IDE (ATA100 ) cable x 1 / Floppy cable x 1 I/O Shield Kit
CD for motherboard driver & utility
GA-8ICMT 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.
WARNING!
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
Chapter 1 Introduction
Features Summary
Form Factor 9.6” x 9.6” M ATX size form factor, 6 layers PCB.
CPU Supports Intel® Pentium Prescot and Celeron processor
1 Floppy port supports 2 FDD with 360K, 720K,1.2M, 1.44M
2 PS/2 connectors
1 Parallel port supports Normal/EPP/ECP mode
1 Serial port (COM)
4 x USB 2.0
1 VGA connector
1 x LAN RJ45
4 x SATA connectors
Hardware Monitor CPU/Power/System Fan Revolution Detect
CPU shutdown when overheat
System Voltage Detect
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
Step 5- Setup BIOS software
Step 4
Step3
Step4
Step 4
Step1
LGA775
Step 2
Step 4
8
GA-8ICMT Motherboard
Step 1: Installing Processor and CPU Haet Sink
Before installing the processor and cooling fan, adhere to the following cautions:
English
Step1-1: Installing CPU
Step 1 Gently lift the metal lever located on the CPU socket to the upper-right position.
Step 2 Remove the plastic covering on the CPU socket.
Step 3 Align the indented corner of the CPU with the triangle and gently insert the CPU into position.
Step 4 Once the CPU is properly inserted, please replace the plastic covering and push the metal
Step 5 Close the lever, reverse step 1 & 2.
1.The processor will overheat without the heatsink and/or fan, resulting in permanent
irreparable damage.
2.Never force the processor into the socket.
3.Apply thermal grease on the processor before placing cooling fan.
4.Please make sure the CPU type is supported by the motherboard.
5.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.
(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.)
lever back into its original position.
9
Step1-2: Installing Heat Sink
Hardware Installation Process
Male Push Pin
The top of Female Push Pin
Female Push Pin
Fig.1
Please apply heatsink paste on the surface of
the installed CPU.
Fig. 3
Place the heatsink on top the CPU and make
sure the push pins align to the pin hole on the
motherboard.Push down the push pins
diagonally.
Fig. 2
( to remove the heatsink, turning the push pin along
the direction of arrow; and reverse the previous
step to install the heat sink.)
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 brought together. (for detailed installation
instructions, please refer to the heatsink installation
section of the user manual)
Fig. 5
Please check the back side of teh motherboard.
Make sure the push pin is seated firmly as the
picture shown. Installation completed.
Fig. 6
Attach the power connector of the heatsink to the
CPU fan header located on the motherboard.
10
GA-8ICMT Motherboard
Step 2: Install memory modules
English
When DIMM LED is ON, do not install/remove DIMM from socket.
GA-8ICMT has 4 dual inline memory module (DIMM) socets. It supports the Dual Channel Technology.
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. Wrong
orientation will cause improper installation. Please change the insert orientation. Memory size can vary
between sockets.
Before installing the processor and heatsink, adhere to the following warning:
LGA775
Channel A
Channel B
Notch
11
Hardware Installation Process
Table 1. Supported DIMM Module Type
TechnologyOrganizationSDRAM Chips/DIMM
256MB8MB x 8 x 4 bks8
16MB x 4 x 4bks16
512MB16MB x 8 x 4bks8
32MB x 4 x 4bks16
1GB32MB x 8 x 4bks8
64MB x 4 x 4bks16
Table 2. DIMM Placement DDR2-400
DIMM ConfigurationDIMM1DIMM2
1 Single RankEmptyEmpty
1 Dual RankEmptyEmpty
2 Single RankEmptySingle Rank
1 Dual Rank, 1 Single RankEmptySingle Rank
2 Dual RankEmptyDual Rank
Installation Step:
1. Unlock a DIMM socket by pressing the retaining clips outwards.
2. Aling a DIMM on the socket such that the notch on the DIMM exactly match the notches in the
socket.
3. Firmly insert the DIMMinto the socket until the retaining clips snap back in place.
4. When installing the DIMM into the DIMM socket, we recommend to populate one DIMM in
Channel A module and one in Channel B module for best performance.
Please note that each logical DIMM must be made of two identical DIMMs having the same
device size on each and the same DIMM size.
5. Reverse the installation steps when you wish to remove the DIMM module.
12
GA-8ICMT Motherboard
Step 3: Install expansion cards
1. Read the related expansion card’s instruction document before install the expansion card into
English
2. Remove your server’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.
the computer.
13
Hardware Installation Process
Step 4: Connect ribbon cables, cabinet wires, and power
supply
Step 4-1 : I/O Back Panel Introduction
LGA775
14
GA-8ICMT Motherboard
PS/2 Keyboard and PS/2 Mouse Connector
English
/ Parallel Port / Serial Port / VGA Port
LAN Port
USB Port
LAN LED Description
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).
This connector supports 1 standard COM port and 1 Parallel port. Device like printer can be
connected to Parallel port ; mouse and modem etc can be connected to Serial port.
The provided Internet connection is Gigabit Ethernet, providing data transfer speeds of 10/
100/1000Mbps.
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 updated. For more information please
contact your OS or device(s) vendors.
Name
LAN
Link/Activity
10/100 LAN
Speed
GbE LAN
Speed
ColorConditionDescription
GreenONLAN Link / no Access
GreenBLINKLAN Access
-OFFIdle
GreenON100Mbps connection
-OFF10Mbps connection
YellowON1Gbps connection
YellowBLINKPort identification with 1Gbps connection
GreenON100Mbps connection
GreenBLINKPort identification with 10 or 100Mbps connection
Please connect first harddisk to IDE1. The red stripe of the ribbon cable must be the same side with
the Pin1.
1
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2
D) 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 must be the same side with the
Pin1.
2
LGA775
1
39
40
34
33
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GA-8ICMT Motherboard
E / F/ G / H ) S_ATA1/ 2/ 3/ 4 (Serial ATA Connectors)
English
You can connect the Serial ATA device to this connector, it provides you high speed transfer rates
(150MB/sec).
SATA_3
7
LGA775
1
SATA_1
SATA_2
Pin No.Definition
1GND
2TXP
3TXN
4GND
5RXN
6RXP
7GND
SATA_4
I )F_USB1 (Front USB Connector)
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
USB cable.
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Pin No.Definition
10
9
2
1
1No Pin
2USB over current
3GND
4GND
5 USB DX+
6USB DY+
7USB DX8USB DY9Power
10Power
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GA-8ICMT Motherboard
J ) HDD_LED
English
K ) BAT1 (Battery)
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1
Pin No.Definition
1NC
2HD_LED
3HD_LED
4NC
4
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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.
20
CAUTION
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.
Connector Introduction
L ) F_Panel1 (2X9 Pins Front Panel connector)
Please connect the power LED, PC speaker, reset switch and power switch of your chassis
front panel to the F_PANEL connector according to the pin assignment above.
LGA775
Pin NoSignal NameDescription
1HD+Hard Disk LED anode (+)
2PDG5VSB
3HD-Hard Disk LEDcathode(-)
4PDYPower LED Signal
5GNDGround
6PW+Soft power connector anode (+)
7RSTReset button
8GNDGround
9VCC+5V Standby power connector
10SLPNC
1 1IRRXNo function
12GNDGround
13GNDGround
14NCNo connect
15IRTXNo function
16VCCNC
17GNDGround
18CICase open signal
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GA-8ICMT Motherboard
M ) CPU_FAN (CPU Fan Connector)
English
N ) FRONT_FAN (Front System Fan Connector)
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 1A .
Pin No.Definition
1
LGA775
This connector allows you to link with the cooling fan on the system case to lower the system
temperature.
1GND
212V
3Sense
4Control
LGA775
22
1
Pin No.Definition
1GND
212V
3Sense
4Control
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