IEI Technology IMB-G41A User manual

IMB-G41A Micro-ATX Motherboard
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IEI Technology Corp.
User Manual
MODEL:
IMB-G41A
MicroATX LGA775 Motherboard for Intel® Core™ 2
Duo/Quad/Extreme CPU, 800/1066/1333MHz FSB, VGA, LAN,
SATA, IDE, Parallel port, PCI, PCIe x1, PCIe x16, USB, HD
Audio, RoHS Compliant
Rev. 1.00 – 1 February, 2010

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Revision
Date Version Changes
1 February, 2010 1.00 Initial release

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Copyright
COPYRIGHT NOTICE
The information in this document is subject to change without prior notice in order to
improve reliability, design and function and does not represent a commitment on the part
of the manufacturer.
In no event will the manufacturer be liable for direct, indirect, special, incidental, or
consequential damages arising out of the use or inability to use the product or
documentation, even if advised of the possibility of such damages.
This document contains proprietary information protected by copyright. All rights are
reserved. No part of this manual may be reproduced by any mechanical, electronic, or
other means in any form without prior written permission of the manufacturer.
TRADEMARKS
All registered trademarks and product names mentioned herein are used for identification
purposes only and may be trademarks and/or registered trademarks of their respective
owners.

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Table of Contents
1 INTRODUCTION.......................................................................................................... 1
1.1 INTRODUCTION........................................................................................................... 2
1.2 BENEFITS ................................................................................................................... 2
1.3 FEATURES................................................................................................................... 3
1.4 CONNECTORS ............................................................................................................. 4
1.5 DIMENSIONS............................................................................................................... 5
1.6 DATA FLOW................................................................................................................ 6
1.7 TECHNICAL SPECIFICATIONS ...................................................................................... 7
2 PACKING LIST............................................................................................................. 9
2.1ANTI-STATIC PRECAUTIONS...................................................................................... 10
2.2 UNPACKING PRECAUTIONS....................................................................................... 10
2.3 PACKING LIST............................................................................................................11
2.4 OPTIONAL ITEMS...................................................................................................... 12
3 CONNECTORS ........................................................................................................... 14
3.1 PERIPHERAL INTERFACE CONNECTORS..................................................................... 15
3.1.1 IMB-G41A Layout............................................................................................ 15
3.1.2 Peripheral Interface Connectors ..................................................................... 16
3.1.3 External Interface Panel Connectors............................................................... 17
3.2 INTERNAL PERIPHERAL CONNECTORS...................................................................... 17
3.2.1 ATX Power Connector ..................................................................................... 17
3.2.2 CD-In Connector ............................................................................................. 19
3.2.3 CPU Fan Connector........................................................................................ 20
3.2.4 CPU Power Input Connector........................................................................... 21
3.2.5 Digital I/O Connector...................................................................................... 22
3.2.6 Front Panel Audio Connector.......................................................................... 23
3.2.7 Front Panel Connector .................................................................................... 24
3.2.8 Infrared Interface Connector........................................................................... 25
3.2.9 Memory Card Slot............................................................................................ 26
3.2.10 Northbridge Fan Connector .......................................................................... 27

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3.2.11 Parallel ATA (IDE) Connector....................................................................... 28
3.2.12 PCI Card Slot................................................................................................. 29
3.2.13 PCI Express Power........................................................................................ 30
3.2.14 PCI Express x1 Slot........................................................................................ 31
3.2.15 PCI Express x16 Slot...................................................................................... 33
3.2.16 SATA Drive Connectors ................................................................................. 35
3.2.17 Serial Port Connector, RS-232/422/485 ........................................................ 36
3.2.18 Serial Port Connectors, RS-232..................................................................... 37
3.2.19 S/PDIF Connector ......................................................................................... 38
3.2.20 System Fan Connector................................................................................... 39
3.2.21 USB Connectors............................................................................................. 40
3.3 EXTERNAL PERIPHERAL INTERFACE CONNECTOR PANEL ......................................... 41
3.3.1 Audio Connector .............................................................................................. 41
3.3.2 Keyboard/Mouse Connector............................................................................ 42
3.3.3 LAN Connector ................................................................................................ 43
3.3.4 Parallel Port Connector .................................................................................. 43
3.3.5 Serial Port Connectors (COM1)...................................................................... 44
3.3.6 USB Connector ................................................................................................ 45
3.3.7 VGA Connector................................................................................................ 46
4 INSTALLATION ......................................................................................................... 47
4.1ANTI-STATIC PRECAUTIONS...................................................................................... 48
4.2 INSTALLATION CONSIDERATIONS.............................................................................. 48
4.2.1 Socket LGA775 CPU Installation.................................................................... 50
4.2.2 Socket LGA775 Cooling Kit Installation ......................................................... 53
4.2.3 DIMM Installation........................................................................................... 55
4.3 JUMPER SETTINGS .................................................................................................... 56
4.3.1 AT/ATX Power Mode ....................................................................................... 57
4.3.2 Clear CMOS Jumper........................................................................................ 57
4.3.3 COM Pin 9 Setting Jumper (COM7~COM10) ................................................ 58
4.3.4 COM Pin 9 Setting Jumper (COM7~COM10) ................................................ 59
4.4 INTERNAL PERIPHERAL DEVICE CONNECTIONS........................................................ 60
4.4.1 SATA Drive Connection ................................................................................... 60
4.4.2 USB Cable (Dual Port) with Slot Bracket (Optional) ..................................... 62
4.5 EXTERNAL PERIPHERAL INTERFACE CONNECTION ................................................... 63

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4.5.1 Audio Connector .............................................................................................. 63
4.5.2 LAN Connection............................................................................................... 64
4.5.3 Parallel Device Connection............................................................................. 65
4.5.4 PS/2 Keyboard and Mouse Connection........................................................... 66
4.5.5 Serial Device Connection ................................................................................ 67
4.5.6 USB Connection (Dual Connector)................................................................. 68
4.5.7 VGA Monitor Connection ................................................................................ 69
4.6 SOFTWARE INSTALLATION ........................................................................................ 70
5 BIOS.............................................................................................................................. 72
5.1 INTRODUCTION......................................................................................................... 73
5.1.1 Starting Setup................................................................................................... 73
5.1.2 Using Setup...................................................................................................... 73
5.1.3 Getting Help..................................................................................................... 74
5.1.4 Unable to Reboot after Configuration Changes.............................................. 74
5.1.5 BIOS Menu Bar................................................................................................ 74
5.2 MAIN........................................................................................................................ 75
5.3ADVANCED............................................................................................................... 76
5.3.1 CPU Configuration.......................................................................................... 77
5.3.2 IDE Configuration........................................................................................... 78
5.3.2.1 IDE Master, IDE Slave ............................................................................. 80
5.3.3 Super IO Configuration ................................................................................... 85
5.3.4 Hardware Health Configuration...................................................................... 95
5.3.5 Power Configuration ....................................................................................... 97
5.3.5.1 ACPI Settings............................................................................................ 98
5.3.5.2 APM Configuration................................................................................... 99
5.3.6 Remote Access Configuration........................................................................ 101
5.3.7 USB Configuration......................................................................................... 104
5.4 PCI/PNP................................................................................................................. 106
5.5 BOOT...................................................................................................................... 108
5.5.1 Boot Settings Configuration........................................................................... 109
5.5.2 Boot Device Priority.......................................................................................111
5.5.3 Hard Disk Drives............................................................................................112
5.5.4 Removable Drives...........................................................................................113
5.5.5 CD/DVD Drives..............................................................................................113

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5.6 SECURITY................................................................................................................114
5.7 CHIPSET ..................................................................................................................115
5.7.1 Northbridge Configuration.............................................................................116
5.7.2 Southbridge Configuration .............................................................................118
5.8 EXIT........................................................................................................................119
A BIOS OPTIONS ........................................................................................................ 121
B TERMINOLOGY...................................................................................................... 125
C DIGITAL I/O INTERFACE..................................................................................... 129
C.1 INTRODUCTION...................................................................................................... 130
C.2 DIO CONNECTOR PINOUTS.................................................................................... 130
C.3ASSEMBLY LANGUAGE SAMPLES........................................................................... 130
C.3.1 Enable the DIO Input Function..................................................................... 130
C.3.2 Enable the DIO Output Function.................................................................. 130
D WATCHDOG TIMER .............................................................................................. 131
E COMPATIBILITY.................................................................................................... 134
E.1 COMPATIBLE OPERATING SYSTEMS........................................................................ 135
E.2 COMPATIBLE PROCESSORS ..................................................................................... 135
F HAZARDOUS MATERIALS DISCLOSURE........................................................ 136
F.1 HAZARDOUS MATERIALS DISCLOSURE TABLE FOR IPB PRODUCTS CERTIFIED AS
ROHS COMPLIANT UNDER 2002/95/EC WITHOUT MERCURY ..................................... 137

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List of Figures
Figure 1-1: IMB-G41A.....................................................................................................................2
Figure 1-2: Connectors ..................................................................................................................4
Figure 1-3: IMB-G41A Dimensions (mm)......................................................................................5
Figure 1-4: Data Flow Diagram......................................................................................................6
Figure 3-1: Connectors and Jumpers.........................................................................................15
Figure 3-2: ATX Power Connector Pinout Locations................................................................18
Figure 3-3: Audio CD In Connector Pinouts (4-pin)..................................................................19
Figure 3-4: CPU Fan Connector Location..................................................................................20
Figure 3-5: CPU Power Input Connector Location....................................................................21
Figure 3-6: Digital I/O Connector Locations ..............................................................................22
Figure 3-7: Audio Connector Pinouts.........................................................................................23
Figure 3-8: Front Panel Connector Location .............................................................................24
Figure 3-9: Infrared Connector Location....................................................................................25
Figure 3-10: Memory Card Slot Location ...................................................................................26
Figure 3-11: Northbridge Fan Connector Location...................................................................27
Figure 3-12: Parallel ATA (IDE) Connector Location ................................................................28
Figure 3-13: PCI Card Slot Location...........................................................................................30
Figure 3-14: PCIe Power ..............................................................................................................31
Figure 3-15: PCIe x1 Slot Location .............................................................................................32
Figure 3-16: PCIe x16 Slot Location ...........................................................................................33
Figure 3-17: SATA Drive Connector Location ...........................................................................35
Figure 3-18: Serial Port Connector Location.............................................................................36
Figure 3-19: Serial Port Connector Location.............................................................................37
Figure 3-20: SPDIF Connector Location ....................................................................................38
Figure 3-21: System Fan Connector Location...........................................................................39
Figure 3-22: USB Connector Pinout Locations.........................................................................40
Figure 3-23: External Peripheral Interface Connector..............................................................41
Figure 3-24: Audio Connector.....................................................................................................42
Figure 3-25: PS/2 Pinouts ............................................................................................................43
Figure 3-26: Parallel Port Connector Pinouts............................................................................44

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Figure 3-27: Serial Port Pinouts..................................................................................................45
Figure 3-28: VGA Connector .......................................................................................................46
Figure 4-1: Intel LGA775 Socket .................................................................................................50
Figure 4-2: Remove Protective Cover.........................................................................................51
Figure 4-3: CPU Socket Load Plate.............................................................................................51
Figure 4-4: Insert the Socket LGA775 CPU................................................................................52
Figure 4-5: Cooling Kits (CF-520 and CF-775A) ........................................................................53
Figure 4-6: Securing the Heat sink to the IMB-G41A................................................................54
Figure 4-7: DIMM Installation.......................................................................................................55
Figure 4-8: AT/ATX Power Mode Jumper Location...................................................................57
Figure 4-9: Clear BIOS Jumper Location ...................................................................................58
Figure 4-10: COM 1 Pin 9 Setting Jumper Location..................................................................59
Figure 4-11: COM 1 Pin 9 Setting Jumper Location..................................................................60
Figure 4-12: SATA Drive Cable Connection...............................................................................61
Figure 4-13: SATA Power Drive Connection..............................................................................62
Figure 4-14: Dual USB Cable Connection..................................................................................63
Figure 4-15: Audio Connector.....................................................................................................64
Figure 4-16: LAN Connection......................................................................................................65
Figure 4-17: Parallel Device Connector......................................................................................66
Figure 4-18: PS/2 Keyboard/Mouse Connector.........................................................................67
Figure 4-19: Serial Device Connector.........................................................................................68
Figure 4-20: USB Connector........................................................................................................69
Figure 4-21: VGA Connector .......................................................................................................70
Figure 4-22: Introduction Screen................................................................................................71
Figure 4-23: Available Drivers.....................................................................................................71

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List of Tables
Table 1-1: IMB-G41A Specifications.............................................................................................8
Table 2-1: Packing List.................................................................................................................12
Table 2-2: Optional Items.............................................................................................................13
Table 3-1: Peripheral Interface Connectors...............................................................................16
Table 3-2: Rear Panel Connectors..............................................................................................17
Table 3-3: ATX Power Connector Pinouts .................................................................................18
Table 3-4: Audio CD In Connector Pinouts................................................................................19
Table 3-5: CPU Fan Connector Pinouts......................................................................................20
Table 3-6: CPU Power Input Connector Pinouts.......................................................................21
Table 3-7: Digital I/O Connector Pinouts....................................................................................22
Table 3-8: Front Panel Audio Connector Pinouts .....................................................................24
Table 3-9: Front Panel Connector Pinouts.................................................................................25
Table 3-10: Infrared Connector Pinouts.....................................................................................26
Table 3-11: Northbridge Fan Connector Pinouts ......................................................................27
Table 3-12: Parallel ATA (IDE) Connector Pinouts....................................................................29
Table 3-13: PCIe Power................................................................................................................31
Table 3-14: PCIe x1 Slot Pinouts.................................................................................................33
Table 3-15: PCIe x16 Side A Pinouts ..........................................................................................34
Table 3-16: PCIe x16 Side B Pinouts ..........................................................................................35
Table 3-17: Serial Port Connector Pinouts ................................................................................36
Table 3-18: Serial Port Connector Pinouts ................................................................................38
Table 3-19: SPDIF Connector Pinouts........................................................................................39
Table 3-20: System Fan Connector Pinouts ..............................................................................40
Table 3-21: USB Port Connector Pinouts...................................................................................41
Table 3-22: PS/2 Connector Pinouts...........................................................................................42
Table 3-23: LAN Pinouts ..............................................................................................................43
Table 3-24: Parallel Port Connector Pinouts .............................................................................44
Table 3-25: Serial Port Pinouts....................................................................................................45
Table 3-26: USB Port Pinouts......................................................................................................45
Table 3-27: VGA Connector Pinouts...........................................................................................46

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Table 4-1: Jumpers.......................................................................................................................56
Table 4-2: AT/ATX Power Mode Jumper Settings.....................................................................57
Table 4-3: Clear BIOS Jumper Settings......................................................................................58
Table 4-4: COM 1 Pin 9 Setting Jumper Settings......................................................................59
Table 4-5: COM 1 Pin 9 Setting Jumper Settings......................................................................60
Table 5-1: BIOS Navigation Keys................................................................................................74

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BIOS Menus
BIOS Menu 1: Main.......................................................................................................................75
BIOS Menu 2: Advanced..............................................................................................................77
BIOS Menu 3: CPU Configuration...............................................................................................77
BIOS Menu 4: IDE Configuration.................................................................................................79
BIOS Menu 5: IDE Master and IDE Slave Configuration...........................................................81
BIOS Menu 6: Super IO Configuration........................................................................................86
BIOS Menu 7: Hardware Health Configuration..........................................................................95
BIOS Menu 8: ACPI Configuration..............................................................................................98
BIOS Menu 9: ACPI Settings .......................................................................................................98
BIOS Menu 10: APM Configuration.............................................................................................99
BIOS Menu 11: Remote Access Configuration....................................................................... 102
BIOS Menu 12: USB Configuration.......................................................................................... 104
BIOS Menu 13: PCI/PnP Configuration.................................................................................... 106
BIOS Menu 14: Boot.................................................................................................................. 108
BIOS Menu 15: Boot Settings Configuration.......................................................................... 109
BIOS Menu 16: Boot Device Priority Settings ........................................................................ 111
BIOS Menu 17: Hard Disk Drives ............................................................................................. 112
BIOS Menu 18: Removable Drives........................................................................................... 113
BIOS Menu 19: CD/DVD Drives ................................................................................................ 114
BIOS Menu 20: Security............................................................................................................ 114
BIOS Menu 21: Chipset............................................................................................................. 116
BIOS Menu 22:Northbridge Chipset Configuration................................................................ 116
BIOS Menu 23: Southbridge Chipset Configuration.............................................................. 118
BIOS Menu 24: Exit.................................................................................................................... 119

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Chapter
1
1 Introduction

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1.1 Introduction
Figure 1-1: IMB-G41A
The IMB-G41A is a MicroATX motherboard. It accepts a Socket LGA775 Intel® Core™ 2
Duo/Quad/Extreme processor and supports two 800/1066/1333 MHz Dual-channel DDR3
DIMM modules up to 4.0 GB each. The IMB-G41A includes a VGA port. Expansion and
I/O include two PCI card slots, a PCIe x16 card slot, a PCIe x1 card slot, High Definition
audio, four USB ports on the rear panel, four USB ports via pin headers, four SATA
connectors, a LPT port, and a keyboard/mouse connector.
1.2 Benefits
Some of the IMB-G41A motherboard benefits include:
Powerful graphics with multiple monitors
Staying connected with both wired LAN connections
Speedy running of multiple programs and applications

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1.3 Features
Some of the IMB-G41A motherboard features are listed below:
Micro-ATX
RoHS compliant
LGA 775 CPU socket
800/1066/1333 MHz Front Side Bus
Two PCI card expansion slots
One PCIe x16 card expansion slot
One PCIe x1 card expansion slot
Supports two dual-channel DDR3 DIMMs
One external RS-232 serial port
Eight internal RS-232 serial ports connectors
One internal RS-232/422/485 serial port connector
Two Gigabit Ethernet connectors
Four SATA connectors
High Definition audio
Intel® GMA X4500 for DX10 and OpenGL 2.0 support

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1.4 Connectors
The connectors on the IMB-G41A are shown in the figure below.
Figure 1-2: Connectors

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1.5 Dimensions
The main dimensions of the IMB-G41A are shown in the diagram below.
Figure 1-3: IMB-G41A Dimensions (mm)

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1.6 Data Flow
5Figure 1-4 shows the data flow between the system chipset, the CPU and other
components installed on the motherboard.
Figure 1-4: Data Flow Diagram

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1.7 Technical Specifications
IMB-G41A technical specifications are listed below.
Specification/Model IMB-G41A
Form Factor MicroATX
CPU Supported LGA775 Socket Intel® Core™ 2 Duo/Quad/Extreme
Front Side Bus (FSB) 800 MHz, 1066 MHz or 1333 MHz
Northbridge Chipset Intel® G41
Integrated Graphics Intel® GMA X4500
Up to 2048 x 1536 32-bit color @ 75 Hz refresh
Supports DirectX 10/OpenGL 2.0
Memory Two 240-pin dual-channel 800/1066/1333 MHz DDR3 DIMMs up to
4.0 GB each
Southbridge Chipset Intel® ICH7
Audio Realtek ALC888 HD Audio codec
BIOS AMI BIOS
Digital I/O 8-bit, 4-bit input/4-bit output
Ethernet Controllers Two Realtek RTL8111CP
Super I/O Controller ITE IT8783F
Watchdog Timer Software programmable supports 1~255 sec. system reset
Expansion
PCI Two PCI slots
PCIe One PCIe x1 slot
One PCIe x16 slot
I/O Interface Connectors
Audio Connectors One external audio jack (line-in, line-out, mic-in)
One internal front panel audio connector
One internal S/PDIF connector
Display port One VGA

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Specification/Model IMB-G41A
Ethernet Two RJ-45 ports
Keyboard/Mouse Dual PS/2 port
LPT One IEEE 1284 parallel port (supports normal, EPP and ECP modes)
Serial Ports One RS-232 serial port
One RS-232/422/485 via internal box pin headers
Eight RS-232 via internal box pin headers
USB 2.0/1.1 ports Four USB ports
Four USB ports by internal pin headers
Parallel ATA (IDE) One Parallel ATA (IDE) connector
Serial ATA Four independent SerialATA (SATA) channels with 3.0 Gb/s data
transfer rates
Environmental and Power Specifications
Power Supply ATX supported
Power Consumption 5V @ 7.26A, 12V @ 0.26A, Vcore_12V @ 3.24A, 3.3V @ 0.16A
3.16GHz Intel® Core™2 Duo E8500 with 2GB x 2 DDR3 800MHz
Operating temperature 0ºC ~ 60ºC/32°F ~ 140°F (requires cooler and silicone heat sink
paste)
Humidity 5% ~ 95% (non-condensing)
Physical Specifications
Dimensions 244 mm x 244 mm
Weight GW/NW 1200 g / 700 g
Table 1-1: IMB-G41A Specifications