check the "Case Open" status in BIOS Setup.
GA-8S661FXM-775 Motherboard - 24 -
Pin No. Definition
1
1 Signal
2 GND
15) CLR_CMOS (Clear CMOS)
You may clear the CMOS data to its default values by this jumper. To clear CMOS, temporarily
short pins 1-2. To prevent improper use of this header, we do not include a jumper on it.
Open: Normal
1
Short: Clear CMOS
1
16) COMB (COMB Connector)
Be careful with the polarity of the COMB connector. Check the pin assignments while you connect
the COMB cable. Please contact your nearest dealer for optional COMB cable.
English
Pin No. Definition
1 NDCDA-
2
1
10
9
2 NSINA
3 NSOUTA
4 NDTRA5 GND
6 NDSRA7 NRTSA8 NCTSA9 NRIA10 No Pin
Hardware Installation- 25 -
English
17) PWR_LED
PWR_LED is connected with the system power indicator to indicate whether the system is on/off.
It will blink when the system enters suspend mode.
Pin No. Definition
1 MPD+
1
2 MPD3 MPD-
18) BAT (Battery)
If you want to erase CMOS...
1. Turn OFF the computer and unplug the power cord.
2. Take out the battery gently and put it aside for about 10 minutes.
(Or you can use a metal object to connect the positive and negative pins in the battery holder to makethem short for one
minute.)
3. Re-install the battery.
4. Plug the power cord and turn ON the computer.
GA-8S661FXM-775 Motherboard - 26 -
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended
by the manufacturer.
Dispose of used batteries according to the manufacturer's
instructions.
English
Hardware Installation- 27 -
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