ECS G31T-M User manual

Preface
Preface
Copyright
This publication, including all photographs, illustrations and software, is protected
under international copyright laws, with all rights reserved. Neither this manual, nor
any of the material contained herein, may be reproduced without written consent of
the author.
Version 1.0
Disclaimer
The information in this document is subject to change without notice. The manufac-
turer makes no representations or warranties with respect to the contents hereof and
specifically disclaims any implied warranties of merchantability or fitness for any
particular purpose. The manufacturer reserves the right to revise this publication and
to make changes from time to time in the content hereof without obligation of the
manufacturer to notify any person of such revision or changes.
Trademark Recognition
Microsoft, MS-DOS and Windows are registered trademarks of Microsoft Corp.
MMX, Pentium, Pentium-II, Pentium-III, Celeron are registered trademarks of Intel
Corporation.
Other product names used in this manual are the properties of their respective
owners and are acknowledged.
Federal Communications Commission (FCC)
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installa-
tion. This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may cause harmful inter-
ference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one
or more of the following measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and the receiver
• Connect the equipment onto an outlet on a circuit different from that to
which the receiver is connected
• Consult the dealer or an experienced radio/TV technician for help
Shielded interconnect cables and a shielded AC power cable must be employed with
this equipment to ensure compliance with the pertinent RF emission limits govern-
ing this device. Changes or modifications not expressly approved by the system’s
manufacturer could void the user’s authority to operate the equipment.

ii
Preface
Declaration of Conformity
This device complies with part 15 of the FCC rules. Operation is subject to the
following conditions:
• This device may not cause harmful interference, and
• This device must accept any interference received, including interfer-
ence that may cause undesired operation
Canadian Department of Communications
This class B digital apparatus meets all requirements of the Canadian Interference-
causing Equipment Regulations.
Cet appareil numérique de la classe B respecte toutes les exigences du Réglement sur
le matériel brouilieur du Canada.
About the Manual
The manual consists of the following:
Chapter 1
Introducing the Motherboard
Chapter 2
Installing the Motherboard
Chapter 3
Using BIOS
Chapter 4
Using the Motherboard Software
Describes features of the
motherboard.
Go to Hpage 1
Describes installation of
motherboard components.
Go to Hpage 7
Provides information on using
the BIOS Setup Utility.
Go to Hpage 25
Describes the motherboard soft-
ware
Go to Hpage 43

iii
TT
TT
TABLE OF CONTENTSABLE OF CONTENTS
ABLE OF CONTENTSABLE OF CONTENTS
ABLE OF CONTENTS
Preface i
Chapter 1 1
Introducing the Motherboard 1
Introduction......................................................................................1
Feature...............................................................................................2
Motherboard Components.............................................................4
Chapter 2 77
77
7
Installing the Motherboard 7
Safety Precautions...........................................................................7
Choosing a Computer Case............................................................7
Installing the Motherboard in a Case............................................7
Checking Jumper Settings...............................................................8
Setting Jumpers...................................................................8
Checking Jumper Settings...................................................9
Jumper Settings...................................................................9
Connecting Case Components.....................................................10
Front Panel Header...........................................................12
Installing Hardware........................................................................13
Installing the Processor.....................................................13
Installing Memory Modules...............................................15
Installing a Hard Disk Drive/CD-ROM/SATA Hard Drive...17
Installing a Floppy Diskette Drive....................................18
Installing Add-on Cards....................................................19
Connecting Optional Devices............................................21
Connecting I/O Devices................................................................24
Chapter 3 25
Using BIOS 25
About the Setup Utility.................................................................25
The Standard Configuration..............................................25
Entering the Setup Utility...................................................25
Updating the BIOS............................................................27
Using BIOS......................................................................................27
Standard CMOS Setup......................................................28
Advanced Setup.................................................................30
Advanced Chipset Setup....................................................33

iv
Integrated Peripherals.......................................................34
Power Management Setup.................................................35
PCI/PnP Setup...................................................................37
PC Health Status...............................................................37
Frequency/Voltage Control................................................39
Load Default Settings........................................................40
Supervisor Password........................................................40
User Password..................................................................41
Save & Exit Setup..............................................................41
Exit Without Saving............................................................41
Chapter 4 4343
4343
43
Using the Motherboard Software 43
About the Software CD-ROM......................................................43
Auto-installing under Windows 2000/XP...................................43
Running Setup....................................................................44
Manual Installation........................................................................46
Utility Software Reference............................................................46

1
Introducing the Motherboard
Chapter 1
Introducing the Motherboard
Introduction
Thank you for choosing the G31T-M motherboard. This motherboard is a high
performance, enhanced function motherboard designed to support the LGA775 socket
Intel®Wolfdale/Core™2 Duo processors for high-end business or personal desktop
markets.
The motherboard incorporates the G31 Northbridge (NB) and ICH7 Southbridge
(SB) chipsets. The Northbridge supports a Front Side Bus (FSB) frequency of 1333/
1066/800 MHz using a scalable FSB Vcc_CPU. The memory controller supports
DDR2 memory DIMM frequencies of 800/667. It supports two DDR2 Sockets with
up to maximum memory of 4 GB. DDR2 Maximum memory bandwidth of 12.8 GB/
s in dual-channel symmetric mode assuming DDR2 800 MHz. High resolution graph-
ics via one PCI Express slot, intended for Graphics Interface, are fully compliant to
the PCI Express Base Specification revision 1.1.
The ICH7 Southbridge supports two PCI slots which are PCI 2.3 compliant. In
addition, one PCI Express x1 slot is supported, fully compliant to the PCI Express
Base Specification, Revision 1.0a. It implements an EHCI compliant interface that
provides 480 Mb/s bandwidth for eight USB 2.0 ports. One onboard IDE connector
supports 2 IDE devices in Ultra ATA 100/66/33 mode. The Southbridge integrates a
Serial ATA host controller, supporting four SATA ports with maximum transfer rate
up to 3.0 Gb/s each.
The motherboard is equipped with advanced full set of I/O ports in the rear panel,
including PS/2 mouse and keyboard connectors, COM1, VGA1 port, four USB ports,
one optional LAN port, and audio jacks for microphone, line-in and 6/8-channel
(optional) line-out.
Under ECS validation, G31T-M is able to support FSB1333 MHz.

2
Introducing the Motherboard
Feature
• Accommodates Intel®Wolfdale/Core™2 Duo processors
• Supports a system bus (FSB) of 1333/1066/800 MHz
• Supports “Hyper-Threading” technology CPU
The motherboard uses an LGA775 type of Intel®Wolfdale/Core™2 Duo that
carries the following features:
Processor
The G31 Northbridge (NB) and ICH7 Southbridge (SB) chipsets are based on an
innovative and scalable architecture with proven reliability and performance.
Chipset
ICH7 (SB)
• Supports DDR2 800/667 DDR SDRAM with Dual-channel architecture
• Accommodates two unbuffered DIMMs
• Up to 2 GB per DIMM with maximum memory size up to 4 GB
Memory
G31 (NB)
“Hyper-Threading” technology enables the operating system into thinking it’s
hooked up to two processors, allowing two threads to be run in parallel, both on
separate “logical” processors within the same physical processor.
• Supports 36-bit host bus addressing, allowing the CPU
to access the entire 64 GB of the memory address
space
• 2 GB/s point-to-point Direct Media Interface (DMI) to
ICH7 (1 GB/s each direction)
• Supports 512 Mb and 1 Gb DDR2 DRAM technologies
for x8 and x16 devices
• One, 16-lane PCI Express port intended for Graphics
Attach, compatible to the PCI Express* Base Specifi-
cation revision 1.1
Onboard LAN (optional)
• Integrated Fast Ethernet Controller for PCI ExpressTM Applications
• Integrated 10/100 transceiver
• Wake-on-LAN and remote wake-up support
The onboard LAN controller provides either of the following features:
• Enhanced DMA Controller, interrupt controller, and timer
functions
• Compliant with PCI Express Base Specification, Revi-
sion 1.0a
• Compliant with PCI 2.3 specification
• Integrated SATA 3.0 Gb/s Host Controller
• Integrated USB 2.0 Host Controller supporting up to
eight USB 2.0 ports
• Integrated IDE controller supports Ultra ATA 100/66/33
• Supports PCI ExpressTM 1.1
• Integrated 10/100/1000 transceiver
• Wake-on-LAN and remote wake-up support

3
Introducing the Motherboard
Audio (optional)
• 7.1 + 2 Channel High Definition Audio Codec
• All DACs support 192K/96K/48K/44.1KHz DAC sample rate
• Software selectable 2.5V/3.75V VREFOUT
• Meets Microsoft WHQL/WLP 2.x audio requirements
• Direct Sound 3DTM compatible
The motherboard comes with the following expansion options:
• One PCI Express slot for Graphic Interface
• One PCI Express x1 Slot
• Two 32-bit PCI v2.3 compliant slots
• One IDE connector that supports two IDE devices
• One floppy disk drive interface
• Four 7-pin SATA connectors
Expansion Options
• Two PS/2 ports for mouse and keyboard
• One serial port
• One VGA port
• Four USB ports
• One LAN port (optional)
• Audio jacks for microphone, line-in and 6/8-channel (optional) High
Definition Audio output
The motherboard has a full set of I/O ports and connectors:
Integrated I/O
The firmware can also be used to set parameters for different processor clock
speeds.
• Power management
• Wake-up alarms
• CPU parameters
• CPU and memory timing
BIOS Firmware
This motherboard uses AMI BIOS that enables users to configure many system
features including the following:
Some hardware specifications and software items are subject to change
with out prior notice.
• 5.1 Channel High Definition Audio Codec
• ADCs support 44.1k/48k/96k sample rate
• Meets Microsoft WLP 3.08 Vista premium and mobile PCs audio
requirements
• Direct Sound 3DTM compatible
This motherboard may support either of the following Audio chipsets:

4
Introducing the Motherboard
Motherboard Components

5
Introducing the Motherboard
Table of Motherboard Components
LABEL COMPONENTS
1. CPU Socket LGA775 socket for Intel®Wolfdale/ Core™ 2 Duo CPUs
2. CPU_FAN CPU cooling fan connector
3. DIMM1~2 240-pin DDR2 SDRAM slots
4. ATX1 Standard 24-pin ATX power connector
5. SATA1~4 Serial ATA connectors
6. F_USB1~2 Front Panel USB headers
7. SPK1 Speaker header
8. USBPWR_F Front Panel USB Power Select Jumper
9. F_PANEL1 Front panel switch/LED header
10. IDE1 Primary IDE channel
11. CLR_CMOS Clear CMOS jumper
12. FDD Floppy disk drive connector
13. SPDIFO1 SPDIF out header
14. CD_IN1 Analog audio input connector
15. F_AUDIO1 Front panel audio header
16. PCI1~2 32-bit add-on card slots
17. SPI_ROM SPI ROM header
18. PCI-E1 PCI Express x1 slot
19. PCIEX1 PCI Express x16 graphics card slot
20. USBPWR_R Rear Panel USB PS/2 Power Select Jumper
21. SYS_FAN System cooling fan connector
22. ATX12V1 4-pin +12V power connector
23. LPT1 Onboard parallel port header
This concludes Chapter 1. The next chapter explains how to install the motherboard.
“*” stands for optional components.

6
Introducing the Motherboard
Memo

7
Installing the Motherboard
Chapter 2
Installing the Motherboard
Safety Precautions
• Follow these safety precautions when installing the motherboard
• Wear a grounding strap attached to a grounded device to avoid dam-
age from static electricity
• Discharge static electricity by touching the metal case of a safely
grounded object before working on the motherboard
• Leave components in the static-proof bags they came in
• Hold all circuit boards by the edges. Do not bend circuit boards
Choosing a Computer Case
There are many types of computer cases on the market. The motherboard complies
with the specifications for the Micro ATX system case. First, some features on the
motherboard are implemented by cabling connectors on the motherboard to indica-
tors and switches on the system case. Make sure that your case supports all the
features required. Secondly, this motherboard supports one or two floppy diskette
drives and two enhanced IDE drives. Make sure that your case has sufficient power
and space for all drives that you intend to install.
Most cases have a choice of I/O templates in the rear panel. Make sure that the I/O
template in the case matches the I/O ports installed on the rear edge of the
motherboard.
This motherboard carries a Micro ATX form factor of 244 x 200 mm. Choose a case
that accommodates this form factor.
Installing the Motherboard in a Case
Refer to the following illustration and instructions for installing the motherboard in
a case.
Most system cases have mounting brackets installed in the case, which correspond
the holes in the motherboard. Place the motherboard over the mounting brackets
and secure the motherboard onto the mounting brackets with screws.
Ensure that your case has an I/O template that supports the I/O ports and expansion
slots on your motherboard.

8
Installing the Motherboard
Checking Jumper Settings
This section explains how to set jumpers for correct configuration of the motherboard.
Setting Jumpers
Use the motherboard jumpers to set system configuration options. Jumpers with
more than one pin are numbered. When setting the jumpers, ensure that the jumper
caps are placed on the correct pins.
The illustrations show a 2-pin jumper.
When the jumper cap is placed on both
pins, the jumper is SHORT. If you re-
move the jumper cap, or place the jumper
cap on just one pin, the jumper is OPEN.
This illustration shows a 3-pin jumper.
Pins 1 and 2 are SHORT.
SHORT OPEN
Do not over-tighten the screws as this can stress the motherboard.

9
Installing the Motherboard
Checking Jumper Settings
The following illustration shows the location of the motherboard jumpers. Pin 1 is
labeled.
Jumper Settings
USBPWR_F
USBPWR_R
Jumper Type Description Setting (default)
CLR_CMOS 3-pin Clear CMOS
1-2: NORMAL
2-3: CLEAR CMOS
Before clearing the
CMOS, make sure to
turn off the system.
CLR_CMOS
1
USBPWR_F 3-pin
USBPWR_R 3-pin Rear USB PS/2
Power Select
Jumper 2-3: 5VSB
1-2: VCC 1
Front Panel
Select Jumper
USB Power 1-2: VCC
2-3: 5VSB
1. To avoid the system instability after clearing CMOS, we recommend
users to enter the main BIOS setting page to “Load Optimal Defaults”
and then “Save Changes and Exit”.
2. Make sure the power supply provides enough 5VSB voltage before
selecting the 5VSB function.
3. It is required that users place the USBPWR_F & USBPWR_R cap onto
2-3 pin rather than 1-2 pin as default if you want to wake up the com-
puter by USB/PS2 KB/Mouse.
1

10
Installing the Motherboard
24-pin power cable
Connecting Case Components
After you have installed the motherboard into a case, you can begin connecting the
motherboard components. Refer to the following:
1 Connect the CPU cooling fan cable to CPU_FAN.
2 Connect the system cooling fan connector to SYS_FAN.
3 Connect the case switches and indicator LEDs to the F_PANEL1.
4 Connect the case speaker cable to SPK1.
5 Connect the standard power supply connector to ATX1.
6 Connect the auxiliary case power supply connector to ATX12V1.
Users please note that the 20-pin and 24-pin power cables can both be
connected to the ATX1 connector. With the 20-pin power cable, just align
the 20-pin power cable with the pin 1 of the ATX1 connector. However,
using 20-pin power cable may cause the system to become unbootable or
unstable because of insufficient electricity. A minimum power of 300W is
recommended for a fully-configured system.
20-pin power cable
With ATX v2.x power supply, users please
note that when installing 24-pin power cable,
the latches of power cable and the ATX1
match perfectly.
With ATX v1.x power supply, users please
note that when installing 20-pin power cable,
the latch of power cable falls on the left side
of the ATX1 connector latch, just as the
picture shows.
Connecting 20/24-pin power cable

11
Installing the Motherboard
ATX12V1: ATX 12V Power Connector
Pin Signal Name
4+12V
3+12V
2Ground
1Ground
Users please note that the fan connector supports the CPU cooling fan
of 1.1A ~ 2.2A (26.4W max) at +12V.
ATX1: ATX 24-pin Power Connector
Pin Signal Name Pin Signal Name
1+3.3V 13 +3.3V
3Ground 15 Ground
4+5V 16 PS_ON
5Ground 17 Ground
6+5V 18 Ground
7Ground 19 Ground
8PWRGD 20 -5V
9+5VSB 21 +5V
10 +12V 22 +5V
11 +12V 23 +5V
12 +3.3V 24 Ground
CPU_FAN: CPU Cooling FAN Power Connector
1GND System Ground
3 Sense Sensor
4 PWM PWM
Pin Signal Name Function
2+12V Power +12V
SYS_FAN: System Cooling FAN Power Connector
Pin Signal Name Function
1GND System Ground
2+12V Power +12V
3 Sense Sensor
2+3.3V 14 -12V

12
Installing the Motherboard
Power/Sleep/Message waiting LED
Connecting pins 2 and 4 to a single or dual-color, front panel mounted LED provides
power on/off, sleep, and message waiting indication.
Front Panel Header
The front panel header (F_PANEL1) provides a standard set of switch and LED
headers commonly found on ATX or micro-ATX cases. Refer to the table below for
information:
Pin Signal Function Pin Signal Function
1 HD_LED_P Hard disk LED (+) 2 FP PWR/SLP *MSG LED (+)
3 HD_LED_N Hard disk LED (-)
5 RST_SW_N Reset Switch (-)
7 RST_SW_P Reset Switch (+)
9 RSVD Reserved
4 FP PWR/SLP *MSG LED (-)
6 PWR_SW_P Power Switch (+)
8 PWR_SW_N Power Switch (-)
10 Key No pin
* MSG LED (dual color or single color)
Hard Drive Activity LED
Connecting pins 1 and 3 to a front panel mounted LED provides visual indication
that data is being read from or written to the hard drive. For the LED to function
properly, an IDE drive should be connected to the onboard IDE interface. The LED
will also show activity for devices connected to the SCSI (hard drive activity LED)
connector.
SPK1: Internal speaker
Pin Signal Name
1VCC
2Key
3NC
4Signal
Power Switch
Supporting the power on/off function requires connecting pins 6 and 8 to a momen-
tary-contact switch that is normally open. The switch should maintain contact for at
least 50 ms to signal the power supply to switch on or off. The time requirement is
due to internal de-bounce circuitry. After receiving a power on/off signal, at least two
seconds elapses before the power supply recognizes another on/off signal.
Reset Switch
Supporting the reset function requires connecting pin 5 and 7 to a momentary-
contact switch that is normally open. When the switch is closed, the board resets and
runs POST.

13
Installing the Motherboard
Installing Hardware
Installing the Processor
Caution: When installing a CPU heatsink and cooling fan make sure
that you DO NOT scratch the motherboard or any of the surface-
mount resistors with the clip of the cooling fan. If the clip of the cooling
fan scrapes across the motherboard, you may cause serious damage
to the motherboard or its components.
On most motherboards, there are small surface-mount resistors near
the processor socket, which may be damaged if the cooling fan is
carelessly installed.
Avoid using cooling fans with sharp edges on the fan casing and the
clips. Also, install the cooling fan in a well-lit work area so that you
can clearly see the motherboard and processor socket.
Before installing the Processor
This motherboard automatically determines the CPU clock frequency and system
bus frequency for the processor. You may be able to change these settings by making
changes to jumpers on the motherboard, or changing the settings in the system Setup
Utility. We strongly recommend that you do not over-clock processors or other
components to run faster than their rated speed.
This motherboard has an LGA775 socket. When choosing a processor, consider the
performance requirements of the system. Performance is based on the processor
design, the clock speed and system bus frequency of the processor, and the quantity
of internal cache memory and external cache memory.
Warning: Over-clocking components can adversely affect the reliabil-
ity of the system and introduce errors into your system. Over-clocking
can permanently damage the motherboard by generating excess heat
in components that are run beyond the rated limits.

14
Installing the Motherboard
A. Read and follow the instructions shown
on the sticker on the CPU cap.
B. Unload the cap
· Use thumb & forefinger to hold the
lifting tab of the cap.
· Lift the cap up and remove the cap
completely from the socket.
C. Open the load plate
· Use thumb & forefinger to hold the
hook of the lever, pushing down and
pulling aside unlock it.
· Lift up the lever.
· Use thumb to open the load plate. Be
careful not to touch the contacts.
D. Install the CPU on the socket
· Orientate CPU package to the socket.
Make sure you match triangle marker
to pin 1 location.
E. Close the load plate
· Slightly push down the load plate onto
the tongue side, and hook the lever.
· CPU is locked completely.
F. Apply thermal grease on top of the CPU.
G. Fasten the cooling fan supporting base
onto the CPU socket on the motherboard.
H. Make sure the CPU fan is plugged to the
CPU fan connector. Please refer to the
CPU cooling fan user’s manual for more
detail installation procedure.
CPU Installation Procedure
The following illustration shows CPU installation components.
1. To achieve better airflow rates and heat dissipation, we suggest
that you use a high quality fan with 3800 rpm at least. CPU fan and
heatsink installation procedures may vary with the type of CPU fan/
heatsink supplied. The form and size of fan/heatsink may also vary.
2. DO NOT remove the CPU cap from the socket before installing a
CPU.
3. Return Material Authorization (RMA) requests will be accepted
only if the motherboard comes with the cap on the LGA775 socket.