GA-8S649MF-FS
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GA-8S649MF-FS
Intel® Pentium® 4 LGA775 Processor Motherboard
User's Manual
Rev . 1001
GA-8S649MF-FS Motherboard Layout
SPDIF_O
COMA
KB_MS
USB_1394
LPT
USB
AUDIO
RTL8201CL
LAN
AUX_IN
F_AUDIO
PCIE_16
ATX_12V
PCI1
PCI2
LGA775
SiS 649
CPU_FAN
GA-8S649MF
DDR1
DDR2
SiS 965
BIOS
ATX
Buzzer
IT8705
IDE2
FDD
SYS_FAN
IDE1
S_ATA0
S_ATA1
CODEC
PCI3
F_1394
VT6307
SAFE MODE
F_USB1
-FS
F_USB2
BATTERY
F_PANEL
S_ATA2
S_ATA3
CLR_CMOS
- 2 -
Block Diagram
PCI-
ECLK(100MHz)
PCI Express x16
PCI Bsu
LGA775
Processor
System Bus
800MHz
SiS 649
SiS 965
CPUCLK+/-(200MHz)
DDR400/333/266MHz DIMM
DDR RAM
MCHCLK (200MHz)
66MHz
33MHz
14.318MHz
48MHz
4 Serial ATA
ATA33/66/100
IDE Channels
Floppy
3 PCI
PCICLK(33MHz)
VT6307
2 IEEE1394
RTL
8210CL
RJ45
MII
SPDIF Out
IT 8705
CODEC
8 USB
Ports
\ MIC
Line-Out
Surround Speaker
Surround Speaker \ Line-In
Center / Subwoofer Speaker Out
LPT Port
COM Port
BIOS
PS/2
KB/Mouse
- 3 -
1- 1 Feature Summary
English
CPU Supports the latest Intel® Pentium® 4 LGA775 CPU
Chipset Northbridge: SiS
Memory 2 DDR DIMM memory slots (supports up to 2GB memory)
Slots 1 PCI Express x 16 slot
IDE Connections 2 IDE connection (UDMA 33/ATA 66/ATA 100), allows connection of 4 IDE
FDD Connections 1 FDD connection
Onboard SATA 4 Serial ATA connections
Peripherals 1 parallel port supporting Normal/EPP/ECP mode
Onboard LAN Onboard Realtek 8201CL chip (10/100 Mbit)
Onboard Audio ALC655 CODEC
I/O Control IT8705
Hardware Monitor System voltage detection
BIOS Use of licensed AWARD BIOS
Additional Features Supports @BIOS
Form Factor Micro ATX form factor; 24.4 cm x 24.4cm
Chapter 1 Hardware Installation
Supports Intel Pentium 4 series CPU with Hyper-Threading Technology
Supports FSB up to 800MHz
L2 cache varies with CPU
®
649 Host / Memory Controller chipset
Southbridge: SiS® 965 MuTIOL
Supports DDR400/333/266 DIMM
Supports 2.5V DDR DIMM
3 PCI slots
devices
1 COMA port
8 USB 2.0/1.1 ports (rear x 4, front x 4 via cable)
1 front audio connector
2 IEEE1394 ports (rear x 1, front x 1 via cable)
1 PS/2 keyboard port
1 PS/2 mouse port
1 RJ 45 port
Supports Jack Sensing function
Center/Subwoofer Speaker Out ; MIC ;
Front Speaker \ Line Out ;Surround Speaker \ Line In
AUX In \ SPDIF_O
CPU temperature detection
CPU / System fan speed detection
CPU warning temperature
CPU / System fan failure warning
GA-8S649MF-FS Motherboard - 4 -
1-2 I/O Back Panel Introduction
PS/2 Keyboard and PS/2 Mouse Connector
English
PS/2 Mouse Connector
(6 pin Female)
PS/2 Keyboard Connector
(6 pin Female)
USB / 1394 Connector
1394
USB 0
USB 1
This connector supports standard PS/2
keyboard and PS/2 mouse.
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.
Serial interface standard set by Institute of Electrical and Electronics Engineers, which has
features like high speed, highbandwidth and hot plug. Be careful with the polarity of the IEEE1394
connector. Check the pin assignment carefully while you connect the IEEE1394 cable, incorrect
connection between the cable and connector will make the device unable to work or even damage
it. For optional IEEE1394 cable, please contact your local dealer.
Hardware Installation- 5 -
Parallel Port, Serial Port and SPDIF (LPT/COMA/SPDIF)
Parallel Port
(25 pin Female)
This connector supports 1 standard COM port
,1 Parallel port and 1 SPIDF . Device like printer
can be connected to Parallel port; mouse and
modem etc can be connected to Serial ports.
The SPDIF output is capable of providing digital
audio to external speakers or compressed AC3
data to an external Dolby Digital Decoder.
English
SPDIF
COMA
Serial Port
(9 pin Male)
USB / LAN Connector
LAN
USB 2
USB 3
Audio Connectors
Line In(Rear Speaker)
LAN is fast Ethernet with 10/100 Mbps speed.
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.
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.
Line Out
MIC In(Center and Subwoofer)
(Front Speaker)
Please note:
Y ou are able to use 2-/4-/6- channel audio
feature by S/W selection.
Hardware Installation- 6 -
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 specifica
tions 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 hard
ware 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
- Chipset: An Intel
- BIOS: A BIOS that supports HT Technology and has it enabled
- OS: An operation system that has optimizations for HT Technology
®
Pentium 4 Processor with HT Technology
®
Chipset that supports HT Technology
1-3-1 Installation of the CPU
Fig. 1
Metal Lever
indented corner 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-8S649MF-FS Motherboard - 7 -
Gently lift the metal
lever located on the
CPU socket to the
upright position.
Fig. 3
Notice the small gold
colored triangle located on the edge of
the CPU socket.
Align the
Fig. 2
Remove the plastic
covering on the CPU
socket.
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. 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. 5
Please check the back of motherboard after installing. If the push pin is inserted as the picture,
the installation is complete.
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.
Fig. 6
Finally, please attach the power connector of the
heatsink to the CPU fan header located on the
motherboard.
Hardware Installation- 8 -
1-4 Installation of Memory
English
The motherboard supports DDR memory modules, whereby BIOS will automatically detect memory
capacity and specifications. Memory modules are designed so that they can be inserted only in one
direction. The memory capacity used can differ with each slot.
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.
Notch
1. The DIMM slot has a notch, so the DIMM
memory module can only fit in one direction.
2. Insert the DIMM memory module vertically
into the DIMM slot. Then push it down.
3. Close the plastic clip at both edges of the DIMM
slots to lock the DIMM module.
Reverse the installation steps when you wish
to remove the DIMM module.
DDR
GA-8S649MF-FS Motherboard - 9 -
1- 5 Connectors Introduction
English
13
10
9
2
5
4
6
7
14
15
13
1112
8
1) ATX_12V
2) ATX (Power Connector)
3) CPU_FAN
4) SYS_FAN
5) FDD
6) IDE1 / IDE2
7) S_ATA0 / S_ATA1 / S_ATA2 / S_ATA3
8) F_PANEL
9) F_AUDIO
10) AUX_IN
11) F_USB1 / F_USB2
12) F_1394
13) CLR_CMOS
14) SAFE MODE
15) Battery
Hardware Installation- 10 -
1/2) ATX_12V/ATX (Power Connector)
English
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.
If you use a 24-pin ATX power supply, please remove the small cover on the power connector on
the motherboard before plugging in the power cord ; Otherwise, please do not remove it.
2
4
3
1
Pin No. Definition
1 GND
2 GND
3 +12V
4 +12V
12
Pin No. Definition
1 3.3V
24
1
13
2 3.3V
3 GND
4 VCC
5 GND
6 VCC
7 GND
8 Power Good
9 5V SB(stand by +5V)
10 +12V
11 +12V
12 3.3V(Only for 24pins A TX)
13 3.3V
14 -12V
15 GND
16 PS_ON(soft On/Off)
17 GND
18 GND
19 GND
20 -5V
21 VCC
22 VCC
23 VCC
24 GND
GA-8S649MF-FS Motherboard - 11 -
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