IMB-G41A Micro-ATX Motherboard
IEI Technology Corp.
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
User Manual
Rev. 1.01 – 22 June, 2010
Page i
Date Version Changes
22 June, 2010 1.01 Minor edit
1 February, 2010 1.00 Initial release
IMB-G41A Micro-ATX Motherboard
Revision
Page ii
IMB-G41A Micro-ATX Motherboard
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
Copyright
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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IMB-G41A Micro-ATX Motherboard
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
2.1 ANTI-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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IMB-G41A Micro-ATX Motherboard
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
4.1 ANTI-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
Page v
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
IMB-G41A Micro-ATX Motherboard
5.1.5 BIOS Menu Bar................................................................................................ 74
5.2 MAIN........................................................................................................................ 75
5.3 ADVANCED............................................................................................................... 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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IMB-G41A Micro-ATX Motherboard
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.3 ASSEMBLY LANGUAGE SAMPLES........................................................................... 130
C.3.1 Enable the DIO Input Function..................................................................... 130
C.3.2 Enable the DIO Output Function.................................................................. 130
D WA TCHDOG 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 CER TIFIED AS
ROHS COMPLIANT UNDER 2002/95/EC WITHOUT MERCURY ..................................... 137
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IMB-G41A Micro-ATX Motherboard
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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IMB-G41A Micro-ATX Motherboard
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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IMB-G41A Micro-ATX Motherboard
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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IMB-G41A Micro-ATX Motherboard
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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IMB-G41A Micro-ATX Motherboard
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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IMB-G41A Micro-ATX Motherboard
Chapter
1
1 Introduction
Page 1
1.1 Introduction
IMB-G41A Micro-ATX Motherboard
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
Page 2
IMB-G41A Micro-ATX Motherboard
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 DX1 0 and OpenGL 2.0 support
Page 3
1.4 Connectors
The connectors on the IMB-G41A are shown in the figure below.
IMB-G41A Micro-ATX Motherboard
Figure 1-2: Connectors
Page 4
IMB-G41A Micro-ATX Motherboard
1.5 Dimensions
The main dimensions of the IMB-G41A are shown in the diagram below.
Figure 1-3: IMB-G41A Dimensions (mm)
Page 5
1.6 Data Flow
5Figure 1-4 shows the data flow between the system chipset, the CPU and other
components installed on the motherboard.
IMB-G41A Micro-ATX Motherboard
Figure 1-4: Data Flow Diagram
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IMB-G41A Micro-ATX Motherboard
1.7 Technical Specifications
IMB-G41A technical specifications are listed below.
Specification/Model IMB-G41A
Form Factor
CPU Supported
Front Side Bus (FSB)
Northbridge Chipset
Integrated Graphics
Memory
Southbridge Chipset
Audio
BIOS
Digital I/O
Ethernet Controllers
MicroATX
LGA775 Socket Intel® Core™ 2 Duo/Quad/Extreme
800 MHz, 1066 MHz or 1333 MHz
Intel® G41
Intel® GMA X4500
Up to 2048 x 1536 32-bit color @ 75 Hz refresh
Supports DirectX 10/OpenGL 2.0
Two 240-pin dual-ch annel 800/1066/1333 MHz DDR3 DIMMs up to
4.0 GB each
Intel® ICH7
Realtek ALC888 HD Audio codec
AMI BIOS
8-bit, 4-bit input/4-bit output
Two Realtek RTL8111CP
Super I/O Controller
Watchdog Timer
Expansion
PCI
PCIe
I/O Interface Connectors
Audio Connectors
Display port
ITE IT8783F
Software programmable supports 1~2 55 sec. system reset
Two PCI slots
One PCIe x1 slot
One PCIe x16 slot
One external audio jack (line-in, line-out, mic-in)
One internal front panel audio connector
One internal S/PDIF connector
One VGA
Page 7
Specification/Model IMB-G41A
IMB-G41A Micro-ATX Motherboard
Ethernet
Keyboard/Mouse
LPT
Serial Ports
USB 2.0/1.1 ports
Parallel ATA (IDE)
Serial ATA
Environmental and Power Specifications
Power Supply
Power Consumption
Two RJ-45 ports
Dual PS/2 port
One IEEE 1284 parallel port (supports normal, EPP and ECP modes)
One RS-232 serial port
One RS-232/422/485 via internal box pin headers
Eight RS-232 via internal box pin headers
Four USB ports
Four USB ports by internal pin headers
One Parallel ATA (IDE) connector
Four independent Serial ATA (SATA) channels with 3.0 Gb/s data
transfer rates
ATX supported
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
Humidity
Physical Specifications
Dimensions
Weight GW/NW
Table 1-1: IMB-G41A Specifications
0ºC ~ 60ºC/32°F ~ 140°F (requires cooler and silicone heat sink
paste)
5% ~ 95% (non-condensing)
244 mm x 244 mm
1200 g / 700 g
Page 8
IMB-G41A Micro-ATX Motherboard
Chapter
2
2 Packing List
Page 9
2.1 Anti-static Precautions
WARNING!
Static electricity can destroy certain electronics. Make sure to follow the
ESD precautions to prevent damage to the product, and injury to the
user.
Make sure to adhere to the following guidelines:
Wear an anti-static wristband: Wearing an anti-static wristband can prevent
electrostatic discharge.
Self-grounding: Touch a grounded conductor every few minutes to discharge
any excess static buildup.
IMB-G41A Micro-ATX Motherboard
Use an anti-static pad: When configuring any circuit board, place it on an
anti-static mat.
Only handle the edges of the PCB: Don't touch the surface of the
motherboard. Hold the motherboard by the edges when handling.
2.2 Unpacking Precautions
When the IMB-G41A is unpacked, please do the following:
Follow the antistatic guidelines above.
Make sure the packing box is facing upwards whe n opening.
Make sure all the packing list items are present.
Page 10
IMB-G41A Micro-ATX Motherboard
2.3 Packing List
NOTE:
If any of the components listed in the checklist below are missing, do
not proceed with the installation. Contact the IEI reseller or vendor the
IMB-G41A was purchased from or contact an IEI sales representative
directly by sending an email to 32sales@iei.com.tw.
The IMB-G41A is shipped with the following components:
Quantity Item and Part Number Image
1 IMB-G41A
2 Quad ports RS-232 cable without bracket
(P/N: 32205-001202-100-RS)
4 SATA cable
(P/N: 32000-062800-RS)
1 I/O shielding
(P/N: 45014-0017C0-00-RS)
1 Mini jumper pack (2.54mm)
(P/N:33100-000079-RS)
1 Utility CD
Page 11
Quantity Item and Part Number Image
1 Quick Installation Guide
Table 2-1: Packing List
2.4 Optional Items
The following are optional components which may be separately purchased:
Item and Part Number Image
CPU cooler kit
(P/N: CF-520-RS)
IMB-G41A Micro-ATX Motherboard
CPU cooler kit
(P/N: CF-775A-RS)
PCIe 16X SDVO interface DVI graphic card
(P/N: SDVO-100DVI-R10)
PCIe 16X SDVO interface VGA graphic card
(P/N: SDVO-100VGA-R10)
RS-232/422/485 Cable
(P/N: 32200-000063-RS)
Page 12
IMB-G41A Micro-ATX Motherboard
Item and Part Number Image
Dual USB cable (with bracket)
(P/N: CB-USB02A-RS)
SATA power cable
(P/N: 32100-088600-RS)
Table 2-2: Optional Items
Page 13
IMB-G41A Micro-ATX Motherboard
Chapter
3
3 Connectors
Page 14
IMB-G41A Micro-ATX Motherboard
3.1 Peripheral Interface Connectors
This chapter details all the jumpers and connectors.
3.1.1 IMB-G41A Layout
The figures below show all the connectors and jumpers.
Figure 3-1: Connectors and Jumpers
Page 15
3.1.2 Peripheral Interface Connectors
The table below lists all the connectors on the board.
Connector Type Label
ATX Power 24-pin A TX (2x12) PWR1
CD-In 4-pin header CD_IN1
CPU fan 4-pin wafer CPU_FAN1
CPU power 4-pin box header CPU12V1
Digital I/O 10-pin header DIO1
Front panel 10-pin hea der F_PANEL1
Front panel audio 9-pin header FP_AUDIO1
Infrared interface 5-pin header IR1
IMB-G41A Micro-ATX Motherboard
Memory card DIMM slot DIMM1, DIMM2
Northbridge fan 3-pin wafer NB_FAN1
Parallel A T A (IDE) 40-pin box he ader PIDE1
PCI card slot PCI card slot PCI1, PCI2
PCI-E power 4-pin molex PCIE_12V1
PCIe x1 slot PCIe x1 card slot PCIEX1_1
PCIe x16 slot PCIe x16 card slot PCIEX16_1
S/PDIF 5-pin header SPDIF1
SATA 7-pin SATA connector SATA1~4
Serial port, RS-232 40-pin box headers COM3-6, COM7-10
Serial port, RS-232/422/485 14-pin box headers COM2
System fan 3-pin wafer SYS_FAN1,
USB 8-pin headers (2x4) USB45, USB67
Table 3-1: Peripheral Interface Connectors
Page 16
IMB-G41A Micro-ATX Motherboard
3.1.3 External Interface Panel Connectors
The table below lists the connectors on the external I/O panel.
Connector Type Label
Audio Audio jack AUDIO_CV1
COM1, LPT, and VGA ports 9-pin male DB-9,
25-pin male DB-25,
15-pin female DE15
Keyboard/Mouse Dual PS/2 KBMS1
Ethernet and USB ports RJ-45, USB LAN1_USB_01
Table 3-2: Rear Panel Connectors
3.2 Internal Peripheral Connectors
The section describes all of the connectors on the IMB-G41A.
3.2.1 ATX Power Connector
CN Label: PWR1
CN Type:
24-pin A TX (2x12)
3IN1_DSUB1
LAN2_USB_23
Figure 3-2
CN Location:
CN Pinouts:
The ATX power connector connects to an ATX power supply.
See
See
Table 3-3
Page 17
IMB-G41A Micro-ATX Motherboard
Figure 3-2: ATX Power Connector Pinout Locations
Pin Description Pin Description
1 +3.3 V 13 +3.3 V
2 +3.3 V 14 -12 V
3 GND 15 GND
4 +5 V 16 PS-ON
5 GND 17 GND
6 +5 V 18 GND
7 GND 19 GND
8 PW-OK 20 NC
9 +VCC5SB 21 +5 V
10 +12 V 22 +5 V
11 +12 V 23 +5 V
12 +3.3 V 24 GND
Page 18
Table 3-3: ATX Power Connector Pinouts
IMB-G41A Micro-ATX Motherboard
3.2.2 CD-In Connector
CN Label: CD_IN1
CN Type:
CN Location:
CN Pinouts:
This connector accepts analog stereo audio input from a CD-ROM. Analog audi o output i s
mostly found on older CD-ROMs.
4-pin header
Figure 3-3
See
Table 3-4
See
Figure 3-3: Audio CD In Connector Pinouts (4-pin)
Pin Description
1 CD Signal (Left)
2 Ground
3 Ground
4 CD Signal (Right)
Table 3-4: Audio CD In Connector Pinouts
Page 19
3.2.3 CPU Fan Connector
CN Label: CPU_FAN1
IMB-G41A Micro-ATX Motherboard
CN Type:
CN Location:
CN Pinouts:
The fan connector attaches to a CPU cooling fan.
4-pin header
See Figure 3-4
See Table 3-5
Page 20
Figure 3-4: CPU Fan Connector Location
PIN NO. DESCRIPTION
1 GND
2 +12 V
3 FAN_Detect
4 FAN_CTRL
Table 3-5: CPU Fan Connector Pinouts
IMB-G41A Micro-ATX Motherboard
3.2.4 CPU Power Input Connector
CN Label: CPU12V2
CN Type:
CN Location:
CN Pinouts:
The CPU power input connector provides power to the CPU.
4-pin A T
See Figure 3-5
See Table 3-6
Figure 3-5: CPU Power Input Connector Location
PIN NO. DESCRIPTION
1 GND
2 GND
3 12 V
4 12 V
Table 3-6: CPU Power Input Connector Pinouts
Page 21
3.2.5 Digital I/O Connector
CN Label: DIO1
IMB-G41A Micro-ATX Motherboard
CN Type:
CN Location:
CN Pinouts:
10-pin header
See Figure 3-6
See Table 3-7
The digital I/O connector provides programmable input and output for external devices.
The digital I/O provides 4-bit output and 4-bit input.
Page 22
Figure 3-6: Digital I/O Connector Locations
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GND 2 5 V
3 Output 3 4 Output 2
5 Output 1 6 Output 0
7 Input 3 8 Input 2
9 Input 1 10 Input 0
Table 3-7: Digital I/O Connector Pinouts
IMB-G41A Micro-ATX Motherboard
3.2.6 Front Panel Audio Connector
CN Label: FP_AUDIO1
CN Type:
CN Location:
CN Pinouts:
This connector connects to speakers, a microphone and an audio input.
10-pin header
Figure 3-7
See
Table 3-8
See
Figure 3-7: Audio Connector Pinouts
Page 23
Pin Description Pin Description
1 MIC_L 2 GND
3 MIC_R 4 Audio Detect
5 Line2_R 6 GNC
7 Jack Detection 8 N/C
9 Line2_L 10 GND
Table 3-8: Front Panel Audio Connector Pinouts
3.2.7 Front Panel Connector
CN Label: F_PANEL1
IMB-G41A Micro-ATX Motherboard
CN Type:
CN Location:
CN Pinouts:
10-pin header
See Figure 3-8
See Table 3-9
The front panel connector connects to the indicator LEDs and buttons on the computer 's
front panel.
Page 24
Figure 3-8: Front Panel Connector Location
IMB-G41A Micro-ATX Motherboard
FUNCTION PIN DESCRIPTION FUNCTION PIN DESCRIPTION
Power LED 1 +5 V Speaker 2 +5 V
3 N/C 4 N/C
5 Ground 6 N/C
Power Button 7 PWRBTN- 8 Speaker
9 GND Reset 10 N/C
HDD LED 11 +5 V 12 Reset 13 HDD LED- 14 GND
Table 3-9: Front Panel Connector Pinouts
3.2.8 Infrared Interface Connector
CN Label: IR1
CN Type:
CN Location:
CN Pinouts:
5-pin header (1x5)
Figure 3-9
See
Table 3-10
See
The infrared connector attaches to an infrared receiver for use with remote controls.
Figure 3-9: Infrared Connector Location
Page 25
Pin Description
1 VCC
2 NC
3 IR-RX
4 GND
5 IR-TX
Table 3-10: Infrared Connector Pinouts
3.2.9 Memory Card Slot
CN Label: DIMM1, DIMM2
IMB-G41A Micro-ATX Motherboard
CN Type:
CN Location:
DIMM slot
See 5Figure 3-13
The DIMM slots are for DIMM memory modules.
Page 26
Figure 3-10: Memory Card Slot Location
IMB-G41A Micro-ATX Motherboard
3.2.10 Northbridge Fan Connector
CN Label: NB_FAN1
CN Type:
CN Location:
CN Pinouts:
The Northbridge fan connector attaches to a Northbridge cooling fan.
3-pin header
Figure 3-21
See
Table 3-20
See
Figure 3-11: Northbridge Fan Connector Location
Pin Description
1 Fan Speed Detect
2 +12 V
3 GND
Table 3-11: Northbridge Fan Connector Pinouts
Page 27
3.2.11 Parallel ATA (IDE) Connector
CN Label: PIDE1
IMB-G41A Micro-ATX Motherboard
CN Type:
CN Location:
CN Pinouts:
44-pin box header (2x22)
Figure 3-12
See
Table 3-12
See
The Parallel ATA (IDE) connector can connect to a Parallel ATA (IDE) hard drive or optical
device.
Page 28
Figure 3-12: Parallel ATA (IDE) Connector Location
Pin Description Pin Description
1 RESET# 2 GROUND
3 DATA 7 4 DATA 8
5 DATA 6 6 DATA 9
7 DATA 5 8 DATA 10
9 DATA 4 10 DATA 11
11 DATA 3 12 DATA 12
13 DATA 2 14 DATA 13
IMB-G41A Micro-ATX Motherboard
Pin Description Pin Description
15 DATA 1 16 DATA 14
17 DATA 0 18 DATA 15
19 GROUND 20 N/C
21 IDE DRQ 22 GROUND
23 IOW# 24 GROUND
25 IOR# 26 GROUND
27 IDE CHRDY 28 BALE - DEFAULT
29 IDE DACK 30 GROUND
31 INTERRUPT 32 N/C
33 SA1 34 PDIAG#
35 SA0 36 SA2
37 HDC CS0# 38 HDC CS1#
39 HDD ACTIVE# 40 GROUND
Table 3-12: Parallel ATA (IDE) Connector Pinouts
3.2.12 PCI Card Slot
CN Label: PCI1, PCI2
CN Type:
CN Location:
The PCI card slot is for installing PCI expansion cards.
PCI card slot
See 5Figure 3-13
Page 29
Figure 3-13: PCI Card Slot Location
3.2.13 PCI Express Power
IMB-G41A Micro-ATX Motherboard
CN Label: PCIE_12V1
CN Type:
CN Location:
CN Pinouts:
Provides extra power to the PCIe x16 card.
4-pin Molex
Figure 3-14
See
Table 3-13
See
Page 30
IMB-G41A Micro-ATX Motherboard
Figure 3-14: PCIe Power
Pin Description
1 VCC5V
2 GND
3 GND
4 VCC12V
Table 3-13: PCIe Power
3.2.14 PCI Express x1 Slot
CN Label: PCIEX1_1
CN Type:
CN Location:
PCIe x1 card slot
See
Figure 3-15
Table 3-14
CN Pinouts:
The PCIe x1 expansion card slot is for PCIe x1 expansion cards.
See
Page 31
IMB-G41A Micro-ATX Motherboard
Figure 3-15: PCIe x1 Slot Location
Pin Description Pin Description
A1 +12v B1 PRSNT#1
A2 +12v B2 +12v
A3 RSVD B3 +12v
A4 GND B4 GND
A5 SMCLK B5 JTAG2
A6 SMDAT B6 JTAG3
A7 GND B7 JTAG4
A8 +3.3v B8 JTAG5
A9 JTAG1 B9 +3.3v
A10 3.3 Vaux B10 +3.3v
A11 WAKE# B11 PWRGD
A12 RSVD B12 GND
A13 GND B13 REFCLK+
A14 HSOp(0) B14 REFCLKA15 HSOn(0) B15 GND
A16 GND B16 HSIp(0)
Page 32
A17 PRSNT#2 B17 HSIn(0)
IMB-G41A Micro-ATX Motherboard
Pin Description Pin Description
A18 GND B18 GND
Table 3-14: PCIe x1 Slot Pinouts
3.2.15 PCI Express x16 Slot
CN Label: PCIEX16_1
CN Type:
CN Location:
CN Pinouts:
PCIe x16 card slot
Figure 3-16
See
Table 3-15 (Side A) Table 3-16 (Side B)
See
The PCIe x16 expansion cards slot is for PCIe x16 expansion cards.
Figure 3-16: PCIe x16 Slot Location
Pin Description Pin Description Pin Description Pin Description
A1 Name A22 HSIn(1) A43 HSIp(6) A64 HSIp(11)
A2 PRSNT#1 A23 GND A44 HSIn(6) A65 HSIn(11)
A3 +12v A24 GND A45 GND A66 GND
A4 +12v A25 HSIp(2) A46 GND A67 GND
A5 GND A26 HSIn(2) A47 HSIp(7) A68 HSIp(12)
A6 JTAG2 A27 GND A48 HSIn(7) A69 HSIn(12)
A7 JTAG3 A28 GND A49 GND A70 GND
Page 33
Pin Description Pin Description Pin Description Pin Description
A8 JTAG4 A29 HSIp(3) A50 RSVD A71 GND
A9 JTAG5 A30 HSIn(3) A51 GND A72 HSIp(13)
A10 +3.3v A31 GND A52 HSIp(8) A73 HSIn(13)
A11 +3.3v A32 RSVD A53 HSIn(8) A74 GND
A12 PWRGD A33 RSVD A54 GND A75 GND
A13 GND A34 GND A55 GND A76 HSIp(14)
A14 REFCLK+ A35 HSIp(4) A56 HSIp(9) A77 HSIn(14)
A15 REFCLK- A36 HSIn(4) A57 HSIn(9) A78 GND
A16 GND A37 GND A58 GND A79 GND
A17 HSIp(0) A38 GND A59 GND A80 HSIp(15)
A18 HSIn(0) A39 HSIp(5) A60 HSIp(10) A81 HSIn(15)
A19 GND A40 HSIn(5) A61 HSIn(10) A82 GND
A20 RSVD A41 GND A62 GND
IMB-G41A Micro-ATX Motherboard
A21 GND A42 GND A63 GND
Table 3-15: PCIe x16 Side A Pinouts
Pin Description Pin Description Pin Description Pin Description
B1 +12v B22 GND B43 GND B64 GND
B2 +12v B23 HSOp(2) B44 GND B65 GND
B3 RSVD B24 HSOn(2) B45 HSOp(7) B66 HSOp(12)
B4 GND B25 GND B46 HSOn(7) B67 HSOn(12)
B5 SMCLK B26 GND B47 GND B68 GND
B6 SMDAT B27 HSOp(3) B48 PRSNT#2 B69 GND
B7 GND B28 HSOn(3) B49 GND B70 HSOp(13)
B8 +3.3v B29 GND B50 HSOp(8) B71 HSOn(13)
B9 JTAG1 B30 RSVD B51 HSOn(8) B72 GND
B10 3.3 Vaux B31 PRSNT#2 B52 GND B73 GND
B11 WAKE# B32 GND B53 GND B74 HSOp(14)
Page 34
B12 RSVD B33 HSOp(4) B54 HSOp(9) B75 HSOn(14)
B13 GND B34 HSOn(4) B55 HSOn(9) B76 GND
B14 HSOp(0) B35 GND B56 GND B77 GND
IMB-G41A Micro-ATX Motherboard
Pin Description Pin Description Pin Description Pin Description
B15 HSOn(0) B36 GND B57 GND B78 HSOp(15)
B16 GND B37 HSOp(5) B58 HSOp(10) B79 HSOn(15)
B17 PRSNT#2 B38 HSOn(5) B59 HSOn(10) B80 GND
B18 GND B39 GND B60 GND B81 PRSNT#2
B19 HSOp(1) B40 GND B61 GND B82 RSVD#2
B20 HSOn(1) B41 HSOp(6) B62 HSOp(11)
B21 GND B42 HSOn(6) B63 HSOn(11)
Table 3-16: PCIe x16 Side B Pinouts
3.2.16 SATA Drive Connectors
CN Label: SATA1~4
CN Type:
CN Location:
7-pin SATA drive connectors
See Figure 3-17
The SATA drive connectors can be connected to SATA drives.
Figure 3-17: SATA Drive Connector Location
Page 35
IMB-G41A Micro-ATX Motherboard
3.2.17 Serial Port Connector, RS-232/422/485
CN Label: COM2
CN Type:
CN Location:
CN Pinouts:
14-pin header (2x7)
See Figure 3-18
See Table 3-17
Used for RS-232/422/485 communications.
Page 36
Figure 3-18: Serial Port Connector Location
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 DCD 2 DSR
3 RXD 4 RTS
5 TXD 6 CTS
7 DTR 8 RI
9 GND 10 N/C
11 TXD485+ 12 TXD48513 RXD485+ 14 RXD485-
Table 3-17: Serial Port Connector Pinouts
IMB-G41A Micro-ATX Motherboard
3.2.18 Serial Port Connectors, RS-232
CN Label: COM3-6, COM7-10
CN Type:
CN Location:
CN Pinouts:
40-pin header (2x20)
See Figure 3-19
See Table 3-18
Each of these connectors provides RS-232 connections for four serial ports.
Figure 3-19: Serial Port Connector Location
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 DATA CARRIER DETECT (DCD1) 2 DATA SET READY (DSR1)
3 RECEIVE DATA (RXD1) 4 REQUEST TO SEND (RTS1)
5 TRANSMIT DATA (TXD1) 6 CLEAR TO SEND (CTS1)
7 DATA TERMINAL READY (DTR1) 8 RING INDICATOR (RI1)
9 GND 10 GND
11 DATA CARRIER DETECT (DCD2) 12 DATA SET READY (DSR2)
13 RECEIVE DATA (RXD2) 14 REQUEST TO SEND (RTS2)
15 TRANSMIT DATA (TXD2) 16 CLEAR TO SEND (CTS2)
17 DATA TERMINAL READY (DTR2) 18 RING INDICATOR (RI2)
19 GND 20 GND
Page 37
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
21 DATA CARRIER DETECT (DCD3) 22 DATA SET READY (DSR3)
23 RECEIVE DATA (RXD3) 24 REQUEST TO SEND (RTS3)
25 TRANSMIT DATA (TXD3) 26 CLEAR TO SEND (CTS3)
27 DATA TERMINAL READY (DTR3) 28 RING INDICATOR (RI3)
29 GND 30 GND
31 DATA CARRIER DETECT (DCD4) 32 DATA SET READY (DSR4)
33 RECEIVE DATA (RXD4) 34 REQUEST TO SEND (RTS4)
35 TRANSMIT DATA (TXD4) 36 CLEAR TO SEND (CTS4)
37 DATA TERMINAL READY (DTR4) 38 RING INDICATOR (RI4)
39 GND 40 GND
Table 3-18: Serial Port Connector Pinouts
3.2.19 S/PDIF Connector
IMB-G41A Micro-ATX Motherboard
CN Label: SPDIF1
CN Type:
CN Location:
CN Pinouts:
5-pin header
See Figure 3-20
See Table 3-19
Use the SPDIF connector to connect digital audio devices to the system.
Page 38
Figure 3-20: SPDIF Connector Location
IMB-G41A Micro-ATX Motherboard
PIN DESCRIPTION
1 VCC AUDIO
2 NC
3 SPDIF OUT
4 GND AUDIO
5 SPDIF IN
Table 3-19: SPDIF Connector Pinouts
3.2.20 System Fan Connector
CN Label: SYS_FAN1
CN Type:
CN Location:
CN Pinouts:
3-pin header
See Figure 3-21
See Table 3-20
The fan connector attaches to a cooling fan.
Figure 3-21: System Fan Connector Location
Page 39
PIN NO. DESCRIPTION
1 NC
2 +12 V
3 GND
Table 3-20: System Fan Connector Pinouts
3.2.21 USB Connectors
CN Label: USB45, USB67
IMB-G41A Micro-ATX Motherboard
CN Type:
CN Location:
CN Pinouts:
The USB connectors connect to USB devices. Each pin header provides two USB ports.
8-pin header (2x4)
See Figure 3-22
See Table 3-21
Page 40
Figure 3-22: USB Connector Pinout Locations
IMB-G41A Micro-ATX Motherboard
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 VCC 2 GND
3 DATAN- 4 DATAM+
5 DATAN+ 6 DATA1M7 GND 8 VCC
Table 3-21: USB Port Connector Pinouts
3.3 External Peripheral Interface Connector Panel
The figure below shows the external peripheral interface connector (EPIC) panel. The
EPIC panel consists of the following:
Figure 3-23: External Peripheral Interface Connector
3.3.1 Audio Connector
CN Label: AUDIO_CV1
CN Type:
CN Location:
The audio jacks connect to external audio devices.
Line In port (Light Blue): Connects a CD-ROM, DVD player, or other audio
devices.
Line Out port (Lime): Connects to a head phone or a speaker. With
multi-channel configurations, this port can also connect to front speakers.
Microphone (Pink): Connects a microphone.
Audio jack
See Figure 3-23
Page 41
Figure 3-24: Audio Connector
3.3.2 Keyboard/Mouse Connector
CN Label: KBMS1
IMB-G41A Micro-ATX Motherboard
CN Type:
CN Location:
CN Pinouts:
Dual PS/2
See Figure 3-23
See Figure 3-25 and Table 3-22
The PS/2 ports are for connecting a PS/2 mouse and a PS/2 keyboard.
PIN DESCRIPTION PIN DESCRIPTION
1 L_KDAT 7 L_MDAT
2 NC 8 NC
3 GND 9 GND
4 5 V 10 5 V
5 L_KCLK 11 L_MCLK
6 NC 12 NC
Table 3-22: PS/2 Connector Pinouts
Page 42
IMB-G41A Micro-ATX Motherboard
Figure 3-25: PS/2 Pinouts
3.3.3 LAN Connector
CN Label: LAN1, LAN2
CN Type:
CN Location:
CN Pinouts:
The LAN connector connects to a local network.
PIN DESCRIPTION PIN DESCRIPTION
1 TXA+ 5 TXC2 TXA- 6 TXB3 TXB+ 7 TXD+
4 TXC+ 8 TXD-
Table 3-23: LAN Pinouts
RJ-45
See Figure 3-23
See Table 3-23
3.3.4 Parallel Port Connector
CN Label: 3IN1_DSUB1
CN Type:
CN Location:
CN Pinouts:
The parallel port connects to parallel port device, typically a printer.
26-pin box header
See Figure 3-23
See Table 3-24
Page 43
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 STROBE# 14 AUTO FORM FEED #
2 DATA 0 15 ERROR#
3 DATA 1 16 INITIALIZE
4 DATA 2 17 PRINTER SELECT IN#
5 DATA 3 18 GROUND
6 DATA 4 19 GROUND
7 DATA 5 20 GROUND
8 DATA 6 21 GROUND
9 DATA 7 22 GROUND
10 ACKNOWLEDGE 23 GROUND
11 BUSY 24 GROUND
12 PAPER EMPTY 25 GROUND
13 PRINTER SELECT
IMB-G41A Micro-ATX Motherboard
Table 3-24: Parallel Port Connector Pinouts
Figure 3-26: Parallel Port Connector Pinouts
3.3.5 Serial Port Connectors (COM1)
CN Label: 3IN1_DSUB1
CN Type:
CN Location:
CN Pinouts:
DB-9 connector
See Figure 3-23
See Table 3-25 and Figure 3-27
Page 44
The serial port connects to a RS-232 serial communications device.
IMB-G41A Micro-ATX Motherboard
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 DCD 6 DSR
2 RX 7 RTS
3 TX 8 CTS
4 DTR 9 RI
5 GND
Table 3-25: Serial Port Pinouts
Figure 3-27: Serial Port Pinouts
3.3.6 USB Connector
CN Label: USB01, USB23
CN Type:
CN Location:
CN Pinouts:
The USB connector can be connected to a USB device.
PIN NO. DESCRIPTION
1 5 V
2 DATA3 DATA+
4 GND
USB port
See Figure 3-23
See Table 3-26
Table 3-26: USB Port Pinouts
Page 45
3.3.7 VGA Connector
CN Label: 3IN1_DSUB1
IMB-G41A Micro-ATX Motherboard
CN Type:
CN Location:
CN Pinouts:
15-pin Female
See Figure 3-23
See Figure 3-28 and Table 3-27
The VGA connector connects to a monitor that accepts a standard VGA input.
PIN DESCRIPTION PIN DESCRIPTION
1 RED 2 GREEN
3 BLUE 4 NC
5 GND 6 GND
7 GND 8 GND
9 VCC / NC 10 GND
11 NC 12 DDC DAT
13 HSYNC 14 VSYNC
15 DDCCLK
Table 3-27: VGA Connector Pinouts
Page 46
Figure 3-28: VGA Connector
IMB-G41A Micro-ATX Motherboard
Chapter
4
4 Installation
Page 47
4.1 Anti-static Precautions
WARNING:
Failure to take ESD precautions during the installation of the IMB-G41A
may result in permanent damage to the IMB-G41A and severe injury to
the user.
Electrostatic discharge (ESD) can cause serious damage to electronic components,
including the IMB-G41A. Dry climates are especially susceptible to ESD. It is therefore
critical that whenever the IMB-G41A or any other electrical component is handled, the
following anti-static precautions are strictly adhered to.
Wear an anti-static wristband: - Wearing a simple anti-static wristband can
IMB-G41A Micro-ATX Motherboard
help to prevent ESD from damaging the board.
Self-grounding:- Before handling the board touch any grounded conducting
material. During the time the board is handled, frequently touch any
conducting materials that are connected to the ground.
Use an anti-static pad: When configuring the IMB-G41A, place it on an
antic-static pad. This reduces the possibility of ESD damaging the IMB-G41A.
Only handle the edges of the PCB:-: When handling the PCB, hold the PCB
by the edges.
4.2 Installation Considerations
NOTE:
The following installation notices and installation considerations should
be read and understood before installation. All installation notices must
be strictly adhered to. Failing to adhere to these precautions may lead
Page 48
to severe damage and injury to the person performing the installation.
IMB-G41A Micro-ATX Motherboard
WARNING:
The installation instructions described in this manual should be
carefully followed in order to prevent damage to the components and
injury to the user.
Before and during the installation please DO the following:
Read the user manual:
o The user manual provides a complete description of the IMB-G41A
installation instructions and configuration options.
Wear an electrostatic discharge cuff (ESD):
o Electronic components are easily damaged by ESD. Wearing an ESD cuff
removes ESD from the body and helps prevent ESD damage.
Place the IMB-G41A o n an antistatic pad:
o When installing or configuring the motherboard, place it on an antistatic
pad. This helps to prevent potential ESD damage.
Turn all power to the IMB-G41A off:
o When working with the IMB-G41A, make sure that it is disconnected from
all power supplies and that no electricity is being fed into the system.
Before and during the installation of the IMB-G41A DO NOT:
Remove any of the stickers on the PCB board. These stickers are required for
warranty validation.
Use the product before verifying all the cables and power connectors are
properly connected.
Allow screws to come in contact with the PCB circuit, connector pins, or its
components.
Page 49
4.2.1 Socket LGA775 CPU Installation
NOTE:
To enable Hyper-Threading, the CPU and chipset must both support it.
WARNING:
CPUs are expensive and sensitive components. When installing the
CPU please be careful not to damage it in anyway. Make sure the CPU
is installed properly and ensure the correct cooling kit is properly
installed.
IMB-G41A Micro-ATX Motherboard
The LGA775 socket is shown in Figure 4-1.
Figure 4-1: Intel LGA775 Socket
To install the CPU, follow the steps below.
WARNING:
DO NOT touch the pins at the bottom of the CPU. When handling the
Page 50
CPU, only hold it on the sides.
IMB-G41A Micro-ATX Motherboard
Step 1: Remove the protective cover. The black protective cover can be removed by
pulling up on the tab labeled "Remove". See
Figure 4-2: Remove Protective Cover
Step 2: Open the socket. Disengage the load lever by pressing the lever down and
slightly outward to clear the retention tab. Fully open the lever, then open the
load plate. See
Figure 4-3.
Figure 4-2.
Figure 4-3: CPU Socket Load Plate
Step 3: Inspect the CPU socket. Make sure there are no bent pins and make sure the
socket contacts are free of foreign material. If any debris is found, remove it with
compressed air.
Page 51
Step 4: Orientate the CPU properly. The contact array should be facing the CPU
socket.
Step 5: Correctly position the CPU. Match the Pin 1 mark with the cut edge on the
CPU socket.
Step 6: Align the CPU pins. Locate pin 1 and the two orient ation notches on the CPU.
Carefully match the two orientation notches on the CPU with the socket
alignment keys.
Step 7: Insert the CPU. Gently insert the CPU into the socket. If the CPU pins are
properly aligned, the CPU should slide into the CPU socket smoothly. See
Figure 4-4.
IMB-G41A Micro-ATX Motherboard
Page 52
Figure 4-4: Insert the Socket LGA775 CPU
Step 8: Close the CPU socket. Close the load plate and engage the load lever by
pushing it back to its original position. There will be some resist ance, but will not
require extreme pressure.
Step 9: Connect the 12 V power to the board. Connect the 12 V power from the power
supply to the board. Step 0:
IMB-G41A Micro-ATX Motherboard
4.2.2 Socket LGA775 Cooling Kit Installation
WARNING:
DO NOT use the original Intel® heat sink and fan. A proprietary one is
recommended.
Figure 4-5: Cooling Kits (CF-520 and CF-775A)
The cooling kit can be bought from IEI. The cooling kit has a heatsink and fan.
WARNING:
Do not wipe off (accidentally or otherwise) the pre-sprayed layer of
thermal paste on the bottom of the heat sink. The thermal paste
between the CPU and the heat sink is important for optimum heat
dissipation.
To install the cooling kit, follow the instructions below.
Step 1: Place the cooling kit onto the socket LGA775 CPU. Make sure the CPU
cable can be properly routed when the cooling kit is installed.
Step 2: Properly align the cooling kit. Make sure the four spring screw fasten ers can
pass through the pre-drilled holes on the PCB.
Page 53
Step 3: Mount the cooling kit. Gently place the cooling kit on top of the CPU. Make
sure the four threaded screws on the corners of the cooling kit properly pass
through the predrilled holes on the bottom of the PCB.
Step 4: Secure the cooling kit. From the solder side of the PCB, align the support
bracket to the screw threads on heat sink that were inserted through the PCB
IMB-G41A Micro-ATX Motherboard
holes. (See
Figure 4-6: Securing the Heat sink to the IMB-G41A
Figure 4-6)
Page 54
Step 5: Tighten the scre ws. Use a screwdriver to tighten the four screws. Tighten each
nut a few turns at a time and do not over-tighten the screws.
Step 6: Connect the fan cable. Connect the cooling kit fan cable to the fan connector
on the IMB-G41A. Carefully route the cable and avoid heat generating chips and
fan blades. Step 0:
IMB-G41A Micro-ATX Motherboard
4.2.3 DIMM Installation
To install a DIMM, please follow the steps below and refer to Figure 4-7.
Figure 4-7: DIMM Installation
Step 1: Open the DIMM socket handles. Open the two handles outwards as far as
they can. See
Step 2: Align the DIMM with the socket. Align the DIMM so the notch on the memory
lines up with the notch on the memory socket. See
Step 3: Insert the DIMM. Once aligned, press down until the DIMM is properly seated.
Clip the two handles into place. See
Step 4: Removing a DIMM. To remove a DIMM, push both handles outward. The
memory module is ejected by a mechanism in the socket.Step 0:
Figure 4-7.
Figure 4-7.
Figure 4-7.
Page 55
4.3 Jumper Settings
NOTE:
A jumper is a metal bridge used to close
an electrical circuit. It consists of two or
three metal pins and a small metal clip
(often protected by a plastic cover) that
slides over the pins to connect them. To
CLOSE/SHORT a jumper means
connecting the pins of the jumper with
the plastic clip and to OPEN a jumper means removing the plastic clip
from a jumper.
IMB-G41A Micro-ATX Motherboard
The hardware jumpers must be set before installation. Jumpers are shown in Table 4-1.
Description Label Type
AT/ATX Auto power setting jumper JAUTO1 2-pin header
Clear CMOS jumper J_CMOS1 3-pin header
COM Port RI/Voltage select jumper J_COM_F7
J_COM_F8
J_COM_F9
J_COM_F10
COM Port RI pin voltage setting J_COM_V7
J_COM_V8
J_COM_V9
J_COM_V10
COM2 Port RS-232/422/485 mode setting JP1 6-pin header
3-pin header
3-pin header
Page 56
Table 4-1: Jumpers
IMB-G41A Micro-ATX Motherboard
4.3.1 AT/ATX Power Mode
Jumper Label: JAUTO1
Jumper Type:
Jumper Settings:
Jumper Location:
The AT Power Select jumper specifies the systems power mode as AT or ATX.
Setting Description
Closed ATX power
Open AT power
Table 4-2: AT/ATX Power Mode Jumper Settings
2-pin header
See Table 4-2
See Figure 4-8
Figure 4-8: AT/ATX Power Mode Jumper Location
4.3.2 Clear CMOS Jumper
Jumper Label: J_CMOS1
Jumper Type:
Jumper Settings:
Jumper Location:
3-pin header
See Table 4-3
See Figure 4-9
Page 57
To reset the BIOS, move the jumper to the "Clear BIOS" position for 3 seconds or more,
and then move back to the default position.
Setting Description
1-2 Normal
2-3 Clear BIOS
Table 4-3: Clear BIOS Jumper Settings
IMB-G41A Micro-ATX Motherboard
Figure 4-9: Clear BIOS Jumper Location
4.3.3 COM Pin 9 Setting Jumper (COM7~COM10)
Jumper Label: J_COM_F7, J_COM_F8, J_COM_F9, J_COM_F10
Jumper Type:
Jumper Settings:
Jumper Location:
The COM Pin 9 Setting jumper configures pin 9 on COM 7~10 as either +5V/+12V power
source or as a ring-in (RI) line. See the next section (Section
selecting voltage for the RI pin setting. The COM Pin 9 Setting jumper selection options
are shown in
Table 4-4.
3-pin header
Table 4-4
See
Figure 4-10
See
4.3.4) to set the voltage if
Page 58
IMB-G41A Micro-ATX Motherboard
Setting Description
1-2 COM RI Pin use voltage
2-3 COM RI Pin use RI
Table 4-4: COM 1 Pin 9 Setting Jumper Settings
Figure 4-10: COM 1 Pin 9 Setting Jumper Location
4.3.4 COM Pin 9 Setting Jumper (COM7~COM10)
Jumper Label: J_COM_V7, J_COM_V8, J_COM_V9, J_COM_V10
Jumper Type:
Jumper Settings:
Jumper Location:
3-pin header
Table 4-5
See
Figure 4-10
See
Page 59
The COM Pin 9 Setting jumper configures pin 9 on COM 7~10 as either a +5 V or +12 V
IMB-G41A Micro-ATX Motherboard
power source. The COM 1 Pin 9 Setting jumper selection options are shown in
Setting Description
1-2 COM RI Pin use +5 V
2-3 COM RI Pin use +12 V
Table 4-5: COM 1 Pin 9 Setting Jumper Settings
Table 4-5.
Figure 4-11: COM 1 Pin 9 Setting Jumper Location
4.4 Internal Peripheral Device Connections
This section outlines the installation of peripheral devices to the onboard connectors.
4.4.1 SATA Drive Connection
The IMB-G41A is shipped with two SATA drive cables and one SATA drive power cable.
To connect the SATA drives to the connectors, please follow the steps below.
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IMB-G41A Micro-ATX Motherboard
Step 1: Locate the connectors. The locations of the SATA drive connectors are shown
in Chapter 3.
Step 2: Insert the cable connector. Press the clip on the connector at the end of the
SATA cable and insert the cable connector into the on-board SATA drive
connector. See
Figure 4-12: SATA Drive Cable Connection
Figure 4-12.
Step 3: Connect the cable to the SATA disk. Connect the conne ctor on the other end
of the cable to the connector at the back of the SATA drive. See
Step 4: Connect the SATA power cable. Connect the SATA power connector to the
back of the SATA drive. See
Figure 4-13. Step 4:
Figure 4-13.
Page 61
IMB-G41A Micro-ATX Motherboard
Figure 4-13: SATA Power Drive Connection
4.4.2 USB Cable (Dual Port) with Slot Bracket (Optional)
The IMB-G41A is shipped with a dual port USB 2.0 cable. To connect the USB cable
connector, please follow the steps below.
Step 5: Locate the connectors. The locations of the USB connectors are shown in
Chapter 3.
WARNING:
If the USB pins are not properly aligned, the USB device can burn out.
Step 6: Align the connectors. The cable has two connectors. Correctly align pin 1on
each cable connector with pin 1 on the IMB-G41A USB connector.
Page 62
Step 7: Insert the cable connectors. Once the cable connectors are properly aligned
with the USB connectors on the IMB-G41A, connect the cable connectors to the
on-board connectors. See
Figure 4-14.
IMB-G41A Micro-ATX Motherboard
Figure 4-14: Dual USB Cable Connection
Step 8: Attach th e bracket to the chassis. The USB 2.0 connectors are attached to a
bracket. To secure the bracket to the chassis please refer to the installation
instructions that came with the chassis.Step 0:
4.5 External Peripheral Interface Connection
This section describes connecting devices to the external connectors on the IMB-G41A.
4.5.1 Audio Connector
The audio jacks on the external audio connector enable the IMB-G41A to be connected to
a stereo sound setup. Each jack supports both input and output. When connecting a
device, the High Definition Audio utility will automatically detect input or output. The lime
green (top) audio jack does not support input from a microphone. To install the audio
devices, follow the steps below.
Page 63
Step 1: Identify the audio plugs. The plug s on your home theater system or speakers
may not match the colors on the rear panel.
Step 2: Plug the audio plugs into the audio jacks. Plug the audio plugs into the audio
jacks. If the plugs on your speakers are different, an adapter will need to be used
to plug them into the audio jacks.
IMB-G41A Micro-ATX Motherboard
Figure 4-15: Audio Connector
Step 3: Check audio clarity. Check that the sound is coming through the right spea kers
by adjusting the balance front to rear and left to right.
4.5.2 LAN Connection
There are two external RJ-45 LAN connectors. The RJ-45 connectors enable connection
to an external network. To connect a LAN cable with an RJ-45 connector, please follow
the instructions below.
Step 4: Locate the RJ-45 connectors. The locations of the USB connectors are shown
in Chapter 4.
Step 5: Align the connectors. Align the RJ-45 connector on the LAN ca ble with one of
the RJ-45 connectors on the IMB-G41A. See
Figure 4-16.
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IMB-G41A Micro-ATX Motherboard
Figure 4-16: LAN Connection
Step 6: Insert the LAN cable RJ-45 connector. Once aligned, gently insert the LAN
cable RJ-45 connector into the on-board RJ-45 connector. Step 0:
4.5.3 Parallel Device Connection
The IMB-G41A has a single female DB-25 connector on the external peripheral interface
panel for parallel devices. Follow the steps below to connect a parallel device to the
IMB-G41A.
Step 1: Locate the DB-25 connector. The location of the DB-25 connector is shown in
Chapter 3.
Step 2: Insert the DB-25 connector. Insert the DB-25 connector of a parallel device
into the DB-25 connector on the external peripheral interface. See
Figure 4-17.
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IMB-G41A Micro-ATX Motherboard
Figure 4-17: Parallel Device Connector
Step 3: Secure the connector. Secure the DB-25 connector to the external interface by
tightening the two retention screws on either side of the connector. Step 0:
4.5.4 PS/2 Keyboard and Mouse Connection
The IMB-G41A has a dual PS/2 connector on the external peripheral interfac e panel. The
dual PS/2 connector is used to connect to a keyboard and mouse to the system. Follow
the steps below to connect a keyboard and mouse to the IMB-G41A.
Step 1: Locate the dual PS/2 connector. The location of the dual PS/2 connector is
shown in Chapter 3.
Step 2: Insert the keyboard/mouse connector. Insert a PS/2 keyboard o r mou se
connector into the appropriate PS/2 connector on the external peripheral
interface connector . See
Figure 4-18. Step 2:
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IMB-G41A Micro-ATX Motherboard
Figure 4-18: PS/2 Keyboard/Mouse Connector
4.5.5 Serial Device Connection
The IMB-G41A has a single female DB-9 connector on the external peripheral interface
panel for a serial device. Follow the steps below to connect a serial device to the
IMB-G41A.
Step 3: Locate the DB-9 connector. The location of the DB-9 connector is shown in
Chapter 3.
Step 4: Insert the serial connector. Insert the DB-9 con nector of a serial device into
the DB-9 connector on the external peripheral interface. See
Figure 4-19.
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IMB-G41A Micro-ATX Motherboard
Figure 4-19: Serial Device Connector
Step 5: Secure the connector. Secure the serial device connector to the external
interface by tightening the two retention screws on either side of the connector.
4.5.6 USB Connection (Dual Connector)
The external USB Series "A" receptacle connectors provide easier and quicker access to
external USB devices. Follow the steps below to connect USB devices to the IMB-G41A.
Step 1: Locate the USB Series "A" receptacle connectors. The location of the USB
Series "A" receptacle connectors are shown in Chapter 3.
Step 2: Insert a USB Series "A" plug. Insert the USB Series "A" plug of a device into
the USB Series "A" receptacle on the external peripheral interface. See
Figure 4-20. Step 2:
Step 0:
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IMB-G41A Micro-ATX Motherboard
Figure 4-20: USB Connector
4.5.7 VGA Monitor Connection
The IMB-G41A has a single female DB-15 connector on the external peripheral interface
panel. The DB-15 connector is connected to a CRT or VGA monitor. To connect a monitor
to the IMB-G41A, please follow the instructions below.
Step 3: Locate the female DB-15 connector. The location of the female DB-15
connector is shown in Chapter 3.
Step 4: Align the VGA connector. Align the male DB-15 connector on the VGA screen
cable with the female DB-15 connector on the external peripheral interface.
Step 5: Insert the VGA co nnector. Once the connectors are properly aligned with the
insert the male connector from the VGA screen into the female connector on the
IMB-G41A. See
Figure 4-21.
Page 69
Figure 4-21: VGA Connector
IMB-G41A Micro-ATX Motherboard
Step 6: Secure the connector. Secure the DB-15 VGA connector from the VGA
monitor to the external interface by tightening the two retention screws on either
side of the connector. Step 0:
4.6 Software Installation
All the drivers for the IMB-G41A are on the CD that came with the system. To install the
drivers, please follow the steps below.
Step 1: Insert the CD into a CD drive connected to the system.
NOTE:
If the installation program doesn't start automatically:
Click "Start->My Computer->CD Drive->autorun.exe"
Step 2: The driver main menu appears (Figure 4-22).
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IMB-G41A Micro-ATX Motherboard
Figure 4-22: Introduction Screen
Step 3: Click IMB-G41A.
Step 4: A new screen with a list of available drivers appears (
Figure 4-23: Available Drivers
Figure 4-23).
Step 5: Install all of the necessary drivers in this menu. Step 0:
Page 71
IMB-G41A Micro-ATX Motherboard
Chapter
5
5 BIOS
Page 72
IMB-G41A Micro-ATX Motherboard
5.1 Introduction
The BIOS is programmed onto the BIOS chip. The BIOS setup program allows changes to
certain system settings. This chapter outlines the options that can be changed.
5.1.1 Starting Setup
The AMI BIOS is activated when the computer is turned on. The setup program can be
activated in one of two ways.
1. Press the D
2. Press the D
appears on the screen. 0.
If the message disappears before the D
again.
ELETE key as soon as the system is turned on or
ELETE key when the “Press Del to enter SETUP” message
ELETE key is pressed, restart the computer and try
5.1.2 Using Setup
Use the arrow keys to highlight items, press ENTER to select, use the PageUp and
PageDown keys to change entries, press F1 for help and press E
keys are shown in.
Key Function
Up arrow Move to previous item
Down arrow Move to next item
Left arrow Move to the item on the left hand side
SC to quit. Navigation
Right arrow Move to the item on the right hand side
Esc key Main Menu – Quit and not save changes into CMOS
Status Page Setup Menu and Option Page Setup Menu --
Exit current page and return to Main Menu
Page Up key Increase the numeric value or make changes
Page Dn key Decrease the numeric value or make changes
F1 key General help, only for Status Page Setup Menu and Option
Page Setup Menu
Page 73
Key Function
F2 /F3 key Change color from total 16 colors. F2 to select color
F10 key Save all the CMOS changes, only for Main Menu
Table 5-1: BIOS Navigation Keys
5.1.3 Getting Help
When F1 is pressed a small help window describing the appropriate keys to use and the
IMB-G41A Micro-ATX Motherboard
forward.
possible selections for the highlighted item appears. To exit the Help Window press E
the F1 key again.
5.1.4 Unable to Reboot after Configuration Changes
If the computer cannot boot after changes to the system configuration is made, CMOS
defaults. Use the jumper described in Chapter 5.
5.1.5 BIOS Menu Bar
The menu bar on top of the BIOS screen has the following main items:
Main – Changes the basic system configuration.
Advanced – Changes the advanced system settings.
PCIPnP – Changes the advanced PCI/PnP Settings
Boot – Changes the system boot configuration.
Security – Sets User and Supervisor Passwords.
Chipset – Changes the chipset settings.
SC or
Page 74
Power – Changes power management settings.
Exit – Selects exit options and loads default settings
The following sections completely describe the configuration options found in the menu
items at the top of the BIOS screen and listed above.
IMB-G41A Micro-ATX Motherboard
5.2 Main
The Main BIOS menu (BIOS Menu 1) appears when the BIOS Setup program is entered.
The Main menu gives an overview of the basic system information.
BIOS SETUP UTILITY
Main Advanced PCIPNP Boot Security Chipset Exit
System Overview
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
AMIBIOS
Version :08.00.15
Build Date :07/03/09
ID: :B155MT07
Processor
Type :Intel® Core™2 CPU E8400 @ 3.00GHz
Speed :3000MHz
Count :1
System Memory
Size :2014MB
System Time [14:20:27]
System Time [Tue 010/08/2009]
v02.61 ©Copyright 1985-2006, American Megatrends, Inc.
Use [ENTER], [TAB] or
[SHIFT-TAB] to select a
field.
Use [+] or [-] to
configure system time.
Select Screen
↑ ↓ Select Item
Enter Go to SubScreen
F1 General Help
F10 Save and Exit
ESC Exit
BIOS Menu 1: Main
System Overview
The System Overvie w lists a brief summary of different system components. Th e fields in
System Overview cannot be changed. The items shown in the system overview include:
AMI BIOS: Displays auto-detected BIOS information
o Version: Current BIOS version
o Build Date: Date the current BIOS version was made
o ID: Installed BIOS ID
Processor: Displays auto-detected CPU specifications
o Type: Names the currently installed processor
o Speed: Lists the processor speed
o Count: The number of CPUs on the motherboard
System Memory: Displays the auto-detected system memory.
o Size: Lists memory size
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The System Overview field also has two user configurable fields:
System Time [xx:xx:xx]
Use the System Time option to set the system time. Manually enter the hours, minutes
and seconds.
System Date [xx/xx/xx]
Use the System Date option to set the system date. Manually enter the day, month and
year.
5.3 Advanced
Use the Advanced menu (BIOS Menu 2) to configure the CPU and peripheral devices
through the following sub-menus:
IMB-G41A Micro-ATX Motherboard
WARNING!
Setting the wrong values in the sections below may cause the system
to malfunction. Make sure that the settings made are compatible with
the hardware.
CPU Configuration (see Section 5.3.1)
IDE Configuration (see Section
Super IO Configuration (see Section
Hardware Health Configuration (see Section
Power Configuration (see Section
Remote Access Configuration (see Section
USB Configuration (see Section
5.3.2)
5.3.3)
5.3.4)
5.3.5)
5.3.6)
5.3.7)
Page 76
IMB-G41A Micro-ATX Motherboard
BIOS SETUP UTILITY
Main Advanced PCIPNP Boot Security Chipset Exit
Advanced Settings
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
WARNING: Setting wrong values in below sections may cause
system to malfunction
> CPU Configuration
> IDE Configuration
> SuperIO Configuration
> Hardware Health Configuration
> Power Configuration
> Remote Access Configuration
> USB Configuration
v02.61 ©Copyright 1985-2006, American Megatrends, Inc.
BIOS Menu 2: Advanced
Configure CPU
Select Screen
↑ ↓ Select Item
Enter Go to SubScreen
F1 General Help
F10 Save and Exit
ESC Exit
5.3.1 CPU Configuration
Use the CPU Configuration menu (BIOS Menu 3) to view detailed CPU specifications
and configure the CPU.
BIOS SETUP UTILITY
Main Advanced PCIPNP Boot Security Chipset Exit
Configure Advanced CPU Settings
Module Version:3F.15
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
Manufacturer :Intel®
Brand String :Intel® Core™2 CPU E8400 @ 3.00GHz
Frequency :3.00GHz
FSB Speed :1333MHz
Cache L1 :64KB
Cache L2 :6144KB
Ratio Actual Value:9
Intel® SpeedStep™ tech [Enabled]
Intel® C-STATE tech [Disabled]
v02.61 ©Copyright 1985-2006, American Megatrends, Inc.
Select Screen
↑ ↓ Select Item
Enter Go to SubScreen
F1 General Help
F10 Save and Exit
ESC Exit
BIOS Menu 3: CPU Configuration
The CPU Configuration menu (
BIOS Menu 3) lists the following CPU details:
Page 77
Manufacturer: Lists the name of the CPU manufacturer
Brand String: Lists the brand name of the CPU being used
Frequency: Lists the CPU processing speed
FSB Speed: Lists the FSB speed
Cache L1: Lists the CPU L1 cache size
Cache L2: Lists the CPU L2 cache size
The following CPU Configuration menu items can be configured.
Intel ® SpeedStep ™ tech
Intel ® C-STATE tech
Intel (R) SpeedStep (tm) tech. [Enabled]
Use the Intel (R) SpeedStep (tm) tech. option to enable or disable GV3. GV3 technology
is a power-saving scheme where the OS optimizes overall power consumption by
IMB-G41A Micro-ATX Motherboard
dynamically changing CPU frequency based on demand.
Disabled
Enabled DEFAULT
Intel (R) C-STATE tech. [Enabled]
Use the Intel (R) C-STATE tech. option to enable the CPU to switch to one of the power
saving C-States to save power.
Enabled D
Disabled
EFAULT
CPU remains at full power consumption
The CPU will change power consumption to one
of the C-States to conserve power
Disables SpeedStep i.e. GV3
Enables SpeedStep i.e. GV3
5.3.2 IDE Configuration
Use the IDE Configuration menu (BIOS Menu 4) to change and/or set the configuration
Page 78
of the IDE devices installed in the system.
S
IMB-G41A Micro-ATX Motherboard
BIOS SETUP UTILITY
Main Advanced PCIPNP Boot Security Chipset Exit
IDE Configuration
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
ATA/IDE Configuration [Enhanced]
Configure SATA as [IDE]
Configure SATA Channels [Before PATA]
> Primary IDE Master : [Not Detected]
> Primary IDE Slave : [Not Detected]
> Secondary IDE Master : [Not Detected]
> Secondary IDE Slave : [Not Detected]
> Third IDE Master : [Not Detected]
> Fourth IDE Master : [Not Detected]
v02.61 ©Copyright 1985-2006, American Megatrends, Inc.
DISABLED: disable the
integrated IDE
controller.
PRIMARY: enables only
the Primary IDE
controller
ECONDARY: enables only
the Secondary IDE
controller.
BOTH: enables both IDE
controllers
Select Screen
↑ ↓ Select Item
Enter Go to SubScreen
F1 General Help
F10 Save and Exit
ESC Exit
BIOS Menu 4: IDE Configuration
ATA/IDE Configurations [Compatible]
Use the ATA/IDE Configurations option to configure the ATA/IDE controller.
Disabled
Compatible
Enhanced DEFAULT
Disables the on-board ATA/IDE controller.
Configures the on-board ATA/IDE controller to be in
compatible mode. In this mode, a SATA channel will
replace one of the IDE channels. This mode supports
up to 4 storage devices.
Configures the on-board ATA/IDE controller to be in
Enhanced mode. In this mode, IDE channels and SATA
channels are separated. This mode supports up to 6
storage devices. Some legacy OS do not support this
mode.
Configure SATA as [IDE]
Use the Configure SATA as option to configure SATA devices as normal IDE devices.
Page 79
IMB-G41A Micro-ATX Motherboard
IDE DEFAULT
Configure SATA Channels [Behind PATA]
Use the Configure SATA Channels option to determine how SATA channels and PATA
channels are ordered.
Before PATA
Behind PATA DEFAULT
IDE Master and IDE Slave
When entering setup, BIOS automatically detects the presence of IDE devices. BIOS
displays the status of the automatically detected IDE devices. The following IDE devices
are detected and are shown in the IDE Configuration menu:
Primary IDE Master
Primary IDE Slave
Configures SATA devices as normal IDE device.
Puts SATA channels before PATA channels.
Puts SATA channels behind PATA channels.
Secondary IDE Master
Secondary IDE Slave
Third IDE Master
Fourth IDE Master
The IDE Configuration menu (
IDE devices installed in the system. If an IDE device is detected and one of the above
listed four BIOS configuration options are selected, the IDE configuration options shown in
Section
5.3.2.1 appear.
BIOS Menu 4) allows changes to the configurations for the
5.3.2.1 IDE Master, IDE Slave
Use the IDE Master and IDE Slave configuration menu to view both primary and
secondary IDE device details and configure the IDE devices connected to the system.
Page 80
S
IMB-G41A Micro-ATX Motherboard
BIOS SETUP UTILITY
Main Advanced PCIPNP Boot Security Chipset Exit
Primary IDE Master
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
Device :Not Detected
Type [Auto]
LBA/Large Mode [Auto]
Block (Multi-Sector Transfer) [Auto]
PIO Mode [Auto]
DMA Mode [Auto]
S.M.A.R.T. [Auto]
32Bit Data Transfer [Enabled]
v02.61 ©Copyright 1985-2006, American Megatrends, Inc.
BIOS Menu 5: IDE Master and IDE Slave Configuration
elect the type of device
connected to the system
Select Screen
↑ ↓ Select Item
Enter Go to SubScreen
F1 General Help
F10 Save and Exit
ESC Exit
Auto-Detected Drive Parameters
The “grayed-out” items in the left frame are IDE disk drive parameters automatically
detected from the firmware of the selected IDE disk drive. The drive parameters are listed
as follows:
Device: Lists the device type (e.g. hard disk, CD-ROM etc.)
Type: Indicates the type of devices a user ca n manually select
Vendor: Lists the device manufacturer
Size: List the storage capacity of the device.
LBA Mode: Indicates whether the LBA (Logical Block Addressing) is a method
of addressing data on a disk drive is supported or not.
Block Mode: Block mode boosts IDE drive performance by increasing the
amount of data transferred. Only 512 bytes of data can be transferred per
interrupt if block mode is not used. Block mode allows transfers of up to 64 KB
per interrupt.
PIO Mode: Indicates the PIO mode of the installed device.
Async DMA: Indicates the highest Asynchronous DMA Mode that is
supported.
Ultra DMA: Indicates the highest Synchronous DMA Mode that is supported.
S.M.A.R.T.: Indicates whether or not the Self-Monitoring Analysis and
Reporting Technology protocol is supported.
Page 81
T ype [Auto]
Use the Type BIOS option select the type of device the AMIBIOS attempts to boot from
after the Power-On Self-Test (POST) is complete.
IMB-G41A Micro-ATX Motherboard
32Bit Data Transfer: Enables 32-bit data transfer.
Not Installed
Auto DEFAULT
CD/DVD
ARMD
BIOS is prevented from searching for an IDE disk
drive on the specified channel.
The BIOS automatically detects the IDE disk drive
type attached to the specified channel. This setting
should be used if an IDE hard disk drive is atta ch ed t o
the specified channel.
The CD/DVD option specifies that an IDE CD-ROM
drive is attached to the specified IDE channel. The
BIOS does not attempt to search for other types of
IDE disk drives on the specified channel.
This option specifies an ATAPI Removable Media
Device. These include, but are not limited to:
ZIP
LS-120
LBA/Large Mode [Auto]
Use the LBA/Large Mode option to disable or enable BIOS to auto detects LBA (Logical
Block Addressing). LBA is a method of addressing data on a disk drive. In LBA mode, the
maximum drive capacity is 137 GB.
Disabled
Auto DEFAULT
Page 82
BIOS is prevented from using the LBA mode control on
the specified channel.
BIOS auto detects the LBA mode control on the specified
channel.
IMB-G41A Micro-ATX Motherboard
Block (Multi Sector Transfer) [Auto]
Use the Block (Multi Sector Transfer) to disable or enable BIOS to auto detect if the
device supports multi-sector transfers.
Disabled
Auto DEFAULT
PIO Mode [Auto]
Use the PIO Mode option to select the IDE PIO (Programmable I/O) mode program timing
cycles between the IDE drive and the programmable IDE controller. As the PIO mode
increases, the cycle time decrease s.
Auto DEFAULT
0
BIOS is prevented from using Multi-Sector T ran sfer on the
specified channel. The data to and from the device occurs
one sector at a time.
BIOS auto detects Multi-Sector Transfer support on the
drive on the specified channel. If supported the data
transfer to and from the device occurs multiple sectors at
a time.
BIOS auto detects the PIO mode. Use this value if the IDE disk
drive support cannot be determined.
PIO mode 0 selected with a maximum transfer rate of 3.3 MB/s
1
2
3
4
DMA Mode [Auto]
Use the DMA Mode BIOS selection to adjust the DMA mode options.
PIO mode 1 selected with a maximum transfer rate of 5.2 MB/s
PIO mode 2 selected with a maximum transfer rate of 8.3 MB/s
PIO mode 3 selected with a maximum transfer rate of 11.1 MB/s
PIO mode 4 selected with a maximum transfer rate of 16.6 MB/s
(This setting generally works with all hard disk drives
manufactured after 1999. For other disk drives, such as IDE
CD-ROM drives, check the specifications of the drive.)
Page 83
IMB-G41A Micro-ATX Motherboard
Auto DEFAULT
SWDMA0
SWDMA1
SWDMA2
MWDMA0
MWDMA1
MWDMA2
BIOS auto detects the DMA mode. Use this value if the IDE
disk drive support cannot be determined.
Single Word DMA mode 0 selected with a maximum data
transfer rate of 2.1 MB/s
Single Word DMA mode 1 selected with a maximum data
transfer rate of 4.2 MB/s
Single Word DMA mode 2 selected with a maximum data
transfer rate of 8.3 MB/s
Multi Word DMA mode 0 selected with a maximum data
transfer rate of 4.2 MB/s
Multi Word DMA mode 1 selected with a maximum data
transfer rate of 13.3 MB/s
Multi Word DMA mode 2 selected with a maximum data
transfer rate of 16.6 MB/s
UDMA0
UDMA1
UDMA2
UDMA3
UDMA4
UDMA5
Ultra DMA mode 0 selected with a maximum data transfer
rate of 16.6 MB/s
Ultra DMA mode 1 selected with a maximum data transfer
rate of 25 MB/s
Ultra DMA mode 2 selected with a maximum data transfer
rate of 33.3 MB/s
Ultra DMA mode 3 selected with a maximum data transfer
rate of 44 MB/s (To use this mode, it is required that an
80-conductor ATA cable is used.)
Ultra DMA mode 4 selected with a maximum data transfer
rate of 66.6 MB/s (To use this mode, it is required that an
80-conductor ATA cable is used.)
Ultra DMA mode 5 selected with a maximum data transfer
rate of 99.9 MB/s (To use this mode, it is required that an
80-conductor ATA cable is used.)
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IMB-G41A Micro-ATX Motherboard
S.M.A.R.T [Auto]
Use the S.M.A.R.T option to auto-detect, disable or enable Self-Monitoring Analysis and
Reporting Technology (SMART) on the drive on the specified channel. S.M.A.R.T predicts
impending drive failures. The S.M.A.R.T BIOS option enables or disables this function.
Auto DEFAULT
Disabled
Enabled
32Bit Data Transfer [Enabled]
Use the 32Bit Data Transfer BIOS option to enables or disable 32-bit data transfers.
Disabled
Enabled DEFAULT
BIOS auto detects HDD SMART support.
Prevents BIOS from using the HDD SMART feature.
Allows BIOS to use the HDD SMART feature
Prevents the BIOS from using 32-bit data transfers.
Allows BIOS to use 32-bit data transfers on supported
hard disk drives.
5.3.3 Super IO Configuration
Use the Super IO Configuration menu (BIOS Menu 6) to set or change the
configurations for the FDD controllers, parallel ports and serial ports.
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BIOS SETUP UTILITY
Main Advanced PCIPNP Boot Security Chipset Exit
Configure ITE8783 Super I/O Chipset
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
Serial Port1 Address [3F8]
Serial Port1 IRQ [4]
Serial Port2 Address [2F8]
Serial Port2 IRQ [4]
Serial Port3 Address [3E8]
Serial Port3 IRQ [4]
Serial Port3 Mode [Normal]
Serial Port4 Address [2E8]
Serial Port4 IRQ [4]
Serial Port4 Mode [Normal]
Serial Port5 Address [2F0]
Serial Port5 IRQ [4]
Serial Port5 Mode [Normal]
Serial Port6 Address [2E0]
Serial Port6 IRQ [4]
Serial Port6 Mode [Normal]
Serial Port7 Address [2D0]
Serial Port7 IRQ [3]
Serial Port8 Address [2D8]
Serial Port8 IRQ [3]
Serial Port9 Address [2C0]
Serial Port9 IRQ [3]
Serial Port10 Address [2C8]
Serial Port10 IRQ [3]
Parallel Port Address [378]
Parallel Port Mode [Normal]
Parallel Port IRQ [IRQ7]
v02.61 ©Copyright 1985-2006, American Megatrends, Inc.
IMB-G41A Micro-ATX Motherboard
Allows BIOS to select
Serial Port Base
Addresses
Select Screen
↑ ↓ Select Item
Enter Go to SubScreen
F1 General Help
F10 Save and Exit
ESC Exit
BIOS Menu 6: Super IO Configuration
Serial Port1 Address [3F8]
Use the Serial Port1 Address option to select the Serial Port 1 base address.
Disabled
3F8 DEFAULT
3E8
2E8
Page 86
No base address is assigned to Serial Port 1
Serial Port 1 I/O port address is 3F8.
Serial Port 1 I/O port address is 3E8.
Serial Port 1 I/O port address is 2E8.
IMB-G41A Micro-ATX Motherboard
Serial Port1 IRQ [4]
Use the Serial Port1 IRQ option to select the interrupt address for serial port 1.
3
4 DEFAULT
10
11
Serial Port2 Address [2F8]
Use the Serial Port2 Address option to select the Serial Port 2 base address.
Disabled
2F8 DEFAULT
3E8
2E8
Serial Port2 IRQ [4]
Serial port 1 IRQ address is 3
Serial port 1 IRQ address is 4
Serial port 1 IRQ address is 10
Serial port 1 IRQ address is 11
No base address is assigned to Serial Port 2
Serial Port 2 I/O port address is 2F8.
Serial Port 2 I/O port address is 3E8.
Serial Port 2 I/O port address is 2E8.
Use the Serial Port2 IRQ option to select the interrupt address for serial port 2.
3
4 DEFAULT
10
11
Serial Port3 Address [3E8]
Use the Serial Port3 Address option to select the Serial Port 3 base address.
Disabled
3F8
2F8
Serial port 2 IRQ address is 3
Serial port 2 IRQ address is 4
Serial port 2 IRQ address is 10
Serial port 2 IRQ address is 11
No base address is assigned to Serial Port 3
Serial Port 3 I/O port address is 2F8.
Serial Port 3 I/O port address is 2F8.
Page 87
IMB-G41A Micro-ATX Motherboard
3E8 DEFAULT
2E8
2F0
2E0
Serial Port3 IRQ [4]
Use the Serial Port3 IRQ option to select the interrupt address for serial port 3.
3
4 DEFAULT
10
11
Serial Port3 Mode [Normal]
Serial Port 3 I/O port address is 3E8.
Serial Port 3 I/O port address is 2E8.
Serial Port 3 I/O port address is 2F0.
Serial Port 3 I/O port address is 2E0.
Serial port 3 IRQ address is 3
Serial port 3 IRQ address is 4
Serial port 3 IRQ address is 10
Serial port 3 IRQ address is 11
Use the Serial Port3 Mode option to select the transmitting and receiving mode for the
first serial port.
Normal DEFAULT
IrDA
ASK IR
Smart Card Reader
Serial Port4 Address [2E8]
Use the Serial Port4 Address option to select the Serial Port 4 base address.
Disabled
3F8
2F8
3E8
No base address is assigned to Serial Port 4
Serial Port 4 I/O port address is 2F8.
Serial Port 4 I/O port address is 2F8.
Serial Port 4 I/O port address is 3E8.
Serial Port 3 mode is normal
Serial Port 3 mode is IrDA
Serial Port 3 mode is ASK IR
Serial Port 3 mode is Smart Card Reader
Page 88
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