Gigabyte GA-8I845GVM-775: Chapter 1 Hardware Installation
Chapter 1 Hardware Installation: Gigabyte GA-8I845GVM-775
English
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 you 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 theinformation
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.
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 -
1-2 Feature Summary
CPU Supports the latest Intel
®
Pentium
®
4 LGA775 CPU
Supports 533/400MHz FSB
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L2 cache varies with CPU
Chipset Northbridge: Intel
®
82845GV GMCH chipset
Southbridge: Intel
®
82801 (ICH4)
Memory 2 DDR DIMM memory slots (supports up to 2GB memory)
Supports dual channel DDR333/DDR266 DIMM
Supports 2.5V DDR DIMM
Slots 3 PCI slots
IDE Connections 2 IDE connection (UDMA 33/ATA 66/ATA 100), allows connection of 4 IIDE
devices
FDD Connections 1 FDD connection, allows connection of 2 FDD devices
Peripherals 1 parallel port supporting Normal/EPP/ECP mode
1 Serial port (COMA), 1 VGA port, COMB on board
6 USB 2.0/1.1 ports (rear x 2, front x 4 via cable)
1 front audio connector
1 PS/2 keyboard port
1 PS/2 mouse port
Onboard LAN Onboard Realtek 8100C chip (10/100 Mbit)
1 RJ 45 port
Onboard Audio Realtek ALC655 codec
Supports Jack-Sensing function
Supports 2 / 4 / 6 channel audio
Supports Line Out / 2 front speaker
Line In / 2 rear speaker (by s/w switch)
Mic In / center & subwoofer (by s/w switch)
Supports SPDIF In/Out connection
CD In / AUX_In
I/O Control IT8712F
Hardware Monitor System voltage detection
CPU temperature detection
CPU / System fan speed detection
CPU warning temperature
CPU / System fan failure warning
CPU smart fan control
BIOS Use of licensed AWARD BIOS
Supports Q-Flash
Additional Features Supports @BIOS
Supports EasyTune4
Overclocking Over Clock via BIOS (DDR/CPU)
Form Factor Micro ATX form factor; 24.4 cm x 22.0 cm
GA-8I845GVM775 Motherboard - 10 -
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1-3 Installation of the CPU and Heatsink
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 re-
quires all of the following platform components:
- CPU: An Intel
®
Pentium 4 Processor with HT Technology
- Chipset: An Intel
®
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
Fig. 1
Fig. 2
Metal Lever
Gently lift the metal
Remove the plastic
lever located on the
covering on the CPU
CPU socket to the
socket.
upright position.
Fig. 3
Fig. 4
Notice the small gold
Once the CPU is
colored triangle
properly inserted,
located on the edge of
please replace the
the CPU socket.
load plate and
Align the
push the metal lever
indented corner of the
back into its original
CPU with the triangle and gently insert the CPU
position.
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.)
Hardware Installation- 11 -
1-3-2 Installation of the Heatsink
Male Push Pin
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The top of Female Push Pin
Female Push Pin
Fig.1
Fig. 2
Please apply an even layer of heatsink paste on
(Turning the push pin along the direction of arrow
the surface of the installed CPU.
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. 3
Fig. 4
Place the heatsink atop the CPU and make sure
Please make sure the Male and Female push pin
the push pins aim to the pin hole on the
are joined closely. (for detailed installation
motherboard.Pressing down the push pins
instructions, please refer to the heatsink installation
diagonally.
section of the user manual)
Fig. 5
Fig. 6
Please check the back of motherboard after
Finally, please attach the power connector of the
installing. If the push pin is inserted as the picture,
heatsink to the CPU fan header located on the
the installation is complete.
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.
GA-8I845GVM775 Motherboard - 12 -
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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 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.
Notch
DDR
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.
Hardware Installation- 13 -
1-5 Install expansion cards
You can install your expansion card by following the steps outlined below:
1. Read the related expansion card's instruction document before install the expansion card into the
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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 PCI expansion card:
GA-8I845GVM775 Motherboard - 14 -
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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 o the lower port (purple).
Parallel Port
The parallel port allows connection of a printer, scanner and other peripheral devices.
COM A (Serial Port)
Connects to serial-based mouse or data processing devices.
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 support USB 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 provided Internet connection is fast Ethernet, providing data transfer speeds of 10/100Mbps.
Line In
Devices like CD-ROM, walkman etc. can be connected to Line In jack.
Line Out
Connect the stereo speakers, earphone or front surround speakers to this connector.
MIC In
Microphone can be connected to MIC In jack.
Hardware Installation- 15 -
1-7 Connectors Introduction
12
3
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5
6
7
4
8
10
11 13
12 169 15
14
1) ATX_12V
9) CD_IN
2) ATX (Power Connector)
10) AUX_IN
3) CPU_FAN
11) SPDIF_IO
4) SYS_FAN
12) COMB
5) FDD
13) F_USB1
6) IDE1 / IDE2
14) CLR_CMOS
7) F_AUDIO
15) CI
8) F_PANEL
16) BAT
GA-8I845GVM775 Motherboard - 16 -
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.
1
3
Pin No. Definition
2
1 GND
4
2 GND
3 +12V
4 +12V
11
1
Pin No. Definition
1 3.3V
2 3.3V
3 GND
4 +5V
5 GND
6 +5V
7 GND
20
10
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 +5V
20 +5V
Hardware Installation- 17 -
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 foolproof connection design.
Most coolers are designed with color-coded power connector wires. A red power connector
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wireindicates 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.
1
Pin No. Definition
CPU_FAN
1 GND
2 +12V
3 Sense
4 Speed Control
1
(Only for CPU_FAN)
SYS_FAN
5) FDD (Floppy 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.
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33
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1
GA-8I845GVM775 Motherboard - 18 -
6) IDE1 / IDE2 (IDE1 / IDE2 Connector)
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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).
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7) F_AUDIO (Front Audio Connector)
Please make sure the pin assignments on the cable are the same as the pin assignments of the
F_AUDIO connector on the motherboard. 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 on pin 5-6, 9-10.
Pin No. Definition
1 MIC
910
2 GND
3 MIC_BIAS
12
4 Power
5 Front Audio (R)
6 Rear Audio (R)
7NC
8 No Pin
9 Front Audio (L)
10 Rear Audio (L)
Hardware Installation- 19 -
8) F_PANEL (Front Panel Jumper)
Please connect the power LED, PC speaker, reset switch and power switch etc of your chassis
frontpanel to the F_PANEL connector according to the pin assignment below.
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Message LED/
Power
Power/
Switch
Speaker Connector
Sleep LED
PW+
SPEAK+
SPEAK-
MSG+
MSG-
PW-
2
20
1
19
HD+
RES-
NC
HD-
RES+
IDE Hard Disk
Reset Switch
Active LED
HD (IDE Hard Disk Active LED) Pin 1: LED anode(+)
Pin 2: LED cathode(-)
SPEAK (Speaker Connector) Pin 1: Power
Pin 2- Pin 3: NC
Pin 4: Data(-)
RES (Reset Switch) Open: Normal
Close: Reset Hardware System
PW (Power Switch) Open: Normal
Close: Power On/Off
MSG(Message LED/Power/Sleep LED) Pin 1: LED anode(+)
Pin 2: LED cathode(-)
NC NC
GA-8I845GVM775 Motherboard - 20 -
9) CD_IN (CD IN)
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Connect CD-ROM or DVD-ROM audio out to the connector.
Pin No. Definition
1 CD-L
1
2 GND
3 GND
4 CD -R
10) AUX_IN (AUX In Connector)
Connect other device (such as PCI TV Tuner audio out) to the connector.
Pin No. Definition
1 AUX-L
1
2 GND
3 GND
4 AUX-R
Hardware Installation- 21 -
11) SPDIF_IO (SPDIF In/Out Connector)
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
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digital input 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.
Pin No. Definition
1 VCC
2
6
2 No Pin
3 SPDIF
1
5
4 SPDIFI
5 GND
6 GND
12) COMB (Serial Port Connector)
Be careful with the polarity of the COM connector. Check the pin assignment carefully while you
connect the COM cable, incorrect connection between the cable and connector will make the
device unable to work or even damage it. For optional COM cable, please contact your local
dealer.
Pin No. Definition
1 NDCD B-
2 NSIN B
210
3 NSOUT B
4 NDTR B-
5 GND
19
6 NDSR B-
7 NRTS B-
8 NCTS B-
9 NRI B-
10 No Pin
GA-8I845GVM775 Motherboard - 22 -
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13) F_USB1 (Front USB Connector, Yellow)
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
1 Power
2 Power
3 USB Dx-
210
4 USB Dy-
1
9
5 USB Dx+
6 USB Dy+
7 GND
8 GND
9 No Pin
10 NC
14) CLR_CMOS (Clear CMOS)
You may clear the CMOS data to its default values by this jumper. To clear CMOS, temporarily
short 1-2 pin. Default doesn't include the "Shunter" to prevent from improper use this jumper.
1
Open: Normal
1
Short :Clear CMOS
Hardware Installation- 23 -
15) CI (CASE OPEN)
This 2-pin connector allows your system to enable or disable the "Case Open" item in BIOS, if the
system case begin remove.
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Pin No. Definition
1 Signal
1
2 GND
16) BAT(Battery)
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.
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.
GA-8I845GVM775 Motherboard - 24 -
Оглавление
- GA-8I845GVM775 Motherboard Layout
- Block Diagram
- Chapter 1 Hardware Installation
- Chapter 2 BIOS Setup
- Revision History
- Chapter 4 Appendix
