IEI Technology IMB-8550 User manual

IEI Technology Corp.
IMB-8550
Micro-ATX Intel®Pentium®M Embedded
Motherboard
User Manual
Rev. 1.0 January 2006

IMB-8550
Revision History
Title IMB-8550 Micro-ATX Pentium M Embedded
Motherboard User Manual
Revision Number Description Date of Issue
1.0 Initial release February 2006
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 manu-
facturer.
In no event will the manufacturer be liable for direct, indirect, special, incidental, or consequential
damages arising out of the use or inability to use the product or documentation, even if advised of
the possibility of such damages.
This document contains proprietary information protected by copyright.All rights are reserved. No
part of this manual may be reproduced by any mechanical, electronic, or other means in any form
without prior written permission of the manufacturer.
Trademarks
IBM PC is a registered trademark of International Business Machines Corporation. INTEL is a
registered trademark of INTEL Corporation. AMI is registered trademarks of American Megatrends
Inc. Other product names mentioned herein are used for identification purposes only and may be
trademarks and/or registered trademarks of their respective owners.
Page 2
Page 2IEI®Technology, Corp.

IMB-8550
Table of Contents
Revision History 2··························································································································
··········································································································
··························································································································
···································································································································
·························································································································
································································································································
······························································································································
·····················································································································
·················································································
·······································································································
·········································································································
···························································································································
···························································································································
················································································································
··················································································
·················································································································································
···········································································································································
·····················································································································
···························································································································
···················································································································
··········································································································
········································································································
······································································································
Motherboard User Manual 2
Copyright Notice 2
Trademarks 2
Table of Contents 3
List of Tables 7
List of Figures 8
CHAPTER 1 INTRODUCTION
Product Overview 1-2
The IMB-8550 Embedded Motherboard 1-2
IMB-8550 Board Overview 1-4
Technical Specifications 1-5
System Monitoring 1-8
Package Contents 1-9
Optional Accessory Items 1-9
CHAPTER 2 FUNCTIONAL DESCRIPTION
2.1 CPU, Memory, and Intel Chipsets 2-2
CPU 2-2
Memory 2-3
Intel 855GME Chipset 2-3
Block Diagram 2-4
Important Features 2-5
2.2 External Interfaces 2-7
List of All Interface Connectors 2-8
2.2.1 Internal Connectors 2-10
Page 3

IMB-8550
2.2.2 Rear Panel Connectors 2-35································································································
·················································································································
··············································································
············································································································
··························································································································
············································································································
··············································································································
···························································································································
······················································································································
·····················································································
······················································································································
········································
······················································································································
···············································································································
······················································································································
·················································································
······················································································
··································································································································
·····················································································································
······················································································································
···························································································
····················································································································
····························································································
·································································
····································································································
······················································································································
······································································································
······························································································································
······················································································
····················································································
2.3 Onboard LED 2-39
CHAPTER 3 INSTALLATION
3.1 Considerations Prior to Installation 3-2
Preparing Your Motherboard 3-2
Installation Notices 3-2
Unpacking Precautions 3-3
3.2 Jumper Settings 3-4
JP1 (Clear CMOS) 3-4
JP1 Pin Configuration 3-5
JP4 (Compact Flash Master/Slave Setting) 3-6
JP4 Pin Configuration 3-6
JP7 Serial Port Operating Mode Selection (RS-232/422/485 Converter) 3-7
JP7 Pin Configuration 3-7
JP8 LCD Voltage Selector 3-8
JP8 Pin Configuration 3-8
3.3 External Switches and Indicators 3-9
CN3 (PWR/HDD LED/SW/SPK/RST Pins) 3-9
CN3 Pinouts 3-10
3.3 Installation 3-11
CPU Installation 3-11
Cooling Kit (CF-518) Installation 3-14
DIMM Installation 3-17
Connections to the Peripherals 3-17
IDE Disk Drive and CDROM Connector (IDE1 & IDE2) 3-18
Floppy Drive Connector (FDD1) 3-18
Compact Flash Disk 3-18
Parallel Port Connector (LPT1) 3-19
Audio Interface 3-19
COM Port Connectors (COM1 to COM6) 3-19
LCD Panel Connection (VGA1 and CN13) 3-19
Page 4
Page 4IEI®Technology, Corp.

IMB-8550
PCI Bus Interface 3-20··························································································································
·······················································································
··········································································
·····························································································································
·························································································································
····························································································································
····························································································································
······················································································································
··································································································································
·························································································································
·················································································································
···················································································································
··················
··················································
············································································································
·········································································································
····························································································
·············································································································
···············································································································
····································································
······························································································
················································································································
·····································································································································
·······················································································································
····················································································································
················································································································
······································································································
··················································································································
···············································································································
··································································································
·····················································································································
········································································································
Ethernet Connection (LAN Port on CN2) 3-20
USB Connection (USB1 and USB Ports on CN2) 3-20
CHAPTER 4 AMI BIOS SETUP
Introduction 4-2
Starting Setup 4-2
Using Setup 4-2
Getting Help 4-3
BIOS Menu Bar 4-4
4.1 Main 4-5
4.2 Advanced 4-6
CPU Configuration 4-7
IDE Configuration 4-8
Configuration SATA Channels [Before PATA/Behind PATA] 4-9
Primary and Secondary, Third IDE 0/1 4-9
Floppy Configuration 4-11
Super IO Configuration 4-11
Hardware Health Configuration 4-13
H/W Health Function 4-13
ACPI Configuration 4-14
ACPI Aware O/S 4-14
Remote Access Configuration 4-19
USB Configuration 4-22
PCIPnP 4-24
Clear NVRAM 4-24
Plug & Play O/S 4-24
PCI Latency Timer 4-25
Allocate IRQ to PCI VGA 4-25
Palette Snooping 4-25
PCI IDE BusMaster 4-25
OffBoard PCI/ISA IDE Card 4-25
IRQ# 4-25
DMA Channel# 4-26
Reserved Memory Size 4-26
Page 5

IMB-8550
Boot 4-27 ········································································································································
··········································································································
·······················································································································
····························································································································
·························································································································
······························································································································
····································································································································
·····································································································································
···································································································
·····················································································
···························································································
············································································
································································································
········································································································································
··············································································································
············································································································
········································································································
····················································································
·······························································································································
·····································································································································
····················································································································
··········································································································
·····················································································
·····································································································
·························································································
························································································································
·······································································································
Bootup Num-Lock [On] 4-29
Boot Device Priority 4-29
Hard Disk Drives 4-29
Removable Drives 4-29
CD/DVD Drives 4-30
Security 4-31
Chipset 4-32
North Bridge Configuration 4-33
South Bridge Chipset Configuration 4-34
Spread Spectrum Configuration 4-35
Power Management -APM Configuration 4-36
Power Button Mode [On/Off] 4-37
Exit 4-39
CHAPTER 5 SOFTWARE DRIVERS
5.1 Folder Structure 5-2
5.2 Driver Installation 5-3
5.2.1 AUDIO IC 5-3
5.2.2 JG82855GME (Intel Chipset) 5-7
Intel AGP Driver 5-9
LAN Driver 5-12
SATA-ALiRAID Driver 5-14
APPENDIX A WATCHDOG TIMER
APPENDIX B ADDRESS MAPPING
B.1 IO Address Map B-2
B.2 1st MB Memory Address Map B-2
B.3 IRQ Mapping Table B-3
B.4 DMA Channel Assignments B-3
APPENDIX C ALI®RAID FOR SATA
1. Introduction C-2
2. Features and Benefits C-2
Page 6
Page 6IEI®Technology, Corp.

IMB-8550
3. Accessing the ALi RAID Utility C-3 ···························································································
List of Tables
Table 1-1 Technical Specifications........................................................................8
Table 2-1 Supported CPUs...................................................................................2
Table 2-2 Important Features................................................................................5
Table 2-3 Interface Connectors.............................................................................8
Table 2-4 COM Port (Internal) Pinouts................................................................10
Table 2-5 USB (Internal) Port Pinouts.................................................................12
Table 2-6 CN1 CFII Socket Pinouts....................................................................13
Table 2-7 FAN1 and FAN2 Pinouts.....................................................................14
Table 2-8 AUX1 Pinouts......................................................................................15
Table 2-9 CD_IN1 Pinouts...................................................................................16
Table 2-10 CN3 System Panel Connector Pinouts...............................................17
Table 2-11 DIO1 Digital I/O Header Pinouts .........................................................19
Table 2-12 DIO Port Pin Connection to W83627HF LPC I/O Chip.......................20
Table 2-13 IDE Connector Pinouts........................................................................21
Table 2-14 FDD Port Pinouts ................................................................................23
Table 2-15 IR1 IrDA Interface Port Pinouts...........................................................25
Table 2-16 CN12 Pinouts......................................................................................26
Table 2-17 LVDS Connector Pinouts.....................................................................27
Table 2-18 J1 Inverter Connector Pinouts.............................................................29
Table 2-19 CN8 Audio Output Pinouts..................................................................30
Table 2-20 CN9 Audio Output Pinouts..................................................................31
Table 2-21 CN7 SPDIF Input Pinouts ...................................................................31
Table 2-22 Serial ATA Port Pinouts .......................................................................33
Table 2-23 PS/2 Keyboard/Mouse Port Pinouts....................................................35
Table 2-24 USB Port Pinouts ................................................................................36
Table 2-25 Parallel Port Pinouts............................................................................36
Table 2-26 Ethernet Port Pinouts..........................................................................37
Table 2-27 LAN Port LED Indications ...................................................................38
Table 3-1 JP1 Pin Configuration ...........................................................................5
Table 3-2 JP4 Pin Configuration ...........................................................................6
Page 7

IMB-8550
Table 3-3 JP7 Pin Configuration ...........................................................................7
Table 3-4 JP8 Pin Configuration ...........................................................................8
Table 3-5 CN3 Pinouts........................................................................................10
Table 3-6 Cables Included in Kit .........................................................................17
Table 4-1 BIOS Function Keys..............................................................................3
Table A-1 AH-6FH Sub-function............................................................................2
Table B-1 IO Address Map ....................................................................................2
Table B-2 1st MB Memory Address Map................................................................2
Table B-3 IRQ Mapping Table................................................................................3
Table B-4 DMA Channel Assignments...................................................................3
List of Figures
Figure 1-1 IMB-8550 Board Overview....................................................................4
Figure 2-1 IMB-8550 System Block Diagram.........................................................4
Figure 2-2 External Interface Locations..................................................................7
Figure 2-3 COM Port Locations............................................................................10
Figure 2-4 USB (Internal) Port..............................................................................12
Figure 2-5 FAN1/FAN2 Connector........................................................................14
Figure 2-6 AUX1 Connector.................................................................................15
Figure 2-7 CD_IN1 Connector..............................................................................16
Figure 2-8 CN3 Front Panel Connector................................................................18
Figure 2-9 DIO1 Digital I/O Header......................................................................19
Figure 2-10 IDE Connectors...................................................................................22
Figure 2-11 FDD1 Port ...........................................................................................24
Figure 2-12 IR1 IrDA Interface Port........................................................................25
Figure 2-13 CN12 Serial Port Connector................................................................26
Figure 2-14 LVDS LCD Panel Connection Port......................................................28
Figure 2-15 J1 Inverter Control...............................................................................29
Figure 2-16 CN8 and CN9 Audio Output Locations ...............................................30
Figure 2-17 CN7 SPDIF Input ................................................................................32
Figure 2-18 Serial ATA Port ....................................................................................33
Figure 2-19 Rear Panel Connectors.......................................................................35
Figure 2-20 PS/2 Keyboard/Mouse Port.................................................................35
Page 8
Page 8IEI®Technology, Corp.

IMB-8550
Figure 2-21 USB Port .............................................................................................36
Figure 2-22 Parallel Port.........................................................................................37
Figure 2-23 GbE Ethernet LAN (RJ-45) Port..........................................................37
Figure 2-24 LED1 Location.....................................................................................39
Figure 3-2 JP1 Jumper Location ............................................................................4
Figure 3-3 JP4: Compact Flash Master/Slave Setting ...........................................6
Figure 3-4 JP7 Jumper Location ............................................................................7
Figure 3-5 JP8 LCD Voltage Selector.....................................................................8
Figure 3-6 CN3 Connector Location.......................................................................9
Figure 3-7 479-pin Socket ....................................................................................12
Figure 3-8 Securing CPU by Rotating the Retention Screw.................................13
Figure 3-9 IEI CF-518 Cooling Kit ........................................................................14
Figure 3-10 Securing Heatsink through the PCB through-holes............................15
Figure 3-11 Connecting FAN1 Connector ..............................................................16
Safety Notice
Electrical shock hazards might occur while proceeding with the installation, repair and
maintenance of this product. Therefore, the following precaution measures should be carefully
observed:
1. All sorts of operations on this product must be carried out by certified technicians.
2. The chassis into which the CPU board and its associated backplane are installed should
provide stable and sufficient power supply, and be properly grounded.
3. Power off the motherboard and unplug its power cord before handling.
4. Before connecting any signal cables, make sure that all power cords are disconnected.
5. Consult qualified technicians before adding an adapter or extension cord.
6. When handling the motherboard, avoid touching any metal leads or connectors.
7. Set your power supply to the correct voltage range.
8. Please verify that the power supply is switched off before unplugging the power supply
connector from the motherboard.
9. Contact your local dealer if any item you received in the package appears to have been
Page 9

IMB-8550
damaged.
ESD Precautions
Observe all conventional anti-ESD methods while handling the CPU board. The use of a
grounded wrist strap and an anti-static work pad is recommended. Avoid dust and debris or other
static-accumulating materials in your work area.
Page 10
Page 10 IEI®Technology, Corp.

IMB-8550
Conventions Used in This Manual
Naming
From this point on and throughout the rest of this manual, the IMB-8550 is referred to as
simply the “motherboard” or the “board.”
WARNING!
Warnings appear where overlooked details may cause damage to the equipment or result
in personal injury. Warnings should be taken seriously. Warnings are easy to recognize.
The word “warning” is written as “WARNING,” both capitalized and bold and is followed by
text in italics. The italicized text is the warning message.
CAUTION!
Cautionary messages should also be heeded to help you reduce the chance of losing data
or damaging the system. Cautions are easy to recognize. The word “caution” is written as
“CAUTION,” both capitalized and bold and is followed by text in italics. The italicized text is
the cautionary message.
NOTE:
These messages inform the reader of essential but non-critical information. These
messages should be read carefully as any directions or instructions contained therein can
help you avoid making mistakes. Notes are easy to recognize. The word “note” is written as
“NOTE,” both capitalized and bold and is followed by text in italics. The italicized text is the
cautionary message.
Lists
Bulleted Lists: Bulleted lists are statements of non-sequential facts that can be read in any
order. Each statement is preceded by a round black dot “•.”
Numbered Lists: Numbered lists describe sequential steps you should follow in order.
Page 11

IMB-8550
Software and Firmware Updates
Please contact your system vendor or visit IEI website (www.iei.com.tw) for the latest
software or firmware updates. NOTE that the BIOS version and associated drivers installed
on your system should provide the complete functionality listed in the specification
sheet/user’s manual. We provide special revisions for various application purposes.
Therefore, DO NOT upgrade your BIOS unless you fully understand what a firmware
revision will do.
Problems that occur during the updating process may cause unrecoverable errors and
system down time. Always consult technical personnel before proceeding with any BIOS
upgrade.
Page 12
Page 12 IEI®Technology, Corp.

IMB-8550
Chapter
1
Introduction
1-1
1-1

IMB-8550 User Manual
Product Overview
The IMB-8550 Embedded Motherboard
The IMB-8550 is a highly-integrated embedded system board designed to support Pentium®M or
Celeron®M processors, which was originally design for mobile PC architecture boosted by a
dedicated stack manager, micro-ops fusion technology and Enhanced Intel SpeedStep technology.
Combined with Intel®855GME chipset and the ICH4 controller hub, the IMB-8550 delivers high
performance through perfect integration of the latest technologies. The embedded board supports
Pentium M CPUs with the speed up to 2GHz.
The motherboard comes with the connectivity to a variety of external interfaces including six (6)
USB 2.0 ports, six (6) COM ports, two (2) SATA ports, one (1) CFII socket for compact size
bootable device, and dual displays through the VGA/LVDS interface.
As a continuance to IEI’s well-acclaimed line of industrial motherboards, the IMB distinguishes
itself from users’ products in the following aspects:
1. Tested and proved reliable through tests conducted in harsh
environments with temperatures ranging from 0 to 60°C.
2. High-quality components to withstand punishing working conditions.
3. RoHS compliance.
4. Long-term support to protect your investment.
5. Customization service.
6. Flexible interface configuration to peripheral devices for continuous
monitoring, wireless and simultaneous communications with storage
or terminal devices.
The IMB-8550 provides the following for the connections to a wide variety of peripheral devices:
 One (1) GbE Ethernet port
 Six (6) USB 2.0 ports
 Six (6) COM ports
 Two (2) SATA ports
 Two (2) IDE ports
 One (1) CFII socket
1-2
1-2
IEI®Technology, Corp.

IMB-8550
 One (1) 30-pin LVDS LCD panel connector
 Intel Graphics embedded in the 855GME chipset through one (1) 15-pin VGA
connector.
 Various interfaces for Infrared, LPT, floppy, PS/2 keyboard/mouse, Digital I/O, etc.
The IMB-8550 is built in accordance with Micro-ATX form factors. With interface connectors
carefully aligned to the edges of PCB, airflow travel clear of obstructions through board surface
and thus the chance of overheating is reduced. Carefully tuned using the IR Thermograph
technology, reliability of operation is guaranteed.
The IMB-8550 features a significant improvement of CPU processing power and interface
expandability. The motherboard also takes advantages from a sophisticated Windows CE OS
system which features stable operation, real-time responsiveness, and cost-saving appliances.
As the result, the integration of the board is ideal for GPS,Automation devices, transaction
terminals, MMI, etc.
OSes tested and proved compliant include: DOS 6.22, Windows 2000, Windows XP, Windows CE,
Red Hat 9.0, and SuSe 9.0. For a more updated list of supported OSes, please check on IEI
website or contact our technical support.
1-3
1-3

IMB-8550 User Manual
IMB-8550 Board Overview
Figure 1-1 IMB-8550 Board Overview
NOTE:
There are no configuration jumpers or connectors on the soldering side.
1-4
1-4
IEI®Technology, Corp.

IMB-8550
Technical Specifications
CPU (mPGA479M)
 Supports Intel®Pentium®M Prescott/Celeron M socket 479
CPUs.
 Supports FSB (Front Side Bus) up to 400MHz.
 L1/L2 cache varies with CPU processor.
Chipset
 Northbridge: Intel®855GME Chipset
 Southbridge: Intel®ICH4
Memory
 Supports 333/266/200 MHz unbuffered DDR with a maximum of
two double-sided DIMMs for a total of 2GB of system memory
 128Mbit, 256Mbit, and 512Mbit DDR device technology support
PCI Bus Interface
 Supports PCI Revision 2.2 Specification at 33 MHz
 133 MB/sec maximum throughput
 Supports up to six master devices on PCI (3 implemented)
 One PCI REQ/GNT pair can be given higher arbitration priority
(intended for external 1394 host controller)
 Support for 44-bit addressing on PCI using DAC protocol
IDE interface
 Up to 4 (four) PCI Enhanced IDE hard drives or CD-ROMs. The
Ultra DMA 100 IDE can handle data transfer up to 100MB/s.
Compatible with existing ATA IDE specifications with its best
advantages, so there is no need to do any changes with users’
current accessories.
 Supports Ultra ATA /100 / 66 / 33, BMIDE and PIO modes
Graphics
 Intel’s Extreme Graphics 2 Technology32-bit 3D core at 133MHz
 APG 4X support
 Dual independent pipe display support: an embedded VGAand a
LVDS interface
Concurrent: different images and native display timings on each
display device.
Simultaneous: same images and native display timings on each
display device.
 Dedicated Local Flat Panel (LFP) LVDS interface
 Internal Graphics Features
1-5
1-5

IMB-8550 User Manual
Core frequency:
Display core frequency of 133MHz
Render core frequency of 133MHz
Compliant with DVI Specification 1.0
Floppy disk drive
interface
 Supports up to two floppy disk drives, 5.25”(360KB and 1.2MB)
and/or 3.5” (720KB, 1.44MB, and 2.88MB)
Serial ports
 6 (six) RS-232 ports with 16C550 UART (or compatible) with
16-byte FIFO buffer. Support up to 115.2Kbps. Ports can be
individually configured to COM1 to COM6 respectively.
Peripherals
 1 (one) parallel port supporting Normal/EPP/ECP mode
- Provides one 26 Pin Printer port header.
- Supports EPP and ECP.
 1 (one) VGAport.
 1 (one) LVDS via 20-pin connector,
 6 (six) USB 2.0/1.1 ports (bracket x 4, pin header (2x5) x 2 via
adapter cable)
 6 (six) RS-232 COM ports (one D-SUB on the real panel)
 2 (two) PS/2 keyboard / Mouse port.
 2 (two) SATA -150 ports.
 1 (one) IrDA header supports IrDAs version 1.0 SIR protocol with
maximum baud rate up to 115.2K bps.
 1 (one) Digital IO header: provides one 10Pin header for four GPI
and four GPO.
 1 (one) CFII Compact Flash socket
 2 (two) IDE ports
 1 (one) Floppy drive connector
 1 (one) GbE Ethernet RJ-45 connector
 1 (one) SPDIF output
 2 (two) internal fan connectors
NOTE:
There is one I/O bracket included in kit.
1-6
1-6
IEI®Technology, Corp.

IMB-8550
Realtime Clock  256-byte battery-back CMOS RAM
Hardware Monitor
 System voltage detection
 CPU temperature detection
 CPU / System fan speed detection
Power Management
 Enhanced clock control, local and global monitoring support for 14
individual devices, and various low-power (suspend) states; e.g.,
Suspend-to-DRAM and Suspend-to-Disk.
 Hardware-based thermal management circuit.
 Software-independent entrance to low-power states.
 Compliant with Advanced Configuration and Power Interface
(ACPI) Specification, Rev. 2.0.
IrDA port  Supports Serial Infrared (SIR) and Amplitude Shift Keyed IR
(ASKIR) interface
USB 2.0/1.1 port  Supports six (6) USB 2.0/1.1 ports for future expansion
Serial ATA  Supports Four independent serial ATA channels. Serial ATA
generation 1 transfer rate of 3Gb/s.
Ethernet
 Realtek RTL8100S
 Triple-speed IEEE 802.3 compliant
 Media Access Controller (MAC) with a triple-speed Ethernet
transceiver
 32-bit PCI bus controller with embedded memory.
 State-of-the-art DSP technology and mixed-mode signal
technology
 High-speed transmission over CAT 5 UTP or CAT 3 UTP (10Mbps
only) cable.
 Crossover Detection & Auto-Correction, polarity correction,
adaptive equalization, cross-talk cancellation, echo cancellation,
timing recovery, and error correction.
I/O Controller  ICH4
BIOS  Use of licensed AMI BIOS
1-7
1-7

IMB-8550 User Manual
Operating
temperature
 -10 to 70°C
(*CPU needs Cooler & silicone heat sink paste)
Form Factor  Micro-ATX
AC ’97 interface
(by Realtek ALC655)
 AC-Link for Audio and Telephony Codecs
 Provides an auxiliary 10-pin Audio header
 AC ’97 implementation delivers 20-bit audio for enhanced sound
quality and full surround sound capability
 Line IN, Line Out, MIC IN in phone jacks and CD IN on PCB header
Table 1-1 Technical Specifications
System Monitoring
The IMB-8550 embedded board is capable of self-monitoring various aspects of its operating
status including:
 CPU, chipset, and battery voltage, +3.3V, +5V, and +12V
 RPM of cooling fans
 CPU and board temperatures (by the corresponding embedded sensors)
1-8
1-8
IEI®Technology, Corp.