DFI BI G41-T33B User manual

USER'S MANUAL
Of
Intel
Ｇ 41 Express and ICH7 Chipset
Based
M/B for LGA775 Quad Core Ready
Intel Core Processor Family
Trademark:
* Specifications and Information contained in this documentation are furnished for information use only, and are subject to
change at any time without notice, and should not be construed as a commitment by manufacturer.

ii
CHAPTER 1 INTRODUCTION OF INTEL G41 MOTHERBOARD SERIES
1-1 FEATURES OF MOTHERBOARD ......................................................................................1
1-1.1 SPECIAL FEATURES OF MOTHERBOARD..................................................... 2
1-2 SPECIFICATION ..................................................................................................................... 3
1-3 ITEM CHECKLIST................................................................................................................. 4
1-4 LAYOUT DIAGRAM..............................................................................................................4
CHAPTER 2 HARDWARE INSTALLATION
2-1 INSTALL INTEL LAG775 SOCKET CPU.......................................................................... 5
2-2 INSTALL MEMORY............................................................................................................... 6
2-3 EXPANSION CARDS.............................................................................................................. 7
CHAPTER 3 CONNCTORS, HEADERS & JUMPERS SETTING
3-1 CONNECTORS........................................................................................................................ 7
3-2 HEADERS................................................................................................................................. 10
3-3 JUMPER SETTING................................................................................................................. 13
CHAPTER 4 USEFUL HELP
4-1 HOW TO UPDATE BIOS....................................................................................................... 15
4-2 TROUBLE SHOOTING.......................................................................................................... 15
Environmental Protection Announcement
Do not dispose this electronic device into the trash while discarding. To minimize pollution
and ensure environment protection of mother earth, please recycle.
TABLE OF CONTENT

1
Chapter 1
Introduction of Intel G41 Motherboard Series
1-1 Features of Motherboard
The G41 Express and ICH7 chipset motherboard series are based on Intel G41 Express chipset
and ICH7 chipsets technology which supports the innovative 45nm and 65nm Quad-Core,
Dual-Core Intel® Core 2 Quad, Core 2 Duo processors, Intel® Pentium Dual Core, Intel®
Celeron Dual Core Conroe processors and Intel® Celeron 400 Conroe-L processors.
The G41 Express and ICH7 chipset Based motherboard series deliver the revolutionary levels
of performance enabling vivid, high-definition experiences and multi-tasking responsiveness
from state-of-the-art Intel dual-core and quad-core technologies through the high bandwidth
of dual channel DDRIII 800 / 1066MHz system memories which are expandable to 4 GB and
the next generation PCI Express interface for the latest AMD and NVIDIA graphics card .
The G41 Express and ICH7 chipset motherboard series are absolutely the ultimate solution for
game enthusiasts and applications, and it also meets the demanding usage of computing of
gaming, multimedia entertainment and business applications.
The INTEL G41 Express and ICH7 chipset motherboard series are embedded with ICH7
chipset of providing four serial ATA2 interface of 3.0 Gb / s data transfer rate for four serial
ATA devices.
The G41 Express and ICH7 chipset Based motherboard provides Gigabit LAN function by using
the Realtek RTL8111DL PCI Gigabit LAN which supports 10M / 100M / 1Gbps data transfer
rate. Embedded 8-channel ALC888 HD Audio Codec is fully compatible with Sound Blaster
Pro®standards that offer you with the home cinema quality and absolutely software
compatibility.
The G41 Express chipset based motherboard series offer one PCI-Express2.0 x16 by 16lane
graphics slots which get 7 times of bandwidth more than AGP8X. This graphics slot offers 8
Gbyte/sec data transfer rate at each relative direction and up to 16Gbyte/sec concurrent
bandwidth at full speed. Two 32-bit PCI slots guarantee the rich connectivity for the I/O of
peripherals.
Embedded USB controllers as well as capability of expanding to 8 of USB2.0 functional ports
delivering 480Mb/s bandwidth of rich connectivity, these motherboards meet the future USB
demands which are also equipped with hardware monitor function on system to monitor and
protect your system and maintain your non-stop business computing.
Some special features---CPU Thermal Throttling/ CPU Smart Fan/ CPU Vcore X-shift/3D
Audio in this motherboard are designed for power user to use the over-clocking function in
more flexible ways. But please be caution that the over-clocking may cause the failure in
system reliability. This motherboard provides the guaranteed performance and meets the
demands of the next generation computing. But if you insist to gain more system performance
with variety possibilities of the components you choose, please be careful and make sure to

2
read the detailed descriptions of these value added product features, please get them in the
coming section.
1-1.1 Special Features of motherboard
CPU Thermal Throttling Technology--- (The CPU Overheat Protection Technology)
To prevent the increasing heat from damage of CPU or accidental shutdown while at high
workload, the CPU Thermal Throttling Technology will force CPU to enter partially idle
mode from 87.5% to 12.5% according to preset CPU operating temperature in BIOS (from 40
℃to 90℃). When the system senses the CPU operating temperature reaching the preset
value, the CPU operating bandwidth will be decreased to the preset idle percentage to cool
down the processor. When at throttling mode the beeper sound can be optionally selected to
indicate it is in working.
CPU Smart Fan--- The Noise Management System
It’s never been a good idea to gain the performance of your system by sacrificing its acoustics.
CPU Smart Fan Noise Management System is the answer to control the noise level needed for
now-a-day’s high performance computing system. The system will automatically increase the
fan speed when CPU operating loading is high, after the CPU is in normal operating condition,
the system will low down the fan speed for the silent operating environment. The system can
provide the much longer life cycle for both CPU and the system fans for game use and
business requirements.
CPU Vcore X-Shift--- Shift to Higher Performance
The CPU voltage can be adjusted up by 8 stages for the precisely over-clocking of extra
demanding computing performance.
3D Audio
OP with two-stage Butterworth filter and quadruple noninverting amplifier enhances bass
effect under the 100MHz range to perfect audio effect, brings you stunning shock experience
in video game, true-to-life simulated feeling when watching films and the greatest touch as
that in the concert.

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1-2 Specification
Spec Description
Design zMicro-ATX form factor 4 layers PCB size: 24.5x21.0cm
Chipset zIntel G41 Express Chipset
zIntel ICH7 chipset
CPU Socket
LGA775
zSupport 45nm and 65nm Quad-Core, Dual-Core Intel® Core 2
Quad, Core 2 Duo processors, Intel® Pentium Dual Core,
Intel® Celeron Dual Core Conroe processors and Intel®
Celeron 400 Conroe-L processors 775-Land LGA Package
utilizes Flip-Chip Land Grid Array (FCLGA) package processor
zSupport FSB Frequency 1333MHz
Memory Socket
zDDR3 Module socket x 2
zSupport 2pcs DDRIII 800 /DDRIII 1066MHz DDRIII modules
expandable to 4 GB
zSupport Dual channel function
Expansion Slot zPCI-Express x16by16lane slot 1pcs
z32-bit PCI slot x 2 pcs
Integrated Serial ATA2 zThe Intel ICH7 supports four Serial ATA ports provide 3.0
Gb/sec data transfer rate.
Gigabit LAN
zIntegrated Realtek RTL8111DL PCI Gigabit LAN function.
zSupports Fast Ethernet LAN function provide 10Mb/100Mb/
1Gb /s data transfer rate.
8CH-Audio
zRealtekALC888 8-channel HD Audio Codec integrated
zSupport 8-channel 3D surround & Positioning Audio
zAudio driver and utility included
BIOS zAward 8MB DIP Flash ROM
Multi I/O
zPS/2 keyboard and PS/2 mouse connectors
zS/PDIF Out connector x1
zVGA connector x1
zHDMI connector x1 (HDMI and DVI connector can not be used
at the same time)
zDVI connector x1
zUSB2.0 port x 4 and headers x2
zRJ45 LAN connector x1
zAudio connectorx1 (8CH Audio)
zSATA Connector x4
zHDMI-SPDIF header x1
zIR header
zSerial Port headerx1
zParallel header x1

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1-3 Item Checklist
5Intel G41 Express and ICH7 chipset based Motherboard
5User’s Manual
5CD for motherboard utilities
5SATA Cable
5I/O Back Panel Shield
1-4 Layout Diagram
ATX 12V Power Connector
Front Panel
Connector
ATX Power
Connector
CPU Socket mPGA775
Power Led &
Speaker Header
DDRIII
DIMMx2
USB Port
(USB2, USB3)
IR Connector
32-bit PCI Slot
HDMI Connector
K
B／MS Power ON
Jumper (JP1)
USB Port
8-CH Audio Connector
Front Panel Audio
Realtek RTL8111DL PCI –E
LAN Controller
ATA100
IDE Connector
Serial-ATA2
Connector
(SATA1, 2, 3, 4)
CPU FAN
RJ45 Over
USB Port
PCI Express x16by16lane
CD Audio In
Parallel Connector
Intel G41Express
Chipset
SYS FAN2
PS2 KB/Mouse
Port
SPDIF-OUT Connector
VGA and DVI Connecto
r
ALC888 HD Audio
HDMI-SPDIF Connector
COM Connector
SYSFAN1
ICH7 Controller
3D audio chip

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Chapter 2
Hardware Installation
WARNING! Turn off your power when installing system components. Failure to do so
may cause severe damage to both your motherboard and the components.
2-1 Install Intel LGA775 Socket CPU
This motherboard provides a 775-pin DIP, LGA775 Land Grid Array socket, referred to as
the LGA775 socket supports Intel Pentium 4 processor in the 775 Pin package utilizes
Flip-Chip Land Grid Array (FC-LGA) package technology.
The CPU that comes with the motherboard should have a cooling FAN attached to prevent
overheating. If this is not the case, then purchase a correct cooling FAN before you turn on
your system.
NOTED! 1.Be sure that there is sufficient air circulation across the processor’s heat
sink and CPU cooling FAN is working correctly, otherwise it may cause
the processor and motherboard overheat and damage, you may install an
auxiliary cooling FAN, if necessary.
2. We suggest to use CPU under 65W power consumption.
To install a CPU, first turn off your system and remove its cover. Locate the LGA775 socket
and open it by first pulling the level sideways away from the socket then upward to a
90-degree angle. Insert the CPU with the correct orientation as shown below. The notched
corner should point toward the end of the level. Because the CPU has a corner pin for two of
the four corners, the CPU will only fit in the orientation as shown.
When you install the CPU into the LGA775 socket, there’s no force required CPU insertion;
then presses the level to locate position slightly without any extra force.
CPU LGA775 Socket
Colden Arrow
LGA775

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2-2 Install Memory
The motherboards provide two 240-pin DDRIII DUAL INLINE MEMORY MODULES
(DIMM) slots for DDRIII memory expansion available from minimum memory size of 1GB
to maximum memory size of 4GB DDRII SDRAM.
Valid Memory Configurations of 2-DIMM Design Motherboard
Memory Module 240-Pin DIMM PCS Total Memory
DIMM1 DDRIII800/DDRIII1066 X1 1GB∼2 GB
DIMM2 DDRIII800/DDRIII1066 X1 1GB∼2 GB
Total System Memory (Max. 4GB) 2
1GB∼4 GB
Recommend DIMM Module Combination
1. One DIMM Module ----Plug in DIMM1
2. Two DIMM Modules---Plug in DIMM1 and DIMM2 for Dual channel function
For Dual channel Limited!
1. Dual channel function only supports when 2 DIMM Modules plug in either both DIMM1 &
DIMM2.
2. DIMM1 & DIMM2 must be the same type, the same size, and the same frequency for dual
channel function.
Generally, installing DDR SDRAM modules to your motherboard is very easy, you can refer
to figure 2-4 to see what a 240-Pin DDRIII 800/1066 SDRAM module looks like.
NOTE! When you install DIMM module fully into the DIMM socket the eject tab should
be locked into the DIMM module very firmly and fit into its indention on both
sides
Fi
g
ure 2-4

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2-3 Expansion Cards
The G41 Express chipset based motherboard series offer one PCI-Express2.0 x16 by 16lane
graphics slots which get 7 times of bandwidth more than AGP8X. This graphics slot offers 8
Gbyte/sec data transfer rate at each relative direction and up to 16Gbyte/sec concurrent
bandwidth at full speed. Two 32-bit PCI slots guarantee the rich connectivity for the I/O of
peripherals.
PCI-E 2.0 x16 Slot
32-bit PCI Slot

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Chapter 3
Connectors, Headers & Jumpers Setting
3-1 Connectors
(1) Power Connector (24-pinblock): ATXPWR
ATX Power Supply connector: This is a new defined 24-pins connector that usually
comes with ATX case. The ATX Power Supply allows using soft power on momentary
switch that connect from the front panel switch to 2-pins Power On jumper pole on the
motherboard. When the power switch on the back of the ATX power supply turned on,
the full power will not come into the system board until the front panel switch is
momentarily pressed. Press this switch again will turn off the power to the system
board.
** We recommend that you use an ATX 12V Specification 2.0-compliant power supply
unit (PSU) with a minimum of 350W power rating. This type has 24-pin and 4-pin
power plugs.
** If you intend to use a PSU with 20-pin and 4-pin power plugs, make sure that the 20-pin
power plug can provide at least 15A on +12V and the power supply unit has a minimum
power rating of 350W. The system may become unstable or may not boot up if the
power is inadequate.
(2) ATX 12V Power Connector (4-pin block) : ATX12V
This is a new defined 4-pins connector that usually comes with ATX Power Supply. The
ATX Power Supply which fully supports AM2 processor must including this connector
for support extra 12V voltage to maintain system power consumption. Without this
connector might cause system unstable because the power supply can not provide
sufficient current for system.
(3) PS/2 Mouse & PS/2 Keyboard Connector: KB
The connectors are for PS/2 keyboard and PS/2 Mouse
(4) USB Port connector: USB port from USB1/ UL1
The connectors are 4-pin connectors that connect USB devices to the system board.
(5) LAN Port connector: RJ-45 connector from UL1
Pin 1
ROW1 ROW2
24-Pin
ROW1 ROW2
Pin 1
20-Pin
PIN ROW1 ROW2
1 3.3V 3.3V
2 3.3V -12V
3 GND GND
4 5V Soft Power On
5 GND GND
6 5V GND
7 GND GND
8 Power OK -5V
9 +5V (for Soft Logic) +5V
10 +12V +5V
11 +12V +5V
12 +3V GND

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This connector is standard RJ-45 connector for Network. The connector support
10M/100Mbps/1Gb data transfer rate.
(6) Audio Line-In, Lin-Out, MIC, RS-OUT, CS-OUT, SS-OUT Connector : AUDIO
These Connectors are 6 Phone-Jack for LINE-OUT, LINE-IN, MIC, RS-OUT, CS-OUT,
SS-OUT audio connections.
Line-in: (BLUE) Audio input to sound chip
Line-out: (GREEN) Audio output to speaker
MIC: (PINK) Microphone Connector
RS-OUT: (BLACK) Rear-Surround audio output
CS-OUT: (ORANGE) Center/ Subwoofer audio output
SS-OUT: (GRAY) Side-Surround audio output
(7) D-Sub 15-pin Connector: VGA
VGA is the 15-pin D-Subminiature female connector; it is for the display devices, such
as the CRT monitor, LCD monitor and so on.
(8) High-Definition Multimedia Interface: HDMI
This point-to-point interface is for audio and video signals designed as a single-cable
solution for home theater and consumer electronics equipment.
(9) SPDIF Out connectors: SPDIF_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.
plugs at other end to the floppy drives.
USB Connector
PS/2 Mouse
PS/2 Keyboard
Surrback
Line-Out
T
Surround
MIC-IN
VGA Connector
DVI Connector
Line-IN
HDMI Connector
RJ-45
LAN
SPDIF-OUT
Connector
CEN/BASS

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(10) Serial-ATA Port connector: SATA1~SATA4
These connectors support the provided Serial ATA and Serial ATA2 IDE hard disk cable
to connecting the motherboard and serial ATA hard disk.
3-2 Headers
(1) Line-Out/MIC Header for Front Panel (9-pin): FP_AUDIO
These headers connect to Front Panel Line-out, MIC connector with cable.
(2) USB Port Headers (9-pin) :
USB2 / USB3
These headers are used for connecting the additional USB port plug. By attaching an
option USB cable, your can be provided with two additional USB plugs affixed to the
back panel.
Line-Out, MIC Headers
AUDIO
Pin 1
Lineout2-L Lineout2-R
Sense-FB
Audio-GND
LINE2-JD
Audio-JD
2
9
10
KEY
MIC2-L
MIC2-JD
MIC2-R
Serial-ATA1 & 2 Compatible Connectors
SATA3
SATA4
SATA1
SATA2
USB Port Headers
Pin1
USB2/USB3
VCC
-DATA
GND
+DATA
VCC
OC
-DATA
GND
+DATA

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(3) Speaker connector: SPEAK
This 4-pin connector connects to the case-mounted speaker. See the figure below.
(4) Power LED: PWR LED
The Power LED is light on while the system power is on. Connect the Power LED
from the system case to this pin.
(5) IDE Activity LED: HD LED
This connector connects to the hard disk activity indicator light on the case.
(6) Reset switch lead: RESET
This 2-pin connector connects to the case-mounted reset switch for rebooting your
computer without having to turn off your power switch. This is a preferred method of
rebooting in order to prolong the lift of the system’s power supply. See the figure
below.
(7) Power switch: PWR BTN
This 2-pin connector connects to the case-mounted power switch to power ON/OFF the
system.
(8) FAN Power Headers: SYSFAN1, SYSFAN2 (3-pin), CPUFAN (4-pin)
These connectors support cooling fans of 350mA (4.2 Watts) or less, depending on the
fan manufacturer, the wire and plug may be different. The red wire should be positive,
while the black should be ground. Connect the fan’s plug to the board taking into
consideration the polarity of connector.
FAN Headers
CPUFAN
14
GND
+12V
CPUFANIN
CPUFANOUT
SYSFAN1
13
SYSFAN2
1
3
System Case Connections
HDLED
RESET
VCC5
GND
VCC5 PWR LED
PWRBTN
PWRBTN
PWRLED
HDDLE
RSTSW
NC GND
JW FP
Pin 1
SPEAK
SPKR
GND
NC
VCC5
Pin 1
PWRLED
Pin 1

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(9) CD Audio-In Headers (4-pin): CDIN1
CDIN are the connectors for CD-Audio Input signal. Please connect it to CD-ROM
CD-Audio output connector.
(10) Serial COM Port Header: COM1
COM1 is the 9-pin block pin-header.
(11)Parallel Port header (25-pin): PARALLEL
The onboard parallel port header is a 25-pin connector for connecting devices such as
old-fashioned printer.
(12) IR infrared module Headers (5-pin): IR
This connector supports the optional wireless transmitting and receiving infrared
module. You must configure the setting through the BIOS setup to use the IR function.
CD Audio-In Headers
CDIN 1 4
Serial COM Port 9-pin Block
Pin1

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IR infrared module Headers
IR
Pin1
GND
IRRX
NC
VCC5
IRTX
2
5
6
(13) HDMI_SPDIF_Out header: SPDIF_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. Some of the VGA Card need connect
SPDIF_IN Connector, so its HDMI Port can make sounds.
3-3 Jumper Setting
(1) Keyboard/Mouse/USB function Enabled/Disabled: JP1
Keyboard/Mouse & USB Power On Setting
2-3 Closed KB/MS/ USB Power ON Enabled
JP1JP1
1-2 Closed KB/MS/ USB Power ON Disable
(Default)
12
HDMI_SPDIF_OUT GND
SPDIF

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(2) USB function Enabled/Disabled: JP2
USB Power On Setting
2-3 Closed USB Power ON Enabled
JP2JP2
1-2 Closed USB Power ON Disable (Default)
(3) CMOS RAM Clear (3-pin): JBAT
A battery must be used to retain the motherboard configuration in CMOS RAM short 1-2
pins of JBAT to store the CMOS data.
To clear the CMOS, follow the procedure below:
1. Turn off the system and unplug the AC power
2. Remove ATX power cable from ATX power connector
3. Locate JBAT and short pins 2-3 for a few seconds
4. Return JBAT to its normal setting by shorting pins 1-2
5. Connect ATX power cable back to ATX power connector
Note: When should clear CMOS
1. Troubleshooting
2. Forget password
3. After over clocking system boot fail
CMOS RAM Clear Setting
2-3 closed Clear CMOS
JBAT JBAT
1-2 closed Normal (Default)
1
3
1
3

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Chapter 4
Useful Help
4-1 How to Upgrade BIOS
STEP 1. Prepare a bootable floppy disk. (You may make one by click START click RUN
type SYS A: click OK)
STEP 2. Download upgrade tools and the latest BIOS files of the motherboard from official
website and then make a copy of it to your bootable floppy disk after
decompressing these files
STEP 3. Insert the disk into A: ,start your computer and then type in
“A:\xxxxxx.BAT”(xxxxxxx being the file name of the latest BIOS )
STEP 4. Type Enter to update and flash the BIOS. The system will restart automatically
when BIOS is upgraded.
4-2 Trouble Shooting
Problem Solution
No power to the system to the all power light
don’t illuminate, fan inside power supply doesn’t
turn on.
1. Make sure power cable is security plugged in.
2. Replace cable. 3. Contact technical support.
System inoperative. Keyboard lights are on,
power indicator lights are lit, and hard drive is
spinning.
Using ever pressure on both ends of the DIMM ,
press down firmly until the module snaps into
places.
System doesn’t boot from hard disk drive, can be
booted from optical drive. 1. Check cable running from disk to disk controller board. .Make sure both ends are
securely plugged in, check the drive type in the
standard CMOS setup. 2. Backing up the hard
drive is extremely important .All hard disks are
capable of breaking down at any time.
System only boots from optical drive .Hard disk
can be read and applications can be used but
booting from hard disk is impossible.
1. Back up date and applications files. 2.
Reformat the hard drive. Reinstall applications
and date using backup disks.
Screen message says “Invalid Configuration” or
“CMOS Failure” Review system‘s equipment .Make sure correct information on is in setup.
Can not boot system after installing second hard
drive. 1. Set master /slave jumpers correctly. 2. Run SETUP program and select correct drive types.
Call the drive manufacture for compatibility with
other drives.