Mini-ITX AIMB-251 Series Intel® ULV Celeron® 600 MHz Mini ITX Motherboard User’s Manual 1st 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.
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.
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.
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.
AIMB-251 Series Contents 1. Getting Started..........................................................................................................10 1.1 Safety Precautions ..................................................................................................10 1.2 Packing List.............................................................................................................10 1.3 Document Amendment History ............................................................................
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)..............................................
AIMB-251 Series 3.5.13 Exit Without Save....................................................................................................................... 84 4 Drivers Installation ...................................................................................................85 4.1 Install Driver ............................................................................................................86 5 Mechanical Drawing .......................................................................
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. .....................................................
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.
User’s Manual 1.3 Document Amendment History \ Revision st 1 Date Jan.
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.
User’s Manual 1.5 System Specifications System AIMB-251F-00A1E Model CPU Intel® ULV Celeron 600 MHz 512K L2 cache FSB 400 MHz BIOS Award 512 KB Flash BIOS System Chipset Intel® 852GM GMCH/ICH4 I/O Chip Winbond W83627HF-AW System Memory One 184-pin DIMM socket supports up to 1 GB DDR 266/333 SDRAM SSD One CompactFlash Type I/II socket Watchdog Timer Reset: 1 sec.~255 min. and 1 sec. or 1 min./step Monitoring system temperature, voltage, and cooling fan status.
AIMB-251 Series Display AIMB-251F-00A1E Model Chipset Intel® 852GM GMCH integrated Extreme Graphics 2 controller Display Memory Intel® DVMT 2.
User’s Manual Mechanical & Environmental AIMB-251F-00A1E Model +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 AT/ATX Operation Temperature 0~60o C (32~140 o F) Operating Humidity 0%~90% relative humidity, non-condensing Size ( L x W ) 6.69" x 6.69" (170 mm x 170 mm) Weight 0.88 lbs (0.
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.
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.
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.
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.
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.
AIMB-251 Series 1.6.10 Chrontel CH7009A TV/DVI Transmitter 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.
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.
AIMB-251 Series 1.6.12 Winbond W83627HF 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.
User’s Manual 2.
AIMB-251 Series 2.
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.
AIMB-251 Series 2.2.2 Main Memory 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.
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.
User’s Manual Connectors Label Function Note ATXPWR1 ATX Power connector ATX power connector C_FAN1 CPU fan connector 3 x 1 wafer, pitch 2.54mm CF1 CF card connector CN1 Parallel port connector Serial port 1 connector VGA connector D-sub 25-pin, female D-sub 9-pin, male D-sub 15-pin, female CN2 Audio connector Phone Jack X 3 CN4 RJ-45 Ethernet / USB 0 & 1 connector CN5 4/5/8-wire touch screen connector (option) 9 x 1 wafer, pitch 2.
AIMB-251 Series Connectors Label Function Note KB_MS1 PS/2 Keyboard & mouse connector 6-pin Mini-DIN x 2 MPCI1 Mini PCI slot PCI1 PCI slot S_FAN1,S_FAN2 System fan connector 1 & 2 32 AIMB-251 Series User’s Manual 3 x 1 wafer, pitch 2.
User’s Manual 2.4 Setting Jumpers & Connectors 2.4.1 Clear CMOS (JBAT1) Protect* Clear CMOS z * Default 2.4.
AIMB-251 Series 2.4.3 4/5/8-wire Touch Screen Select (SW1, optional) Wire BIT1 BIT2 * 4, 8 OFF ON 5 ON OFF * Default 2.4.
User’s Manual 2.4.5 ATX Power Connector (ATXPWR1) Signal PIN PIN Signal +12V 10 20 +5V VCCSB 9 19 +5V PWROK 8 18 -5V GND 7 17 GND +5V 6 16 GND GND 5 15 GND +5V 4 14 PS_ON GND 3 13 GND +3.3V 2 12 -12V +3.3V 1 11 +3.
AIMB-251 Series 2.4.6 CPU Fan Connector (C_FAN1) Signal PIN TAC 3 +12V 2 GND 1 2.4.6.
User’s Manual 2.4.7 Parallel Port Connector & VGA Connector (CN1) Port Description Connects a parallel printer, a Parallel scanner, or other devices. VGA COM For pointing devices or other COM serial devices VGA Signal RED PIN Signal 6 GND 1 11 7 GREEN 2 GND 12 8 BLUE 3 13 4 14 5 HSYNC VCC 10 GND DAT GND 9 NC NC VSYNC GND 15 DCK 2.4.7.1 Signal Description – VGA Connector (CN1) Signal Signal Description HSYNC CRT horizontal synchronisation output.
AIMB-251 Series 2.4.8 Serial Port 1 Connector in RS-232 Mode (CN1) Signal PIN PIN Signal DCD 1 2 RxD TxD 3 4 DTR GND 5 6 DSR RTS 7 8 CTS RI/+5V/+12V 9 10 NC 2.4.8.1 Signal Description – Serial Port 1 Connector in RS-232 Mode (CN1) Signal Signal Description Serial output. This signal sends serial data to the communication link. The signal is TxD set to a marking state on hardware reset when the transmitter is empty or when loop mode operation is initiated.
User’s Manual 2.4.9 Serial Port 1 Connector in RS-422 Mode (CN1) Signal PIN PIN Signal TxD- 1 2 RxD+ TxD+ 3 4 RxD- GND 5 6 NC NC 7 8 NC NC 9 10 NC 2.4.9.1 Signal Description – Serial Port 1 Connector in RS-422 Mode (CN1) Signal Signal Description Serial output. This differential signal pair sends serial data to the communication TxD+/- link.
AIMB-251 Series 2.4.10 Serial Port 1 Connector in RS-485 Mode (CN1) Signal PIN PIN Signal DATA- 1 2 NC DATA+ 3 4 NC GND 5 6 NC NC 7 8 NC NC 9 10 NC 2.4.10.1 Signal Description – Serial Port 1 Connector in RS-485 Mode (CN1) Signal Signal Description This differential signal pair sends and receives serial data to the communication DATA+/- link. The mode of this differential signal pair is controlled through the RTS register of Serial Port 2.
User’s Manual 2.4.11 Audio Connector (CN2) Port Audio-In Audio-In Audio-Out Audio-Out Microphone 2.4.12 Description Connects a tape player or other audio sources. Connects a headphone or a speaker. Microphone Connects a microphone. 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 2.4.
AIMB-251 Series 2.4.
User’s Manual 2.4.14.1 Signal Description – Floppy Connector (FLP) Signal RDATA WDATA WGATE MOATSA MOTEB DRVSA DRVSB SIDE1 Signal Description 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.
AIMB-251 Series 2.4.
User’s Manual 2.4.
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 Signal Description 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.
User’s Manual 2.4.17 LCD Inverter Connector (JBKL1) Signal PIN +12V 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) Signal Signal Description VR Vadj = 0.75V ~ 4.25V (Recommended: 4.
AIMB-251 Series 2.4.18 CD-ROM Audio Input Connector (JCD1) Signal PIN CD_L 1 GND 2 GND 3 CD_R 4 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.
User’s Manual 2.4.20 Serial Port 3/4 Connector (JCOM2, JCOM3) JCOM2 JCOM3 Signal PIN PIN Signal DCD 1 2 RxD TxD 3 4 DTR GND 5 6 DSR RTS 7 8 CTS RI 9 10 NC 2.4.20.1 Signal Description – Serial Port 2/3/4 Connector (JCOM1, JCOM2, JCOM3) Signal Signal Description Serial output. This signal sends serial data to the communication link. The signal is TxD set to a marking state on hardware reset when the transmitter is empty or when loop mode operation is initiated.
AIMB-251 Series 2.4.21 Digital Input / Output Connector (JDIO1) Signal PIN PIN Signal DIO0 1 2 DIO10 DIO1 3 4 DIO11 DIO2 5 6 DIO12 DIO3 7 8 DIO13 DIO4 9 10 DIO14 DIO5 11 12 DIO15 DIO6 13 14 DIO16 DIO7 15 16 DIO17 SMB_CLK_S 17 18 SMB_DATA_S GND 19 20 +5V 2.4.21.
User’s Manual 2.4.22 Front Panel Connector (JFP1) Signal PIN PIN Signal RESET 1 2 SYS_LED+ GND 3 4 SYS_LED- HDD_LED+ 5 6 PWR_LED+ HDD_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) PIN No.
AIMB-251 Series 2.4.23 IrDA Connector (JIR1) Signal PIN +5V 1 NC 2 IRRX 3 GND 4 IRTX 5 2.4.23.
User’s Manual 2.4.24 LVDS Connector (JLVDS1) Signal PIN PIN Signal +5V 2 1 +3.3V +5V 4 3 2 +3.
AIMB-251 Series 2.4.25 Miscellaneous Setting Connector (JMISC1) Signal PIN PIN Signal CASEOPEN# 1 2 VTIN3 GND 3 4 THRMDN +5V 5 6 +5V VR 7 8 #MASTER GND 9 10 GND 2.4.25.1 Signal Description – Miscellaneous Setting Connecter (JMISC1) PIN No. 1, 3 Description Case open detection LCD brightness setting VCC JMISC1 5 5, 7, 9 7 JBKL1 pin 4 9 Variation Resistor (Recommended: 4.
User’s Manual 2.4.26 TMDS DVI Connector (JTMDS1) Signal PIN PIN Signal +5V 2 1 TDC0# GND 4 3 TDC0 NC 6 5 NC NC 8 7 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 Type TDC0, TDC0# O TDC1, TDC1# O TDC2, TDC2# O Signal Description DVI Data Channel 0 Outputs: These pins provide the DVI differential outputs for data channel 0 (blue).
AIMB-251 Series 2.4.27 TV Out Connector (JTV1) Signal PIN PIN Signal TVCVB 1 2 GND TVYFCC2 3 4 TVCFCC2 GND 5 6 GND 2.4.27.1 Signal Description – TV Out Connecter (JTV1) Signal Signal Description Luma / Green Output. This pin outputs a selectable video signal. The output is TVYFCC2 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.
User’s Manual 2.4.28 USB Connector 2 & 3 (JUSB1) Signal 2.4.29 PIN PIN Signal +5V 1 2 GND D2- 3 4 GND D2+ 5 6 D3+ GND 7 8 D3- GND 9 10 +5V USB Connector 4 & 5 (JUSB2) Signal PIN PIN Signal +5V 1 2 GND D4- 3 4 GND D4+ 5 6 D5+ GND 7 8 D5- GND 9 10 +5V 2.4.29.1 Signal Description – USB Connecter 2, 3, 4 & 5 (JUSB1, JUSB2) Signal D2+/D2- D3+/D3- D4+/D4- D5+/D5- Signal Description Differential bi-directional data signal for USB channel 2.
AIMB-251 Series 2.4.30 PS/2 Keyboard & Mouse Connector (KB_MS1) Mouse Port Mouse Keyboard 2.4.31 Keyboard Description PS/2 Mouse connector PS/2 Keyboard connector System Fan Connector 1 & 2 (S_FAN1, S_FAN2) Signal PIN TAC 3 +12V 2 GND 1 S_FAN1 S_FAN2 2.4.31.
User’s Manual 3 BIOS Setup AIMB-251 Series User’s Manual 59
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.
User’s Manual 3.2 Using Setup In general, you use the arrow keys to highlight items, press to select, use the PageUp and PageDown keys to change entries, press for help and press to quit. The following table provides more detail about how to navigate in the Setup program using the keyboard.
AIMB-251 Series • To Display a Sub Menu Use the arrow keys to move the cursor to the sub menu you want. Then press . 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 or the F1 key again. 3.
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 to accept and enter the sub-menu. Note that a brief description of each highlighted selection appears at the bottom of the screen.
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 or 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.
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_
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. 3.5.2.1 CPU Feature 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 3.5.2.
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 Floppy LS120 HDD-0~4 SCSI CDROM ZIP100 USB-FDD USB-ZIP USB-CDROM USB-HDD LAN Disabled Description Floppy Device LS120 Device Hard Disk Device 0, 1, 2, 3, 4 SCSI Device CDROM Device ZIP-100 Device USB Floppy Device USB ZIP Device USB CDROM Device USB Hard Disk Device Network Device Disabled any boot device 3.5.2.
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 , it will disable security.
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.
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.
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.
AIMB-251 Series 3.5.4 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.
User’s Manual Item Options On-Chip Primary PCI IDE On-Chip Secondary PCI IDE Enabled Disabled IDE Primary Master PIO IDE Primary Slave PIO IDE Secondary Master PIO IDE Secondary Slave PIO Auto Mode 0 Mode 1 Mode 2 Mode 3 Mode 4 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.
AIMB-251 Series 3.5.4.
User’s Manual Item Options 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. Onboard FDC Controller Enabled Disabled Onboard Serial Port 1 Onboard Serial Port 2 Disable, 3F8/IRQ4 2F8/IRQ3, 3E8/IRQ4 2E8/IRQ3, AUTO Select an address and corresponding interrupt for the first and second serial ports.
AIMB-251 Series 3.5.5 Power Management Setup 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. 3.5.5.1 ACPI Function 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. 3.5.5.
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.
AIMB-251 Series 3.5.6 PnP / PCI Configuration This section describes configuring the PCI bus system. PCI, or Personal Computer Interconnect, 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. 3.5.6.
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 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. The choices: Enable, Disable. 3.5.8.2 Spread Spectrum This item is to adjust extreme values of the pulse for EMI test. The choices: Enable, Disable. 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.
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 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.
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 . 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 .
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.
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 3. Click on the driver you wan to install 86 AIMB-251 Series User’s Manual Step 2.
User’s Manual 5 Mechanical Drawing AIMB-251 Series User’s Manual 87
AIMB-251 Series Unit: mm 88 AIMB-251 Series User’s Manual
User’s Manual Appendix A: AWARD BIOS POST Messages AIMB-251 Series User’s Manual 89
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.
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.
AIMB-251 Series 12. Invalid EISA Configuration PLEASE RUN EISA CONFIGURATION UTILITY 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. Note: When either of these errors appears, the system will boot in ISA mode, which allows you to run the EISA Configuration Utility. 13. KEYBOARD ERROR OR NO KEYBOARD PRESENT Cannot initialize the keyboard.
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.
AIMB-251 Series 27. Wrong Board In Slot PLEASE RUN EISA CONFIGURATION UTILITY The board ID does not match the ID stored in the EISA non-volatile memory. Note: When either of these errors appears, the system will boot in ISA mode, which allows you to run the EISA Configuration Utility. 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. 31.
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) Name Description C0 Turn Off Chipset and OEM Specific-Cache control cache CPU test Processor Status (1FLAGS) Verification.
AIMB-251 Series Code (hex) Name Description 3 Early Superio Init Early Initialized the super IO 4 Reserved 5 Blank video 6 Reserved 7 Init KBC Keyboard controller init 8 KB test 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 F Reserved 10 Auto detec EEPROM Reset Video controller Check the intergraty of the ROM, BIOS and message Check Flash type and c
User’s Manual Code (hex) Name 25 Reserved 26 Reserved 27 KBC final Init 28 Reserved 29 Initialize Video Interface Description Final Initial KBC and setup BIOS data area 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.
AIMB-251 Series Code (hex) Name Description 43 Test Stuck 8259's Turn off interrupts then verify no interrupt mask register is on. Interrupt Bits Test 8259 Interrupt Force an interrupt and verify the interrupt occurred. Functionality 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.
User’s Manual Code (hex) Name 5E Reserved 5F Reserved 60 Setup enable 61 Reserved 62 Reserved 63 Initialize & Install Detect if mouse is present, initialize mouse, install interrupt Mouse vectors.
AIMB-251 Series Code (hex) Name Description 7D Reserved 7E Reserved 7F POST error check 80 Reserved 81 Reserved 82 Security Check Ask password security (optional). 83 Write CMOS Write all CMOS values back to RAM and clear screen. 84 Pre-boot Enable Enable parity checker. Enable NMI, Enable cache before boot. 85 Initialize Option ROMs Initialize any option ROMs present from C8000h to EFFFFh.
User’s Manual 40.2 Quick POST Codes Code (hex) Name Description 65 Init onboard device Early Initialized the super IO. Reset Video controller. Keyboard controller init Test the Keyboard Initialized the mouse Onboard audio controller initialize if exist.
AIMB-251 Series Code (hex) Name Description 72 Install FDD 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). 74 Detect & Initialize Math Initialize math coprocessor.
User’s Manual 40.3 S4 POST Codes Code (hex) Name Description 5A Early Chipset Init Early Initialized the super IO. Reset Video controller. Keyboard controller init. Test the Keyboard Initilized the mouse 5B Cmos Check Check Cmos Circuitry and reset CMOS 5C Chipset default Prog Program the chipset registers with CMOS values.
AIMB-251 Series 40.4 BootBlock POST Codes Code (hex) Name Description 1 Base memory test Clear base memory area (0000:0000--9000:ffffh) 5 KB init Initialized KBC 12 Install interrupt vectors Install int.
