Intel AIMB-744 User Manual

AIMB-744

Socket 478 Intel® Pentium®
4/Celeron® Industrial ATX
Motherboard with PCI-X/DDR/
AGP/Dual GbE/800 MHz FSB

User’s Manual

Copyright Notice

This document is copyrighted, 2004, by Advantech Co., Ltd. All rights
are reserved. Advantech Co., Ltd. reserves the right to make improve­ments to the products described in this manual at any time without notice.
No part of this manual may be reproduced, copied, translated or transmit­ted in any form or by any means without the prior written permission of
Advantech Co., Ltd. Information provided in this manual is intended to
be accurate and reliable. However, Advantech Co., Ltd. assumes no
responsibility for its use, nor for any infringements upon the rights of
third parties which may result from its use.
Acknowledgements

•AWARD is a trademark of Phoenix Technologies Ltd.

•IBM and PC are trademarks of International Business Machines Corpo­ration.

•Intel®, Pentium® 4, and Celeron® are trademarks of Intel Corporation.

•WinBond is a trademark of Winbond Corporation.
All other product names or trademarks are the properties of their respec­tive owners.

AIMB-744 User’s Manual ii

Part No. 2002074400 1st. Edition

Printed in Taiwan July 2004

1.0.1 A Message to the Customer

Advantech customer services

Each and every Advantech product is built to the most exacting specifica­tions to ensure reliable performance in the harsh and
demanding conditions typical of industrial environments. Whether your
new Advantech equipment is destined for the laboratory or the factory
floor, you can be assured that your product will provide the reliability and
ease of operation for which the name Advantech has come to be known.
Your satisfaction is our primary concern. Here is a guide to
Advantech’s customer services. To ensure you get the full benefit of our
services, please follow the instructions below carefully.

Technical support

We want you to get the maximum performance from your products. So if
you run into technical difficulties, we are here to help. For the most fre­quently asked questions, you can easily find answers in your product doc­umentation. These answers are normally a lot more detailed than the ones
we can give over the phone.

So please consult this manual first. If you still cannot find the answer,
gather all the information or questions that apply to your problem, and
with the product close at hand, call your dealer. Our dealers are well
trained and ready to give you the support you need to get the most from
your Advantech products. In fact, most problems reported are minor and
are able to be easily solved over the phone.

In addition, free technical support is available from Advantech engineers
every business day. We are always ready to give advice on application
requirements or specific information on the installation and operation of
any of our products.

iii

512MB DDR333 DDR Samsung K4H560838C-TCB3(32x8)

512MB DDR333 DDR Samsung K4H560838C-TCB3(32x8)

512MB DDR266 DDR Hynix Hy5DU56822AT

Table 1.1: AIMB-744 DDR memory compatibility table Memory_Compatibility_Test

Brand Size Speed Type Memory

Apacer 256MB DDR266 DDR infineon HYB25D25680BT-7(32x8)

Transcend 256MB DDR333 DDR MOSEL VITELIC V58C2256804SAT6

DSL 256MB DDR266 DDR SAMSUNG K4H560838D-TCB0(32x8)

Kingston 256MB DDR266 DDR Nanya NT5DS32MBAT-6

AIMB-744 User’s Manual iv

256MB DDR266 DDR Kingston D328DM-60 (32x8)

512MB DDR266 DDR Kingston D328DL-60 (32x8)

512MB DDR333 DDR Kingston D328DM-60(32x8)

512MB DDR266 DDR Kingston D328DP-75

512MB DDR333 DDR Nanya NT5DS32MBAT-6

Apacer 256MB DDR400 DDR PSC A2S56D30ATP -5 (32x8)

512MB DDR400 DDR PSC A2S56D30ATP -5 (32x8)

512MB DDR400 DDR MOSEL V58C2256804SAT5 (32x8)

Transcend 256MB DDR400 DDR MOSEL V58C2256804SAT5 (32x8)

Kingston 256MB DDR400 DDR Hynix HY5DU56822BT-D43(32x8)

512MB DDR400 DDR Kingston D3208DL1T-5

Table 1.2: AIMB-744 comparison table

Model AIMB-744G2-

00A1

LAN 1: Intel
82547GI 10/100/
1000Base-T

LAN 2: Intel
82541GI 10/100/
1000Base-T

Yes No Yes

Yes No No

AIMB-744L­00A1

AIMB-744G­00A1

1.0.2 Product warranty

Advantech warrants to you, the original purchaser, that each of its prod­ucts will be free from defects in materials and workmanship for two years
from the date of purchase.

This warranty does not apply to any products which have been repaired or
altered by persons other than repair personnel authorized by Advantech,
or which have been subject to misuse, abuse, accident or improper instal­lation. Advantech assumes no liability under the terms of this warranty as
a consequence of such events.

If an Advantech product is defective, it will be repaired or replaced at no
charge during the warranty period. For out-of-warranty repairs, you will
be billed according to the cost of replacement materials, service time and
freight. Please consult your dealer for more details.

If you think you have a defective product, follow these steps:

Step 1. Collect all the information about the problem encountered. (For

example, type of PC, CPU speed, Advantech products used,
other hardware and software used, etc.) Note anything abnormal
and list any on-screen messages you get when the problem
occurs.

Step 2. Call your dealer and describe the problem. Please have your man-

ual, product, and any helpful information readily available.

Step 3. If your product is diagnosed as defective, obtain an RMA (return

material authorization) number from your dealer. This allows us
to process your return more quickly.

v

Step 4. Carefully pack the defective product, a fully-completed Repair

and Replacement Order Card and a photocopy proof of purchase
date (such as your sales receipt) in a shippable container. A prod­uct returned without proof of the purchase date is not eligible for
warranty service.

Step 5. Write the RMA number visibly on the outside of the package and

ship it prepaid to your dealer.

1.0.3 Initial Inspection

Before you begin installing your motherboard, please make sure that the
following materials have been shipped:

• AIMB-744 Pentium ® 4/Celeron™ processor-based industrial mother
board

• 1 AIMB-744 Startup Manual

• 1 CD with driver utility and manual (in PDF format)

• 1 FDD cable P/N: 1700340640

• 2 Ultra ATA 66/100 HDD cables P/N: 1701400452

• 2 Serial ATA HDD data cable P/N: 1700071000

• 2 Serial ATA HDD power cable P/N: 1703150102

• 1 ATX 12V power converter cable P/N: 170304015K

• 1 Dual COM port cable kit P/N: 1701092300

• 1 I/O port bracket P/N: 1962015680

• 1 Two USB ports ext kit (optional) P/N: 1700100170

If any of these items are missing or damaged, contact your distributor or
sales representative immediately. We have carefully inspected the AIMB­744 mechanically and electrically before shipment. It should be free of
marks and scratches and in perfect working order upon receipt. As you
unpack the AIMB-744, check it for signs of shipping damage. (For exam­ple, damaged box, scratches, dents, etc.) If it is damaged or it fails to meet
the specifications, notify our service department or your local sales repre­sentative immediately. Also notify the carrier. Retain the shipping carton
and packing material for inspection by the carrier. After inspection, we
will make arrangements to repair or replace the unit.

1.0.4 Release Note

Date Revision Description

July 2004 1st. Edition Initial Release

AIMB-744 User’s Manual vi

Contents

Chapter 1 Hardware Configuration .................................2

1.1 Introduction ....................................................................... 2

1.2 Features ............................................................................. 3

1.3 Specifications .................................................................... 3

1.3.1 System............................................................................. 3

1.3.2 Memory........................................................................... 4

1.3.3 Input/Output.................................................................... 4

1.3.4 VGA interface ................................................................. 4

1.3.5 Ethernet LAN.................................................................. 4

1.3.6 Industrial features ........................................................... 5

1.3.7 Mechanical and environmental specifications ................ 5

1.4 Jumpers and Connectors.................................................... 5

Table 1.1:Jumpers ........................................................... 5

Table 1.2:Connectors...................................................... 6

1.5 Board Layout: Jumper and Connector Locations.............. 8

Figure 1.1:Jumper and Connector locations ................... 8

Figure 1.2:I/O Connectors .............................................. 8

1.6 AIMB-744 Block Diagram............................................... 9

Figure 1.3: AIMB-744 Block Diagram........................... 9

1.7 Safety Precautions .......................................................... 10

1.8 Jumper Settings ............................................................... 11

1.8.1 How to set jumpers ....................................................... 11

1.8.2 CMOS clear (J1) ........................................................... 11

Table 1.3:CMOS (J1).................................................... 11

1.8.3 Watchdog timer output (J2) .......................................... 11

Table 1.4:Watchdog timer output (J2).......................... 12

1.8.4 Riser card selection (J3 & J4) ....................................... 12

Table 1.5:Riser card selection (J3 & J4) ...................... 12

1.9 System Memory .............................................................. 13

1.9.1 CPU FSB and memory speed ....................................... 13

Table 1.6:CPU FSB and memory speed ....................... 13

1.9.2 Dual channel configuration........................................... 13

1.10 Memory Installation Procedures ..................................... 14

1.11 Cache Memory ................................................................ 14

1.12 Processor Installation ...................................................... 14

Chapter 2 Connecting Peripherals .................................18

2.1 Introduction ..................................................................... 18

2.2 Primary (CN1) and Secondary (CN2) IDE Connectors .. 18

2.3 Floppy Drive Connector (CN3)....................................... 19

2.4 Parallel Port (CN4).......................................................... 19

vii

2.5 USB Ports (CN6/CN63) .................................................. 20

2.6 VGA Connector (CN7) ................................................... 20

2.7 Serial Ports (COM1 : CN9; COM2 : CN10 ) .................. 21

2.8 PS/2 Keyboard and Mouse Conn (CN11) ....................... 21

2.9 External Keyboard Connector (CN12)............................ 22

2.10 CPU Fan Connector (CN14) ........................................... 22

2.11 System FAN connector (CN15 and CN37)..................... 22

2.12 Front Panel Connectors (CN16, 17, 18, 19, 21&29)....... 23

2.12.1 Power LED and Keyboard Lock (CN16) ..................... 23

2.12.2 External speaker (CN17) .............................................. 23

2.12.3 Reset (CN18) ................................................................ 23

2.12.4 HDD LED (CN19)........................................................ 24

2.12.5 ATX soft power switch (CN21).................................... 24

2.12.6 SM Bus Connector (CN29)........................................... 24

2.13 H/W Monitor Alarm (CN22)........................................... 24

2.14 USB and LAN ports (CN31 and CN32).......................... 25

2.15 CF socket (CN44)............................................................ 25

2.16 Line Out, Mic IN connector (CN55)............................... 26

2.17 Audio input from CD-ROM (CD IN; CN56) .................. 26

2.18 Aux Line-In connector (AUX IN; CN57) ....................... 26

2.19 Modem-In connector (MDM IN; CN58) ........................ 27

2.20 Front Panel audio connector (FP AUDIO; CN59) .......... 27

2.21 8-pin Alarm Board Connector (CN62)............................ 27

2.22 Case Open Connector (CN64)......................................... 28

2.23 Serial ATA interface (SA0 and SA1).............................. 28

2.24 Connecting to SNMP-1000 remote manager .................. 29

2.25 Auxiliary 4-pin power connector (ATX1) ...................... 29

Chapter 3 Award BIOS Setup.........................................32

3.1 Introduction ..................................................................... 32

3.1.1 CMOS RAM Auto-backup and Restore ....................... 32

3.2 Entering Setup ................................................................. 33

Figure 3.1:Award BIOS Setup initial screen ................ 33

3.3 Standard CMOS Setup .................................................... 33

Figure 3.2:Standard CMOS features screen ................. 33

3.4 Advanced BIOS Features ................................................ 34

Figure 3.3:Advanced BIOS features screen.................. 34

3.4.1 Hard Disk Boot Priority................................................ 34

3.4.2 Virus Warning............................................................... 34

3.4.3 CPU L1 & L2 Cache..................................................... 34

3.4.4 Hyper-Threading Technology....................................... 34

3.4.5 Quick Power On Self Test ............................................ 35

3.4.6 First/Second/Third Boot Device .................................. 35

3.4.7 Boot Other Device ........................................................ 35

AIMB-744 User’s Manual viii

3.4.8 Swap Floppy Drive ...................................................... 35

3.4.9 Boot UP Floppy Seek ................................................... 35

3.4.10 Boot Up NumLock Status............................................. 35

3.4.11 Gate A20 Option ........................................................... 35

3.4.12 Typematic Rate Setting................................................. 35

3.4.13 Typematic Rate (Chars/Sec) ......................................... 35

3.4.14 Typematic Delay (msec) ............................................... 35

3.4.15 Security Option ............................................................. 36

3.4.16 APIC Mode ................................................................... 36

3.4.17 MPS Version Control For OS ....................................... 36

3.4.18 OS Select For DRAM > 64MB .................................... 36

3.5 Advanced Chipset Features ............................................. 36

3.5.1 DRAM Timing Selectable ............................................ 37

3.5.2 CAS Latency Time ....................................................... 37

3.5.3 Active to Precharge Delay ............................................ 37

3.5.4 DRAM RAS# to CAS# Delay ..................................... 37

3.5.5 DRAM RAS# Precharge............................................... 37

3.5.6 Memory Frequency....................................................... 37

Figure 3.4:Advanced chipset features screen ............... 37

3.5.7 System BIOS Cacheable............................................... 38

3.5.8 Video Bios Cacheable................................................... 38

3.5.9 Memory Hole At 15M-16M ......................................... 38

3.5.10 Delay Prior to Thermal ................................................. 38

3.5.11 AGP Aperture Size (MB) ............................................. 38

3.5.12 Init Display First .......................................................... 38

3.5.13 On-Chip VGA............................................................... 38

3.5.14 On-Chip Frame Buffer Size .......................................... 38

3.6 Integrated Peripherals...................................................... 39

Figure 3.5:Integrated peripherals .................................. 39

Figure 3.6:On-Chip IDE Device ................................... 39

3.6.1 IDE HDD Block Mode ................................................. 40

3.6.2 On-Chip IDE Device .................................................... 40

3.6.3 On-Chip Serial ATA..................................................... 40

3.6.4 Serial ATA Port0/Port1 Mode ...................................... 40

Figure 3.7:Onboard Device........................................... 40

3.6.5 USB Controller ............................................................. 41

3.6.6 USB 2.0 Controller ....................................................... 41

3.6.7 USB Keyboard/Mouse Support .................................... 41

3.6.8 AC97 Audio .................................................................. 41

3.6.9 Onboard LAN1 Control ................................................ 41

3.6.10 Onboard LAN2 Control ................................................ 41

3.6.11 Onboard LAN Boot ROM ............................................ 41

Figure 3.8:SuperIO Device ........................................... 41

3.6.12 Onboard FDC Controller .............................................. 42

3.6.13 Onboard Serial Port 1 ................................................... 42

ix

3.6.14 Onboard Serial Port 2 ................................................... 42

3.6.15 UART Mode Select ...................................................... 42

3.6.16 RxD, TxD Active.......................................................... 42

3.6.17 IR Transmission Delay ................................................. 42

3.6.18 UR2 Duplex Mode........................................................ 42

3.6.19 Use IR Pins ................................................................... 42

3.6.20 Onboard Parallel Port.................................................... 42

3.6.21 Parallel Port Mode ........................................................ 42

3.6.22 EPP Mode Select .......................................................... 43

3.6.23 ECP Mode Use DMA ................................................... 43

3.6.24 PWRON After PWR-Fail ............................................. 43

3.7 Power Management Setup............................................... 43

Figure 3.9:Power management setup screen (1)........... 43

3.7.1 ACPI function ............................................................... 44

3.7.2 ACPI Suspend Type...................................................... 44

3.7.3 Power Management ...................................................... 44

3.7.4 Video Off Method......................................................... 44

3.7.5 Video Off In Suspend .................................................. 44

3.7.6 Suspend Type................................................................ 44

3.7.7 Modem Use IRQ........................................................... 44

3.7.8 Soft-Off by PWR-BTTN .............................................. 44

3.7.9 CPU THRM-Throttling................................................. 45

3.7.10 Resume on LAN/PCI PME#......................................... 45

3.7.11 Resume on Ring............................................................ 45

3.7.12 Resume on Alarm ......................................................... 45

3.7.13 Primary IDE 0 (1) and Secondary IDE 0 (1) ................ 45

3.7.14 FDD, COM, LPT PORT ............................................... 45

3.7.15 PCI PIRQ [A-D]# ........................................................ 46

3.8 PnP/PCI Configurations .................................................. 46

Figure 3.10:PnP/PCI configurations screen.................. 46

3.8.1 Reset Configuration Data.............................................. 46

3.8.2 Resources Controlled By .............................................. 46

3.8.3 PCI/VGA Palette Snoop ............................................... 46

3.9 PC Health Status.............................................................. 46

3.9.1 CPU Warning Temperature .......................................... 46

Figure 3.11:PC health status screen .............................. 47

3.9.2 Current System Temp ................................................... 47

3.9.3 Current CPU Temperature ............................................ 47

3.9.4 Current CPUFAN Speed............................................... 47

3.9.5 VCORE, +1.5V, VCC3, +5V, +12V, -12V, -5V,

VBAT(V), 5VSB(V)47

3.10 Spread Spectrum Control ................................................ 48

Figure 3.12:Spread Spectrum Control screen ............... 48

3.10.1 CPU Clock Ratio .......................................................... 48

3.10.2 Spread Spectrum ........................................................... 48

AIMB-744 User’s Manual x

3.11 Password Setting ............................................................. 48

3.12 Save & Exit Setup ........................................................... 49

3.13 Exit Without Saving ........................................................ 49

Chapter 4 Chipset Software Install Utility.....................52

4.1 Before you begin ............................................................. 52

4.2 Introduction ..................................................................... 52

4.3 Windows XP Driver Setup .............................................. 53

Chapter 5 VGA Setup ......................................................58

5.1 Introduction ..................................................................... 58

5.2 Dynamic Video Memory Technology............................. 58

5.3 Windows XP Driver Setup .............................................. 59

Chapter 6 LAN Configuration ........................................64

6.1 Introduction ..................................................................... 64

6.2 Features ........................................................................... 64

6.3 Installation ....................................................................... 65

6.4 Win XP Driver Setup (Intel 82547/41/62/51) ................. 65

Chapter 7 Onboard Security Setup ................................70

7.1 Introduction ..................................................................... 70

7.2 Windows XP Driver Setup .............................................. 71

7.3 Using the OBS Hardware Doctor Utility ........................ 74

Appendix A Programming the watchdog timer...............78

A.1 Programming the Watchdog Timer................................. 78

A.1.1 Watchdog timer overview............................................. 78

A.1.2 Reset/ Interrupt selection .............................................. 78

A.1.3 Programming the Watchdog Timer .............................. 78

A.1.4 Example Program ......................................................... 81

Appendix B Pin Assignments ............................................88

B.1 IDE Hard Drive Connector (CN1, CN2)......................... 88

Table B.1:IDE hard drive connector (CN1, CN2) ........ 88

B.2 Floppy Drive Connector (CN3)....................................... 89

Table B.2:Floppy drive connector (CN3)..................... 89

B.3 Parallel Port Connector (CN4) ........................................ 90

Table B.3:Parallel port connector (CN4) ...................... 90

B.4 USB Connector (CN6 and CN63) ................................... 91

Table B.4:USB1/USB2 connector (CN6 and CN63).... 91

B.5 VGA Connector (CN7) ................................................... 91

Table B.5:VGA connector (CN7) ................................. 91

B.6 COM1/COM2 RS-232 Serial Port (CN9, CN10)............ 92

Table B.6:COM1/2 RS-232 serial port (CN9/10)......... 92

B.7 Keyboard and Mouse Connnector (CN11)...................... 92

Table B.7:Keyboard and mouse connector (CN11)...... 93

xi

B.8 External Keyboard Connector (CN12)............................ 93

Table B.8:External keyboard connector (CN12) .......... 93

B.9 CPU/System Fan Power Conn (CN14/15/37) ................. 94

Table B.9:CPU/System Fan Power Conn (CN14/15/37)..

94

B.10 Power LED (CN16)......................................................... 94

Table B.10: Power LED and keylock conn (CN16)..... 94

B.11 External Speaker Connector (CN17)............................... 95

Table B.11:External Speaker Connector (CN17) ......... 95

B.12 Reset Connector (CN18) ................................................. 95

Table B.12:Reset connector (CN18)............................. 95

B.13 HDD LED Connector (CN19)......................................... 96

Table B.13:HDD LED connector (CN19) .................... 96

B.14 ATX Soft Power Switch (CN21) .................................... 96

Table B.14:ATX soft power switch (CN21)................. 96

B.15 H/W Monitor Alarm (CN22)........................................... 97

Table B.15:H/W monitor alarm (CN22)....................... 97

B.16 SM Bus Connector (CN29) ............................................. 97

Table B.16:SM Bus Connector (CN 29)....................... 97

B.17 USB/LAN ports (CN31 and CN32) ................................ 97

Table B.17:USB port .................................................... 97

Table B.18:Ethernet 10/100Base-T RJ-45 port ............ 98

B.18 CF socket (CN44) ........................................................... 98

Table B.19:CF socket (CN44) ...................................... 98

B.19 Line Out, Mic IN connector (CN55)............................... 99

B.20 Audio input from CD-ROM (CD IN; CN56) .................. 99

Table B.20:Audio in from CD-ROM (CD IN; CN56).. 99

B.21 Aux Line-In connector (AUX IN; CN57) ..................... 100

Table B.21:Aux Line-In connector (AUX IN; CN57) 100

B.22 Modem-In connector (MDM IN; CN58) ...................... 100

Table B.22:Modem-In connector (MDM IN; CN58) . 100

B.23 Front Panel audio connector (FP AUDIO; CN59) ........ 101

Table B.23:Front audio conn (FP AUDIO; CN59)..... 101

B.24 Case Open Connector (CN64)....................................... 101

Table B.24:Case Open Connector (CN64) ................. 101

B.25 8-pin Alarm Board Connector (CN62).......................... 102

Table B.25:8-pin Alarm Board Connector (CN62) .... 102

B.26 System I/O Ports............................................................ 102

Table B.26:System I/O ports ...................................... 102

B.27 DMA Channel Assignments.......................................... 103

Table B.27:DMA channel assignments ...................... 103

B.28 Interrupt Assignments ................................................... 104

Table B.28:Interrupt assignments ............................... 104

B.29 1st MB Memory Map .................................................... 104

AIMB-744 User’s Manual xii

Table B.29:1st MB memory map ............................... 104

B.30 PCI Bus Map ................................................................. 105

Table B.30:PCI bus map (for VE, E2 version) ........... 105

Table B.31:PCI bus map (for VG, G2 version) .......... 105

xiii

AIMB-744 User’s Manual xiv

CHAPTER

General Information

1

1

Chapter 1 Hardware Configuration

1.1 Introduction

Advantech's AIMB-744 series industrial motherboard is designed based
on the standard ATX form factor with additional industrial features such
as long product life, high reliability and manageability. It is flexible to be
installed in a commercial PC chassis or in an industrial grade rack mount­ing chassis. It meets the requirements of a variety of applications where a
commercial motherboard cannot fit.

The AIMB-744 uses Intel's 875P with 6300ESB chipset to support Intel's
Socket 478 Pentium 4 and Celeron processor with 800/533/400 MHz
front side bus. The dual channel DDR 400 SDRAM interface provides
bottleneck free memory bandwidth up to 6.4GB/s. In addition to the two
EIDE interfaces (up to four devices), it features a high performance serial
ATA interface (up to 150MB/s) which eases cabling to hard drives in
industrial chassis with thin and long cables. Other features include two
64-bit PCI-X (66MHz) slots, dual Giga-bit Ethernet ports, dual channel
Ultra 160 SCSI interface, four USB 2.0 ports (up to 480 Mbps), and other
standard PC functions like four RS-232 serial port interfaces, one
enhanced parallel port and floppy disk interface.

A backup of CMOS data is stored in the Flash memory, which protects
BIOS setup data even after a battery failure. Also included is a 255-level
watchdog timer, which resets the CPU or generates an interrupt if a pro­gram cannot be executed normally. This enables reliable operation in
unattended environments.

The remote management interface enables the AIMB-744 to be managed
through Ethernet when it is connected to the SNMP-1000 Remote HTTP/
SNMP System Manager.

Note: Some of the features mentioned above are not

available with all models. For more information
about the specifications of a particular model,
see Table 1.1 : Comparison table and Section

1.3: Specifications.

AIMB-744 User’s Manual 2

1.2 Features

1. Standard ATX form factor with industrial features: AIMB-744
provides industrial features like long product life, reliable operation
under wide temperature range, watchdog timer, CMOS backup
functions, etc.

2. PCI-X and PCI bus support: AIMB-744 equips with two 64-bit
PCI-X (66MHz) slots and 4 32-bit PCI slots , providing the high
performance computing systems.

3. Healthy status monitoring and remote management: System
voltage levels, fan speed, CPU temperature are monitored to ensure
stable operation. The remote management interface allows the sys­tem to be managed through Ethernet when it is connected to the
SNMP-1000 Remote HTTP/SNMP System Manager.

4. BIOS CMOS backup and restore: When BIOS CMOS setup has
been completed, data in the CMOS RAM is automatically backed
up to the Flash ROM. This is particularly useful in harsh environ­ments which may cause setup data loss such as battery failure.
Upon such an error occurring, BIOS will check the data, and auto­matically restore the original data for booting.

5. Automatically power on after power failure: It is often required
to have an unattended system come back to operation when power
resumes after a power failure. Advantech's industrial motherboard
allows users to set the system to power on automatically without
pushing the power on button.

1.3 Specifications

1.3.1 System

• CPU: Intel® socket 478 Celeron® 2.0~2.8 GHz, Pentium® 4 up to

3.4 GHz, FSB 400/533/800 MHz; suppports Intel Hyper-Threading
technology. Does not support CPU with 1.75V core voltage (Wil­lamete).

• L2 Cache: CPU built-in 128/256/512/1024 KB full-speed L2 cache

• BIOS: Award Flash BIOS (4Mb Flash Memory)

• System Chipset: Intel 875P with 6300ESB

• SATA/EIDE hard disk drive interface:

dent serial ATA hard drives (up to 150MB/s) and two IDE hard disk

3

Supports up to two indepen-

drives or four enhanced IDE devices. Supports PIO mode 4 (16.67MB/s
data transfer rate) and ATA 33/66/100 (33/66/100MB/s data transfer
rate.) BIOS enabled/disabled.

• Floppy disk drive interface: Supports up to two floppy disk drives,

5¼" (360 KB and 1.2 MB) and/or 3½" (720 KB, 1.44 MB). BIOS
enabled/disabled

1.3.2 Memory

• RAM:

Up to 4GB in four 184-pin DIMM sockets. Supports dual channel

DDR266/333/400 SDRAM

1.3.3 Input/Output

• PCI-X bus : 2 PCI-X slots, 64-bit, 66MHz. PCI 2.2 compliant

• PCI Bus: 4 PCI slots, 32-bit, 33MHz. PCI 2.2 compliant

• Enhanced parallel port: Configured to LPT1, LPT2, LPT3, or dis-

abled. Standard DB-25 female connector provided. Supports EPP/SPP/
ECP

• Serial ports: Four RS-232 ports with two DB-9 connectors and two

onboard pin headers for extension. Supports speeds up to 115.2 Kbps.
Ports can be individually configured to COM1, COM2, COM3, COM4
or disabled

• Keyboard and PS/2 mouse connector:

tors are located on the mounting bracket for easy connection to a key­board and PS/2 mouse.

• USB port: Supports up to four USB 2.0 and transmission rate up to

480Mbps.

Two 6-pin mini-DIN connec-

1.3.4 AGP interface

• AGP port: One AGP 8X/4X slot, 0.8V and 1.5V only

1.3.5 Ethernet LAN

• Supports single/dual 10/100/1000Base-T Ethernet networking

• Controller:

LAN 1 Intel 82547GI (CSA)

LAN 2: Intel 82541GI (PCI)

AIMB-744 User’s Manual 4

1.3.6 Industrial features

• Watchdog timer: Can generate a system reset or IRQ11. The watch-

dog timer is programmable, with each unit equal to one second or one
minute (255 levels)

1.3.7 Mechanical and environmental specifications

• Operating temperature: 0°~60° C (32° ~ 140° F, Depending on CPU)

• Storage temperature: -20°~ 70° C (-4° ~ 158° F)

• Humidity: 20 ~ 95% non-condensing

• Power supply voltage: +3.3V, +5 V, ±12 V

• Power consumption: Typical : +3.3V:8.13A, +5V:0.57A ,

+12V:5.29A (Intel Pentium® 4 3.2GHz, 4GB DDR 400)

• Board size: 304.8 x 228.6 mm (12" x 9.6"")

• Board weight: 0.7 kg (1.68 lb)

1.4 Jumpers and Connectors

Connectors on the AIMB-744 motherboard link it to external devices
such as hard disk drives and a keyboard. In addition, the board has a num­ber of jumpers used to configure your system for your application.

The tables below list the function of each of the board jumpers and con­nectors. Later sections in this chapter give instructions on setting jump­ers. Chapter 2 gives instructions for connecting external devices to your
motherboard.

Table 1.1: Jumpers

Label

J1 CMOS Clear

J2 Watchdog timer output selection

J5 PCI-X 33/66Mhz selection 1

J6 PCI-X 33/66MHz selection 2

J8 PCI slots 3.3V/5V selection

Function

5

Table 1.2: Connectors

Label

CN1 Primary IDE connector

CN2 Secondary IDE connector

CN3 Floppy drive connector

CN4 Parallel port

CN6 USB port 4, 5 (shared with CN32)

CN9 Serial port: COM1

CN10 Serial port connector: COM3

CN11 PS/2 keyboard and mouse connector

CN12 External keyboard connector

CN14 CPU FAN connector

CN15 System FAN connector 1

CN16 Power LED and Keyboard Lock

CN17 External speaker

CN18 Reset connector

CN19 HDD LED connector

CN21 ATX soft power switch (PS_ON)

CN22 HW Monitor Alarm

CN23 Serial port connector: COM4

CN29 SM BUS Connector

CN31 USB port 0, 1 & LAN1

CN32 USB port 2, 3 & LAN2

CN37 System FAN connector 2

CN38 Serial port: COM2

CN55 Line Out, Mic IN connector

CN56 CD IN (Audio input from CD-ROM)

CN57 AUX IN connector

CN59 FP AUDIO connector

Function

Close: Enable OBS Alarm
Open: Disable OBS Alarm

PIN1: SMB_DATA
PIN2: SMB_CLOCK

AIMB-744 User’s Manual 6

Table 1.2: Connectors

CN62 8-pin Alarm Board Connector

CN64 Case Open

SA0 Serial ATA 0

SA1 Serial ATA 1

ATX1 ATX 12V Auxiliary power connector

ATX2 ATX power connector

7

1.5 Board Layout: Jumper and Connector Locations

38CN

9

CN4

CN11

CN14

CN64

CN62

CN59

PCI-X2

PCI-X1

PCI4

CN12

J5

J6J5

SA0 S A1

PCI3 PCI2 PCI1

CN6

J1

J7

DIMM1

DIMM2

DIMM3

DIMM4

AGP1

CN2

CN1

J8

CN13

J2 CN22

CN29

CN18

CN16

CN19

CN17

CN21

CN23

CN10

CN3

CN37

CN32

ATX2

CN31

CN56

CN55

CN57

ATX1

CN

CN15

Figure 1.1: Jumper and Connector locations

CN11

C

N38

C

N38

C

Figure 1.2: I/O Connectors

AIMB-744 User’s Manual 8

N9

CN55

CN31 CN32

1.6 AIMB-744 Block Diagram

Proce ssor

B
S
F
z
H
M
0
0
8

/
3
3
5
/
0
0
4

AGP Slot

G-L AN1 :
82547 G I

2ATA 100

po r t s

2 SATA po rts

4USBPorts

A udio C odec

AGP 8X

CSA

266MB/s

DMA 33/66/100

150MB/s

USB 2.0/1.1

AC-97

I n t el 82875P

266M B /s

Hub Link 1.5

In tel

6300 E S B

Hance Rapids

ChannelA

ChannelB

,
s
u
B
I
C
P

z
H
M
3
3

/
t

i
b
2
3

D D R 266 / 333 / 400

D D R 266 / 333 / 400

D D R 266 / 333 / 400

D D R 266 / 333 / 400

G-L AN2 : 82541 GI

32-bit/33M Hz

PCI1~4

PCI-X1~2

64-bit/66M H z

BIOS

LPC Bus

Supe r IO
Winbon d

W83627 H F

PCI-X Bus

Figure 1.3: AIMB-744 Block Diagram

9

1.7 Safety Precautions

Warning! Always completely disconnect the power cord

from your chassis whenever you work with the
hardware. Do not make connections while the
power is on. Sensitive electronic components
can be damaged by sudden power surges. Only
experienced electronics personnel should open
the PC chassis.

Caution! Always ground yourself to remove any static

charge before touching the motherboard. Mod­ern electronic devices are very sensitive to
static electric charges. As a safety precaution,
use a grounding wrist strap at all times. Place
all electronic components on a static-dissipative
surface or in a static-shielded bag when they
are not in the chassis.

Caution! The computer is provided with a battery-pow-

ered Real-time Clock circuit. There is a danger
of explosion if battery is incorrectly replaced.
Replace only with same or equivalent type rec­ommended by the manufacturer. Discard used
batteries according to manufacturer's instruc­tions.

Caution! There is a danger of a new battery exploding if

it is incorrectly installed. Do not attempt to
recharge, force open, or heat the battery.
Replace the battery only with the same or
equivalent type recommended by the manufac­turer. Discard used batteries according to the
manufacturer’s instructions.

AIMB-744 User’s Manual 10

This device complies with the requirements in part
15 of the FCC rules: Operation is subject to the fol­lowing two conditions:

1.This device may not cause harmful interference,
and

2.This device must accept any interference
received, including interference that may cause
undesired operation

This equipment has been tested and found to com­ply with the limits for a Class A digital device, pursu­ant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against
harmful interference when the equipment is oper­ated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance
with the instruction manual, may cause harmful
interference to radio communications. Operation of
this device in a residential area is likely to cause
harmful interference in which case the user will be
required to correct the interference at his/her own
expense. The user is advised that any equipment
changes or modifications not expressly approved
by the party responsible for compliance would void
the compliance to FCC regulations and therefore,
the user's authority to operate the equipment.

11

1.8 Jumper Settings

This section provides instructions on how to configure your motherboard
by setting the jumpers. It also includes the motherboards's default settings
and your options for each jumper.

1.8.1 How to set jumpers

You can configure your motherboard to match the needs of your applica­tion by setting the jumpers. A jumper is a metal bridge that closes an elec­trical circuit. It consists of two metal pins and a small metal clip (often
protected by a plastic cover) that slides over the pins to connect them. To
“close” (or turn ON) a jumper, you connect the pins with the clip. To
“open” (or turn OFF) a jumper, you remove the clip. Sometimes a jumper
consists of a set of three pins, labeled 1, 2, and 3. In this case you connect
either pins 1 and 2, or 2 and 3. A pair of needle-nose pliers may be useful
when setting jumpers.

1.8.2 CMOS clear (J1)

The AIMB-744 motherboard contains a jumper that can erase CMOS
data and reset the system BIOS information. Normally this jumper should
be set with pins 1-2 closed. If you want to reset the CMOS data, set J1 to
2-3 closed for just a few seconds, and then move the jumper back to 1-2

closed. This procedure will reset the CMOS to its default setting.

Table 1.3: CMOS (J1)

Function Jumper Setting

* Keep CMOS data

1-2 closed

Clear CMOS data

2-3 closed

* default setting

1.8.3 Watchdog timer output (J2)

The AIMB-744 contains a watchdog timer that will reset the CPU or send
a signal to IRQ11 in the event the CPU stops processing. This feature
means the AIMB-744 will recover from a software failure or an EMI

AIMB-744 User’s Manual 12

problem. The J2 jumper settings control the outcome of what the com­puter will do in the event the watchdog timer is tripped.

Table 1.4: Watchdog timer output (J2)

Function

Jumper Setting

IRQ11

* Reset

* default setting

1

1-2 closed

1

2-3 closed

Note: The interrupt output of the watchdog timer is a

low level signal. It will be held low until the
watchdog timer is reset.

1.8.4 PCI-X 33/66Mhz selection (J5 & J6)

The AIMB-744 contains a PCI-X 33/66Mhz selection that enables the
PCI-X slots different modes. The default mode is PCI 33MHz which
close both J5 and J6. While close J6 only the slots work in PCI 66MHz
mode. To enable PCI-X 66MHz mode, please close J5 only.

Table 1.5: PCI-X 33/66MHz selection (J5&J6)

Function Jumper Setting

*PCI 33MHz

PCI 66MHz

PCI-X 66MHz

J5-J6

J6 Close

J5 Close

13

1.8.5 PCI-X slots 3.3V/5V selection (J8)

The AIMB-744 contains a PCI-X 3.3V/5V selection that provide the user
to select the operation voltage either 3.3V or 5V. The default setting is

3.3V which close pin1 and pin2. By closing pin2 and pin3, the operation

voltage change to 5V.

Table 1.6: PCI-X slots 3.3V/5V selection (J8)

Function Jumper Setting

*3.3V

1-2 Closed

5V

2-3 Closed

1.9 System Memory

The AIMB-744 has four sockets for 184-pin dual inline memory modules
(DIMMs) in two separated memory channels. It can operate with single
channel or dual channel modules. We recommend to use dual channel
mode to provide optimized performance.

All these sockets use 2.5 V unbuffered double data rate synchronous
DRAMs (DDR SDRAM). They are available in capacities of 128, 256,
512 and 1024 MB. The sockets can be filled in any combination with
DIMMs of any size, giving a total memory size between 128 MB and 4
GB.

Note: System resources such as PCI and AGP cards require phys­ical memory address locations that reduce available memory
addresses above 3GB. This may result in less than 4GB of mem­ory being available to the operating system and applications.

1.9.1 CPU FSB and memory speed

The AIMB-744 can accept DDR SDRAM memory chips without parity.
Also note: The AIMB-744 accepts PC2100 (DDR266), PC2700 (DDR

333) and PC3200 (DDR 400) DDR SDRAM, depending on the CPU

front side bus frequency (FSB). Please refer below table for the relation­ship between the CPU FSB and memory speed.

Table 1.7: CPU FSB and memory speed

AIMB-744 User’s Manual 14

Memory
Speed

DDR400 Pentium 4 800 MHz 400 MHz

DDR333 Pentium 4 800 MHz 320 MHz

DDR266 Pentium 4 533 or 400 MHz 266 MHz

Processor FSB frequency Memory speed Outcome

Pentium 4 533MHz 333 MHz

Pentium 4
or Celeron

Celeron 400 MHz 266 MHz

400 MHz 266 MHz

The AIMB-744 does not support ECC (error checking and correction).
Memory modules with 9 SDRAM chips/side support ECC; modules with
8 chips/side do not support ECC.

1.9.2 Dual channel configuration

The four DIMM sockets are arranged in two channels: DIMM1 &
DIMM2 in channel A; DIMM3 & DIMM4 in channel B. To enable dual
channel operation, please install a matched pair of DIMMs in DIMM1 &
DIMM3 (green sockets). If additional memory is to be used, another
matched pair of DIMMs have to be installed in DIMM2 & DIMM4 (pur­ple sockets).

"Matched pair of DIMMs" means: same in speed (DDR266, DDR333,
DDR400), same in size (128MB, 256MB, 512MB or 1GB), same in chip
density (128 Mb, 256Mb or 512Mb and same in CSA latency. Any other
memory configuration will result in single channel memory operation.

1.10 Memory Installation Procedures

To install DIMMs, first make sure the two handles of the DIMM socket
are in the "open" position. i.e. The handles lean outward. Slowly slide the
DIMM module along the plastic guides on both ends of the socket. Then
press the DIMM module right down into the socket, until you hear a
click. This is when the two handles have automatically locked the mem­ory module into the correct position of the DIMM socket. To remove the
memory module, just push both handles outward, and the memory mod­ule will be ejected by the mechanism in the socket.

15

1.11 Cache Memory

Since the second-level (L2) cache has been embedded into the Intel®
socket 478 Pentium® 4/Celeron™ processor, you do not have to take
care of either SRAM chips or SRAM modules. The built-in second-level
cache in the processor yields much higher performance than the external
cache memories. The cache size in the Intel ® Pentium ® 4 processor is
512/1024 KB. In the Celeron CPU, the cache size is 128/256KB.

1.12 Processor Installation

The AIMB-744 is designed for Intel Pentium® 4 processor/Celeron™
(socket 478) up to 3.4/2.8 GHz with HT technology.

Note: Slim Heatsink & Fan is available from Advan-

tech. Please contact with Advantech's sales
representative if needed.

Step 1 : Lift the processor socket lever

Step 2 : Align the corner having the triangle marking on the processor

with the corner where the lever is attached to the socket

Step 3 : Lower the lever to its original position

AIMB-744 User’s Manual 16

CHAPTER

Connecting
Peripherals

2

17 Chapter 2

Chapter 2 Connecting Peripherals

2.1 Introduction

You can access most of the connectors from the top of the board while it
is installed in the chassis. If you have a number of cards installed or have
a packed chassis, you may need to partially remove the card to make all
the connections.

2.2 Primary (CN1) and Secondary (CN2) IDE Connec­tors

CN1

CN2

You can attach up to four IDE (Integrated Drive Electronics) drives to the
AIMB-744’s built-in controller. The primary (CN1) and secondary (CN2)
connectors can each accommodate two drives.

Wire number 1 on the cable is red or blue and the other wires are gray.
Connect one end to connector CN1 or CN2 on the motherboard. Make
sure that the red/blue wire corresponds to pin 1 on the connector (in the
upper right hand corner). See Chapter 1 for help finding the connector.

Unlike floppy drives, IDE hard drives can connect in either position on
the cable. If you install two drives to a single connector, you will need to
set one as the master and the other as the slave. You do this by setting the
jumpers on the drives. If you use just one drive per connector, you should
set each drive as the master. See the documentation that came with your
drive for more information.

Connect the first hard drive to the other end of the cable. Wire 1 on the
cable should also connect to pin 1 on the hard drive connector, which is
labeled on the drive circuit board. Check the documentation that came
with the drive for more information.

AIMB-744 User’s Manual 18

Connect the second hard drive to the remaining connector (CN2 or CN1),
in the same way as described above. The secondary IDE shares the same
resource with CF (CompactFlash) socket. CF card is only available for
master mode. While setting CF as master, the other IDE device con­nected to secondary IDE can work as a slave device only and vice versa.

2.3 Floppy Drive Connector (CN3)

CN3

You can attach up to two floppy disk drives to the AIMB-744's onboard
controller. You can use 3.5" (720 KB, 1.44 MB) drives.

The motherboard comes with a 34-pin daisy-chain drive connector cable.
On one end of the cable is a 34-pin flat-cable connector. On the other end
are two sets of 34-pin flat-cable connector (usually used for 3.5" drives).
The set on the end (after the twist in the cable) connects to the A: floppy
drive. The set in the middle connects to the B: floppy drive.

2.4 Parallel Port (CN4)

CN4

The parallel port is normally used to connect the motherboard to a printer.
The AIMB-744 includes an onboard parallel port, accessed through a 26­pin flat-cable connector, CN4.

19 Chapter 2

2.5 USB Ports (CN6; shared with CN32)

CN6/CN63

The AIMB-744 provides up to four ports of USB (Universal Serial Bus)
interface, which gives complete Plug & Play and hot swapping for up to
127 external devices.The USB interface complies with USB Specification
Rev. 2.0 support transmission rate up to 480 Mbps and is fuse-protected.
The USB interface can be disabled in the system BIOS setup.

Limitation: On 00A1 version, when CN6 is used, both transmission rates
of CN6 and CN32 will drop to 24 Mbps.

2.6 Serial Ports (COM1 : CN9; COM2 : CN38 ; COM3 : CN10 ; COM4 : COM23)

CN9

The AIMB-744 offers two serial ports and two onboard connectors, CN9
as COM1, CN38 as COM2, CN10 as COM3 and CN23 as COM4. These
ports can connect to serial devices, such as a mouse or a printer, or to a
communications network.

The IRQ and address ranges for both ports are fixed. However, if you
want to disable the port or change these parameters later, you can do this
in the system BIOS setup.

AIMB-744 User’s Manual 20

CN10

Different devices implement the RS-232 standard in different ways. If
you are having problems with a serial device, be sure to check the pin
assignments for the connector.

2.7 PS/2 Keyboard and Mouse Conn (CN11)

Two 6-pin mini-DIN connectors (CN11) on the motherboard provide
connection to a PS/2 keyboard and a PS/2 mouse, respectively.

2.8 External Keyboard Connector (CN12)

CN11

CN12

In addition to the PS/2 mouse/keyboard connector on the AIMB-744's
rear plate, there is also an extra onboard external keyboard connector.
This gives system integrators greater flexibility in designing their sys­tems.

21 Chapter 2

2.9 CPU Fan Connector (CN14)

CN14

If fan is used, this connector supports cooling fans of 500mA (6W) or
less.

2.10 System FAN connector (CN15 and CN37)

If fan is used, this connector supports cooling fans of 500mA (6W) or less.

2.11 Front Panel Connectors (CN16, 17, 18, 19, 21&29)

There are several external switches to monitor and control the AIMB-744

CN16,17,18,19,21,29

2.11.1 Power LED and Keyboard Lock (CN16)

AIMB-744 User’s Manual 22

CN16 is a 5-pin connector for the power on LED. Refer to Appendix B
for detailed information on the pin assignments. If a PS/2 or ATX power
supply is used, the system's power LED status will be as indicated below:

Table 2.1: PS/2 or ATX power supply LED status

Power mode LED (PS/2 power) LED (ATX power)
System On On On
System Suspend Fast flashes Fast flashes
System Off Off Slow flashes

2.11.2 External speaker (CN17)

CN17 is a 4-pin connector for an extenal speaker. If there is no external
speaker, the AIMB-744 provides an onboard buzzer as an alternative. To
enable the buzzer, set pins 3-4 as closed

2.11.3 Reset (CN18)

Many computer cases offer the convenience of a reset button. Connect the
wire from the reset button

1

2.11.4 HDD LED (CN19)

You can connect an LED to connector CN19 to indicate when the HDD is
active.

1

2.11.5 ATX soft power switch (CN21)

If your computer case is equipped with an ATX power supply, you should
connect the power on/off button on your computer case to CN21. This
connection enables you to turn your computer on and off.

23 Chapter 2

2.11.6 SM Bus Connector (CN29)

This connector is reserved for Advantech's SNMP-1000 HTTP/SNMP
Remote System Manager. The SNMP-1000 allows users to monitor the
internal voltages, temperature and fans from a remote computer through
an Ethernet network.

CN29 can be connected to CN19 of SNMP-1000. Please be careful about
the pin assignments, pin 1 must be connected to pin 1 and pin2 to pin 2 on
both ends of cable.

2.12 H/W Monitor Alarm (CN22)

To enable or disable the function of buzzer.

2.13 USB and LAN ports (CN31 and CN32)

CN32 CN31

The AIMB-744 provides up to four USB (Universal Serial Bus) ports,
which gives complete Plug & Play and hot swapping for up to 127 exter­nal devices.The USB interface complies with USB Specification Rev. 2.0
support transmission rate up to 480 Mbps and is fuse-protected. The USB
interface can be disabled in the system BIOS setup.

AIMB-744 User’s Manual 24

The AIMB-744 is equipped with one or two high-performance 10/100/
1000 Mbps Ethernet LANs. They are supported by all major network
operating systems. The RJ-45 jacks on the rear plate provide convenient
or 10/100/1000 Base-T operation.

2.14 Line Out, Mic IN connector (CN55)

The Line Out is to output the audio signal to external audio device, like
speakers or headphones. The Mic IN is to input the audio signal via
microphones.

2.15 Audio input from CD-ROM (CD IN; CN56)

The CD IN is a connector for CD-ROM to input the audio signal.

25 Chapter 2

2.16 Aux Line-In connector (AUX IN; CN57)

The connector is for audio device with Line-in connector.

2.17 Front Panel audio connector (FP AUDIO; CN59)

The FPAUDIO is a front panel audio connector compliant with Intel®
Front Panel I/O Connectivity Design Guide. To direct the audio signal
output to the rear audio ports, the 5 and 6 pins, 9 and 10 pins must be
shorted by jumper to activate the rear panel audio function.

AIMB-744 User’s Manual 26

2.18 8-pin Alarm Board Connector (CN62)

The 8-pin alarm board connector is for Advantech chassis with alarm
board.

2.19 Case Open Connector (CN64)

The 2-pin case open connector is for chassis with case open censor. While
opening the case, the buzzer on motherboard will ring.

2.20 Serial ATA interface (SA0 and SA1)

In addition to the two EIDE interfaces (up to four devices), the AIMB­744 features high performance serial ATA interface (up to 150MB/s)

27 Chapter 2

which eases cabling to hard drives with thin and long cables.

2.21 Connecting to SNMP-1000 remote manager

Use the 6-pin to 8-pin cable to connect the motherboard to SNMP-1000.
This cable comes with the SNMP-1000.

2.22 Auxiliary 4-pin power connector (ATX1)

To ensure the sufficiency of power supply for Pentium® 4 motherboard,
one auxiliary 4 pin power connector is available on AIMB-744. ATX1
must be used to provide sufficient 12V to ensure the stable operation of
the system.

AIMB-744 User’s Manual 28

Award BIOS Setup

CHAPTER

3

29 Chapter 3

Chapter 3 Award BIOS Setup

3.1 Introduction

Award’s BIOS ROM has a built-in setup program that allows users to
modify the basic system configuration. This type of information is stored
in battery-backed memory (CMOS RAM) so that it retains the setup
information when the power is turned off.

3.1.1 CMOS RAM Auto-backup and Restore

The CMOS RAM is powered by an onboard button cell battery. When
you finish BIOS setup, the data in CMOS RAM will be automatically
backed up to Flash ROM. If operation in harsh industrial environment
cause a soft error, BIOS will recheck the data in CMOS RAM and auto­matically restore the original data in Flash ROM to CMOS RAM for
booting.

Note: If you intend to change the CMOS setting with-

out restoring the previous backup, you have to
click on "DEL" within two seconds of the
"CMOS checksum error..." display screen mes­sage appearing. Then enter the "Setup" screen
to modify the data. If the "CMOS checksum
error..."message appears again and again,
please check to see if you need to replace the
battery in your system.

AIMB-744 User’s Manual 30

3.2 Entering Setup

Turn on the computer and press <Del> to allow you to enter the BIOS
setup.

Figure 3.1: Award BIOS Setup initial screen

3.3 Standard CMOS Setup

Choose the “Standard CMOS Features” option from the “Initial Setup
Screen” menu, and the screen below will be displayed. This menu allows
users to configure system components such as date, time, hard disk drive,
floppy drive, display, and memory.

Figure 3.2: Standard CMOS features screen

31 Chapter 3

3.4 Advanced BIOS Features

The “Advanced BIOS Features” screen appears when choosing the
“Advanced BIOS Features” item from the “Initial Setup Screen” menu. It
allows the user to configure the AIMB-744 according to his particular
requirements. Below are some major items that are provided in the
Advanced BIOS Features screen. A quick booting function is provided
for your convenience. Simply enable the Quick Booting item to save
yourself valuable time

Figure 3.3: Advanced BIOS features screen

3.4.1 Hard Disk Boot Priority

Select hard disk boot device priority.

3.4.2 Virus Warning

Enable virus warning, the commands are "Enabled" or "Disabled".

3.4.3 CPU L1 & L2 Cache

Enabling this feature speeds up memory access. The commands are
“Enabled” or “Disabled.”

3.4.4 Hyper-Threading Technology

While using CPU with Hyper-Threading technology, you can select
"Enabled" to enable Hyper Threading Technology in OS which supports
Hyper-Threading Technology or select "Disabled" for other OS which do
not support HT technology.

AIMB-744 User’s Manual 32

3.4.5 Quick Power On Self Test

Allows the system to skip certain tests while booting. This will decrease
the time needed to boot the system.

3.4.6 First/Second/Third Boot Device

The BIOS tries to load the OS with the devices in the sequence selected.
Choices are: "Floppy", "LS120", "HDD-0", "SCSI", "CDROM", "HDD­1", "HDD-2", "HDD-3", "ZIP100", "USB-FDD", "USB-ZIP", "USB­CDROM", "USB-HDD", "LAN", "Disabled".

3.4.7 Boot Other Device

Choose other device to boot, the choice is "Enabled" or "Disabled".

3.4.8 Swap Floppy Drive

If the system has two floppy drives, choose "Enabled" to assign physical
drive B to logical drive A and vice-versa. The commands are “Enabled”
or “Disabled.”

3.4.9 Boot UP Floppy Seek

Selection of the command “Disabled” will speed the boot up. Selection of
“Enabled” searches disk drives during boot up.

3.4.10 Boot Up NumLock Status

This feature selects the “power on” state for NumLock. The commands
are “Off” or “On.”

3.4.11 Gate A20 Option

"Normal": A pin in the keyboard controller controls GateA20.

"Fast" (Default): Lets chipset control GateA20.

3.4.12 Typematic Rate Setting

The typematic rate is the rate key strokes repeat as determined by the key­board controller. The commands are “Enabled” or “Disabled”. Enabling
allows the typematic rate and delay to be selected.

3.4.13 Typematic Rate (Chars/Sec)

BIOS accepts the following input values (characters/second) for type­matic rate: 6, 8, 10, 12, 15, 20, 24, 30.

3.4.14 Typematic Delay (msec)

Typematic delay is the time interval between the appearance of two con­secutive characters, when holding down a key. The input values for this
category are: 250, 500, 750, 1000 (msec).

33 Chapter 3

3.4.15 Security Option

Select whether the password is required every time the system boots or
only when you enter setup.

"System" The system will not boot, and access to Setup will be denied
if the correct password is not entered at the prompt.

"Setup" The system will boot, but access to Setup will be denied if
the correct password is not entered at the prompt.

Note: To disable security, select “PASSWORD SET-

TING” in the main menu. At this point, you will
be asked to enter a password. Simply press
<Enter> to disable security. When security is
disabled, the system will boot, and you can
enter Setup freely.

3.4.16 APIC Mode

This setting allows to enable the APIC mode, the choice is “Disabled” or
“Enabled.”

3.4.17 MPS Version Control For OS

This reports if an FDD is available for Windows 95. The selections are

"1.1" or "1.4."

3.4.18 OS Select For DRAM > 64MB

Select OS2 only if you are running OS/2 operating system with greater
than 64MB of RAM on the system. Commands are “Non-OS2” or “OS2.”

3.5 Advanced Chipset Features

By choosing the “Advanced Chipset Features” option from the “Initial
Setup Screen” menu, the screen below will be displayed. This sample
screen contains the manufacturer’s default values for the AIMB-744, as
shown in Figure 3-4:

Note: DRAM default timings have been carefully cho-

sen and should ONLY be changed if data is
being lost. Please first contact technical sup­port.

AIMB-744 User’s Manual 34

Figure 3.4: Advanced chipset features screen

3.5.1 DRAM Timing Selectable

This item allows you to control the DRAM speed. The selections are
"Manual" or "By SPD".

3.5.2 CAS Latency Time

This controls the latency between DDR RAM read command and the
time that the data actually becomes available. Leave this on the default
setting. The options are "2", "2.5" or "3".

3.5.3 Active to Precharge Delay

This item allows you to select the value in this field, depending on
whether the board has paged DRAMs or EDO (extended data output)
DRAMs. The Choice: "8", "7", "6" and "5".

3.5.4 DRAM RAS# to CAS# Delay

In order to improve performance, certain space in memory is reserved for
ISA cards. This memory must be mapped into the memory space below
16MB. The Choice: "4", "3" and ''2".

3.5.5 DRAM RAS# Precharge

This controls the idle clocks after issuing a precharge command to
DRAM. Leave this on the default setting. The choice : "4", "3" and "2".

3.5.6 Memory Frequency

To adjust the frequency of memory. The choice : "DDR266", "DDR333",
"DDR400" and "Auto".

35 Chapter 3

3.5.7 System BIOS Cacheable

Selecting Enabled allows caching of the system BIOS ROM at F0000h­FFFFFh, resulting in better system performance. However, if any pro­gram writes to this memory area, a system error may occur. The Choices:
"Enabled", "Disabled".

3.5.8 Video Bios Cacheable

Selecting Enabled allows caching of the video BIOS, resulting in better
system performance. However, if any program writes to this memory
area, a system error may occur. The Choices: "Enabled", "Disabled".

3.5.9 Memory Hole At 15M-16M

Enabling this feature reserves 15 MB to 16 MB memory address space
for ISA expansion cards that specifically require this setting. This makes
memory from 15 MB and up unavailable to the system. Expansion cards
can only access memory up to 16 MB. The default setting is “Disabled.”

3.5.10 Delay Prior to Thermal

Select the period if user wants to lower the CPU speed when CPU tem­perature is too high. The choice: "4 Min", "8 Min", "16 Min" and "32
Min".

3.5.11 AGP Aperture Size (MB)

Select the size of Accelerated Graphics Port (AGP) aperture. The aper­ture is a portion of the PCI memory address range dedicated for graphics
memory address space. Host cycles that hit the aperture range are for­warded to the AGP without any translation. The Choice : "4", "8", "16",
"32", "64", "128", and "256".

3.5.12 On-Chip Frame Buffer Size

User can select frame buffer size. Option is :"1MB", "8MB" and "16MB".

AIMB-744 User’s Manual 36

3.6 Integrated Peripherals

Figure 3.5: Integrated peripherals

Figure 3.6: On-Chip IDE Device

37 Chapter 3

3.6.1 IDE HDD Block Mode

If your IDE hard drive supports block mode select Enabled for automatic
detection of the optimal number of block read/writes per sector the drive
can support.

3.6.2 On-Chip IDE Device

IDE Primary (Secondary) Master/Slave PIO/UDMA Mode (Auto) Each
channel (Primary and Secondary) has both a master and a slave, making
four IDE devices possible. Because each IDE device may have a different
Mode timing (0, 1, 2, 3, 4), it is necessary for these to be independent.
The default setting “Auto” will allow auto detection to ensure optimal
performance.

3.6.3 On-Chip Serial ATA

Choose the status of serial ATA, the default setting is "Auto" which let
system to arrange all parallel and serial ATA resource automatically. The
"Disabled" will disable SATA controller. The "Combined Mode" will
combine PATA and SATA, and max of 2 IDE drives in each channel.
The "Enhanced Mode" will enable both SATA and PATA, and max of 6
IDE drives are supported. The "SATA Only" means SATA is operating in
legacy mode.

3.6.4 Serial ATA Port0/Port1 Mode

Select the mode for SATA port0 and SATA port1. The choices are "Pri­mary Master", "Primary Slave", "Secondary Master", "Secondary Slave",
"SATA0 Master" and "SATA1 Master".

Figure 3.7: Onboard Device

AIMB-744 User’s Manual 38

3.6.5 USB Controller

Select Enabled if your system contains a Universal Serial Bus (USB) con­troller and you have USB peripherals. The choices: "Enabled", "Dis­abled".

3.6.6 USB 2.0 Controller

This entry is for disable/enable USB2.0 controller only. The BIOS itself
may/may not have high speed USB support. If the BIOS has high speed
USB support built in, the support will be automatically turn on when high
speed device were attached. The Choice : "Enabled" and "Disabled".

3.6.7 USB Keyboard/Mouse Support

Select Enabled if user plan to use an USB keyboard. The choice:
"Enabled", "Disabled".

3.6.8 AC97 Audio

Select Disable if you do not want to use AC-97 audio. Option is "Auto",
"Disabled".

3.6.9 Onboard LAN1 Control

Options are "Enabled" and "Disabled" Select Disable if user does not
want to use onboard LAN controller1

3.6.10 Onboard LAN2 Control

Options are "Enabled" and "Disabled" Select Disable if user does not
want to use onboard LAN controller2

3.6.11 Onboard LAN Boot ROM

Decide whether to invoke the boot ROM of the onboard LAN chip. The
Choice : "Disabled", "LAN1".

Figure 3.8: SuperIO Device

39 Chapter 3

3.6.12 Onboard FDC Controller

When enabled, this field allows you to connect your floppy disk drives to
the onboard floppy disk drive connector instead of a separate controller
card. If you want to use a different controller card to connect the floppy
disk drives, set this field to Disabled.

3.6.13 Onboard Serial Port 1

The settings are "3F8/IRQ4", "2F8/IRQ3", "3E8/IRQ4", "2E8/ IRQ3"
and "Disabled" for the on-board serial connector.

3.6.14 Onboard Serial Port 2

The settings are "3F8/IRQ4", "2F8/IRQ3", "3E8/IRQ4", "2E8/ IRQ3"
and "Disabled" for the on-board serial connector.

3.6.15 Onboard Serial Port 3

The setting are "(3F8, 2F8, 3E8, 2E8, Disable)/(IRQ10, IRQ11, IRQ3,
IRQ4, IRQ5, IRQ7)" for the onboard serial connecto.

3.6.16 Onboard Serial Port 4

The setting are "(3F8, 2F8, 3E8, 2E8, Disable)/(IRQ10, IRQ11, IRQ3,
IRQ4, IRQ5, IRQ7)" for the onboard serial connecto.

3.6.17 UART Mode Select

This item allows you to select UART mode. The choices: "IrDA",
"ASKIR", "Normal".

3.6.18 RxD, TxD Active

This item allows you to determine the active of RxD, TxD. The Choices:
“Hi, Hi,” “Lo, Lo,” “Lo, Hi,” “Hi, Lo.”

3.6.19 Onboard Parallel Port

This field sets the address of the on-board parallel port connector. You
can select either "378/IRQ7", "278/IRQ5", "3BC/IRQ7", or "Disabled". If
you install an I/O card with a parallel port, make sure there is no conflict
in the address assignments. The single board computer can support up to
three parallel ports, as long as there are no conflicts for each port.

3.6.20 Parallel Port Mode

This field allows you to set the operation mode of the parallel port. The
setting “Normal” allows normal speed operation, but in one direction
only. “EPP” allows bidirectional parallel port operation at maximum
speed. “ECP” allows the parallel port to operate in bi-directional mode
and at a speed faster than the maximum data transfer rate. “ECP + EPP”
allows normal speed operation in a two-way mode.

3.6.21 EPP Mode Select

AIMB-744 User’s Manual 40

This field allows you to select EPP port type 1.7 or 1.9. The choices:

"EPP1.9", "EPP1.7".

3.6.22 ECP Mode Use DMA

This selection is available only if you select “ECP” or “ECP + EPP” in
the Parallel Port Mode field. In ECP Mode Use DMA, you can select
DMA channel 1, or DMA channel 3. Leave this field on the default set­ting.

3.6.23 PWRON After PWR-Fail

To setup the status of system after power fail. The "Off" will keep system
power off after power fail, the "On" will boot up the system after fail, and
the "Former-Sts" will return to the status before power fail.

3.7 Power Management Setup

The power management setup controls the single board computer's
“green” features to save power. The following screen shows the manufac-

turer’s defaults.

Figure 3.9: Power management setup screen (1)

3.7.1 ACPI function

The choice: "Enabled", "Disabled".

3.7.2 ACPI Suspend Type

41 Chapter 3

The Choice : "S1(POS)", and "S3(STR)". While selecting "S3(STR)", the
"Run VGABIOS if S3 Resume" and "Resume on USB from S3" will be
active for selection.

3.7.3 Power Management

This category allows you to select the type (or degree) of power saving
and is directly related to the following modes:

1. HDD Power Down

2. Suspend Mode

There are three selections for Power Management, and they have fixed
mode settings.

Min Saving Minimum power management., Suspend Mode = 1 hr.,

and HDD Power Down = 15 min.

Max Saving Maximum power management., Suspend Mode = 1 min.,

and HDD Power Down = 1 min.

User Defined
(Default)

Allows you to set each mode individually. When not dis­abled, each of the ranges are from 1 min. to 1 hr. except
for HDD Power Down which ranges from 1 min. to 15 min.
and disable.

3.7.4 Video Off Method

To select the method to off the video. The Choice : "Blank Screen", "V/H
SYNC+ Blank", "DPMS".

3.7.5 Video Off In Suspend

When system is in suspend, video will turn off. The choices are "No" and
"Yes".

3.7.6 Suspend Type

The Choice : "Stop Grant", "PwrOn Suspend".

3.7.7 Modem Use IRQ

This determines the IRQ in which the MODEM can use.The choices: "3",
"4", "5", "7", "9", "10", "11", "NA".

3.7.8 Soft-Off by PWR-BTTN

If you choose “Instant-Off”, then pushing the ATX soft power switch but­ton once will switch the system to “system off” power mode. You can
choose “Delay 4 sec.” If you do, then pushing the button for more than 4
seconds will turn off the system, whereas pushing the button momentarily
(for less than 4 seconds) will switch the system to “suspend” mode.

3.7.9 CPU THRM-Throttling

AIMB-744 User’s Manual 42

This field allows you to select the CPU THRM-Throttling rate. The
choices: "75.0%", "50.0%", and "25.0%".

3.7.10 Resume on LAN/PCI PME#

To enabled or disable the function to resume the system by PCI card or
LAN. The Choice : "Enabled", "Disabled".

3.7.11 Resume on Ring

This item allows you to wake up the system via COM port from the
remote host. The choices: "Enabled", "Disabled".

3.7.12 Resume on Alarm

The Choice : "Enabled", "Disabled".

3.7.13 Primary IDE 0 (1) and Secondary IDE 0 (1)

When Enabled, the system will resume from suspend mode if Primary
IDE 0 (1) or Secondary IDE 0 (1) is active. The choice: "Enabled", "Dis­abled".

3.7.14 FDD, COM, LPT PORT

When Enabled, the system will resume from suspend mode if FDD, COM
port, or LPT port is active. The choice: "Enabled", "Disabled".

3.7.15 PCI PIRQ [A-D]#

When Enabled, the system will resume from suspend mode if interrupt
occurs. The choice: "Enabled", "Disabled".

3.8 PnP/PCI Configurations

Figure 3.10: PnP/PCI configurations screen

43 Chapter 3

3.8.1 Reset Configuration Data

Default is Disable. Select Enable to reset Extended System Configuration
Data (ESCD) if you have installed a new add-on and system configura­tion has caused such a conflict that OS cannot boot.

3.8.2 Resources Controlled By

The commands here are "Auto(ESCD)" or “Manual.” Choosing “manual”
requires you to choose resources from each following sub-menu.
"Auto(ESCD)" automatically configures all of the boot and Plug and Play
devices but you must be using Windows 95 or above.

3.8.3 PCI/VGA Palette Snoop

This is left at “Disabled.”

3.9 PC Health Status

3.9.1 CPU Warning Temperature

This item will prevent the CPU from overheating. The choices are: "Dis­abled", "50C/122F", "53C/127F", "56C/133F", "60C/140F", "63C/145F",

"66C/151F", "70C/158F".

Figure 3.11: PC health status screen

3.9.2 Current System Temp

This shows you the current temperature of system.

3.9.3 Current CPU Temperature

This shows you the current CPU temperature.

AIMB-744 User’s Manual 44

3.9.4 Current CPUFAN Speed

This shows you the current CPUFAN operating speed.

3.9.5 VCORE, +1.5V, VCC3, +5V, +12V, -12V, -5V,

VBAT(V), 5VSB(V)

This shows you the voltage of VCORE, +1.5V, VCC3, +5V, +12V, -12V,

-5V, VBAT(V), and 5VSB(V).

3.10 Spread Spectrum Control

Figure 3.12: Spread Spectrum Control screen

3.10.1 CPU Clock Ratio

Key in a DEC number to setup the CPU Clodk Ratio. (Min=8; Max=50).
This item only shows up under some special situations.

3.10.2 Spread Spectrum

To enable/disable the spread spectrum. The Choice : "Disabled", "-

0.40%", "- 0.50%", "- 0.60%" and "- 1.00%".

3.11 Password Setting

To change the password:

1. Choose the “Set Password” option from the “Initial Setup Screen”

menu and press <Enter>.

The screen will display the following message:

45 Chapter 3

Please Enter Your Password

Press <Enter>.

2. If the CMOS is good or if this option has been used to change the

default password, the user is asked for the password stored in the CMOS.
The screen will display the following message:

Please Confirm Your Password

Enter the current password and press <Enter>.

3. After pressing <Enter> (ROM password) or the current password

(user-defined), you can change the password stored in the CMOS. The
password must be no longer than eight (8) characters.

Remember, to enable the password setting feature, you must first select
either “Setup” or “System” from the “Advanced BIOS Features” menu.

3.12 Save & Exit Setup

If you select this and press <Enter>, the values entered in the setup utili­ties will be recorded in the CMOS memory of the chipset. The micropro­cessor will check this every time you turn your system on and compare
this to what it finds as it checks the system. This record is required for the
system to operate.

3.13 Exit Without Saving

Selecting this option and pressing <Enter> lets you exit the setup program
without recording any new values or changing old ones.

AIMB-744 User’s Manual 46

4

CHAPTER

Chipset Software
Installation Utility

47 Chapter 4

Chapter 4 Chipset Software Install Utility

4.1 Before you begin

To facilitate the installation of the enhanced display device drivers and
utility software, you should read the instructions in this chapter carefully
before you attempt installation. The device drivers for the AIMB-744
board are located on the software installation CD. The auto-run function
of the driver CD will guide and link you to the utilities and device drivers
under a Windows system. The Intel® Chipset Software Installation Util­ity is not required on any systems running Windows NT 4.0. Updates are
provided via Service Packs from Microsoft*.

Note: The files on the software installation CD are

compressed. Do not attempt to install the driv­ers by copying the files manually. You must use
the supplied SETUP program to install the driv­ers.

Before you begin, it is important to note that most display drivers need to
have the relevant software application already installed in the system
prior to installing the enhanced display drivers. In addition, many of the
installation procedures assume that you are familiar with both the rele­vant software applications and operating system commands. Review the
relevant operating system commands and the pertinent sections of your
application software’s user’s manual before performing the installation.

4.2 Introduction

The Intel® Chipset Software Installation (CSI) utility installs to the target
system the Windows INF files that outline to the operating system how
the chipset components will be configured. This is needed for the proper
functioning of the following features:

• Core PCI and ISA PnP services.

• AGP support.

• IDE Ultra ATA 100/66/33 and Serial ATA interface support.

• USB 1.1/2.0 support (USB 2.0 driver needs to be installed separately

for Win98)

AIMB-744 User’s Manual 48

• Identification of Intel ® chipset components in the Device Manager.

• Integrates superior video features. These include filtered sealing of

720 pixel DVD content, and MPEG-2 motion compensation for soft-

ware DVD

Note: This utility is used for the following versions of

Windows system, and it has to be installed
before installing all the other drivers:

Windows 98SE

Windows 2000

Windows Me

Windows XP

4.3 Windows XP Driver Setup

1. Insert the driver CD into your system's CD-ROM drive. In a few
seconds, the software installation main menu appears. Move the
mouse cursor over the "Install" button under the "CSI UTILITY"
heading, a message pops up telling you to install the CSI utility
before other device drivers, as shown in the following figure. Click
on this button. Taking Windows XP as example.

49 Chapter 4

2. Click "Next" when you see the following message.

3. Click "Yes" when you see the following message.

AIMB-744 User’s Manual 50

4. Click "Next" when you see the following message.

5. When the following message appears, click "Finish" to complete
the installation and restart Windows.

51 Chapter 4

AIMB-744 User’s Manual 52

5

CHAPTER

LAN Configuration

53 Chapter 5

Chapter 5 LAN Configuration

5.1 Introduction

The AIMB-744 features the 32-bit 10/100/1000 Mbps Ethernet network
interface. This interface supports bus mastering architecture and auto­negotiation features. Therefore standard twisted-pair cabling with RJ-45
connectors for 10 Mbps, 100 Mbps and 1000 Mbps connections can be
used. Extensive driver support for commonly-used network systems is
also provided.

5.2 Features

• Optional single/dual Intel 82547/82541 10/100/1000 Base-T Ethernet

LAN controller

• Supports Wake-on-LAN remote control function.

• PCI Bus Master complies with PCI Rev. 2.2

• MAC & PHY (10/100/1000 Mbps) interfaces.

• Complies with 1000Base-T, 100Base-TX, and 10Base-T applications.

• Fully supports 1000Base-T, 100Base-TX, and 10Base-T operation.

• Single RJ-45 connector gives auto-detection of 10 Mbps, 100 Mbps, or

1000 Mbps network data transfer rates and connected cable types.

• Plug and Play.

• Enhancements on ACPI & APM.

• Complies with PCI Bus Power Management Interface Rev. 1.1,

• ACPI Rev. 2.0, and Device Class Power Management Rev. 1.0.

AIMB-744 User’s Manual 54

5.3 Installation

Note: Before installing the LAN drivers, make sure the

CSI utility has been installed in your system.
See Chapter 4 for information on installing the
CSI utility.

The AIMB-744's onboard Ethernet interface supports all major network
operating systems. However, the installation procedure varies with differ­ent operating systems. In the following sections, refer to the one that pro­vides driver setup procedure for the operating system you are using.

5.4 Win XP Driver Setup (Intel 82547/41)

1. Insert the driver CD into your system's CD-ROM drive. In a few
seconds, the software installation main menu appears, as shown in
the following figure. Under the "LAN Drivers" heading, click on
the "Install" to complete installation procedure.

55 Chapter 5

2. Select "I accept the terms in the license agreement" and click
"Next" to continue.

3. Click "Next" to continue.

AIMB-744 User’s Manual 56

4. Click "Install Software" to start the installation procedure.

5. The driver will be installed automatically and the LAN function
will be enabled after the installation.

57 Chapter 5

AIMB-744 User’s Manual 58

Onboard Security
Setup

CHAPTER

6

59 Chapter 6

Chapter 6 Onboard Security Setup

6.1 Introduction

The AIMB-744's hardware monitor is designed with Winbond W83782D.
Onboard security (OBS) functions monitor key hardware. They help you
maintain your system's stability and durability. The AIMB-744 can moni­tor 5 sets of system positive voltages, 2 sets of system negative voltages,
CPU cooling fan speed, and CPU temperature. The positive system volt­age sets which can be monitored include:

• CPU core voltage: 1.3 V ~ 3.3 V, according to Intel specifications.

• Transmission voltage from CPU to chipset: typically 1.8 V.

• Chipset voltage: typically 3.3 V.

• Main voltage: +5 V, +12 V.

The negative system voltage sets which can be monitored include:

• Main voltage: -5 V, -12 V.

AIMB-744 User’s Manual 60

6.2 Windows XP Driver Setup

1. Insert the driver CD into your system's CD-ROM drive. In a few
seconds, the software installation main menu appears, as shown in
the following figure. Click on the "Install" button under the "OBS

DRIVERS" heading.

2. Click "Next" when you see the following message.

61 Chapter 6

3. Click "Next" when you see the following message.

4. Click "Next" when you see the following message.

AIMB-744 User’s Manual 62

5. Click "Next" to continue.

6. Click "Finish" when you see the following message.

63 Chapter 6

6.3 Using the OBS Hardware Doctor Utility

After completing the setup, all the OBS functions are permanently
enabled. When a monitored reading exceeds safe limits, a warning mes­sage will be displayed and an error beep tone will activate to attract your
attention.

OBS Hardware Doctor will show an icon on the right side of the bottom
window bar. This icon is the "Terminate and Stay Resident" (TSR) icon.
It will permanently remain in the bottom window bar, and will activate
warning signals when triggered by the onboard security

system.

You can view or change values for various OBS settings by running this
utility:

1. From the desktop of Windows, click on "Start" and select "Pro­grams" , select "Winbond HWDoctor" and click "HWDOCTOR."

2. It is recommended that you load the default values for all the OBS
settings. However, if desired, you can establish new conditions for
voltage, fan speed, and temperature.

AIMB-744 User’s Manual 64

65 Chapter 6

AIMB-744 User’s Manual 66

Programming the
Watchdog Timer

Appendix

A

67 Appendix A

Appendix A Programming the watchdog

timer

A.1 Programming the Watchdog Timer

The AIMB-744's watchdog timer can be used to monitor system software
operation and take corrective action if the software fails to function after
the programmed period. This section describes the operation of the
watchdog timer and how to program it.

A.1.1 Watchdog timer overview

The watchdog timer is built-in the super I/O controller W83627HF. It
provides the following functions for user programming:

• Can be enabled and disabled by user's program.

• Timer can be set from 1 to 255 seconds or 1 to 255 minutes.

• Generates an interrupt or resets signal if the software fails to reset the

timer after time-out.

A.1.2 Reset/ Interrupt selection

The J2 jumper is used to select reset or interrupt (IRQ 11) in the event the
watchdog timer is tripped. See Chapter 1 for detailed jumper settings.

Note: The interrupt output of the watchdog timer is a low level

signal. It will be held low until the watchdog timer is

reset.

A.1.3 Programming the Watchdog Timer

The I/O port address of the watchdog timer is 2E(hex) and 2F(hex).

2E (hex) is the address port. 2F(hex) is the data port.

You must first assign the address of register by writing address value

into address port 2E(hex), then write/read data to/from the assigned

register through data port 2F (hex).

AIMB-744 User’s Manual 68

Unlock W83627H

Select register of

watchdog timer

Enable the function of

the watchdog timer

Use the function of

the watchdog time

r

Lock W83627HF

69 Appendix A

Watchdog Timer Registers

Address of register (2E) Attribute

Read/Write Value (2F) and

description

87 (hex) ----- Write this address to I/O

address port 2E (hex) twice
to unlock theW83627HF

07 (hex) write Write 08 (hex) to select reg-

ister of watchdog timer.

30 (hex) write Write 01 (hex) to enable the

function of the watchdog
timer. Disabled is set as
default.

F5 (hex) write Set seconds or minutes as

units for the timer.

Write 0 to bit 3: set sec­ond as counting unit.
[default]

Write 1 to bit 3: set
minute as counting unit

F6 (hex) write 0: stop timer [default]

01~FF (hex): The amount
of the count, in seconds or
minutes, depends on the
value set in register F5
(hex). This number decides
how long the watchdog
timer waits for strobe
before generating an inter­rupt or reset signal. Writing
a new value to this register
can reset the timer to count
with the new value.

AIMB-744 User’s Manual 70

F7 (hex) read/write Bit 6: Write 1 to enable key-

board to reset the timer, 0
to disable.[default]
Bit 5: Write 1 to generate a
timeout signal immediately
and automatically return to

0. [default=0]
Bit 4: Read status of watch­dog timer, 1 means timer is
""time out""."

AA (hex) ----- Write this address to I/O

port 2E (hex) to lock the
watchdog timer.2

Table A.1: Watchdog timer registers

A.1.4 Example Program

1. Enable watchdog timer and set 10 sec. as timeout interval

;-----------------------------------------------------------

Mov dx,2eh ; Unlock W83627HF

Mov al,87h

Out dx,al

Out dx,al

;-----------------------------------------------------------

Mov al,07h ; Select registers of watchdog timer

Out dx,al

Inc dx

Mov al,08h

Out dx,al

;-----------------------------------------------------------

Dec dx ; Enable the function of watchdog timer

Mov al,30h

Out dx,al

Inc dx

Mov al,01h

Out dx,al

71 Appendix A

;-----------------------------------------------------------

Dec dx ; Set second as counting unit

Mov al,0f5h

Out dx,al

Inc dx

In al,dx

And al,not 08h

Out dx,al

;-----------------------------------------------------------

Dec dx ; Set timeout interval as 10 seconds and start counting

Mov al,0f6h

Out dx,al

Inc dx

Mov al,10

Out dx,al

;-----------------------------------------------------------

Dec dx ; lock W83627HF

Mov al,0aah

Out dx,al

2. Enable watchdog timer and set 5 minutes as timeout interval

;-----------------------------------------------------------

Mov dx,2eh ; unlock W83627H

Mov al,87h

Out dx,al

Out dx,al

;-----------------------------------------------------------

Mov al,07h ; Select registers of watchdog timer

Out dx,al

Inc dx

Mov al,08h

Out dx,al

AIMB-744 User’s Manual 72

;-----------------------------------------------------------

Dec dx ; Enable the function of watchdog timer

Mov al,30h

Out dx,al

Inc dx

Mov al,01h

Out dx,al

;-----------------------------------------------------------

Dec dx ; Set minute as counting unit

Mov al,0f5h

Out dx,al

Inc dx

In al,dx

Or al,08h

Out dx,al

;-----------------------------------------------------------

Dec dx ; Set timeout interval as 5 minutes and start counting

Mov al,0f6h

Out dx,al

Inc dx

Mov al,5

Out dx,al

;-----------------------------------------------------------

Dec dx ; lock W83627HF

Mov al,0aah

Out dx,al

3. Enable watchdog timer to be reset by mouse

;-----------------------------------------------------------

Mov dx,2eh ; unlock W83627H

Mov al,87h

Out dx,al

73 Appendix A

Out dx,al

;-----------------------------------------------------------

Mov al,07h ; Select registers of watchdog timer

Out dx,al

Inc dx

Mov al,08h

Out dx,al

;-----------------------------------------------------------

Dec dx ; Enable the function of watchdog timer

Mov al,30h

Out dx,al

Inc dx

Mov al,01h

Out dx,al

;-----------------------------------------------------------

Dec dx ; Enable watchdog timer to be reset by mouse

Mov al,0f7h

Out dx,al

Inc dx

In al,dx

Or al,80h

Out dx,al

;-----------------------------------------------------------

Dec dx ; lock W83627HF

Mov al,0aah

Out dx,al

4. Enable watchdog timer to be reset by keyboard

;-----------------------------------------------------------

Mov dx,2eh ; unlock W83627H

Mov al,87h

Out dx,al

AIMB-744 User’s Manual 74

Out dx,al

;-----------------------------------------------------------

Mov al,07h ; Select registers of watchdog timer

Out dx,al

Inc dx

Mov al,08h

Out dx,al

;-----------------------------------------------------------

Dec dx ; Enable the function of watchdog timer

Mov al,30h

Out dx,al

Inc dx

Mov al,01h

Out dx,al

;-----------------------------------------------------------

Dec dx ; Enable watchdog timer to be strobed reset by keyboard

Mov al,0f7h

Out dx,al

Inc dx

In al,dx

Or al,40h

Out dx,al

;-----------------------------------------------------------

Dec dx ; lock W83627HF

Mov al,0aah

Out dx,al

5. Generate a time-out signal without timer counting

;-----------------------------------------------------------

Mov dx,2eh ; unlock W83627H

Mov al,87h

Out dx,al

75 Appendix A

Out dx,al

;-----------------------------------------------------------

Mov al,07h ; Select registers of watchdog timer

Out dx,al

Inc dx

Mov al,08h

Out dx,al

;-----------------------------------------------------------

Dec dx ; Enable the function of watchdog timer

Mov al,30h

Out dx,al

Inc dx

Mov al,01h

Out dx,al

;-----------------------------------------------------------

Dec dx ; Generate a time-out signal

Mov al,0f7h

Out dx,al ;Write 1 to bit 5 of F7 register

Inc dx

In al,dx

Or al,20h

Out dx,al

;-----------------------------------------------------------

Dec dx ; lock W83627HF

Mov al,0aah

Out dx,al

AIMB-744 User’s Manual 76

Appendix

B

I/O Pin Assignments

77 Appendix B

Appendix B Pin Assignments

B.1 IDE Hard Drive Connector (CN1, CN2)

Table B.1: IDE hard drive connector (CN1, CN2)
Pin Signal Pin Signal

1 IDE RESET* 2 GND
3DATA 7 4DATA 8
5DATA 6 6DATA 9
7DATA 5 8DATA 10
9 DATA 4 10 DATA 11
11 DATA 3 12 DATA 12
13 DATA 2 14 DATA 13
15 DATA 1 16 DATA 14
17 DATA 0 18 DATA 15
19 SIGNAL GND 20 N/C
21 DISK DMA REQUEST 22 GND
23 IO WRITE 24 GND
25 IO READ 26 GND
27 IO CHANNEL READY 28 CSEL
29 HDACKO* 30 GND
31 IRQ14 32 IDSC16­33 ADDR 1 34 PDIAG
35 ADDR 0 36 ADDR 2
37 HARD DISK SELECT 0* 38 HARD DISK SELECT 1*
39 IDE ACTIVE* 40 GND
* low active

AIMB-744 User’s Manual 78

B.2 Floppy Drive Connector (CN3)

3

33

31

32

Table B.2: Floppy drive connector (CN3)
Pin Signal Pin Signal

1 GND 2 FDHDIN*
3GND4N/C
5 N/C 6 FDEDIN*
7 GND 8 INDEX*
9 GND 10 MOTOR 0*
11 GND 12 DRIVE SELECT 1*
13 GND 14 DRIVE SELECT 0*
15 GND 16 MOTOR 1*
17 GND 18 DIRECTION*
19 GND 20 STEP*
21 GND 22 WRITE DATA*
23 GND 24 WRITE GATE*
25 GND 26 TRACK 0*
27 GND 28 WRITE PROTECT*
29 GND 30 READ DATA*
31 GND 32 HEAD SELECT*
33 GND 34 DISK CHANGE*
* low active

1

2

434

79 Appendix B

B.3 Parallel Port Connector (CN4)

13 2

12 1

25

Table B.3: Parallel port connector (CN4)
Pin Signal Pin Signal

1 STROBE* 14 AUTOFD*
2D015ERR
3D116INIT*
4D217SLCTINI*
5D318GND
6D419GND
7D520GND
8D621GND
9D722GND
10 ACK* 23 GND
11 BUSY 24 GND
12 PE 25 GND
13 SLCT 26 N/C
* low active

1526

14

AIMB-744 User’s Manual 80

B.4 USB Connector (CN6; shared with CN32)

16
2
3
4
5

7
8
9
10

Table B.4: USB1/USB2 connector (CN6; shared with CN32)
Pin USB1 Signal Pin USB2 Signal

1+5 V6 +5 V
2 UV- 7 UV­3 UV+ 8 UV+
4GND9 GND
5 Chassis GND 10 N/CA

B.5 COM1/2/3/4 RS-232 Serial Port Interface (CN9/10/ 23/38)

CN9&38

CN10&23

Table B.5: COM1/2 RS-232 serial port (CN9/38)
Pin Signal

1 DCD
2RXD
3TXD
4DTR
5GND
6DSR
7RTS
8CTS

81 Appendix B

9RI

B.6 Keyboard and Mouse Connnector (CN11)

Table B.6: Keyboard and mouse connector (CN11)
Pin Signal

1 KB DATA
2N/C
3GND
4 KB VCC
5 KB CLK
6 N/C

B.7 COM3/4 serial port connector ( CN10/23)

Table B.7: COM3/4 serial port connector ( CN10/23)
Pin Signal

1DCD
2DSR
3RXD
4RTS
5TXD
6CTS
7DTR

AIMB-744 User’s Manual 82

8RI
9GND

B.8 External Keyboard Connector (CN12)

Table B.8: External keyboard connector (CN12)
Pin Signal

1CLK
2DATA
3NC
4GND
5 VCC

B.9 CPU/System Fan Power Conn (CN14/15/37)

Table B.9: CPU/System Fan Power Conn (CN14/15/37)

Pin Signal
1 GND
2 +12V
3 Detect

83 Appendix B

B.10 Power LED (CN16)

You can use an LED to indicate when the motherboard is on. Pin 1 of
CN16 supplies the LED's power, and Pin 3 is the ground.

Table B.10: Power LED and keylock conn (CN16)
Pin Function

1 LED power (+5 V)
2NC
3GND
4NC
5GND

B.11 External Speaker Connector (CN17)

The motherboard has its own buzzer. You can also connect it to the exter­nal speaker on your computer chassis.

Table B.11: External Speaker Connector (CN17)

Pin Function
1 Buzzer
2NC
3 Buzzer
4 Speaker out

AIMB-744 User’s Manual 84

B.12 Reset Connector (CN18)

1

Table B.12: Reset connector (CN18)
Pin Signal

1 RESET
2GND

B.13 HDD LED Connector (CN19)

1

Table B.13: HDD LED connector (CN19)

Pin Signal
1VCC (LED+)
2 IDE LED (LED-)

85 Appendix B

B.14 ATX Soft Power Switch (CN21)

1

Table B.14: ATX soft power switch (CN21)
Pin Signal

15VSB
2PWR-BTN

AIMB-744 User’s Manual 86