Advantech AIMB-251 Series User`s manual

Mini-ITX

AIMB-251 Series

Intel® ULV Celeron

®

600 MHz Mini ITX Motherboard

User’s Manual

1 st

Ed – January 2007

AIMB-251 Series

FCC Statement

THIS DEVICE COMPLIES WITH PART 15 FCC RULES. OPERATION IS

SUBJECT TO THE FOLLOWING TWO CONDITIONS:

(1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE.

(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 INSTATLLED AND USED IN

ACCORDANCE WITH THE INSTRUCTION MANUAL, MAY CAUSE HARMFUL

INTERFERENCE TO RADIO COMMUNICATIONS.

OPERATION OF THIS EQUIPMENT IN A RESIDENTIAL AREA IS LIKELY TO CAUSE

HARMFUL INTERFERENCE IN WHICH CASE THE USER WILL BE REQUIRED TO

CORRECT THE INTERFERENCE AT HIS OWN EXPENSE.

Notice

This guide is designed for experienced users to setup the system within the shortest time.

For detailed information, please always refer to the electronic user's manual.

Copyright Notice

Copyright © 2006 Advantech Corp., ALL RIGHTS RESERVED.

No part of this document may be reproduced, copied, translated, or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the prior written permission of the original manufacturer.

Trademark Acknowledgement

Brand and product names are trademarks or registered trademarks of their respective owners.

2 AIMB-251 Series User’s Manual

User’s Manual

Disclaimer

Advantech Corp. reserves the right to make changes, without notice, to any product, including circuits and/or software described or contained in this manual in order to improve design and/or performance. Advantech Corp. assumes no responsibility or liability for the use of the described product(s), conveys no license or title under any patent, copyright, or masks work rights to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Applications that are described in this manual are for illustration purposes only. Advantech Corp. makes no representation or warranty that such application will be suitable for the specified use without further testing or modification.

Life Support Policy

ADVANTECH CORP. PRODUCTS ARE NOT FOR USE AS CRITICAL COMPONENTS IN

LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE PRIOR WRITTEN APPROVAL

OF ADVANTECH CORP.

As used herein:

1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into body, or (b) support or sustain life and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.

2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.

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 device 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 customer services.

To ensure you get the full benefit of our services, please follow the instructions below carefully.

AIMB-251 Series User’s Manual 3

AIMB-251 Series

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 the user’s 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. Please do not hesitate to call or e-mail us.

Headquarters

Advantech Corp.

No.1, Alley 20, Lane 26, Rueiguang Road,

Neihu District, Taipei 114,

Taiwan

Tel : +886-2-2792-7818

Fax : +886-2-2794-7306 http://www.Advantech.com.tw


User’s Manual

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. Because of Advantech high quality-control standards and rigorous testing, most of our customers never need to use our repair service. If any of Advantech products 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:

1. Collect all the information about the problem encountered. (For example, CPU type and speed, Advantech products model name, hardware & BIOS revision number, other hardware and software used, etc.) Note anything abnormal and list any on-screen messages you get when the problem occurs.

2. Call your dealer and describe the problem. Please have your manual, product, and any helpful information available.

3. If your product is diagnosed as defective, obtain an RMA (return material authorization) number from your dealer. This allows us to process your good return more quickly.

4. Carefully pack the defective product, a complete 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.

5. Write the RMA number visibly on the outside of the package and ship it prepaid to your dealer.


AIMB-251 Series

Contents

1. Getting Started..........................................................................................................10

1.1

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

1.2

Packing List .............................................................................................................10

1.3

Document Amendment History ...............................................................................11

1.4

Manual Objectives ...................................................................................................12

1.5

System Specifications .............................................................................................13

1.6

Architecture Overview .............................................................................................16

1.6.1

Block Diagram ................................................................................................................................ 16

1.6.2

Intel 852GM and ICH4.................................................................................................................... 17

1.6.3

Intel 852GM and ICH4.................................................................................................................... 19

1.6.4

DRAM Interface (Intel 852GM)....................................................................................................... 20

1.6.5

DRAM Interface (Intel 852GM)....................................................................................................... 20

1.6.6

PCI Interface .................................................................................................................................. 20

1.6.7

IDE Interface (Bus Master Capability and Synchronous DMA Mode ) .......................................... 21

1.6.8

USB 2.0 .......................................................................................................................................... 21

1.6.9

VIA VT1616 Audio Codec .............................................................................................................. 21

1.6.10

Chrontel CH7009A TV/DVI Transmitter..................................................................................... 22

1.6.11

Ethernet...................................................................................................................................... 23

1.6.12

Winbond W83627HF.................................................................................................................. 24

1.6.13

Compact Flash Interface............................................................................................................ 24

2. Hardware Configuration...........................................................................................25

2.1

Product Overview ....................................................................................................26

2.2

Installation Procedure .............................................................................................27

2.2.1

Processor Installation ..................................................................................................................... 27

2.2.2

Main Memory.................................................................................................................................. 28

2.3

Jumper and Connector List .....................................................................................30

2.4

Setting Jumpers & Connectors ...............................................................................33

2.4.1

Clear CMOS (JBAT1)..................................................................................................................... 33

2.4.2

COM1 Pin 9 Signal Select (JP1) .................................................................................................... 33

2.4.3

4/5/8-wire Touch Screen Select (SW1, optional) ........................................................................... 34

2.4.4

COM1 RS-232/422/485 Select (JP2, JP3)..................................................................................... 34

2.4.5

ATX Power Connector (ATXPWR1)............................................................................................... 35

2.4.6

CPU Fan Connector (C_FAN1)...................................................................................................... 36

2.4.7

Parallel Port Connector & VGA Connector (CN1).......................................................................... 37

2.4.8

Serial Port 1 Connector in RS-232 Mode (CN1) ............................................................................ 38

2.4.9

Serial Port 1 Connector in RS-422 Mode (CN1) ............................................................................ 39


User’s Manual

2.4.10

Serial Port 1 Connector in RS-485 Mode (CN1)........................................................................ 40

2.4.11

Audio Connector (CN2).............................................................................................................. 41

2.4.12

RJ-45 Ethernet / USB 0 & 1, 4 & 5 Connectors (CN3, CN4) ..................................................... 41

2.4.13

4/5/8-Wire Touch Screen Connector (CN5, optional)................................................................ 41

2.4.14

Floppy Connector (FLP1)........................................................................................................... 42

2.4.15

Primary IDE Connector (IDE_1)................................................................................................. 44

2.4.16

Secondary IDE Connector (IDE_2)............................................................................................ 45

2.4.17

LCD Inverter Connector (JBKL1)............................................................................................... 47

2.4.18

CD-ROM Audio Input Connector (JCD1)................................................................................... 48

2.4.19

Serial Port 2 Connector (JCOM1).............................................................................................. 48

2.4.20

Serial Port 3/4 Connector (JCOM2, JCOM3)............................................................................. 49

2.4.21

Digital Input / Output Connector (JDIO1)................................................................................... 50

2.4.22

Front Panel Connector (JFP1)................................................................................................... 51

2.4.23

IrDA Connector (JIR1) ............................................................................................................... 52

2.4.24

LVDS Connector (JLVDS1) ....................................................................................................... 53

2.4.25

Miscellaneous Setting Connector (JMISC1).............................................................................. 54

2.4.26

TMDS DVI Connector (JTMDS1)............................................................................................... 55

2.4.27

TV Out Connector (JTV1) .......................................................................................................... 56

2.4.28

USB Connector 2 & 3 (JUSB1).................................................................................................. 57

2.4.29

USB Connector 4 & 5 (JUSB2).................................................................................................. 57

2.4.30

PS/2 Keyboard & Mouse Connector (KB_MS1) ........................................................................ 58

2.4.31

System Fan Connector 1 & 2 (S_FAN1, S_FAN2).................................................................... 58

3 BIOS Setup ................................................................................................................59

3.1

Starting Setup .........................................................................................................60

3.2

Using Setup ............................................................................................................61

3.3

Getting Help ............................................................................................................62

3.4

In Case of Problems ................................................................................................62

3.5

Main Menu ..............................................................................................................63

3.5.1

Standard CMOS Features.............................................................................................................. 64

3.5.2

Advanced BIOS Features .............................................................................................................. 66

3.5.3

Advanced Chipset Features........................................................................................................... 69

3.5.4

Integrated Peripherals.................................................................................................................... 72

3.5.5

Power Management Setup............................................................................................................. 76

3.5.6

PnP / PCI Configuration ................................................................................................................. 78

3.5.7

PC Health Status............................................................................................................................ 79

3.5.8

Frequency / Voltage Control .......................................................................................................... 80

3.5.9

Load Fail-Safe Defaults.................................................................................................................. 81

3.5.10

Load Optimized Defaults............................................................................................................ 81

3.5.11

Set Supervisor / User Password................................................................................................ 82

3.5.12

Save & Exit Setup ...................................................................................................................... 83


AIMB-251 Series

3.5.13

Exit Without Save....................................................................................................................... 84

4 Drivers Installation ...................................................................................................85

4.1

Install Driver ............................................................................................................86

5 Mechanical Drawing .................................................................................................87

Appendix A: AWARD BIOS POST Messages ................................................................89

Overview ............................................................................................................................90

Post Beep ..........................................................................................................................90

Error Messages .................................................................................................................90

1.

CMOS BATTERY HAS FAILED ......................................................................................................... 90

2.

CMOS CHECKSUM ERROR ............................................................................................................. 90

3.

DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER ............................................ 90

4.

DISKETTE DRIVES OR TYPES MISMATCH ERROR - RUN SETUP.............................................. 90

5.

DISPLAY SWITCH IS SET INCORRECTLY...................................................................................... 91

6.

DISPLAY TYPE HAS CHANGED SINCE LAST BOOT ..................................................................... 91

7.

EISA Configuration Checksum Error PLEASE RUN EISA CONFIGURATION UTILITY................... 91

8.

EISA Configuration Is Not Complete PLEASE RUN EISA CONFIGURATION UTILITY ................... 91

9.

ERROR ENCOUNTERED INITIALIZING HARD DRIVE.................................................................... 91

10.

ERROR INITIALIZING HARD DISK CONTROLLER ..................................................................... 91

11.

FLOPPY DISK CNTRLR ERROR OR NO CNTRLR PRESENT ................................................... 91

12.

Invalid EISA Configuration PLEASE RUN EISA CONFIGURATION UTILITY .............................. 92

13.

KEYBOARD ERROR OR NO KEYBOARD PRESENT ................................................................. 92

14.

Memory Address Error at ... ........................................................................................................... 92

15.

Memory parity Error at ................................................................................................................... 92

16.

MEMORY SIZE HAS CHANGED SINCE LAST BOOT ................................................................. 92

17.

Memory Verify Error at ... ............................................................................................................... 92

18.

OFFENDING ADDRESS NOT FOUND ......................................................................................... 92

19.

OFFENDING SEGMENT: .............................................................................................................. 92

20.

PRESS A KEY TO REBOOT ......................................................................................................... 93

21.

PRESS F1 TO DISABLE NMI, F2 TO REBOOT ........................................................................... 93

22.

RAM PARITY ERROR - CHECKING FOR SEGMENT ... ............................................................. 93

23.

Should Be Empty But EISA Board Found PLEASE RUN EISA CONFIGURATION UTILITY....... 93

24.

Should Have EISA Board But Not Found PLEASE RUN EISA CONFIGURATION UTILITY ....... 93

25.

Slot Not Empty ............................................................................................................................... 93

26.

SYSTEM HALTED, (CTRL-ALT-DEL) TO REBOOT ... ................................................................. 93

27.

Wrong Board In Slot PLEASE RUN EISA CONFIGURATION UTILITY........................................ 94

28.

FLOPPY DISK(S) fail (80) → Unable to reset floppy subsystem................................................... 94

29.

FLOPPY DISK(S) fail (40) → Floppy Type dismatch..................................................................... 94

30.

Hard Disk(s) fail (80) → HDD reset failed.................................................................................... 94

31.

Hard Disk(s) fail (40) → HDD controller diagnostics failed.......................................................... 94

32.

Hard Disk(s) fail (20) → HDD initialization error.......................................................................... 94


User’s Manual

33.

Hard Disk(s) fail (10) → Unable to recalibrate fixed disk............................................................. 94

34.

Hard Disk(s) fail (08) → Sector Verify failed................................................................................ 94

35.

Keyboard is locked out - Unlock the key. ....................................................................................... 94

36.

Keyboard error or no keyboard present. ........................................................................................ 94

37.

Manufacturing POST loop.............................................................................................................. 94

38.

BIOS ROM checksum error - System halted. ................................................................................ 94

39.

Memory test fail. ............................................................................................................................. 94

40.

POST Codes .................................................................................................................................. 95


AIMB-251 Series

1. Getting Started

1.1 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 CPU card. 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 in a static-dissipative surface or static-shielded bag when they are not in the chassis.

1.2 Packing List

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

1 x AIMB-251 Intel ULV Celeron 600 MHz Mini ITX Main Board z

1 x CD-ROM or DVD-ROM contains the followings:

User’s Manual (this manual in PDF file)

Intel INF driver

Ethernet driver and utilities

VGA drivers and utilities

Audio drivers and utilities z z z z z z z z

1 x IDE HDD cable (40-pin, pitch 2.54mm)

1 x IDE HDD cable (44-pin, pitch 2.0mm)

1 x FDD cable (34-pin, pitch 2.54mm)

3 x Serial port cable with DB9P(M) (10-pin, pitch 2.54mm)

1 x I/O bracket

1 x Celeron® M CPU cooler

1 x Startup Manual

1 x Warranty Card


1.3 Document Amendment History

\

Revision Date

1 st Jan. 2007 Initial release

Comment

User’s Manual


AIMB-251 Series

1.4 Manual Objectives

This manual describes in detail the Advantech Technology AIMB-251 series Single Board.

We have tried to include as much information as possible but we have not duplicated information that is provided in the standard IBM Technical References, unless it proved to be necessary to aid in the understanding of this board.

We strongly recommend that you study this manual carefully before attempting to interface with AIMB-251 series or change the standard configurations. Whilst all the necessary information is available in this manual we would recommend that unless you are confident, you contact your supplier for guidance.

Please be aware that it is possible to create configurations within the CMOS RAM that make booting impossible. If this should happen, clear the CMOS settings, (see the description of the Jumper Settings for details).

If you have any suggestions or find any errors concerning this manual and want to inform us of these, please contact our Customer Service department with the relevant details.


User’s Manual

1.5 System Specifications

System

Model

CPU

AIMB-251F-00A1E

Intel® ULV Celeron 600 MHz 512K L2 cache

FSB

BIOS

System Chipset

I/O Chip

System Memory

SSD

Watchdog Timer

H/W Status Monitor

Expansion

I/O

400 MHz

Award 512 KB Flash BIOS

Intel ® 852GM GMCH/ICH4

Winbond W83627HF-AW

One 184-pin DIMM socket supports up to 1 GB DDR 266/333 SDRAM

One CompactFlash Type I/II socket

Reset: 1 sec.~255 min. and 1 sec. or 1 min./step

Monitoring system temperature, voltage, and cooling fan status. Auto throttling control when CPU overheats.

One PCI slot (PCI Rev. 2.2 compliant), one Mini PCI slot

MIO

IrDA

USB

DIO

4 x EIDE (Ultra DMA 100), 2 x FDD , 1 x LPT, 1 x RS-232, 1x RS-232/422/485, 1x

K/B, 1 x Mouse

115k bps, IrDA 1.0 compliant

6 USB 2.0 ports

16-bit General Purpose I/O for DI and DO


AIMB-251 Series

Display

Model

Chipset

Display Memory

Resolution

LVDS

DVI

TV-Out

Dual Display

AIMB-251F-00A1E

Intel ® 852GM GMCH integrated Extreme Graphics 2 controller

Intel ® DVMT 2.1 supports up to 64 MB video memory

CRT mode: 1600 x 1200 @ 32 bpp (85 Hz)

LCD/Simultaneous mode: 1600 x 1200 @ 32 bpp (85 Hz)

CRT + LVDS, or DVI/TV-out + LVDS or CRT + DVI

Dual-channel 18/24-bit LVDS

Chrontel CH7009A DVI transmitter up to 135M pixels/second

Chrontel CH7009A TV encoder supports both NTSC/PAL

Supports both S-Video and composite video

Built-in Touch Screen (Optional)

Chipset

PenMount DMC9000

Touch Screen Interface

With 9-pin 2 mm box header (can be selected with 4/5/8-wire connector)

Audio

Chipset

AC97 Codec

Audio Interface

Intel® ICH4

VIA VT1616 supports 5.1 CH Audio

Mic in, Line in, CD Audio in, Line out

Ethernet

LAN1

LAN2

Ethernet Interface

Realtek RTL8110S Gigabit LAN

N/A

1000Base-T Gigabit Ethernet compatible: Realtek RTL8110S


User’s Manual

Mechanical & Environmental

Model

Weight

AIMB-251F-00A1E

+5 V @ 4.45 A, +12 V @ 0.05 A, +3.3 V @ 5.27 A, 5 Vsb @ 0.38 A

Power Requirement

(with Intel Celeron 600 MHz, 1 GB SDRAM)

Power Type

Operating Humidity

AT/ATX

Operation Temperature

0~60 o C (32~140 o F)

0%~90% relative humidity, non-condensing

Size ( L x W )

6.69" x 6.69" (170 mm x 170 mm)

0.88 lbs (0.4 Kg)


AIMB-251 Series

1.6 Architecture Overview

1.6.1 Block Diagram

The following block diagram shows the architecture and main components of AIMB-251.

The following sections provide detail information about the functions provided onboard.


User’s Manual

1.6.2 Intel 852GM and ICH4

The Intel 852GM GMCH components provide the processor interface, DDR SDRAM interface, display interface, and Hub interface. The Intel 852GM also has an option for AGP external graphics port, in addition to integrated graphics support for added board flexibility options.

The Intel 852GM GMCH is in a 732 pin Micro-FCBGA package and contains the following functionality listed below:

• AGTL+ host bus supporting 32-bit host addressing with Enhanced Intel SpeedStep

•

•

• technology support

Supports a single channel of DDR SDRAM memory

System memory supports DDR200/266 MHz (SSTL_2) DDR SDRAM

Integrated graphics capabilities: Display Core frequency at 133 MHz or 200 MHz

•

•

Render Core frequency at 100 MHz ,133 MHz, and 200 MHz

Provides supports four display ports: one progressive scan analog monitor, dual channel LVDS interface and two DVO port.

The Intel 852GM GMCH is in a 732 pin Micro-FCBGA package and contains all features listed above and the additional functionality list below:

• Display Core frequency at 133 MHz, 200 MHz, or 250 MHz

•

•

Render Core frequency at 100 MHz ,133 MHz, 166 MHz, 200 MHz, or 250 MHz

System memory supports 200/266/333- MHz (SSTL_2) DDR SDRAM.

• Enhanced Power Management Graphics features

The GMCH IGD provides a highly integrated graphics accelerator delivering high performance 2D, 3D, and video capabilities. With its interfaces to UMA using a DVMT configuration, an analog display, a LVDS port, and two digital display ports (e.g. flat panel), the GMCH can provide a complete graphics solution.

The GMCH also provides 2D hardware acceleration for block transfers of data (BLTs). The

BLT engine provides the ability to copy a source block of data to a destination and perform raster operations (e.g., ROP1, ROP2, and ROP3) on the data using a pattern, and/or another destination. Performing these common tasks in hardware reduces CPU load, and thus improves performance. High bandwidth access to data is provided through the system memory interface. The GMCH uses Tiling architecture to increase system memory efficiency and thus maximize effective rendering bandwidth. The Intel 852GM GMCH improves 3D performance and quality with 3D Zone rendering technology. The Intel 852GM

GMCH also supports Video Mixer rendering and Bi-Cubic filtering.


AIMB-251 Series

The Intel 852GM GMCH has four display ports, one analog and three digital. With these interfaces, the GMCH can provide support for a progressive scan analog monitor, a dedicated dual channel LVDS LCD panel, and two DVO devices. Each port can transmit data according to one or more protocols. The data that is sent out the display port is selected from one of the two possible sources, Pipe A or Pipe B.

The Intel 852GM GMCH have an integrated dual channel LFP Transmitter interface to support LVDS LCD panel resolutions up to UXGA The display pipe provides panel up-scaling to fit a smaller source image onto a specific native panel size, as well as provides panning and centering support. The LVDS port is only supported on Pipe B. The

LVDS port can only be driven by Pipe B, either independently or simultaneously with the

Analog Display port. Spread Spectrum Clocking is supported: center and down spread support of 0.5%, 1%, and 2.5% utilizing an external SSC clock.

The DVO B/C interface is compliant with the DVI Specification 1.0. When combined with a

DVI compliant external device (e.g. TMDS Flat Panel Transmitter, TV-out encoder, etc.), the GMCH provides a high-speed interface to a digital or analog display (e.g. flat panel, TV monitor, etc.). The DVO ports are connected to an external display device. Examples of this are TV-out encoders, external DACs, LVDS transmitters, and TMDS transmitters. Each display port has control signals that may be used to control, configure and/or determine the capabilities of an external device. The GMCH provides two DVO ports that are each capable of driving a 165-MHz pixel clock at the DVO B or DVO C interface. When DVO B and DVO C are combined into a single DVO port, then an effective pixel rate of 330 MHz can be achieved. The DVO B/C ports can be driven by Pipe A or Pipe

B. If driven on Pipe B, then the LVDS port must be disabled.

The ICH4 is a highly integrated multifunctional I/O Controller Hub that provides the interface to the PCI Bus and integrates many of functions needed in today’s PC platform.

The GMCH and ICH4 communicate over a dedicated hub interface. The ICH4 functions and capabilities include:

• PCI Rev. 2.2 compliant with support for 33MHz PCI operations

•

•

Supports up to 6 Request/Grant pairs (PCI slots)

Power management logic support

•

•

•

Enhanced DMA controller, interrupt controller, and timer functions

Integrated IDE controller; Ultra ATA/100/66/33

USB host interface; 3 host controllers and supports 6 USB ports; includes a EHCI high-speed 2.0 USB controller


User’s Manual

•

•

•

•

•

•

Integrated LAN controller

System Management Bus (SMBus) compatible with most IC devices; ICH4 has both bus master and slave capability

AC ’97 2.3 compliant link for audio and telephony codecs; up to 6 channels

Low Pin Count (LPC) interface

FWH Interface (FWH Flash BIOS support)

Alert on LAN* (AOL and AOL2)

1.6.3 Intel 852GM and ICH4

The Intel 852GM GMCH component provides the processor interface, DDR SDRAM interface, display interface, and Hub Interface in an Intel 852GM chipset platform. The Intel

852GM GMCH is optimized for the Mobile Intel Pentium 4 Processor-M, Mobile Intel

Celeron processor and Intel Celeron M processor. It supports a single channel of DDR

SDRAM memory. Intel 852GM Chipset contains advanced power management logic. The

Intel 852GM Chipset platform supports the fourth generation mobile I/O Controller Hub to provide the features required by a mobile platform.

The Intel 852GM GMCH is in a 732-pin Micro-FCBGA package and contains the following functionality:

•

•

Supports single Intel processor configurations at 400-MHz or 3 GB/s

1.2-1.30-V AGTL+ host bus supporting 32-bit host bus addressing with Enhanced

•

Intel SpeedStep® technology (Intel Celeron M processor and Intel Celeron

Processor do not support Enhanced Intel SpeedStep Technology).

System Memory supports 200/266-MHz (SSTL_2) DDR DRAM Up to 1 GB (with

256-Mb technology and two SO-DIMMs) of PC1600/2100 DDR SDRAM without

•

•

•

•

•

•

•

ECC

Integrated graphics capabilities, including 3D rendering acceleration and 2D hardware acceleration

Integrated 350-MHz, 24-bit RAMDAC with pixel resolution up to 1600x1200 at 85-Hz and up to 1920x1440 @ 60 Hz

One Dedicated Dual Channel LFP LVDS interface with frequency range of 25 MHz to 112 MHz (single channel/dual channel) for support up to SXGA+ (1400x1050 @

60 Hz) panel resolutions with maximum pixel depth of 18-bpp

Integrated PWM (Pulse Width Modulation) interface for LFP backlight inverter control for panel brightness

One 165-MHz, 12-bit, DVO interface for TV-out encoder and DVI (LVDS transmitter and TMDS transmitter) support I 2 C and DDC channels supported

Dual Pipe Independent Display with Tri-view support through LFP, DVO, and CRT

Deeper Sleep state support


AIMB-251 Series

•

•

Distributed arbitration for highly concurrent operation

Three USB host controllers provide high performance peripherals with 480 Mbps of

• bandwidth, while enabling support for up to six USB 2.0 ports. This results in a significant increase over previous integrated 1-4 port hubs at 12 Mbps

The latest AC ’97 implementation delivers 20-bit audio for enhanced sound quality and full surround sound capability. Integrated audio solutions continue to enjoy

•

•

•

• success as a very cost-effective, yet high-performance solution

LAN Connect Interface (LCI) provides flexible network solutions such as 10/100

Mbps Ethernet and 10/100 Mbps Ethernet with LAN manageability

Dual Ultra ATA/100 controllers, coupled with the Intel® Application Accelerator – a performance software package – support faster IDE transfers to storage devices

Intel Application Accelerator software provides additional performance over native

ATA drivers by improving I/O transfer rates and enabling faster O/S load time, resulting in accelerated boot times

Communication and Network Riser (CNR) offers flexibility in system configuration with a baseline feature set that can be upgraded with an audio card, modem card, or network card

1.6.4 DRAM Interface (Intel 852GM)

The 852GM GMCH system memory controller directly supports the following:

• One channel of PC1600/2100/2700 DDR SDRAM memory

• DDR SDRAM devices with densities of 128-Mb, 256-Mb, and 512-Mb technology

• Up to 1 GB (512-Mb technology) SDRAM

1.6.5 DRAM Interface (Intel 852GM)

The 852GM GMCH system memory controller directly supports the following:

• One channel of PC1600/2100 DDR SDRAM memory

• DDR SDRAM devices with densities of 128-Mb, 256-Mb, and 512-Mb technology

• Variable page sizes of 2-kB, 4-kB, 8-kB, and 16-kB. Page size is individually selected for every row and a maximum of 16 pages may be opened simultaneously

The ICH4 PCI interface provides a 33 MHz, Rev. 2.2 compliant implementation. All PCI signals are 5V tolerant, except PME#. The ICH2 integrates a PCI arbiter that supports up to six external PCI bus masters in addition to the internal ICH4 requests.


User’s Manual

1.6.7 IDE Interface (Bus Master Capability and Synchronous DMA Mode )

The fast IDE interface supports up to four IDE devices providing an interface for IDE hard disks and ATAPI devices. Each IDE device can have independent timings. The IDE interface supports PIO IDE transfers up to 16 Mbytes/sec and Ultra ATA transfers up 100

Mbytes/sec. It does not consume any ISA DMA resources. The IDE interface integrates

16x32-bit buffers for optimal transfers.

The ICH4’s IDE system contains two independent IDE signal channels. They can be electrically isolated independently. They can be configured to the standard primary and secondary channels (four devices). There are integrated series resistors on the data and control lines.

Access to these controllers is provided by two standard IDC 40-pin connectors.

The ICH4 contains an Enhanced Host Controller Interface (EHCI) compliant host controller that supports USB high-speed signaling. High-speed USB 2.0 allows data transfers up to

480Mb/s which is 40 times faster than full-speed USB. The ICH4 also contains three

Universal Host Controller Interface (UHCI) controllers that support USB full-speed and low-speed signaling.

The ICH4 supports 6 USB 2.0 ports. All six USB ports are high-speed, full-speed, and low-speed capable. ICH4’s port-routing logic determines whether a USB port is controlled by one of the UHCI controllers or by the EHCI controller.

1.6.9 VIA VT1616 Audio Codec

VIA Technologies’ VT1616TM 18-bit audio codec conforms to the AC’97 2.2 specifications.

The VT1616 integrates Sample Rate Converters on all channels and can be adjusted in

1Hz increments. There is a provision in hardware for down-mixing the 6 channels into stereo when only two end points are available. The analog mixer circuitry integrates a stereo enhancement to provide a pleasing 3D surround sound effect for stereo media. This codec is designed with aggressive power management to achieve low power consumption.

When used with a 3.3V analog supply, power consumption is further reduced. The primary applications for this part are desktop and portable personal computers multimedia subsystems.


AIMB-251 Series

The Chrontel CH7009A is a display controller device which accepts a digital graphics input signal, and encodes and transmits data through a DVI (DFP can also be supported) or TV output (analog composite, s-video or RGB). The device accepts data over one 12-bit wide variable voltage data port which supports five different data formats including RGB and

YCrCb.

The DVI processor includes a low jitter PLL for generation of the high frequency serialized clock, and all circuitries are required to encode, serialize and transmit data. The CH7009 comes in versions able to drive a DVI display at a pixel rate of up to 165MHz, supporting

UXGA resolution displays. No scaling of input data is performed on the data output to the

DVI device.

The TV-Out processor performs non-interlace to interlace conversion with scaling and flicker filters, and encode the data into any of the NTSC or PAL video standards. The scaling and flicker filter is adaptive and programmable to enable superior text display.

Eight graphics resolutions are supported up to 1024 by 768 with full vertical and horizontal underscan capability in all modes. A high accuracy low jitter phase locked loop is integrated to create outstanding video quality. Support is provided for Macrovision TM and

RGB bypass mode which enables driving a VGA CRT with the input data.


User’s Manual

1.6.11 Ethernet

1.6.11.1 Realtek RTL8110S Gigabit Ethernet Controller

The Realtek RTL8110SB(L) LOM Gigabit Ethernet controllers (RTL8110SB (128 QFP) &

RTL8110SBL (128 LQFP)) combine a triple-speed IEEE 802.3 compliant Media Access

Controller (MAC) with a triple-speed Ethernet transceiver, 32-bit PCI bus controller, and embedded memory. With state-of-the-art DSP technology and mixed-mode signal technology, they offer high-speed transmission over CAT 5 UTP cable or CAT 3 UTP

(10Mbps only) cable. Functions such as Crossover Detection & Auto-Correction, polarity correction, adaptive equalization, cross-talk cancellation, echo cancellation, timing recovery, and error correction are implemented to provide robust transmission and reception capability at high speeds.

The devices support the PCI v2.3 bus interface for host communications with power management and are compliant with the IEEE 802.3 specification for 10/100Mbps Ethernet and the IEEE 802.3ab specification for 1000Mbps Ethernet. They also support an auxiliary power auto-detect function, and will auto-configure related bits of the PCI power management registers in PCI configuration space.

They support the Advanced Configuration Power management Interface (ACPI)--power management for modern operating systems that are capable of Operating System-directed

Power Management (OSPM)--to achieve the most efficient power management possible.

PCI Message Signaled Interrupt (MSI) is also supported.

In addition to the ACPI feature, the RTL8110SB(L) support remote wake-up (including AMD

Magic Packet, Re-LinkOk, and Microsoft® Wake-up frame) in both ACPI and APM

(Advanced Power Management) environments. The LWAKE pin provides four different output signals including active high, active low, positive pulse, and negative pulse. The versatility of the LWAKE pin provides motherboards with Wake-On-LAN (WOL) functionality. To support WOL from a deep power down state (e.g. D3cold, i.e. main power is off and only auxiliary exists), the auxiliary power source must be able to provide the needed power for the RTL8110SB(L).

The RTL8110SB(L) is fully compliant with Microsoft® NDIS5 (IP, TCP, UDP) Checksum and Segmentation Task-offload features, and supports IEEE 802 IP Layer 2 priority encoding and 802.1Q Virtual bridged Local Area Network (VLAN). The above features contribute to lowering CPU utilization, especially benefiting performance when in operation on a network server. Also, the devices boost their PCI performance by supporting PCI

Memory Read Line & Memory Read Multiple when transmitting, and Memory Write and

Invalidate when receiving. To better qualify for server use, the RTL8110SB(L) support the

PCI Dual Address Cycle (DAC) command when the assigned buffers reside at a physical memory address higher than 4 Gigabytes.


AIMB-251 Series

The Winbond W83627F/HF is made to fully comply with Microsoft PC98 and PC99

Hardware Design Guide. Moreover, W83627F/HF is made to meet the specification of

PC98/PC99’s requirement in the power management: ACPI and DPM (Device Power

Management). Super I/O chip provides features as the following:

• Meet LPC Spec. 1.0

• Support LDRQ# (LPC DMA), SERIRQ (serial IRQ)

• Include all features of Winbond I/O W83977TF and W83977EF

• Integrate Hardware Monitor functions

• Compliant with Microsoft PC98/PC99 Hardware Design Guide.

• Support DPM (Device Power Management), ACPI

• Programmable configuration settings

• Single 24 or 48 MHz clock input

1.6.13 Compact Flash Interface

A Compact Flash type II connector is connected to the secondary IDE controller. The

Compact Flash storage card is IDE compatible. It is an ideal replacement for standard IDE hard drives. The solid-state design offers no seek errors even under extreme shock and vibration conditions. The Compact Flash storage card is extremely small and highly suitable for rugged environments, thus providing an excellent solution for mobile applications with space limitations. It is fully compatible with all consumer applications designed for data storage PC card, PDA, and Smart Cellular Phones, allowing simple use for the end user.

The Compact Flash storage card is O/S independent, thus offering an optimal solution for embedded systems operating in non-standard computing environments. The Compact

Flash storage card is IDE compatible and offers various capacities.


2. Hardware

Configuration

User’s Manual


AIMB-251 Series

2.1 Product Overview


User’s Manual

2.2 Installation Procedure

This chapter explains you the instructions of how to setup your system.

1. Turn off the power supply.

2. Insert the DIMM module (be careful with the orientation).

3. Insert all external cables for hard disk, floppy, keyboard, mouse, USB etc. except for flat panel. A CRT monitor must be connected in order to change CMOS settings to support flat panel.

4. Connect power supply to the board via the ATXPWR.

5. Turn on the power.

6. Enter the BIOS setup by pressing the delete key during boot up. Use the “LOAD BIOS

DEFAULTS” feature. The Integrated Peripheral Setup and the Standard CMOS Setup

Window must be entered and configured correctly to match the particular system configuration.

7. If TFT panel display is to be utilized, make sure the panel voltage is correctly set before connecting the display cable and turning on the power.

• Intel ULV Celeron 600 MHz and the heatsink are already installed at the factory side.

The user does not need to worry about installation for CPU and heatsink

• The user is not allowed to remove processor. It requires special fixture to do so.

•


AIMB-251 Series

AIMB-251 provides one 184-pin DIMM socket to support DDR SDRAM. The total maximum memory size is 1GB.

DIMM1

Make sure to unplug the power supply before adding or removing DIMMs or other system components. Failure to do so may cause severe damage to both the board and the components.


User’s Manual

• Locate the DIMM slot on the board.

• Hold two edges of the DIMM module carefully. Keep away of touching its connectors.

• Align the notch key on the module with the rib on the slot.

• Firmly press the modules into the slot automatically snaps into the mounting notch. Do not force the DIMM module in with extra force as the DIMM module only fit in one direction.

• To remove the DIMM modules, push the two ejector tabs on the slot outward simultaneously, and then pull out the DIMM module.

Note: (1) Please do not change any DDR SDRAM parameter in BIOS setup to increase your system’s performance without acquiring technical information in advance.

(2) Static electricity can damage the electronic components of the computer or optional boards. Before starting these procedures, ensure that you are discharged of static electricity by touching a grounded metal object briefly.


AIMB-251 Series

2.3 Jumper and Connector List

You can configure your board to match the needs of your application by setting jumpers. A jumper is the simplest kind of electric switch.

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” a jumper you connect the pins with the clip.

To “open” a jumper you remove the clip. Sometimes a jumper will have three pins, labeled 1,

2, and 3. In this case, you would connect either two pins.

The jumper settings are schematically depicted in this manual as follows:

A pair of needle-nose pliers may be helpful when working with jumpers.

Connectors on the board are linked to external devices such as hard disk drives, a keyboard, or floppy drives. In addition, the board has a number of jumpers that allow you to configure your system to suit your application.

If you have any doubts about the best hardware configuration for your application, contact your local distributor or sales representative before you make any changes.

The following tables list the function of each of the board's jumpers and connectors.

Jumpers

Label

JBAT1

JP1

JP2, JP3

SW1

SW2

Function

Clear CMOS

Note

3 x 1 header, pitch 2.54mm

COM1 pin 9 signal select

COM1 RS-232/422/485 select




4/5/8-wire touch screen select (optional) Switch

Reserved Switch


User’s Manual

Connectors

Label Function

ATXPWR1 ATX Power connector

C_FAN1

CF1

CN1

CN2

CN4

CN5

DIMM1

FLP1

IDE_1

IDE_2

JBKL1

JCD1

JCOM1

JCOM2

JCOM3

JDIO1

JFP1

JIR1

JLVDS1

JMISC1

JTMDS1

JTV1

JUSB1

JUSB2

Note

ATX power connector

CPU fan connector

CF card connector

Parallel port connector

Serial port 1 connector

VGA connector

Primary IDE connector

Secondary IDE connector

LCD inverter connector

CD-ROM audio input connector

3 x 1 wafer, pitch 2.54mm

D-sub 25-pin, female

D-sub 9-pin, male

D-sub 15-pin, female

Audio connector

RJ-45 Ethernet / USB 0 & 1 connector

Phone Jack X 3

4/5/8-wire touch screen connector (option) 9 x 1 wafer, pitch 2.0mm

184-pin DDR SDRAM DIMM socket

Floppy connector 17 x 2 header, pitch 2.54mm







Digital input/output connector

Front panel connector

IrDA connector








LVDS connector

Miscellaneous setting connector

TMDS connector

TV out connector

USB connector 2 & 3

USB connector 4 & 5

HIROSE DF13-40DP-1.25V


HIROSE DF13-20DP-1.25V





AIMB-251 Series

Connectors

Label Function

KB_MS1 PS/2 Keyboard & mouse connector

MPCI1 Mini PCI slot

PCI1 PCI slot

S_FAN1,S_FAN2 System fan connector 1 & 2

Note

6-pin Mini-DIN x 2



User’s Manual

2.4 Setting Jumpers & Connectors

2.4.1 Clear CMOS (JBAT1)

Protect*

Clear CMOS z

* Default

2.4.2 COM1 Pin 9 Signal Select (JP1)

+5V

Ring*

+12V

* Default


AIMB-251 Series

Wire

* 4, 8

BIT1

OFF

BIT2

ON

* Default

* Default


(JP2)

RS-232*

(JP3)

RS-232*

RS-422 RS-422

RS-485 RS-485

User’s Manual

2.4.5 ATX Power Connector (ATXPWR1)

Signal

+12V

PIN PIN Signal

10 20 +5V

VCCSB 9 19 +5V

PWROK 8 18 -5V

+5V 6 16 GND

+5V

+3.3V

4 14 PS_ON

2 12 -12V


AIMB-251 Series

2.4.6 CPU Fan Connector (C_FAN1)

Signal PIN

TAC 3

+12V 2

GND 1

2.4.6.1 Signal Description – CPU Fan Connector (C_FAN1)

Signal Signal Description

TAC Fan speed monitor


Signal

HSYNC

VSYNC

DCK

DAT

RED

GREEN

BLUE

User’s Manual

2.4.7 Parallel Port Connector & VGA Connector (CN1)

Port

COM

VGA

Parallel

COM

Description

Connects a parallel printer, a scanner, or other devices.

For pointing devices or other serial devices

VGA

Signal PIN Signal

RED 1

6 GND

11 NC

GREEN 2

7 GND

12 DAT

GND

BLUE 3

8

NC 4

9 VCC

GND 5

10 GND

15 DCK

Signal Description

CRT horizontal synchronisation output.

CRT vertical synchronisation output.

Display Data Channel Clock. Used as clock signal to/from monitors with DDC interface.

Display Data Channel Data. Used as data signal to/from monitors with DDC interface.

Analog output carrying the red colour signal to the CRT. For 75 Ω cable impedance.

Analog output carrying the green colour signal to the CRT. For 75 Ω cable impedance.

Analog output carrying the blue colour signal to the CRT. For 75 Ω cable impedance.


TxD

RxD

DTR

DSR

RTS

CTS

DCD

RI

AIMB-251 Series

2.4.8 Serial Port 1 Connector in RS-232 Mode (CN1)

Signal

DCD

PIN PIN Signal

1 2 RxD

GND 5 6 DSR

RI/+5V/+12V 9 10 NC


Serial output. This signal sends serial data to the communication link. The signal is set to a marking state on hardware reset when the transmitter is empty or when loop mode operation is initiated.

Serial input. This signal receives serial data from the communication link.

Data Terminal Ready. This signal indicates to the modem or data set that the on-board UART is ready to establish a communication link.

Data Set Ready. This signal indicates that the modem or data set is ready to establish a communication link.

Request To Send. This signal indicates to the modem or data set that the on-board

UART is ready to exchange data.

Clear To Send. This signal indicates that the modem or data set is ready to exchange data.

Data Carrier Detect. This signal indicates that the modem or data set has detected the data carrier.

Ring Indicator. This signal indicates that the modem has received a telephone ringing signal.


User’s Manual


Signal PIN PIN Signal

TxD- 1 2 RxD+

GND 5 6 NC

NC 9 10 NC

TxD+/-

Signal

RxD+/-


Serial output. This differential signal pair sends serial data to the communication link. Data is transferred from Serial Port 2 Transmit Buffer Register to the communication link, if the RTS register of the Serial Port 2 is set to LOW.

Serial input. This differential signal pair receives serial data from the communication link. Received data is available in Serial Port 2 Receiver Buffer

Register.


AIMB-251 Series



DATA- 1 2 NC

DATA+ 3 4 NC

GND 5 6 NC

NC 9 10 NC

2.4.10.1 Signal Description – Serial Port 1 Connector in RS-485 Mode (CN1)

Signal

DATA+/-


This differential signal pair sends and receives serial data to the communication link. The mode of this differential signal pair is controlled through the RTS register of Serial Port 2. Set the RTS register of the Serial Port 2 to LOW for transmitting, HIGH for receiving.

Do not select a mode different from the one used by the connected peripheral, as this may damage CPU board and/or peripheral.

The transmitter drivers in the port are short circuit protected by a thermal protection circuit. The circuit disables the drivers when the die temperature reaches 150 °C.

RS-422 mode is typically used in point to point communication. Data and control signal pairs should be terminated in the receiver end with a resistor matching the cable impedance (typical 100-120 Ω). The resistors could be placed in the connector housing.

RS-485 mode is typically used in multi drop applications, where more than 2 units are communicating. The data and control signal pairs should be terminated in each end of the communication line with a resistor matching the cable impedance (typical 100-120 Ω). Stubs to substations should be avoided.


User’s Manual

2.4.11 Audio Connector (CN2)

Audio-In

Port

Audio-In

Description

Connects a tape player or other audio sources.

Audio-Out

Audio-Out

Connects a headphone or a speaker.

Microphone

Microphone Connects a microphone.

2.4.12 RJ-45 Ethernet / USB 0 & 1, 4 & 5 Connectors (CN3, CN4)

CN3 Port Description

Allows connection to a Local

RJ-45 Area Network (LAN) through a network hub.

CN4

USB 2.0

For connecting USB port 0,

1 (CN4), 4, 5 (CN3)

PIN 4-Wire 5-Wire

1 NA NA

4

5

2

3

NA

NA

NA

Right

8

9

6 Left

7 Bottom

Top

GND

NA

NA

Sense

LR

LL

UR

UL

GND

8-Wire

Right Sense

Left Sense

Bottom Sense

Top Sense

Right Excite

Left Excite

Bottom Excite

Top Excite

GND


AIMB-251 Series

2.4.14 Floppy Connector (FLP1)


GND 1 2 REDWC

GND 5 6 NC

GND 9 10 MOTSA

GND 11 12 DRVSB

GND 13 14 DRVSA

GND 15 16 MOTEB

GND 17 18 DIR

GND 19 20

GND 21 22

STEP

WDATA

GND 23 24 WGATE

GND 25 26

GND 27 28

GND

TK00

WPT

29 30 RDATA

GND 31 32

GND 33 34

SIDE1

DSKCHG


User’s Manual

STEP

REDWC

TK00

INDEX

WPT

DSKCHG

RDATA

Signal

WDATA

WGATE

MOATSA

MOTEB

DRVSA

DRVSB

SIDE1

DIR


The read data input signal from the FDD.

Write data. This logic low open drain writes pre-compensation serial data to the selected FDD. An open drain output.

Write enable. An open drain output.

Motor A On. When set to 0, this pin enables disk drive 0. This is an open drain output.

Motor B On. When set to 0, this pin enables disk drive 1. This is an open drain output.

Drive Select A. When set to 0, this pin enables disk drive A. This is an open drain output.

Drive Select B. When set to 0, this pin enables disk drive B. This is an open drain output.

This output signal selects side of the disk in the selected drive.

Direction of the head step motor. An open drain output

Logic 1 = outward motion

Logic 0 = inward motion

Step output pulses. This active low open drain output produces a pulse to move the head to another track.

This output indicates whether a low drive density (250/300kbps at low level) or a high drive density (500/1000kbps at high level) has been selected.

Track 0. This Schmitt-triggered input from the disk drive is active low when the head is positioned over the outermost track.

This Schmitt-triggered input from the disk drive is active low when the head is positioned over the beginning of a track marked by an index hole.

Write protected. This active low Schmitt input from the disk drive indicates that the diskette is write-protected.

Diskette change. This signal is active low at power on and whenever the diskette is removed.


AIMB-251 Series

2.4.15 Primary IDE Connector (IDE_1)


RESET# 1 2 GND

PDD6 5 6 PDD9

PDD4 9 10 PDD11

PDD3 11 12

PDD2 13 14 PDD13

PDD1 15 16

PDD0 17 18 PDD15

GND 19 20 NC

PDREQ 21 22 GND

PDIOW# 23 24 GND

PDIOR# 25 26 GND

PIORDY 27 28 GND

PDDACK# 29 30 GND

IRQ14 31 32 NC

PDA1 33 34 PATADET

PDA0 35 36 PDA2

PDCS1# 37 38 PDCS3#

IDEACTP# 39 40 GND


User’s Manual

2.4.16 Secondary IDE Connector (IDE_2)


RESET# 1 2 GND

SDD6 5 6 SDD9

SDD4 9 10 SDD11

SDD3 11 12

SDD2 13 14 SDD13

SDD1 15 16

SDD0 17 18 SDD15

GND 19 20 NC

SDREQ 21 22 GND

SDIOW# 23 24 GND

SDIOR# 25 26 GND

SIORDY 27 28 GND

SDDACK# 29 30 GND

IRQ15 31 32 NC

SDA1 33 34 SATADET

SDA0 35 36 SDA2

SDCS1# 37 38 SDCS3#

IDEACTP# 39 40 GND

+5V 41 42 +5V

GND 43 44 NC

Due to IDE compatibility issue, do not use CF and IDE device on secondary IDE channel at the same time.


AIMB-251 Series

2.4.16.1 Signal Description – Primary / Secondary IDE Connector (IDE_1, IDE_2)

The IDE interface supports PIO modes 0 to 4 and Bus Master IDE. Data transfer rates up to

100 MB/Sec is possible.

Signal

DA [2:0]

DCS1#, DCS3#

D [15:0]

IOR#

IOW#

IORDY

RESET#

IRQ14

DREQ

DACK#

DACT#


IDE Address Bits. These address bits are used to access a register or data port in a device on the IDE bus.

IDE Chip Selects. The chip select signals are used to select the command block registers in an IDE device. DCS1# selects the primary hard disk.

IDE Data Lines. D [15:0] transfers data to/from the IDE devices.

IDE I/O Read. Signal is asserted on read accesses to the corresponding IDE port addresses.

IDE I/O Write. Each signal is asserted on write accesses to corresponding the IDE port addresses.

When deasserted, these signals extend the transfer cycle of any host register access when the device is not ready to respond to the data transfer request.

IDE Reset. This signal resets all the devices that are attached to the IDE interface.

Interrupt line from hard disk. Connected directly to PC-AT bus.

The DREQ is used to request a DMA transfer from the South Bridge. The direction of the transfers is determined by the IOR#/IOW# signals.

DMA Acknowledge. The DACK# acknowledges the DREQ request to initiate DMA transfers.

Signal from hard disk indicating hard disk activity. The signal level depends on the hard disk type, normally active low. The signal is routed directly to the LED1.

PATADET,

SATADET

Primary/Secondary IDE detected.


User’s Manual

2.4.17 LCD Inverter Connector (JBKL1)

Signal

+12V

PIN

1

GND 2

ENBKL 3

VR 4

+5V 5

Note:

For inverters with adjustable Backlight function, it is possible to control the

LCD brightness through the VR signal controlled by JMISC. Please see the

JMISC section for detailed circuitry information.

2.4.17.1 Signal Description – LCD Inverter Connector (JBKL1)

VR

ENBKL


Vadj = 0.75V ~ 4.25V (Recommended: 4.7KΩ, >1/16W)

LCD backlight ON/OFF control signal


AIMB-251 Series

2.4.18 CD-ROM Audio Input Connector (JCD1)

Signal

CD_L

PIN

1

GND 2

GND 3

CD_R 4

Signal

CD_R Right CD-IN signal

CD_L Left CD-IN signal

2.4.19 Serial Port 2 Connector (JCOM1)


Signal

DCD

PIN PIN Signal

1 2 RxD

GND

RI

5 6 DSR

9 10 NC


User’s Manual

2.4.20 Serial Port 3/4 Connector (JCOM2, JCOM3)

JCOM2

JCOM3

Signal

DCD

PIN PIN Signal

1 2 RxD

GND 5 6 DSR

RI 9 10 NC

2.4.20.1 Signal Description – Serial Port 2/3/4 Connector (JCOM1, JCOM2, JCOM3)

Signal

TxD

RxD

DTR

DSR

RTS

CTS

DCD

RI


Serial output. This signal sends serial data to the communication link. The signal is set to a marking state on hardware reset when the transmitter is empty or when loop mode operation is initiated.

Serial input. This signal receives serial data from the communication link.

Data Terminal Ready. This signal indicates to the modem or data set that the on-board UART is ready to establish a communication link.

Data Set Ready. This signal indicates that the modem or data set is ready to establish a communication link.

Request To Send. This signal indicates to the modem or data set that the on-board

UART is ready to exchange data.

Clear To Send. This signal indicates that the modem or data set is ready to exchange data.

Data Carrier Detect. This signal indicates that the modem or data set has detected the data carrier.

Ring Indicator. This signal indicates that the modem has received a telephone ringing signal.


AIMB-251 Series

2.4.21 Digital Input / Output Connector (JDIO1)

Signal

DIO0

PIN PIN

1 2

Signal

DIO10

DIO2

DIO4

5 6

9 10

DIO6 13 14

DIO12

DIO14

DIO16

SMB_CLK_S 17 18 SMB_DATA_S

Signal

DI [0:17]

SMB_CLK

SMB_DATA


Digital Input/Output Data Bit 0 to Bit 17

Data input for I

2

C input, 5V tolerant

Data input for I 2 C serial input, 5V tolerant


User’s Manual

2.4.22 Front Panel Connector (JFP1)

Signal

RESET

GND

PIN PIN

1 2

Signal

SYS_LED+

3 4 SYS_LED-

HDD_LED+ 5

HDD_LED-

6 PWR_LED+

7 8 PWR_LED-

VCCSB 9 10 SUS_LED+

PWR_BUT 11 12 SUS_LED-

SUS_BUT 13 14 SPK+

GND 15 16 SPK-

2.4.22.1 Signal Description – Front Panel Connecter (JFP1)

1, 3

2, 4

5, 7

6, 8

9, 11

10, 12

13, 15

PIN No.

Reset SW

System LED

HDD LED

Power-On LED

Power SW

Suspend LED

Suspend SW

Description

14, 16 Speaker

System LED will be on as long as power supply is connected.


AIMB-251 Series

2.4.23 IrDA Connector (JIR1)

Signal

+5V

PIN

1

NC 2

IRRX 3

GND 4

IRTX 5

IRRX

Signal

Infrared Receiver input



User’s Manual

2.4.24 LVDS Connector (JLVDS1)

Signal

+5V

PIN PIN Signal

2 1 +3.3V

I

2

C_DAT 6 5 I

2

C_CLK

Txout0 10 9 Txout1

Txout0# 12 11 Txout1#

GND 14 13 GND

Txout2 16 15 Txout3

Txout2# 18 17 Txout3#

E_Txout0 22 21 E_Txout1

E_Txout0# 24 23

GND 26 25 GND

E_Txout2 28 27 E_Txout3

E_Txout2# 30 29 E_Txout3#

Txclk 34 33 E_Txclk

GND 38 37 GND

2.4.24.1 Signal Description – LVDS Connector (JLVDS1)

Signal

I 2 C_DAT, I 2 C_CLK


I

2

C interface for panel parameter EEPROM. This EERPOM is mounted on the

LVDS receiver. The data in the EEPROM allows the EXT module to automatically set the proper timing parameters for a specific LCD panel.


AIMB-251 Series

2.4.25 Miscellaneous Setting Connector (JMISC1)

Signal PIN PIN

CASEOPEN# 1 2

Signal

VTIN3

+5V

GND

5 6

9 10

+5V

GND

2.4.25.1 Signal Description – Miscellaneous Setting Connecter (JMISC1)

PIN No.

1, 3 Case open detection

LCD brightness setting

Description

VCC

JMISC1

5, 7, 9

2, 4

6, 8, 10

5

7 JBKL1 pin 4

9

Variation Resistor (Recommended: 4.7KΩ, >1/16W)

Thermal detection

CF Master/Slave setting 8-10 short (default: Master)


User’s Manual

2.4.26 TMDS DVI Connector (JTMDS1)

Signal

+5V

PIN PIN

2 1

Signal

TDC0#

NC 6 5 NC

HPDET 10 9 TDC1#

TMDSDATA 12 11 TDC1

TMDSDCLK 14 13 NC

GND 16 15 NC

TLC# 18 17 TDC2#

TLC 20 19 TDC2

2.4.26.1 Signal Description – TMDS Connecter (JTMDS1)

Signal

TDC0, TDC0#

TDC1, TDC1#

TDC2, TDC2#

Type

O

O

O


DVI Data Channel 0 Outputs: These pins provide the DVI differential outputs for data channel 0 (blue).

DVI Data Channel 1 Outputs: These pins provide the DVI differential outputs for data channel 1 (green).

DVI Data Channel 2 Outputs: These pins provide the DVI differential outputs for data channel 2 (red).

Hot Plug Detect (internal pull-down): This input pin determines whether the DVI is connected to a DVI monitor. When terminated,

TMDSDATA

TLC, TLC#

I/O

O

Changes on the status of this pin will be relayed to the graphics controller via the P-OUT/TLDET* or GPIO (1)/TLDET* pin pulling low.

DVO I2C Data: This signal is used as the I2C_DATA for a digital display (i.e. TV-Out Encoder, TMDS transmitter). This signal is tri-stated during a hard reset.

DVI DDC Clock: This signal is used as the DDC clock for a digital during a hard reset.

DVI Clock Outputs: These pins provide the differential clock outputs for the DVI interface corresponding to data on TDC (0:2) outputs.


AIMB-251 Series

2.4.27 TV Out Connector (JTV1)


TVCVB 1 2 GND

TVYFCC2 3 4 TVCFCC2

GND 5 6 GND

2.4.27.1 Signal Description – TV Out Connecter (JTV1)

Signal

TVYFCC2

TVCFCC2

TVCVB


Luma / Green Output. This pin outputs a selectable video signal. The output is designed to drive a 75 ohm doubly terminated load. The output can be selected to be S-video luminance or green.

Chroma / Green Output. This pin outputs a selectable video signal. The output is designed to drive a 75 ohm doubly terminated load. The output can be selected to be S-video chrominance or red

Composite Video / Blue Output. Chroma / Green Output. This pin outputs a selectable video signal. The output is designed to drive a 75 ohm doubly terminated load. The output can be selected to be composite video or blue.


User’s Manual

2.4.28 USB Connector 2 & 3 (JUSB1)

2.4.29 USB Connector 4 & 5 (JUSB2)


+5V 1 2 GND

D2+

GND

5 6

9 10

D3+

+5V


+5V 1 2 GND

D4+

GND

5 6

9 10

D5+

+5V

Signal

D2+/D2-

D3+/D3-

D4+/D4-

D5+/D5-


Differential bi-directional data signal for USB channel 2. Clock is transmitted along with the data using NRZI encoding. The signalling bit rate is up to 12 Mbs.





AIMB-251 Series

2.4.30 PS/2 Keyboard & Mouse Connector (KB_MS1)

Mouse

Keyboard

Port Description

Mouse PS/2 Mouse connector

Keyboard PS/2 Keyboard connector

2.4.31 System Fan Connector 1 & 2 (S_FAN1, S_FAN2)

Signal PIN

TAC 3

+12V 2

GND 1

S_FAN1

S_FAN2

2.4.31.1 Signal Description – System Fan Connector (S_FAN1, S_FAN2)


TAC Fan speed monitor


User’s Manual

3 BIOS Setup


AIMB-251 Series

3.1 Starting Setup

The AwardBIOS™ is immediately activated when you first power on the computer. The

BIOS reads the system information contained in the CMOS and begins the process of checking out the system and configuring it. When it finishes, the BIOS will seek an operating system on one of the disks and then launch and turn control over to the operating system.

While the BIOS is in control, the Setup program can be activated in one of two ways:

By pressing <Del> immediately after switching the system on, or

By pressing the <Del> key when the following message appears briefly at the bottom of the screen during the POST (Power On Self Test).

Press DEL to enter SETUP

If the message disappears before you respond and you still wish to enter Setup, restart the system to try again by turning it OFF then ON or pressing the "RESET" button on the system case. You may also restart by simultaneously pressing <Ctrl>, <Alt>, and <Delete> keys. If you do not press the keys at the correct time and the system does not boot, an error message will be displayed and you will again be asked to.

Press F1 to Continue, DEL to enter SETUP


User’s Manual

3.2 Using Setup

In general, you use the arrow keys to highlight items, press <Enter> to select, use the

PageUp and PageDown keys to change entries, press <F1> for help and press <Esc> to quit. The following table provides more detail about how to navigate in the Setup program using the keyboard.

Button

↑

↓

←

→

Esc key

PgUp key

PgDn key

+ key

- key

Description

Move to previous item

Move to next item

Move to the item in the left hand

Move to the item in the right hand

Main Menu -- Quit and not save changes into CMOS

Status Page Setup Menu and Option Page Setup Menu -- Exit current page and return to Main Menu

Increase the numeric value or make changes

Decrease the numeric value or make changes

Increase the numeric value or make changes

Decrease the numeric value or make changes

F1 key General help, only for Status Page Setup Menu and Option Page Setup Menu

(Shift) F2 key

F3 key

F4 key

F5 key

Change color from total 16 colors. F2 to select color forward, (Shift) F2 to select color backward

Calendar, only for Status Page Setup Menu

Reserved

Restore the previous CMOS value from CMOS, only for Option Page Setup Menu

F6 key

Load the default CMOS value from BIOS default table, only for Option Page Setup

Menu

F7 key

F8 key

F9 key

Load the default

Reserved

Reserved

F10 key Save all the CMOS changes, only for Main Menu

•

Navigating Through The Menu Bar

Use the left and right arrow keys to choose the menu you want to be in.

Note: Some of the navigation keys differ from one screen to another.


AIMB-251 Series

•

To Display a Sub Menu

Use the arrow keys to move the cursor to the sub menu you want. Then press

<Enter>. A “¾” pointer marks all sub menus.

3.3 Getting Help

Press F1 to pop up a small help window that describes the appropriate keys to use and the possible selections for the highlighted item. To exit the Help Window press <Esc> or the F1 key again.

3.4 In Case of Problems

If, after making and saving system changes with Setup, you discover that your computer no longer is able to boot, the AwardBIOS™ supports an override to the CMOS settings which resets your system to its defaults.

The best advice is to only alter settings which you thoroughly understand. To this end, we strongly recommend that you avoid making any changes to the chipset defaults. These defaults have been carefully chosen by both Award and your systems manufacturer to provide the absolute maximum performance and reliability. Even a seemingly small change to the chipset setup has the potential for causing you to use the override.


User’s Manual

3.5 Main Menu

Once you enter the AwardBIOS™ CMOS Setup Utility, the Main Menu will appear on the screen. The Main Menu allows you to select from several setup functions and two exit choices. Use the arrow keys to select among the items and press <Enter> to accept and enter the sub-menu.

Note that a brief description of each highlighted selection appears at the bottom of the screen.

Note: The BIOS setup screens shown in this chapter are for reference purposes only, and may not exactly match what you see on your screen.

Visit the Advantech website ( www.Advantech.com.tw

) to download the latest product and BIOS information.


AIMB-251 Series

3.5.1 Standard CMOS Features

The items in Standard CMOS Setup Menu are divided into few categories. Each category includes no, one or more than one setup items. Use the arrow keys to highlight the item and then use the <PgUp> or <PgDn> keys to select the value you want in each item.

3.5.1.1 Main Menu Selection

This reference table shows the selections that you may make on the Main Menu.

Item

Time

IDE Primary Master

IDE Primary Slave

IDE Secondary Master

IDE Secondary Slave

Options

HH : MM : SS

Options are in 3.5.1.2

Description

Set the system time

Press <Enter> to enter the sub menu of detailed options

Drive A

Drive B

Video

Halt On

Boot Display

None

360K, 5.25 in

1.2M, 5.25 in

720K, 3.5 in

1.44M, 3.5 in

2.88M, 3.5 in

EGA/VGA

CGA 40

CGA 80

MONO

All Errors

No Errors

All, but Keyboard

All, but Diskette

All, but Disk/Key

CRT

LFP (LVDS)

CRT+LFP(LVDS)

EFP(PANEL-LINK)

TV

CRT+EFP

Select the type of floppy disk drive installed in your system

Select the default video device

Select the situation in which you want the BIOS to stop the POST process and notify you

Select Display Device that the screen will be shown


User’s Manual

Item

Panel Type

TV Standard

Video Connector

TV Format

Options

640 x 480 18

800 x 600 18

1024 x 768 18

1280 x 1024 24/2

1400 x 1050 24

1600 x 1200 24

1280 x 768 24

1680 x 1050 24

1920 x 1200 24

1024 x 768 24

1024 x 768 18/2

1024 x 768 24/2

1280 x 800 18

1280 x 600 18

Off, NTSC

PAL, SECAM

Automatic, Composite

Component, Both

Auto, NTSC_M,

NTSC_M_J, NTSC_433,

NTSC_N, PAL_B,

PAL_G, PAL_D,

PAL_H, PAL_I,

PAL_M, PAL_N,

PAL_60, SECAM_L,

SECAM_L1, SECAM_B,

SECAM_D, SECAM_G,

SECAM_H, SECAM_K,

SECAM_K1

Description

Select Panel Resolution that will be displayed depending on the LCD Panel (LFP)

Select the output mode of TV Standard

Select the type of Video display connector

This item allows you to select different TV signal format when the TV Standard item is not off.

3.5.1.2 IDE Adapter Setup

The IDE adapters control the hard disk drive. Use a separate sub menu to configure each hard disk drive. The below table will shows the IDE primary master sub menu.

Item

IDE HDD Auto-detection

IDE Primary Master

IDE Primary Slave,

IDE Secondary Master,

IDE Secondary Slave

Options

Press Enter

None

Auto

Manual

Access Mode

CHS, LBA

Large, Auto

Choose the access mode for this hard disk

The following options are selectable only if the ‘IDE Channel …’ item is set to ‘Manual’

Cylinder

Head

Precomp

Min = 0

Max = 65535

Min = 0

Max = 255

Min = 0

Max = 65535

Set the number of cylinders for this hard disk.

Set the number of read/write heads

**** Warning: Setting a value of 65535 means no hard disk

Landing zone

Sector

Min = 0

Max = 65535

Min = 0

Max = 255

Description

Press Enter to auto-detect the HDD on this channel. If detection is successful, it fills the remaining fields on this menu.

Selecting ‘manual’ lets you set the remaining fields on this screen.

Selects the type of fixed disk. "User

Type" will let you select the number of cylinders, heads, etc. Note:

PRECOMP=65535 means NONE !

****

Number of sectors per track


AIMB-251 Series

3.5.2 Advanced BIOS Features

This section allows you to configure your system for basic operation. You have the opportunity to select the system’s default speed, boot-up sequence, keyboard operation, shadowing and security.

This item allows you to setup the CPU thermal management function.

Item

Thermal Management

TM2 Bus VID

Execute Disable Bit

Options

Thermal Monitor 1

Thermal Monitor 2

0.700 ~ 1.708

Enabled, Disabled

Description

Allows you to choose the VIRUS Warning feature for IDE Hard Disk boot sector protection.

If this function is enabled and someone attempt to write data into this area, BIOS will show a warning message on screen and alarm beep.

Item

Enabled

Disabled

Description

Activates automatically when the system boots up causing a warning message to appear when anything attempts to access the boot sector or hard disk partition table.

No warning message will appear when anything attempts to access the boot sector or hard disk partition table.

3.5.2.3 CPU L1 & L2 & L3 Cache

The item allows you to speed up memory access. However, it depends on CPU design.

Item Description

3.5.2.4 Quick Power On Self Test

This category speeds up Power On Self Test (POST) after you power up the computer. If it is set to Enable, BIOS will shorten or skip some check items during POST.

Item

Enabled Enable quick POST

Description


User’s Manual

3.5.2.5 First/Second/Third/Other Boot Device

The BIOS attempts to load the operating system from the devices in the sequence selected in these items.

Item Description

HDD-0~4 Hard Disk Device 0, 1, 2, 3, 4

USB-FDD

USB-ZIP

USB-CDROM

USB-HDD

USB Floppy Device

USB ZIP Device

USB CDROM Device

USB Hard Disk Device

Disabled Disabled any boot device

3.5.2.6 Swap Floppy Drive

While system has two floppy drivers installed, this item will be affected. This function is to assign physical drive B to logical drive A.

Item

Enabled

Description

Assign physical drive B to logical drive A

3.5.2.7 Book Up Floppy Seek

Seeks disk drives during boot up. Disabling seeds boot up.

Item

Enabled

Disabled

Enable Floppy Seek

Disable Floppy Seek

Description

3.5.2.8 Boot Up NumLock Status

Select power on state for NumLock.

Item Description

3.5.2.9 Gate A20 Option

Select if chipset or keyboard controller should control Gate A20.

Item Description

Normal

Fast

A pin in the keyboard controller controls Gate A20

Lets chipset control Gate A20

3.5.2.10 Typematic Rate Setting

Key strokes repeat at a rate determined by the keyboard controller. When enabled, the typematic rate and typematic delay can be selected.

Item

Enabled

Disabled

Enable typematic rate/delay setting

Disable typematic rate/delay setting

Description

3.5.2.11 Security Option

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


AIMB-251 Series

Item

System

Setup

Description

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

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 SETTING at Main Menu and then you will be asked to enter password. Do not type anything and just press

<Enter>, it will disable security. Once the security is disabled, the system will boot and you can enter Setup freely.

3.5.2.12 APIC Mode

The BIOS supports versions 1.4 of the Intel multiprocessor specification. When enabled,

The MPS Version 1.4 Control for OS can be activated.

The choice: Enabled/Disabled.

3.5.2.13 MPS Version Control For OS

This feature is only applicable to multiprocessor board as it specifies the version of the

Multi-Processor Specification (MPS) that the board will use.

The choice: 1.4, 1.1.

3.5.2.14 OS Select for DRAM > 64MB

Select the operating system that is running with greater than 64MB of RAM on the system.

Item

Non-OS2

OS2

Disable OS for over 64 MB DRAM

Enable OS for over 64 MB DRAM

Description

3.5.2.15 Report No FDD For WIN95

The original Windows95 requires the presence of a floppy. Unless the BIOS tells it to disregard the absence of the drive, it will generate an error message. For other operating systems as Win98 etc this field is without relevance.

No

Yes

Item

Don’t generate error message

Generate error message

Description

3.5.2.16 Full Screen LOGO Show

This item allows to enabled/disabled the full screen logo during BIOS boot up process.

Item

Enabled

Disabled

Full Screen Logo show is enabled

Full Screen Logo show is disabled

Description

3.5.2.17 Logo (EPA) Show

This item allows you enabled/disabled the small EPA logo show on screen at the POST step.

Item

Enabled

Disabled

EPA Logo show is enabled

EPA Logo show is disabled

Description


User’s Manual

3.5.3 Advanced Chipset Features

This section allows you to configure the system based on the specific features of the installed chipset. This chipset manages bus speeds and access to system memory resources, such as DRAM and the external cache. It also coordinates communications between the conventional ISA bus and the PCI bus. It must be stated that these items should never need to be altered. The default settings have been chosen because they provide the best operating conditions for your system. The only time you might consider making any changes would be if you discovered that data was being lost while using your system.

The first chipset settings deal with CPU access to dynamic random access memory

(DRAM). The default timings have been carefully chosen and should only be altered if data is being lost. Such a scenario might well occur if your system had mixed speed DRAM chips installed so that greater delays may be required to preserve the integrity of the data held in the slower memory chips.

3.5.3.1 DRAM Timing Selectable

This item allows you to select the DRAM timing value by SPD data or Manual by yourself.

The choices: Manual, By SPD.

3.5.3.2 CAS Latency Time

This item controls the time delay (in clock cycles - CLKs) that passes before the SDRAM starts to carry out a read command after receiving it. This also determines the number of

CLKs for the completion of the first part of a burst transfer. In other words, the lower the latency, the faster the transaction.

The choices: 2, 2.5.

This item is the minimum delay time between Active and Precharge

The choices: 5, 6, 7.


AIMB-251 Series

3.5.3.4 DRAM RAS# to CAS# Delay

This option allows you to insert a delay between the RAS (Row Address Strobe) and CAS

(Column Address Strobe) signals. This delay occurs when the SDRAM is written to, read from or refreshed. Naturally, reducing the delay improves the performance of the SDRAM while increasing it reduces performance.

The choices: 2, 3.

3.5.3.5 DRAM RAS# Precharge

This option sets the number of cycles required for the RAS to accumulate its charge before the SDRAM refreshes. Reducing the precharge time to 2 improves SDRAM performance but if the precharge time of 2 is insufficient for the installed SDRAM, the SDRAM may not be refreshed properly and it may fail to retain data

So, for better SDRAM performance, set the SDRAM RAS Precharge Time to 2 but increase it to 3 if you face system stability issues after reducing the precharge time.

The choices: 2, 3.

3.5.3.6 DRAM Data Integrity Mode

Select ECC if your memory module supports it. The memory controller will detect and correct single-bit soft memory errors. The memory controller will also be able to detect double-bit errors though it will not be able to correct them. This provides increased data integrity and system stability.

The choices: Non-ECC, ECC.

3.5.3.7 MGM Core Frequency

This field sets the frequency of the DRAM memory installed.

The choices: Auto Max 266MHz, 400/266/133/200 MHz, 400/200/100/200 MHz,

400/200/100/133 MHz, 400/266/133/267 MHz, 533/266/133/200 MHz,

533/266/133/266 MHz, 400/333/166/250 MHz, Auto Max 400/333 MHz,

Auto Max 533/333 MHz.

3.5.3.8 System BIOS Cacheable

This feature is only valid when the system BIOS is shadowed. It enables or disables the caching of the system BIOS ROM at F0000h-FFFFFh via the L2 cache. This greatly speeds up accesses to the system BIOS. However, this does not translate into better system performance because the OS does not need to access the system BIOS much.

The choices: Disabled, Enabled.

3.5.3.9 Video BIOS Cacheable

This feature is only valid when the video BIOS is shadowed. It enables or disables the caching of the video BIOS ROM at C0000h-C7FFFh via the L2 cache. This greatly speeds up accesses to the video BIOS. However, this does not translate into better system performance because the OS bypasses the BIOS using the graphics driver to access the video card's hardware directly.

The Choice: Enabled, Disabled.


User’s Manual

3.5.3.10 Memory Hole At 15M-16M

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

The choice: Enable, Disable.

3.5.3.11 Delayed Transaction

This feature is used to meet the latency of PCI cycles to and from the ISA bus. The ISA bus is much, much slower than the PCI bus. Thus, PCI cycles to and from the ISA bus take a longer time to complete and this slows the PCI bus down.

However, enabling Delayed Transaction enables the chipset's embedded 32-bit posted write buffer to support delayed transaction cycles. This means that transactions to and from the ISA bus are buffered and the PCI bus can be freed to perform other transactions while the ISA transaction is underway.

This option should be enabled for better performance and to meet PCI 2.1 specifications.

Disable it only if your PCI cards cannot work properly or if you are using an ISA card that is not PCI 2.1 compliant.

The Choice: Enabled, Disabled.

3.5.3.12 Delay Prior to Thermal

When you system temperature higher, you can set the DRAM access time slowdown between on 4 min – 32 min delay.

The choice: 4 Min, 8 Min, 16 Min, and 32 Min.

3.5.3.13 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, 256.

3.5.3.14 Init Display First

This item allows you to decide to active whether PCI Slot or Onboard/AGP first.

The choice: PCI Slot, Onboard/AGP.

3.5.3.15 On-Chip VGA

This item is enabled as the onboard VGA is used.

The Choices: Enabled, Disabled.

3.5.3.16 On-Chip Frame Buffer Size

This item is to select the amount of system memory that will be utilized as internal graphics device memory

The choices: 1MB, 4MB, 8MB, 16MB, 32MB.


AIMB-251 Series

Use this menu to specify your settings for integrated peripherals.

3.5.4.1 OnChip IDE Device

The chipset contains a PCI IDE interface with support for two IDE channels. Select Enabled to activate the primary IDE interface. Select Disabled to deactivate this interface.


Item

On-Chip Primary PCI IDE

On-Chip Secondary PCI IDE

IDE Primary Master PIO

IDE Primary Slave PIO

IDE Secondary Master PIO

IDE Secondary Slave PIO

IDE Primary Master UDMA

IDE Primary Slave UDMA

IDE Secondary Master UDMA

IDE Secondary Slave UDMA

Options

Enabled

Disabled

Auto

Mode 0

Mode 1

Mode 2

Mode 3

Mode 4

Auto

Disabled

User’s Manual

Description

The chipset contains a PCI IDE interface with support for two IDE channels. Select Enabled to activate the primary/secondary IDE interface.

Select Disabled to deactivate this interface.

The IDE PIO (Programmed Input/Output) fields let you set a PIO mode (0-4) for each of the four

IDE devices that the onboard IDE interface supports. Modes 0 through 4 provide successively increased performance. In Auto mode, the system automatically determines the best mode for each device.

Ultra DMA implementation is possible only if your IDE hard drive supports it and the operating environment includes a DMA driver

(Windows 95 OSR2 or a third-party IDE bus master driver). If the hard drive and the system software both support Ultra DMA, select Auto to enable BIOS support.

Item

USB Controller

USB 2.0 Controller

USB Keyboard Support

USB Mouse Support

AC97 Audio

Options

Enabled

Disabled

Disabled

Enabled

Enabled

Disabled

Enabled

Disabled

Auto

Disabled

Description

This item allows you to set the USB Controller.

This item allows you to set the USB 2.0

Controller.

This item allows you to set the system’s USB keyboard to Enabled/Disabled.

This item allows you to set the system’s USB

Mouse to Enabled/Disabled.

This item allows you to decide to Auto/disable the Codec chip to support AC97 Audio.


AIMB-251 Series


User’s Manual

Item

Onboard FDC Controller

Onboard Serial Port 1


Onboard Parallel Port

Parallel Port Mode

EPP Mode Select

ECP Mode Use DMA

PWRON After PWR-Fail

Options

Enabled

Disabled

Description

Select Enabled if your system has a floppy disk controller (FDC) installed on the system board and you wish to use it. If you are not going to use FDC or the system has no floppy drive, select Disabled in this field.

Disable, 3F8/IRQ4

2F8/IRQ3, 3E8/IRQ4

2E8/IRQ3, AUTO

Disabled, 378/IRQ7

278/IRQ5, 3BC/IRQ7

SPP, EPP

ECP, Normal

ECP+EPP

Select an address and corresponding interrupt for the first and second serial ports.

Select a matching address and interrupt for the physical parallel (printer) port.

Select an operating mode for the onboard parallel port. Select Compatible or Extended unless you are certain both your hardware and software support EPP or ECP mode.

EPP1.9, EPP1.7 Select EPP port type 1.7 or 1.9.

1, 3 Select a DMA channel for the port.

Off, On

Former-Sts

Disable, 3F8

2F8, 3E8,

2E8

This item is to set whether to run Ac Loss Auto

Restart or off

Select an IRQ address for the third and forth serial Ports.



Serial Port 3 Use IRQ

Serial Port 4 Use IRQ

Serial Port 3 Mode

IRQ3, IRQ4, IRQ5

IRQ9, IRQ10, IRQ11

Normal

IRDA

Select an IRQ for the third and forth serial ports.

Select an IO address for the third serial ports

3.5.4.4 Watch Dog Timer

This option will determine watch dog timer.

The choices: Disabled, 10, 20, 30, 40 Sec. 1, 2, 4 Min.


AIMB-251 Series

The Power Management Setup allows you to configure you system to most effectively save energy while operating in a manner consistent with your own style of computer use.

This item allows you to enable/disable the ACPI function.

The choices: Enable, Disable.

3.5.5.2 ACPI Suspend Type

This item will set which ACPI suspend type will be used.

The choice: S1(POS), S3(STR).S1&S3.

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

Item

Min. Power Saving

Max. Power Saving

User Defined

Description

Minimum power management,

HDD Power Down = 15 Min,

Maximum power management,

HDD Power Down =1 Min,

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.

This determines the manner in which the monitor is blanked.

The choices: Blank Screen, V/H SYNC+Blank, DPMS.

3.5.5.5 Video Off In Suspend

This determines the manner in which the monitor is blanked.

The choice: No, Yes.

This function allows to select Suspend type.

The choices: Stop Grant, PwrOn Suspend.


User’s Manual

3.5.5.7 MODEM Use IRQ

This determines the IRQ in which the MODEM can use .

The choices: NA, 3, 4, 5, 7, 9, 10, 11.

3.5.5.8 Soft-Off by PWR-BTTN

Pressing the power button for more than 4 seconds forces the system to enter the Soft-Off state when the system has “hung”.(Only could working on ATX Power supply)

The choices: Delay 4 Sec, Instant-Off.

3.5.5.9 Wake Up by PCI Card

This will enable the system to wake up through PCI Card peripheral.

The choices: Enable, Disabled.

3.5.5.10 Power On By Ring

This determines whether the system boot up if there’s an incoming call from the Modem.

The choices: Enable, Disabled.

3.5.5.11 Resume By Alarm

This function is for setting date and time for your computer to boot up.

The choices: Enabled, Disabled.

3.5.5.12 Primary/Secondary IDE 0/1, FDD,COM,LPT PORT, PCI PIRQ[A-D]#

Reload Global Timer events are I/O events whose occurrence can prevent the system from entering a power saving mode or can awake the system from such a mode. In effect ,the system remain alert for anything which occurs to a device which is configured as

Enabled ,even when the system is in a power down mode.



AIMB-251 Series

3.5.6 PnP / PCI Configuration

This section describes configuring the PCI bus system. PCI, or Personal Computer

I nterconnect, is a system which allows I/O devices to operate at speeds nearing the speed the CPU itself uses when communicating with its own special components. This section covers some very technical items and it is strongly recommended that only experienced users should make any changes to the default settings.

Normally, you leave this field Disabled. Select Enabled to reset Extended System

Configuration Data (ESCD) when you exit Setup if you have installed a new add-on and the system reconfiguration has caused such a serious conflict that the operating system cannot boot.


3.5.6.2 Resources Controlled By

The Award Plug and Play BIOS has the capacity to automatically configure all of the boot and Plug and Play compatible devices. However, this capability means absolutely nothing unless you are using a Plug and Play operating system such as Windows ®95. If you set this field to “manual” choose specific resources by going into each of the sub menu that follows this field (a sub menu is preceded by a “¾”).

The choices: Auto(ESCD), Manual.

3.5.6.3 PCI / VGA Palette Snoop

Leave this field at Disabled.



3.5.7 PC Health Status

This section shows the status of your CPU, Fan & System.

User’s Manual

3.5.7.1 Case Open Warning

This item allows to enable the case open warning function.



AIMB-251 Series

3.5.8 Frequency / Voltage Control

This menu specifies your setting for frequency/voltage control.

3.5.8.1 Auto Detect PCI Clk

This item allows you to enable/disable auto detect PCI Clock.


This item is to adjust extreme values of the pulse for EMI test.


3.5.8.3 CPU Host / 3V66 / PCI Clock

These options allow you to set CPU Host/3V66/PCI clock into various types of frequencies.

The choices: Default, 100/66/33MHz, 105/70/35MHz, 109/73/36MHz, 114/76/38MHz,

117/78/39MHz, 127/85/42MHz, 130/87/43MHz, 133/67/33MHz,

137/69/34MHz, 141/71/35MHz, 145/73/36MHz, 150/75/38MHz,

155/78/39MHz, 160/80/40MHz.


User’s Manual

3.5.9 Load Fail-Safe Defaults

Use this menu to load the BIOS default values for the minimal/stable performance for your system to operate.

Press <Y> to load the BIOS default values for the most stable, minimal-performance system operations.

3.5.10 Load Optimized Defaults

Use this menu to load the BIOS default values that are factory settings for optimal performance system operations. While Award has designed the custom BIOS to maximize performance, the factory has the right to change these defaults to meet their needs.

Press <Y> to load the default values setting for optimal performance system operations.


AIMB-251 Series

3.5.11 Set Supervisor / User Password

You can set either supervisor or user password, or both of them.

Supervisor Password: able to enter/change the options of setup menus.

User Password: able to enter but no right to change the options of setup menus.

Type the password, up to eight characters in length, and press <Enter>. The password typed now will clear any previously entered password from CMOS memory. You will be asked to confirm the password. Type the password again and press <Enter>. You may also press <Esc> to abort the selection and not enter a password. To disable a password, just press <Enter> when you are prompted to enter the password. A message will confirm the password will be disabled. Once the password is disabled, the system will boot and you can enter Setup freely.


User’s Manual

PASSWORD DISABLED.

When a password has been enabled, you will be prompted to enter it every time you try to enter Setup. This prevents an unauthorized person from changing any part of your system configuration. Additionally, when a password is enabled, you can also require the BIOS to request a password every time your system is rebooted. This would prevent unauthorized use of your computer. You determine when the password is required within the BIOS

Features Setup Menu and its Security option (see Section 3). If the Security option is set to

“System”, the password will be required both at boot and at entry to Setup. If set to “Setup”, prompting only occurs when trying to enter Setup

3.5.12 Save & Exit Setup

Save CMOS value changes to CMOS and exit setup.

Enter <Y> to store the selection made in the menus in CMOS, a special section in memory that stays on after turning the system off. The BIOS configures the system according to the

Setup selection stored in CMOS when boot the computer next time.

The system is restarted after saving the values.


AIMB-251 Series

3.5.13 Exit Without Save

Abandon all CMOS value changes and exit setup, and the system is restarted after exiting.


User’s Manual

4 Drivers Installation

Note

: Installation procedures and screen shots in this section are for your reference and may not be exactly the same as shown on your screen.


AIMB-251 Series

4.1 Install Driver

Step 1

Insert the Supporting CD-ROM to CD-ROM drive, and it should show the index page of Advantech’s products automatically.

Step 2.

Click AIMB-251

Step 3.

Click on the driver you wan to install


User’s Manual

5 Mechanical

Drawing


AIMB-251 Series


Unit: mm

User’s Manual

Appendix A:

AWARD BIOS POST

Messages


AIMB-251 Series

Overview

During the Power On Self-Test (POST), if the BIOS detects an error requiring you to do something to fix, it will either sound a beep code or display a message.

If a message is displayed, it will be accompanied by:

PRESS F1 TO CONTINUE, CTRL-ALT-ESC OR DEL TO ENTER SETUP

Post Beep

Currently there are two kinds of beep codes in BIOS. This code indicates that a video error has occurred and the BIOS cannot initialize the video screen to display any additional information. This beep code consists of a single long beep followed by two short beeps.

The other code indicates that your DRAM error has occurred. This beep code consists of a single long beep repeatedly.

Error Messages

One or more of the following messages may be displayed if the BIOS detects an error during the POST. This list includes messages for both the ISA and the EISA BIOS.

1. CMOS BATTERY HAS FAILED

CMOS battery is no longer functional. It should be replaced.

2. CMOS CHECKSUM ERROR

Checksum of CMOS is incorrect. This can indicate that CMOS has become corrupt. This error may have been caused by a weak battery. Check the battery and replace if necessary.

3. DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER

No boot device was found. This could mean that either a boot drive was not detected or the drive does not contain proper system boot files. Insert a system disk into Drive A: and press <Enter>. If you assumed the system would boot from the hard drive, make sure the controller is inserted correctly and all cables are properly attached. Also be sure the disk is formatted as a boot device. Then reboot the system.

4. DISKETTE DRIVES OR TYPES MISMATCH ERROR - RUN SETUP

Type of diskette drive installed in the system is different from the CMOS definition. Run

Setup to reconfigure the drive type correctly.


User’s Manual

5. DISPLAY SWITCH IS SET INCORRECTLY

Display switch on the motherboard can be set to either monochrome or color. This indicates the switch is set to a different setting than indicated in Setup. Determine which setting is correct, and then either turn off the system and change the jumper, or enter Setup and change the VIDEO selection.

6. DISPLAY TYPE HAS CHANGED SINCE LAST BOOT

Since last powering off the system, the display adapter has been changed. You must configure the system for the new display type.

PLEASE RUN EISA CONFIGURATION UTILITY

The EISA non-volatile RAM checksum is incorrect or cannot correctly read the EISA slot.

This can indicate either the EISA non-volatile memory has become corrupt or the slot has been configured incorrectly. Also be sure the card is installed firmly in the slot.

8. EISA Configuration Is Not Complete


The slot configuration information stored in the EISA non-volatile memory is incomplete.

Note: When either of these errors appears, the system will boot in ISA mode, which allows you to run the EISA Configuration Utility.

9. ERROR ENCOUNTERED INITIALIZING HARD DRIVE

Hard drive cannot be initialized. Be sure the adapter is installed correctly and all cables are correctly and firmly attached. Also be sure the correct hard drive type is selected in Setup.

10. ERROR INITIALIZING HARD DISK CONTROLLER

Cannot initialize controller. Make sure the cord is correctly and firmly installed in the bus.

Be sure the correct hard drive type is selected in Setup. Also check to see if any jumper needs to be set correctly on the hard drive.

11. FLOPPY DISK CNTRLR ERROR OR NO CNTRLR PRESENT

Cannot find or initialize the floppy drive controller. Make sure the controller is installed correctly and firmly. If there are no floppy drives installed, be sure the Diskette Drive selection in Setup is set to NONE.


AIMB-251 Series

12. Invalid EISA Configuration


The non-volatile memory containing EISA configuration information was programmed incorrectly or has become corrupt. Re-run EISA configuration utility to correctly program the memory.


13. KEYBOARD ERROR OR NO KEYBOARD PRESENT

Cannot initialize the keyboard. Make sure the keyboard is attached correctly and no keys are being pressed during the boot.

If you are purposely configuring the system without a keyboard, set the error halt condition in Setup to HALT ON ALL, BUT KEYBOARD. This will cause the BIOS to ignore the missing keyboard and continue the boot.

14. Memory Address Error at ...

Indicates a memory address error at a specific location. You can use this location along with the memory map for your system to find and replace the bad memory chips.

15. Memory parity Error at ...

Indicates a memory parity error at a specific location. You can use this location along with the memory map for your system to find and replace the bad memory chips.

16. MEMORY SIZE HAS CHANGED SINCE LAST BOOT

Memory has been added or removed since the last boot. In EISA mode use Configuration

Utility to reconfigure the memory configuration. In ISA mode enter Setup and enter the new memory size in the memory fields.

17. Memory Verify Error at ...

Indicates an error verifying a value already written to memory. Use the location along with your system's memory map to locate the bad chip.

18. OFFENDING ADDRESS NOT FOUND

This message is used in conjunction with the I/O CHANNEL CHECK and RAM PARITY

ERROR messages when the segment that has caused the problem cannot be isolated.

19. OFFENDING SEGMENT:

This message is used in conjunction with the I/O CHANNEL CHECK and RAM PARITY

ERROR messages when the segment that has caused the problem has been isolated.


User’s Manual

20. PRESS A KEY TO REBOOT

This will be displayed at the bottom screen when an error occurs that requires you to reboot.

Press any key and the system will reboot.

21. PRESS F1 TO DISABLE NMI, F2 TO REBOOT

When BIOS detects a Non-maskable Interrupt condition during boot, this will allow you to disable the NMI and continue to boot, or you can reboot the system with the NMI enabled.

22. RAM PARITY ERROR - CHECKING FOR SEGMENT ...

Indicates a parity error in Random Access Memory.

23. Should Be Empty But EISA Board Found


A valid board ID was found in a slot that was configured as having no board ID.


24. Should Have EISA Board But Not Found


The board installed is not responding to the ID request, or no board ID has been found in the indicated slot.


25. Slot Not Empty

Indicates that a slot designated as empty by the EISA Configuration Utility actually contains a board.


26. SYSTEM HALTED, (CTRL-ALT-DEL) TO REBOOT ...

Indicates the present boot attempt has been aborted and the system must be rebooted.

Press and hold down the CTRL and ALT keys and press DEL.


AIMB-251 Series

27. Wrong Board In Slot


The board ID does not match the ID stored in the EISA non-volatile memory.


28. FLOPPY DISK(S) fail (80)

→ Unable to reset floppy subsystem.

29. FLOPPY DISK(S) fail (40)

→ Floppy Type dismatch.

30. Hard Disk(s) fail (80)

→ HDD reset failed.


→ HDD controller diagnostics failed.


→ HDD initialization error.


→ Unable to recalibrate fixed disk.


→ Sector Verify failed.

35. Keyboard is locked out - Unlock the key.

BIOS detect the keyboard is locked. P17 of keyboard controller is pulled low.

36. Keyboard error or no keyboard present.

Cannot initialize the keyboard. Make sure the keyboard is attached correctly and no keys are being pressed during the boot.

37. Manufacturing POST loop.

System will repeat POST procedure infinitely while the P15 of keyboard controller is pull low. This is also used for M/B burn in test.

38. BIOS ROM checksum error - System halted.

The checksum of ROM address F0000H-FFFFFH is bad.

39. Memory test fail.

BIOS reports the memory test fail if the onboard memory is tested error.


User’s Manual

40. POST Codes

Please take reference to Phoenix-Award website for the latest post codes. http://www.phoenix.com/en/Customer+Services/BIOS/AwardBIOS/Award+Error+Codes.ht

m

40.1 Normal POST Code

Note: EISA POST codes are typically output to port address 300h. ISA POST codes are output to port address 80h.

Code (hex)

C0

C1

C3

Name

Turn Off Chipset and

CPU test

Description

OEM Specific-Cache control cache

Processor Status (1FLAGS) Verification. Tests the following processor status flags: Carry, zero, sign, overflow, the BIOS sets each flag, verifies They are set, then turns each flag off and verifies it is off.

Read/Write/Verify all CPU registers except SS, SP, and BP with data pattern FF and 00. RAM must be periodically refreshed to keep the memory from decaying. This function ensures that the memory refresh function is working properly.

Memory Presence First block memory detect OEM Specific-Test to size on-board memory. Early chip set initialization Memory presence test OEM chip set routines clear low 64K of memory Test first 64K memory.

Memory OEM Specific- Board Initialization

Initialization

Extend Memory DRAM select

OEM Specific- Turn on extended memory Initialization

Cyrix CPU initialization, Cache initialization

C5

C6

CF

B0

B1

Handling

Early Shadow

Cache presence test

CMOS Check

Spurious

Unclaimed NMI handling display switch errors never occurs

OEM specific- Early shadow enable for fast boot

External cache size detection

CMOS checkup

If interrupt occurs in protected mode.

If unmasked NMI occurs, display Press F1 to disable NMI, F2 reboot.

To program chipset from defaults values

E1- Page 1, E2 - Page 2, etc.

BF

E1-EF

Program Chip Set

Setup Pages

1 Force load Default to chipset

Chipset defaults program

2 Reserved


AIMB-251 Series

Code (hex) Name

3 Early Superio Init

Description

Early Initialized the super IO

4 Reserved

5 Blank video Reset Video controller

6 Reserved

7

8

Init KBC

KB test

Keyboard controller init

Test the Keyboard

9 Reserved

A Mouse Init Initialized the mouse

B Onboard Audio init Onboard audio controller initialize if exist

C Reserved

D Reserved

E CheckSum Check Check the intergraty of the ROM, BIOS and message

F Reserved

10 Auto detec EEPROM Check Flash type and copy flash write/erase routines to 0F000h segments

11 Reserved

12 Cmos Check Check Cmos Circuitry and reset CMOS

13 Reserved

14 Chipset Default load Program the chipset registers with CMOS values

15 Reserved

16 Clock Init Init onboard clock generator

17 Reserved

18 Identify the CPU Check the CPU ID and init L1/L2 cache

19 Reserved

1A Reserved

1B Setup Interrupt Vector

Table

Initialize first 120 interrupt vectors with SPURIOUS_INT_HDLR and initialize INT 00h-1Fh according to INT_TBL

1C Reserved

1D Early PM Init First step initialize if single CPU onboard

1E Reserved

1F Re-initial KB Re-init KB

20 Reserved

21 HPM init If support HPM, HPM get initialized here

22 Reserved

23 Test CMOS Interface and battery Status

Verifies CMOS is working correctly, detects bad battery. If failed, load CMOS defaults and load into chipset

24 Reserved


User’s Manual

Code (hex) Name Description

25 Reserved

26 Reserved

27 KBC final Init Final Initial KBC and setup BIOS data area

28 Reserved

29 Initialize Video Interface Read CMOS location 14h to find out type of video in use. Detect and Initialize Video Adapter.

2A Reserved

2B Reserved

2C Reserved

2D Video memory test Test video memory, write sign-on message to screen. Setup shadow RAM - Enable shadow according to Setup.

2E Reserved

2F Reserved

30 Reserved

31 Reserved

32 Reserved

33 PS2 Mouse setup Setup PS2 Mouse and reset KB

34 Reserved

35 Test DMA Controller 0 Test DMA Controller 0

36 Reserved

37 Test DMA Controller 1 Test DMA Controller 1

38 Reserved

39 Test DMA Page

Registers

Test DMA Page Registers.

3A Reserved

3B Reserved

3C Test Timer Counter 2 Test 8254 Timer 0 Counter 2.

3D Reserved

3E Test 8259-1 Mask Bits Verify 8259 Channel 1 masked interrupts by alternately turning off and on the interrupt lines.

3F Reserved

40 Test 8259-2 Mask Bits Verify 8259 Channel 2 masked interrupts by alternately turning off and on the interrupt lines.

41 Reserved

42 Reserved


AIMB-251 Series

Code (hex) Name

43 Test Stuck 8259's

Interrupt Bits

Test 8259 Interrupt

Functionality

Description

Turn off interrupts then verify no interrupt mask register is on.

Force an interrupt and verify the interrupt occurred.

44 Reserved

45 Reserved

46 Reserved

47 Set EISA Mode If EISA non-volatile memory checksum is good, execute EISA initialization. If not, execute ISA tests an clear EISA mode flag.

48 Reserved

49 Size Base and

Extended Memory

Size base memory from 256K to 640K and extended memory above 1MB.

4A Reserved

4B Reserved

4C Reserved

4D Reserved

4E Test Base and

Extended Memory

Test base memory from 256K to 640K and extended memory above 1MB using various patterns.

NOTE: This test is skipped in EISA mode and can be skipped with ESC key in ISA mode.

4F Reserved

50 USB init Initialize USB controller

51 Reserved

52 Memory Test Test all memory of memory above 1MB using Virtual 8086 mode, page mode and clear the memory

53 Reserved

54 Reserved

55 CPU display Detect CPU speed and display CPU vendor specific version string and turn on all necessary CPU features

56 Reserved

57 PnP Init Display PnP logo and PnP early init

58 Reserved

59 Setup Virus Protect Setup virus protect according to Setup

5A Reserved

5B Awdflash Load If required, will auto load Awdflash.exe in POST

5C Reserved

5D Onboard I/O Init Initializing onboard superIO


User’s Manual


5E Reserved

5F Reserved

60 Setup enable Display setup message and enable setup functions

61 Reserved

62 Reserved

63 Initialize & Install Detect if mouse is present, initialize mouse, install interrupt

Mouse vectors.

64 Reserved

65 PS2 Mouse special Special treatment to PS2 Mouse port

66 Reserved

67 ACPI init ACPI sub-system initializing

68 Reserved

69 Setup Cache Controller Initialize cache controller.

6A Reserved

6B Setup Entering Enter setup check and auto-

6C Reserved configuration check up

6D Initialize Floppy Drive &

Controller

Initialize floppy disk drive controller and any drives.

6E Reserved

6F FDD install Install FDD and setup BIOS data area parameters

70 Reserved

71 Reserved

72 Reserved

73 Initialize Hard Drive &

Controller

Initialize hard drive controller and any drives.

74 Reserved

75 Install HDD IDE device detection and install

76 Reserved

77 Detect & Initialize

Serial/Parallel Port

Initialize any serial and parallel ports (also game port).

78 Reserved

79 Reserved

7A Detect & Initialize Math

Coprocessor

Initialize math coprocessor.

7B Reserved

7C HDD Check for Write protection

HDD check out


AIMB-251 Series


7D Reserved

7E Reserved

7F POST error check Check POST error and display them and ask for user intervention

80 Reserved

81 Reserved

82 Security Check Ask password security (optional).

83

84

Write CMOS

Pre-boot Enable

Write all CMOS values back to RAM and clear screen.

Enable parity checker. Enable NMI, Enable cache before boot.

85 Initialize Option ROMs Initialize any option ROMs present from C8000h to EFFFFh.

NOTE: When FSCAN option is enabled, ROMs initialize from

C8000h to F7FFFh.

86 Reserved

87 Reserved

88 Reserved

89 Reserved

8A Reserved

8B Reserved

8C Reserved

8D Reserved

8E Reserved

8F Reserved

90 Reserved

91 Reserved

92 Reserved

93 Boot Medium detection Read and store boot partition head and cylinders values in RAM

94

95

Final Init

Special KBC patch

96 Boot Attempt

FF Boot

Final init for last micro details before boot

Set system speed for boot. Setup NumLock status according to

Setup

Set low stack Boot via INT 19h.


User’s Manual

40.2 Quick POST Codes

Code (hex)

65

Name

Init onboard device

Description

Early Initialized the super IO. Reset Video controller. Keyboard controller init

Test the Keyboard Initialized the mouse Onboard audio controller initialize if exist. Check the intergraty of the ROM, BIOS and message Check Flash type and copy flash write/erase routines to

0F000h segments Check Cmos Circuitry and reset CMOS

Program the chipset registers with CMOS values Init onboard clock generator

66

67

68

69

6A

6B

Early Sytem setup

KBC and CMOS Init

Check the CPU ID and init L1/L2 cache. Initialize first 120 interrupt vectors with SPURIOUS_INT_HDLR and 10 initialize

INT 00h-1Fh according to INT_TBL First step initialize if single

CPU onboard. Re-init KB If support HPM, HPM get initialized here.

Verifies CMOS is working correctly, detects bad battery. If failed, load CMOS defaults and load into chipset. Final Initial KBC and setup BIOS data area.

Video Init Read CMOS location 14h to find out type of video in use. Detect and Initialize Video Adapter. Test video memory, write sign-on message to screen. Setup shadow RAM - Enable shadow according to Setup.

Init 8259 channel 1 and mask IRQ 9

Quick Memory Test

8259 Init

Memory test

CPU Detect and IO init CPU vendor specific version string and turn on all necessary CPU features Display PnP logo and PnP early init Setup virus protect according to Setup. If required, will auto load Awdflash.exe in

POST Initializing onboard superIO

6C Reserved

6D Reserved

6E Reserved

6F Reserved

70 Setup Init Display setup message and enable setup functions Detect if mouse is present, initialize mouse, install interrupt vectors.

Special treatment to PS2 Mouse port ACPI sub-system initializing

71 Setup Cache Controller Initialize cache controller.

AIMB-251 Series

Code (hex)

72

Name

Install FDD

Description

Enter setup check and auto11 configuration check up Initialize floppy disk drive controller and any drives. Install FDD and setup

BIOS data area parameters

73 Install FDD Initialize hard drive controller and any drives. IDE device detection and install Initialize any serial and parallel ports (also game port).

Initialize math coprocessor. 74

75

Detect & Initialize Math

Coprocessor

HDD Check for Write protection

HDD check out

76 Reserved

77 Display POST error Check POST error and display them and ask for user intervention

Ask password security (optional).

78 CMOS and Option

ROM Init

Write all CMOS values back to RAM and clear screen. Enable parity checker Enable NMI, Enable cache before boot. Initialize any option ROMs present from C8000h to EFFFFh.

NOTE: When FSCAN option is enabled, ROMs initialize from

C8000h to F7FFFh.

79 Reserved

7A Reserved

7B Reserved

7C Reserved

7D Boot Medium detection Read and store boot partition head and cylinders values in RAM

7E

7F

80

Final Init

Special KBC patch

Boot Attempt

FF Boot

Final init for last micro details before boot

Set system speed for boot. Setup NumLock status according to

Setup.

Set low stack Boot via INT 19h.


User’s Manual

40.3 S4 POST Codes

67

68

69

Code (hex)

5A

5B

5C

5D

5E

5F

60

61

62

63

64

65

66

Name

Early Chipset Init

Cmos Check

Chipset default Prog

Identify the CPU

Description

Early Initialized the super IO. Reset Video controller. Keyboard controller init. Test the Keyboard Initilized the mouse

Check Cmos Circuitry and reset CMOS

Program the chipset registers with CMOS values. Init onboard clock generator

Check the CPU ID and init L1/L2 cache Initialize first 120 interrupt vectors with SPURIOUS_INT_HDLR and INT 00h-1Fh according to INT_TBL. First step initialize if single CPU Onboard. Re-init KB

If support HPM, HPM get initialized Here.

Setup Interrupt Vector

Table

Initialize first 120 interrupt vectors with SPURIOUS_INT_HDLR and INT 00h-1Fh according to INT_TBL. First step initialize if single CPU Onboard. Re-init KB If support HPM, HPM get initialized here.

Verifies CMOS is working correctly, detects bad battery. If failed, load CMOS defaults and load into chipset.

Test CMOS Interface and Battery status

KBC final Init Final Initial KBC and setup BIOS data area

Initialize Video Interface Read CMOS location 14h to find out type of video in use. Detect and Initialize Video Adapter.

Video memory test

Setup PS2 mouse and test DMA

Test video memory, write sign-on Test video memory, write sign-on message to screen. Setup shadow RAM - Enable shadow according to Setup.

Setup PS2 Mouse and reset KB Test DMA channel 0

Test 8259

Init Boot Device

Test 8259 channel 1 and mask IRQ 9

Detect if mouse is present, initialize mouse, install interrupt vectors. Special treatment to PS2 Mouse port ACPI sub-system initializing Initialize cache controller.

Install Boot Devices

Cache Init

PM init

PM final Init and issue

SMI

Enter setup check and auto-configuration check up Initialize floppy disk drive controller and any drives. Install FDD and setup

BIOS data area Parameters Initialize hard drive controller and any drives. IDE device detection and install

Cache init and USB init

PM initialization

Final init Before resume

AIMB-251 Series

40.4 BootBlock POST Codes

Code (hex) Name

1 Base memory test

5

12

0D

41

FF

KB init

Install interrupt vectors

Init Video

Init FDD

Boot

Description

Clear base memory area (0000:0000--9000:ffffh)

Initialized KBC

Install int. vector (0-77), and initialized 00-1fh to their proper place

Video initializing

Scan floppy and media capacity for onboard superIO

Load boot sector


Advantech AIMB-251 Series User`s manual

Mini-ITX

AIMB-251 Series

Intel® ULV Celeron

600 MHz Mini ITX Motherboard

User’s Manual

FCC Statement

Notice

Copyright Notice

Trademark Acknowledgement

Disclaimer

Life Support Policy

A Message to the Customer

Advantech Customer Services

Technical Support

Product Warranty

Contents

1. Getting Started

1.1 Safety Precautions

1.2 Packing List

1.3 Document Amendment History

\

1.4 Manual Objectives

1.5 System Specifications

1.6 Architecture Overview

2. Hardware

Configuration

2.1 Product Overview

2.2 Installation Procedure

2.3 Jumper and Connector List

Jumpers

Connectors

Connectors

2.4 Setting Jumpers & Connectors

3 BIOS Setup

3.1 Starting Setup

3.2 Using Setup

3.3 Getting Help

3.4 In Case of Problems

3.5 Main Menu

4 Drivers Installation

4.1 Install Driver

5 Mechanical

Drawing

Appendix A:

AWARD BIOS POST

Messages

Overview

Post Beep

Error Messages

Related manuals

AAXA

P1

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AIMB-250F-00B1

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AIMB-240 Series

Global American

3302140

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RS-400-SF

Advantech

RS-100-RT

Advantech

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BCM

MX852E-C1G

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SK-8810

Table of contents