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Advantech AIMB-251 Series User Manual

Advantech AIMB-251 Series User Manual

Intel ulv celeron 600 mhz mini itx motherboard
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Mini-ITX
AIMB-251 Series
®
Intel® ULV Celeron
600 MHz Mini ITX Motherboard
User's Manual
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Ed – January 2007

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Summary of Contents for Advantech AIMB-251 Series

  • Page 1 Mini-ITX AIMB-251 Series ® Intel® ULV Celeron 600 MHz Mini ITX Motherboard User’s Manual Ed – January 2007...
  • Page 2 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.
  • Page 3 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.

  • Page 4: Technical Support

    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.

  • Page 5: Product Warranty

    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.

  • Page 6: Table Of Contents

    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 6 AIMB-251 Series User’s Manual...
  • Page 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 User’s Manual 7...
  • Page 8 FLOPPY DISK(S) fail (40) → Floppy Type dismatch..............94 Hard Disk(s) fail (80) → HDD reset failed..................94 Hard Disk(s) fail (40) → HDD controller diagnostics failed............94 Hard Disk(s) fail (20) → HDD initialization error................94 8 AIMB-251 Series User’s Manual...
  • Page 9 Keyboard is locked out - Unlock the key..................94 Keyboard error or no keyboard present..................94 Manufacturing POST loop......................94 BIOS ROM checksum error - System halted................. 94 Memory test fail..........................94 POST Codes ..........................95 AIMB-251 Series User’s Manual 9...

  • Page 10: Getting Started

    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 10 AIMB-251 Series User’s Manual...

  • Page 11: Document Amendment History

    User’s Manual 1.3 Document Amendment History Revision Date Comment Jan. 2007 Initial release AIMB-251 Series User’s Manual 11...

  • Page 12: Manual Objectives

    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.

  • Page 13: System Specifications

    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 IrDA 6 USB 2.0 ports 16-bit General Purpose I/O for DI and DO AIMB-251 Series User’s Manual 13...
  • Page 14 Intel® ICH4 VIA VT1616 supports 5.1 CH Audio AC97 Codec Audio Interface Mic in, Line in, CD Audio in, Line out Ethernet Realtek RTL8110S Gigabit LAN LAN1 LAN2 1000Base-T Gigabit Ethernet compatible: Realtek RTL8110S Ethernet Interface 14 AIMB-251 Series User’s Manual...
  • Page 15 (with Intel Celeron 600 MHz, 1 GB SDRAM) AT/ATX Power Type 0~60 C (32~140 Operation Temperature 0%~90% relative humidity, non-condensing Operating Humidity 6.69" x 6.69" (170 mm x 170 mm) Size ( L x W ) 0.88 lbs (0.4 Kg) Weight AIMB-251 Series User’s Manual 15...

  • Page 16: Architecture Overview

    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. 16 AIMB-251 Series User’s Manual...

  • Page 17: Intel 852Gm And Ich4

    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 User’s Manual 17...
  • Page 18 • 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 18 AIMB-251 Series User’s Manual...

  • Page 19: Intel 852Gm And Ich4

    One 165-MHz, 12-bit, DVO interface for TV-out encoder and DVI (LVDS transmitter • and TMDS transmitter) support I 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 User’s Manual 19...

  • Page 20: Dram Interface (Intel 852Gm)

    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. 20 AIMB-251 Series User’s Manual...

  • Page 21: Ide Interface (Bus Master Capability And Synchronous Dma Mode )

    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 User’s Manual 21...

  • Page 22: Chrontel Ch7009A Tv/Dvi Transmitter

    A high accuracy low jitter phase locked loop is integrated to create outstanding video quality. Support is provided for Macrovision RGB bypass mode which enables driving a VGA CRT with the input data. 22 AIMB-251 Series User’s Manual...

  • Page 23: Ethernet

    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 User’s Manual 23...

  • Page 24: Winbond W83627Hf

    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. 24 AIMB-251 Series User’s Manual...

  • Page 25: Hardware Configuration

    User’s Manual 2. Hardware Configuration AIMB-251 Series User’s Manual 25...

  • Page 26: Product Overview

    AIMB-251 Series 2.1 Product Overview 26 AIMB-251 Series User’s Manual...

  • Page 27: Installation Procedure

    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 2.2.1.3 Removing CPU • The user is not allowed to remove processor. It requires special fixture to do so. • AIMB-251 Series User’s Manual 27...

  • Page 28: Main Memory

    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. 28 AIMB-251 Series User’s Manual...
  • Page 29 (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 User’s Manual 29...

  • Page 30: Jumper And Connector List

    COM1 pin 9 signal select 3 x 2 header, pitch 2.0mm COM1 RS-232/422/485 select 3 x 2 header, pitch 2.0mm JP2, JP3 4 x 3 header, pitch 2.0mm 4/5/8-wire touch screen select (optional) Switch Reserved Switch 30 AIMB-251 Series User’s Manual...
  • Page 31 JTMDS1 TV out connector 3 x 2 header, pitch 2.54mm JTV1 USB connector 2 & 3 5 x 2 header, pitch 2.54mm JUSB1 USB connector 4 & 5 5 x 2 header, pitch 2.54mm JUSB2 AIMB-251 Series User’s Manual 31...
  • Page 32 AIMB-251 Series Connectors Label Function Note PS/2 Keyboard & mouse connector 6-pin Mini-DIN x 2 KB_MS1 Mini PCI slot MPCI1 PCI slot PCI1 3 x 1 wafer, pitch 2.54mm S_FAN1,S_FAN2 System fan connector 1 & 2 32 AIMB-251 Series User’s Manual...

  • Page 33: Setting Jumpers & Connectors

    User’s Manual 2.4 Setting Jumpers & Connectors 2.4.1 Clear CMOS (JBAT1) Protect* Clear CMOS * Default 2.4.2 COM1 Pin 9 Signal Select (JP1) Ring* +12V * Default AIMB-251 Series User’s Manual 33...

  • Page 34: 4/5/8-Wire Touch Screen Select (Sw1, Optional)

    AIMB-251 Series 2.4.3 4/5/8-wire Touch Screen Select (SW1, optional) Wire BIT1 BIT2 * 4, 8 * Default 2.4.4 COM1 RS-232/422/485 Select (JP2, JP3) (JP2) (JP3) RS-232* RS-232* RS-422 RS-422 * Default RS-485 RS-485 34 AIMB-251 Series User’s Manual...

  • Page 35: Atx Power Connector (Atxpwr1)

    User’s Manual 2.4.5 ATX Power Connector (ATXPWR1) Signal Signal +12V VCCSB PWROK PS_ON +3.3V -12V +3.3V +3.3V AIMB-251 Series User’s Manual 35...

  • Page 36: Cpu Fan Connector (C_Fan1)

    AIMB-251 Series 2.4.6 CPU Fan Connector (C_FAN1) Signal +12V 2.4.6.1 Signal Description – CPU Fan Connector (C_FAN1) Signal Signal Description Fan speed monitor 36 AIMB-251 Series User’s Manual...

  • Page 37: Parallel Port Connector & Vga Connector (Cn1)

    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 GREEN impedance. Analog output carrying the blue colour signal to the CRT. For 75 Ω cable BLUE impedance. AIMB-251 Series User’s Manual 37...

  • Page 38: Serial Port 1 Connector In Rs-232 Mode (Cn1)

    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. 38 AIMB-251 Series User’s Manual...

  • Page 39: Serial Port 1 Connector In Rs-422 Mode (Cn1)

    RTS register of the Serial Port 2 is set to LOW. Serial input. This differential signal pair receives serial data from the RxD+/- communication link. Received data is available in Serial Port 2 Receiver Buffer Register. AIMB-251 Series User’s Manual 39...

  • Page 40: Serial Port 1 Connector In Rs-485 Mode (Cn1)

    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. 40 AIMB-251 Series User’s Manual...

  • Page 41: Audio Connector (Cn2)

    1 (CN4), 4, 5 (CN3) 2.4.13 4/5/8-Wire Touch Screen Connector (CN5, optional) 4-Wire 5-Wire 8-Wire Right Sense Left Sense Bottom Sense Sense Top Sense Right Right Excite Left Left Excite Bottom Bottom Excite Top Excite AIMB-251 Series User’s Manual 41...

  • Page 42: Floppy Connector (Flp1)

    AIMB-251 Series 2.4.14 Floppy Connector (FLP1) Signal PIN PIN Signal REDWC INDEX MOTSA DRVSB DRVSA MOTEB STEP WDATA WGATE TK00 RDATA SIDE1 DSKCHG 42 AIMB-251 Series User’s Manual...
  • Page 43 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 DSKCHG removed. AIMB-251 Series User’s Manual 43...

  • Page 44: Primary Ide Connector (Ide_1)

    Primary IDE Connector (IDE_1) Signal PIN PIN Signal RESET# PDD7 PDD8 PDD6 PDD9 PDD5 PDD10 PDD4 PDD11 PDD3 PDD12 PDD2 PDD13 PDD1 PDD14 PDD0 PDD15 PDREQ PDIOW# PDIOR# PIORDY PDDACK# IRQ14 PDA1 PATADET PDA0 PDA2 PDCS1# PDCS3# IDEACTP# 44 AIMB-251 Series User’s Manual...

  • Page 45: Secondary Ide Connector (Ide_2)

    SDD0 SDD15 SDREQ SDIOW# SDIOR# SIORDY SDDACK# IRQ15 SDA1 SATADET SDA0 SDA2 SDCS1# SDCS3# IDEACTP# Due to IDE compatibility issue, do not use CF and IDE device on secondary IDE channel at the same time. AIMB-251 Series User’s Manual 45...
  • Page 46 Signal from hard disk indicating hard disk activity. The signal level depends on the DACT# hard disk type, normally active low. The signal is routed directly to the LED1. PATADET, Primary/Secondary IDE detected. SATADET 46 AIMB-251 Series User’s Manual...

  • Page 47: Lcd Inverter Connector (Jbkl1)

    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) Signal Signal Description Vadj = 0.75V ~ 4.25V (Recommended: 4.7KΩ, >1/16W) ENBKL LCD backlight ON/OFF control signal AIMB-251 Series User’s Manual 47...

  • Page 48: Cd-Rom Audio Input Connector (Jcd1)

    CD-ROM Audio Input Connector (JCD1) Signal CD_L CD_R 2.4.18.1 Signal Description – CD-ROM Audio Input Connector (JCD1) Signal Signal Description CD_R Right CD-IN signal CD_L Left CD-IN signal 2.4.19 Serial Port 2 Connector (JCOM1) Signal Signal 48 AIMB-251 Series User’s Manual...

  • Page 49: Serial Port 3/4 Connector (Jcom2, Jcom3)

    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 User’s Manual 49...

  • Page 50: Digital Input / Output Connector (Jdio1)

    2.4.21.1 Signal Description – Digital Input / Output Connector (JDIO1) Signal Signal Description DI [0:17] Digital Input/Output Data Bit 0 to Bit 17 SMB_CLK Data input for I C input, 5V tolerant SMB_DATA Data input for I C serial input, 5V tolerant 50 AIMB-251 Series User’s Manual...

  • Page 51: Front Panel Connector (Jfp1)

    5, 7 HDD LED 6, 8 Power-On LED 9, 11 Power SW 10, 12 Suspend LED 13, 15 Suspend SW 14, 16 Speaker System LED will be on as long as power supply is connected. AIMB-251 Series User’s Manual 51...

  • Page 52: Irda Connector (Jir1)

    AIMB-251 Series 2.4.23 IrDA Connector (JIR1) Signal IRRX IRTX 2.4.23.1 Signal Description – IrDA Connecter (JIR1) Signal Signal Description IRRX Infrared Receiver input IRTX Infrared Transmitter output 52 AIMB-251 Series User’s Manual...

  • Page 53: Lvds Connector (Jlvds1)

    C interface for panel parameter EEPROM. This EERPOM is mounted on the C_DAT, I C_CLK 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 User’s Manual 53...

  • Page 54: Miscellaneous Setting Connector (Jmisc1)

    Description 1, 3 Case open detection LCD brightness setting JMISC1 5, 7, 9 JBKL1 pin 4 Variation Resistor (Recommended: 4.7KΩ, >1/16W) 2, 4 Thermal detection 6, 8, 10 CF Master/Slave setting 8-10 short (default: Master) 54 AIMB-251 Series User’s Manual...

  • Page 55: Tmds Dvi Connector (Jtmds1)

    (i.e. primary digital monitor). This signal is tri-stated during a hard reset. DVI Clock Outputs: These pins provide the differential clock outputs TLC, TLC# for the DVI interface corresponding to data on TDC (0:2) outputs. AIMB-251 Series User’s Manual 55...

  • Page 56: Tv Out Connector (Jtv1)

    Composite Video / Blue Output. Chroma / Green Output. This pin outputs a TVCVB 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. 56 AIMB-251 Series User’s Manual...

  • Page 57: Usb Connector 2 & 3 (Jusb1)

    NRZI encoding. The signalling bit rate is up to 12 Mbs. Differential bi-directional data signal for USB channel 5. Clock is transmitted along D5+/D5- with the data using NRZI encoding. The signalling bit rate is up to 12 Mbs. AIMB-251 Series User’s Manual 57...

  • Page 58: Ps/2 Keyboard & Mouse Connector (Kb_Ms1)

    PS/2 Mouse connector Keyboard PS/2 Keyboard connector Keyboard 2.4.31 System Fan Connector 1 & 2 (S_FAN1, S_FAN2) Signal +12V S_FAN1 S_FAN2 2.4.31.1 Signal Description – System Fan Connector (S_FAN1, S_FAN2) Signal Signal Description Fan speed monitor 58 AIMB-251 Series User’s Manual...

  • Page 59: Bios Setup

    User’s Manual 3 BIOS Setup AIMB-251 Series User’s Manual 59...

  • Page 60: Starting Setup

    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 60 AIMB-251 Series User’s Manual...

  • Page 61: Using Setup

    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 User’s Manual 61...

  • Page 62: Getting Help

    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. 62 AIMB-251 Series User’s Manual...

  • Page 63: Main Menu

    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 User’s Manual 63...

  • Page 64: Standard Cmos Features

    Halt On All, but Keyboard to stop the POST process and notify you All, but Diskette All, but Disk/Key LFP (LVDS) CRT+LFP(LVDS) Select Display Device that the screen will be Boot Display EFP(PANEL-LINK) shown CRT+EFP 64 AIMB-251 Series User’s Manual...
  • Page 65 **** Warning: Setting a value of 65535 Precomp Max = 65535 means no hard disk Min = 0 Landing zone **** Max = 65535 Min = 0 Sector Number of sectors per track Max = 255 AIMB-251 Series User’s Manual 65...

  • Page 66: Advanced Bios Features

    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 Description Enabled Enable quick POST Disabled Normal POST 66 AIMB-251 Series User’s Manual...
  • Page 67 Item Description Enabled Enable typematic rate/delay setting Disabled Disable typematic rate/delay setting 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 User’s Manual 67...
  • Page 68 Full Screen Logo show is disabled 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 Description Enabled EPA Logo show is enabled Disabled EPA Logo show is disabled 68 AIMB-251 Series User’s Manual...

  • Page 69: Advanced Chipset Features

    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. 3.5.3.3 Active to Precharge Delay This item is the minimum delay time between Active and Precharge The choices: 5, 6, 7. AIMB-251 Series User’s Manual 69...
  • Page 70 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. 70 AIMB-251 Series User’s Manual...
  • Page 71 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 User’s Manual 71...

  • Page 72: Integrated Peripherals

    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. 72 AIMB-251 Series User’s Manual...
  • Page 73 This item allows you to set the system’s USB USB Mouse Support Disabled Mouse to Enabled/Disabled. Auto This item allows you to decide to Auto/disable AC97 Audio Disabled the Codec chip to support AC97 Audio. AIMB-251 Series User’s Manual 73...
  • Page 74 AIMB-251 Series 3.5.4.3 Super IO Device 74 AIMB-251 Series User’s Manual...
  • Page 75 Serial Port 3 Mode Normal Select an IO address for the third serial ports IRDA 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 User’s Manual 75...

  • Page 76: Power Management Setup

    3.5.5.5 Video Off In Suspend This determines the manner in which the monitor is blanked. The choice: No, Yes. 3.5.5.6 Suspend Type This function allows to select Suspend type. The choices: Stop Grant, PwrOn Suspend. 76 AIMB-251 Series User’s Manual...
  • Page 77 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. The choices: Enabled, Disabled. AIMB-251 Series User’s Manual 77...

  • Page 78: Pnp / Pci Configuration

    “manual” choose specific resources by going into each of the sub menu that follows this field (a sub menu is preceded by a “ ”). The choices: Auto(ESCD), Manual. 3.5.6.3 PCI / VGA Palette Snoop Leave this field at Disabled. The choices: Enabled, Disabled. 78 AIMB-251 Series User’s Manual...

  • Page 79: Pc Health Status

    User’s Manual 3.5.7 PC Health Status This section shows the status of your CPU, Fan & System. 3.5.7.1 Case Open Warning This item allows to enable the case open warning function. The choices: Enabled, Disabled. AIMB-251 Series User’s Manual 79...

  • Page 80: Frequency / Voltage Control

    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. 80 AIMB-251 Series User’s Manual...

  • Page 81: Load Fail-Safe Defaults

    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 User’s Manual 81...

  • Page 82: Set Supervisor / User Password

    <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. 82 AIMB-251 Series User’s Manual...

  • Page 83: Save & Exit Setup

    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 User’s Manual 83...

  • Page 84: Exit Without Save

    AIMB-251 Series 3.5.13 Exit Without Save Abandon all CMOS value changes and exit setup, and the system is restarted after exiting. 84 AIMB-251 Series User’s Manual...

  • Page 85: Drivers Installation

    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 User’s Manual 85...

  • Page 86: Install Driver

    4.1 Install Driver Step 1 Step 2. Click AIMB-251 Insert the Supporting CD-ROM to CD-ROM drive, and it should show the index page of Advantech’s products automatically. Step 3. Click on the driver you wan to install 86 AIMB-251 Series User’s Manual...

  • Page 87: Mechanical Drawing

    User’s Manual 5 Mechanical Drawing AIMB-251 Series User’s Manual 87...
  • Page 88 AIMB-251 Series Unit: mm 88 AIMB-251 Series User’s Manual...

  • Page 89: Appendix A: Award Bios Post Messages

    User’s Manual Appendix A: AWARD BIOS POST Messages AIMB-251 Series User’s Manual 89...

  • Page 90: Overview

    Then reboot the system. 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. 90 AIMB-251 Series User’s Manual...

  • Page 91: Display Switch Is Set Incorrectly

    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 User’s Manual 91...

  • Page 92: Invalid Eisa Configuration Please Run Eisa Configuration Utility

    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. 92 AIMB-251 Series User’s Manual...

  • Page 93: Press A Key To Reboot

    EISA Configuration Utility. 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 User’s Manual 93...

  • Page 94: Wrong Board In Slot Please Run Eisa Configuration Utility

    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. 94 AIMB-251 Series User’s Manual...

  • Page 95: Post Codes

    If unmasked NMI occurs, display Press F1 to disable NMI, F2 reboot. Program Chip Set To program chipset from defaults values E1-EF Setup Pages E1- Page 1, E2 - Page 2, etc. Force load Default to Chipset defaults program chipset Reserved AIMB-251 Series User’s Manual 95...
  • Page 96 Reserved HPM init If support HPM, HPM get initialized here Reserved Test CMOS Interface Verifies CMOS is working correctly, detects bad battery. If failed, and battery Status load CMOS defaults and load into chipset Reserved 96 AIMB-251 Series User’s Manual...
  • Page 97 Verify 8259 Channel 1 masked interrupts by alternately turning off and on the interrupt lines. Reserved Test 8259-2 Mask Bits Verify 8259 Channel 2 masked interrupts by alternately turning off and on the interrupt lines. Reserved Reserved AIMB-251 Series User’s Manual 97...
  • Page 98 Display PnP logo and PnP early init Reserved Setup Virus Protect Setup virus protect according to Setup Reserved Awdflash Load If required, will auto load Awdflash.exe in POST Reserved Onboard I/O Init Initializing onboard superIO 98 AIMB-251 Series User’s Manual...
  • Page 99 IDE device detection and install Reserved Detect & Initialize Initialize any serial and parallel ports (also game port). Serial/Parallel Port Reserved Reserved Detect & Initialize Math Initialize math coprocessor. Coprocessor Reserved HDD Check for Write HDD check out protection AIMB-251 Series User’s Manual 99...
  • Page 100 Read and store boot partition head and cylinders values in RAM Final Init Final init for last micro details before boot Special KBC patch Set system speed for boot. Setup NumLock status according to Setup Boot Attempt Set low stack Boot via INT 19h. Boot 100 AIMB-251 Series User’s Manual...
  • Page 101 Reserved 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 Setup Cache Controller Initialize cache controller. AIMB-251 Series User’s Manual 101...
  • Page 102 Read and store boot partition head and cylinders values in RAM Final Init Final init for last micro details before boot Special KBC patch Set system speed for boot. Setup NumLock status according to Setup. Boot Attempt Set low stack Boot via INT 19h. Boot 102 AIMB-251 Series User’s Manual...
  • Page 103 BIOS data area Parameters Initialize hard drive controller and any drives. IDE device detection and install Cache Init Cache init and USB init PM init PM initialization PM final Init and issue Final init Before resume Full on AIMB-251 Series User’s Manual 103...
  • Page 104 KB init Initialized KBC Install interrupt vectors Install int. vector (0-77), and initialized 00-1fh to their proper place Init Video Video initializing Init FDD Scan floppy and media capacity for onboard superIO Boot Load boot sector 104 AIMB-251 Series User’s Manual...

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