Intel G41 Express Chipset User manual

USER'S MANUAL
Of
Intel G41 Express Chipset
&
Intel ICH7 Chipset
Based
M/B for LGA 775 Quad Core Ready
Intel Core Processor Family
No. G03-MI5G41SGMD2F
Rev: 5.0
Release date: Nov., 2009
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
Environmental Safety Instruction
zAvoid the dusty, humidity and temperature extremes. Do not place the product in any
area where it may become wet.
z0 to 40 centigrade is the suitable temperature. (The figure comes from the request of
the main chipset)
zGenerally speaking, dramatic changes in temperature may lead to contact malfunction
and crackles due to constant thermal expansion and contraction from the welding
spots’ that connect components and PCB. Computer should go through an adaptive
phase before it boots when it is moved from a cold environment to a warmer one to
avoid condensation phenomenon. These water drops attached on PCB or the surface
of the components can bring about phenomena as minor as computer instability
resulted from corrosion and oxidation from components and PCB or as major as short
circuit that can burn the components. Suggest starting the computer until the
temperature goes up.
zThe increasing temperature of the capacitor may decrease the life of computer. Using
the close case may decrease the life of other device because the higher temperature in
the inner of the case.
zAttention to the heat sink when you over-clocking. The higher temperature may
decrease the life of the device and burned the capacitor.
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.

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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 LGA 775 SUPPORTED INTEL PROCESSOR...........................................6
2-2 INSTALL MEMORY ....................................................................................................6
2-3 EXPANSION CARDS..................................................................................................8
CHAPTER 3 CONNCTORS, HEADERS & JUMPERS SETTING
3-1 CONNECTORS ...........................................................................................................9
3-2 HEADERS ...................................................................................................................12
3-3 JUPPER SETTING......................................................................................................15
CHAPTER 4 USEFUL HELP
4-1 HOW TO UPDATE BIOS ............................................................................................17
4-2 TROUBLE SHOOTING...............................................................................................17
TABLE OF CONTENT

1
Chapter 1
Introduction of Intel G41 Motherboard Series
1-1 Features of motherboard
The Intel G41 chipset motherboard series are based on the latest Intel G41 Express
Chipset and Intel ICH7 Chipset technology which supports the innovative 65nm and
90nm Intel® Pentium® Dual Core Processor，Intel® Core 2 Quad, Intel® Core 2 Duo®
(Code Name: Conroe) Processor with Intel® Hyper-Threading Technology and fully
supports the future 45nm processors. The motherboard is optimized to deliver innovative
features and professional desktop platform solution with the advantages of the new
generation dual core Intel® Core 2 Duo® Processor for those who demand the best
experience of personal computing.
The motherboards implement Intel G41 Express Chipset which supports Front Side
Bus 1333MHz of data transferring. The model MI5-G41SGMD2-LF supports
dual-channel DDRII 667/DDRII 800 memory module with capacity expandable to 8GB
while MI5-G41SGMD3-LF supports dual-channel DDRIII 800 /DDRIII 1066MHz RAM
Module expandable to 8GB. The motherboard is embedded with ICH7 chipset of
providing one parallel Ultra ATA 100 interface for one IDE drives and four serial ATA2
interface of 3Gb / s data transfer rate for four serial ATA devices.
The G41 motherboard series offer one PCI-Express x16 graphics slot of 8Gbyte/sec
data transfer rate at each relative direction which gets 7 times of bandwidth more than
AGP 8X and up to 16Gbyte/sec peak concurrent bandwidth at full speed to guarantee
the ultimate GPU computing performance. One PCI Express x1 I/O slots and two
32-bit PCI slots guarantee the rich connectivity for the I/O of peripherals. The
motherboards are designed of tackling the profuse multimedia requirements
nowadays.
The motherboards provide 10/100 Ethernet LAN function by using the PCI-E megabit
LAN. The embedded Realtek ALC662 chipset is fully compatible with Sound Blaster
Pro standards providing HD audio 6-CH CODEC offers you with the home cinema
quality and satisfying software compatibility.
Embedded USB controller as well as capability of expanding to 8 of USB2.0 functional
ports delivering 480Mb/s of rich connectivity, these motherboards meet the demands
of future USB peripherals 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 Vcore 7-shift /OC-CON 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 maybe causes the fails in
system reliabilities. 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

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be careful and make sure to 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 Vcore 7-Shift--- (Shift to Higher Performance)
The CPU voltage can be adjusted up by 7 steps for the precisely over-clocking of
extra demanding computing performance.
Solid Capacitors ---（High-polymer Solid Electrolysis Aluminum Capacitors）
The working temperature is from 55 degrees Centigrade below zero to 125 degrees
Centigrade, Solid capacitors possess superior physical characteristics that can be
while reducing the working temperature between 20 degrees Centigrade each time,
intact extension 10 times of effective product operation lives, at not rising degrees
Centigrade of working temperatures each time a relative one, life of product decline
10% only too.

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1-2 Specification
Spec Description
Design zMicro ATX form factor 4 layers PCB size: 24.5*18cm
Chipset zIntel G41 Memory Controller Hub (MCH) Chipset
zIntel 82801GB I/O Controller Hub (ICH7) Chipset
CPU Socket
(LGA775 )
zSupports the innovative 65nm and 90nm Intel® Pentium® Dual Core
Processor，Intel® Core 2 Quad, Intel® Core 2 Duo® (Code Name:
Conroe) Processor with Intel® Hyper-Threading Technology and
fully supports the future 45nm processors. Suggest the power of the
CPU should below 65w
zSupport FSB Frequency 1333 / 1066 / 800MHz
Memory Socket
z240-pin DDR2 RAM module socket x 2 for MI5-G41SGMD2-LF
zMI5-G41SGMD2-LF supports dual-channel DDR2 667 /DDR2
800MHz RAM Module expandable to 8GB.
z240-pin DDR3 RAM module socket x 2 for MI5-G41SGMD3-LF
zMI5-G41SGMD3-LF supports dual-channel DDR3 800
/DDR31066MHz RAM Module expandable to 8GB.
Expansion Slots zPCI-Express x16 slot 1pcs.
zPCI-Express x1 slot 1pcs
z32-bit PCI slot 2pcs
Integrate IDE and
Serial ATA2
zOne PCI IDE controller that supports PCI Bus Mastering, ATA
PIO/DMA and the ULTRA DMA 33/66/100 functions that deliver the
data transfer rate up to 100 MB/s; four Serial ATA2 ports each
provides 3.0 Gb /sec data transfer rate.
Integrated VGA zIntegrated Graphic Media Accelerator 4500
LAN
zIntegrated PCI-E 10/100 LAN chip
zSupport Fast Ethernet LAN function of providing 10Mb / 100Mb
data transfer rate
HD Audio
zRealtek ALC662 Azalia 6-channel Audio Codec integrated
zAudio driver and utility included
BIOS zAMI 8MB DIP Flash ROM
Multi I/O
zPS/2 keyboard and PS/2 mouse connectors
zFloppy disk drive connector x1
zParallel header x1 / Serial port x1
zD-Sub 15-pin VGA Conn.
zUSB 2.0 connector x 4, headers x2
zHDMI-SPDIF header x1
zSATA Connector x4
zRJ45 LAN connector x1
zAudio connector x1 (Line-in, Line-out, MIC)

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1-3 Item Checklist
5Intel G41 Platform Processor Chipset based motherboard
5DVD for motherboard utilities
5Hard disk cable
5User’s Manual
5Back panel
1-4 Layout Diagram
Diagram is for MI5-G41SGMD2-LF
ATX 12V Power
Connector
Front Panel Header
ATX Power
Connector
CPU Socket mPGA775
Intel 82801GB
ICH Chipset Power Led &
Speaker Header
DDR2
DIMMx2
ALC662 HD
Audio Codec
32-bit PCI Slot
COM
K
B／MS Power ON
Jumper (JP1)
USB Port
6-CH
Audio Connector
SYSFAN1
Front Panel Audio
Megabit LAN Chip
IDE Connector
Serial-ATA2
Connector
(SATA1, 2, 3, 4)
CPU FAN
PCI Express x1
VGA
RJ45 Ove
r
USB Port
PCI Express x16
CD Audio In
Floppy Connector
Intel G41Express
Chipset
SYS FAN2
Parallel Header
USB Power ON Jumper
(JP2)
PS2 KB/Mouse
Port
USB Connector
HDMI-SPDIF Header

5
Diagram is for MI5-G41SGMD3-LF
ATX 12V Power
Connector
Front Panel
Header
ATX Power
Connector
CPU Socket mPGA775
Intel 82801GB
ICH Chipset
Power Led &
Speaker Header
DDR3
DIMMx2
ALC662
HD Audio Codec
32-bit PCI Slot
COM
K
B／MS Power ON
Jumper (JP1)
USB Port SYSFAN1
Front Panel Audio
Megabit LAN Chip
IDE Connector
Serial-ATA2
Connector
(SATA1, 2, 3, 4)
CPU FAN
PCI Express x1
VGA
RJ45 Ove
r
USB Port
PCI Express x16
CD Audio In
Floppy Connector
Intel G41Express
Chipset
SYS FAN2
Parallel Header
USB Power ON Jumper (JP2)
PS2 KB/Mouse
Port
USB Header
HDMI-SPDIF Header
6-CH
Audio Connector

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Chapter 2
Hardware Installation
2-1 Install LGA 775 Supported Intel Processor
This motherboard provides a 775-pin surface mount, LGA775 Land Grid Array socket,
referred to as the LGA775 socket supports Intel Pentium Dual Core 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.
WARNING! 1.Be sure that there is sufficient air circulation across the processor’s
heatsink 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
. Suggest the power of CPU should below 65w.
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.
CPU LGA775 Socket
Colden Arrow
LGA775
2-2 Install Memory
Model MI5-G41SGMD2-LF provides two 240-pin DDR2 DUAL INLINE MEMORY
MODULES (DIMM) socket for DDR2 memory expansion to maximum memory
volume of 8GB DDR2 SDRAM.
Valid Memory Configuration for MI5-G41SGMD2-LF
Bank 240-Pin DIMM PCS Total Memory
Bank 0, 1 (DIMM1) DDR2 667/ 800 X1 4GB
Bank 2, 3 (DIMM2) DDR2 667/ 800 X1 4GB
Total Memory (Max.4GB)
2 8GB

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Model MI5-G41SGMD3-LF provides two 240-pin DDR3 DUAL INLINE MEMORY
MODULES (DIMM) socket for DDR3 memory expansion to maximum memory
volume of 8GB DDR3 SDRAM.
Valid Memory Configuration for MI5-G41SGMD3-LF
Bank 240-Pin DIMM PCS Total Memory
Bank 0, 1 (DIMM1) DDR3 800/ DDR3 1066 X1 4GB
Bank 2, 3 (DIMM2) DDR3 800/ DDR3 1066 X1 4GB
Total Memory (Max.4GB)
2 8GB
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, same size, and same frequency for dual
channel function.
Install memory modules to your motherboard is not difficult, you can refer to figure
below to see how to install a memory module.
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.