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AIMB-250 Series

6 AIMB-250 Series User’s Manual

Contents

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 855GME and ICH4 ................................................................................................................. 17

1.6.3

Intel 855GME and ICH4 ................................................................................................................. 19

1.6.4

DRAM Interface (Intel 855GME) .................................................................................................... 20

1.6.5

DRAM Interface (Intel 855GME) .................................................................................................... 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

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

2.1

Product Overview

....................................................................................................26

2.2

Installation Procedure

.............................................................................................27

2.2.1

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

2.2.2

Main Memory.................................................................................................................................. 29

2.3

Jumper and Connector List

.....................................................................................31

2.4

Setting Jumpers & Connectors

...............................................................................34

2.4.1

Clear CMOS (JBAT1)..................................................................................................................... 34

2.4.2

COM1 Pin 9 Signal Select (JP1) .................................................................................................... 34

2.4.3

COM1 RS-232/422/485 Select (JP2, JP3)..................................................................................... 35

2.4.4

4/5/8-wire Touch Screen Select (SW1, optional) ........................................................................... 36

2.4.5

ATX Power Connector (ATXPWR1)............................................................................................... 36

2.4.6

CPU Fan Connector (C_FAN1)...................................................................................................... 37

2.4.7

Parallel Port Connector & VGA Connector (CN1).......................................................................... 38

2.4.8

Serial Port 1 Connector in RS-232 Mode (CN1) ............................................................................ 39

2.4.9

Serial Port 1 Connector in RS-422 Mode (CN1) ............................................................................ 40

Содержание AIMB-250F-00B1

Страница 1: ...Mini ITX AIMB 250 Series Intel Pentium M Celeron M Mini ITX Motherboard User s Manual 1st Ed January 2007...

Страница 2: ...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 HARMFU...

Страница 3: ...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 acc...

Страница 4: ...r 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...

Страница 5: ...cement 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 encou...

Страница 6: ...udio 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 Inst...

Страница 7: ...1 53 2 4 24 LVDS Connector JLVDS1 54 2 4 25 Miscellaneous Setting Connector JMISC1 55 2 4 26 TMDS DVI Connector JTMDS1 56 2 4 27 TV Out Connector JTV1 57 2 4 28 USB Connector 2 3 JUSB1 58 2 4 29 USB C...

Страница 8: ...92 12 Invalid EISA Configuration PLEASE RUN EISA CONFIGURATION UTILITY 93 13 KEYBOARD ERROR OR NO KEYBOARD PRESENT 93 14 Memory Address Error at 93 15 Memory parity Error at 93 16 MEMORY SIZE HAS CHAN...

Страница 9: ...ecalibrate fixed disk 95 34 Hard Disk s fail 08 Sector Verify failed 95 35 Keyboard is locked out Unlock the key 95 36 Keyboard error or no keyboard present 95 37 Manufacturing POST loop 95 38 BIOS RO...

Страница 10: ...lectronic 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 fo...

Страница 11: ...User s Manual AIMB 250 User s Manual 11 1 3 Document Amendment History Revision Date Comment 1st Jan 2007 Initial release...

Страница 12: ...arefully before attempting to interface with AIMB 250 series or change the standard configurations Whilst all the necessary information is available in this manual we would recommend that unless you a...

Страница 13: ...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 H W Status Monitor Monitoring system tempera...

Страница 14: ...6 bit LVDS DVI Chrontel CH7009A DVI transmitter up to 135M pixels second TV Out Chrontel CH7009A TV encoder supports both NTSC PAL Supports both S Video and composite video Built in Touch Screen Optio...

Страница 15: ...Power Requirement 5 V 4 45 A 12 V 0 05 A 3 3 V 5 27 A 5 Vsb 0 38 A with Intel Celeron 1 GHz 1 GB SDRAM Power Type AT ATX Operation Temperature 0 60o C 32 140 o F Operating Humidity 0 90 relative humid...

Страница 16: ...es User s Manual 1 6 Architecture Overview 1 6 1 Block Diagram The following block diagram shows the architecture and main components of AIMB 250 The following sections provide detail information abou...

Страница 17: ...e 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...

Страница 18: ...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 encoder...

Страница 19: ...lowing 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 C...

Страница 20: ...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 tha...

Страница 21: ...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 s...

Страница 22: ...ransmit 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 th...

Страница 23: ...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...

Страница 24: ...ut 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 standar...

Страница 25: ...User s Manual AIMB 250 User s Manual 25 2 Hardware Configuration...

Страница 26: ...AIMB 250 Series 26 AIMB 250 Series User s Manual 2 1 Product Overview...

Страница 27: ...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...

Страница 28: ...sink Place the CPU Fan Connector Note Make sure the CPU fan and heat sink assembly and the CPU top surface are in total contact to avoid CPU overheating problem that would cause the system to hang or...

Страница 29: ...ovides one 184 pin DIMM socket to support DDR SDRAM The total maximum memory size is 1GB Make sure to unplug the power supply before adding or removing DIMMs or other system components Failure to do s...

Страница 30: ...orce 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...

Страница 31: ...f 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 nu...

Страница 32: ...m IDE_2 Secondary IDE connector 22 x 2 header pitch 2 0mm JBKL1 LCD inverter connector 5 x 1 wafer pitch 2 0mm JCD1 CD ROM audio input connector 4 x 1 wafer pitch 2 0mm JCOM1 Serial port 2 connector 5...

Страница 33: ...l AIMB 250 User s Manual 33 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 3 x 1 wafer...

Страница 34: ...AIMB 250 Series 34 AIMB 250 Series User s Manual 2 4 Setting Jumpers Connectors 2 4 1 Clear CMOS JBAT1 Default Protect Clear CMOS 2 4 2 COM1 Pin 9 Signal Select JP1 Default Ring 5V 12V...

Страница 35: ...User s Manual AIMB 250 User s Manual 35 2 4 3 COM1 RS 232 422 485 Select JP2 JP3 Default JP2 RS 232 RS 422 RS 485 JP3 RS 232 RS 422 RS 485 JP2 JP3...

Страница 36: ...Touch Screen Select SW1 optional Default Wire BIT1 BIT2 4 8 OFF ON 5 ON OFF 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 GN...

Страница 37: ...User s Manual AIMB 250 User s Manual 37 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...

Страница 38: ...tion VGA Connector CN1 Signal Signal Description HSYNC CRT horizontal synchronisation output VSYNC CRT vertical synchronisation output DCK Display Data Channel Clock Used as clock signal to from monit...

Страница 39: ...eceives serial data from the communication link DTR Data Terminal Ready This signal indicates to the modem or data set that the on board UART is ready to establish a communication link DSR Data Set Re...

Страница 40: ...Mode CN1 Signal Signal Description TxD 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 co...

Страница 41: ...ed 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 d...

Страница 42: ...onnectors CN3 CN4 Port Description RJ 45 Allows connection to a Local Area Network LAN through a network hub USB 2 0 For connecting USB port 0 1 CN4 4 5 CN3 2 4 13 4 5 8 Wire Touch Screen Connector CN...

Страница 43: ...gnal PIN PIN Signal GND 1 2 REDWC GND 3 4 NC GND 5 6 NC GND 7 8 INDEX GND 9 10 MOTSA GND 11 12 DRVSB GND 13 14 DRVSA GND 15 16 MOTEB GND 17 18 DIR GND 19 20 STEP GND 21 22 WDATA GND 23 24 WGATE GND 25...

Страница 44: ...ut signal selects side of the disk in the selected drive DIR Direction of the head step motor An open drain output Logic 1 outward motion Logic 0 inward motion STEP Step output pulses This active low...

Страница 45: ...D PDD7 3 4 PDD8 PDD6 5 6 PDD9 PDD5 7 8 PDD10 PDD4 9 10 PDD11 PDD3 11 12 PDD12 PDD2 13 14 PDD13 PDD1 15 16 PDD14 PDD0 17 18 PDD15 GND 19 20 NC PDREQ 21 22 GND PDIOW 23 24 GND PDIOR 25 26 GND PIORDY 27...

Страница 46: ...11 SDD3 11 12 SDD12 SDD2 13 14 SDD13 SDD1 15 16 SDD14 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...

Страница 47: ...addresses IOW IDE I O Write Each signal is asserted on write accesses to corresponding the IDE port addresses IORDY When deasserted these signals extend the transfer cycle of any host register access...

Страница 48: ...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 De...

Страница 49: ...al 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 19 Serial Port 2 Connector J...

Страница 50: ...es serial data from the communication link DTR Data Terminal Ready This signal indicates to the modem or data set that the on board UART is ready to establish a communication link DSR Data Set Ready T...

Страница 51: ...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 1 Signal Description Digital Input Output Connector JDIO1 Signal Signal Descr...

Страница 52: ...R_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 y 2 4 22 1 Signal Description Front Panel Connecter JFP1 PIN No Description 1 3 Reset SW 2 4 System L...

Страница 53: ...User s Manual 53 2 4 23 IrDA Connector JIR1 Signal PIN 5V 1 NC 2 IRRX 3 GND 4 IRTX 5 2 4 23 1 Signal Description IrDA Connecter JIR1 Signal Signal Description IRRX Infrared Receiver input IRTX Infrar...

Страница 54: ...1 E_Txout1 E_Txout0 24 23 E_Txout1 GND 26 25 GND E_Txout2 28 27 E_Txout3 E_Txout2 30 29 E_Txout3 GND 32 31 GND Txclk 34 33 E_Txclk Txclk 36 35 E_Txclk GND 38 37 GND 12V 40 39 12V 2 4 24 1 Signal Descr...

Страница 55: ...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 Description 1 3 Case open detection 5 7 9 LCD brightness setting VCC JBKL1 pin 4...

Страница 56: ...tputs for data channel 2 red HPDET I Hot Plug Detect internal pull down This input pin determines whether the DVI is connected to a DVI monitor When terminated the monitor is required to apply a volta...

Страница 57: ...rive a 75 ohm doubly terminated load The output can be selected to be S video luminance or green TVCFCC2 Chroma Green Output This pin outputs a selectable video signal The output is designed to drive...

Страница 58: ...channel 2 Clock is transmitted along with the data using NRZI encoding The signalling bit rate is up to 12 Mbs D3 D3 Differential bi directional data signal for USB channel 3 Clock is transmitted alo...

Страница 59: ...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 2 4 31 1 Signal Description System Fan Connector S_F...

Страница 60: ...AIMB 250 Series 60 AIMB 250 Series User s Manual 3 BIOS Setup...

Страница 61: ...e 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...

Страница 62: ...anges PgDn key Decrease the numeric value or make changes key Increase the numeric value or make changes key Decrease the numeric value or make changes F1 key General help only for Status Page Setup M...

Страница 63: ...king 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...

Страница 64: ...ices 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...

Страница 65: ...e system time IDE Primary Master IDE Primary Slave IDE Secondary Master IDE Secondary Slave Options are in 3 5 1 2 Press Enter to enter the sub menu of detailed options Drive A Drive B None 360K 5 25...

Страница 66: ...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 Options Description IDE HDD Auto detection Press Enter Pre...

Страница 67: ...omeone attempt to write data into this area BIOS will show a warning message on screen and alarm beep Item Description Enabled Activates automatically when the system boots up causing a warning messag...

Страница 68: ...logical drive A Disabled No change 3 5 2 7 Book Up Floppy Seek Seeks disk drives during boot up Disabling seeds boot up Item Description Enabled Enable Floppy Seek Disabled Disable Floppy Seek 3 5 2...

Страница 69: ...ion 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 th...

Страница 70: ...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 c...

Страница 71: ...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...

Страница 72: ...ld 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...

Страница 73: ...s 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...

Страница 74: ...e IDE Primary Master UDMA IDE Primary Slave UDMA IDE Secondary Master UDMA IDE Secondary Slave UDMA Auto Disabled Ultra DMA implementation is possible only if your IDE hard drive supports it and the o...

Страница 75: ...User s Manual AIMB 250 User s Manual 75 3 5 4 3 Super IO Device...

Страница 76: ...SPP EPP ECP Normal ECP EPP 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 EPP Mode...

Страница 77: ...ee of power saving and is directly related to the following modes Item Description Min Power Saving Minimum power management HDD Power Down 15 Min Max Power Saving Maximum power management HDD Power D...

Страница 78: ...s 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...

Страница 79: ...d 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 The choi...

Страница 80: ...AIMB 250 Series 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 choice...

Страница 81: ...isable 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 P...

Страница 82: ...s 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 operat...

Страница 83: ...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 an...

Страница 84: ...etermine 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...

Страница 85: ...User s Manual AIMB 250 User s Manual 85 3 5 13 Exit Without Save Abandon all CMOS value changes and exit setup and the system is restarted after exiting...

Страница 86: ...50 Series 86 AIMB 250 Series 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...

Страница 87: ...er s Manual 87 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 250 Step 3 Click on the...

Страница 88: ...AIMB 250 Series 88 AIMB 250 Series User s Manual 5 Mechanical Drawing...

Страница 89: ...User s Manual AIMB 250 User s Manual 89 Unit mm...

Страница 90: ...AIMB 250 Series 90 AIMB 250 Series User s Manual Appendix A AWARD BIOS POST Messages...

Страница 91: ...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 CM...

Страница 92: ...in the slot 8 EISA Configuration Is Not Complete PLEASE RUN EISA CONFIGURATION UTILITY The slot configuration information stored in the EISA non volatile memory is incomplete Note When either of thes...

Страница 93: ...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 th...

Страница 94: ...ote When either of these errors appears the system will boot in ISA mode which allows you to run the EISA Configuration Utility 24 Should Have EISA Board But Not Found PLEASE RUN EISA CONFIGURATION UT...

Страница 95: ...alization error 33 Hard Disk s fail 10 Unable to recalibrate fixed disk 34 Hard Disk s fail 08 Sector Verify failed 35 Keyboard is locked out Unlock the key BIOS detect the keyboard is locked P17 of k...

Страница 96: ...e memory refresh function is working properly C1 Memory Presence First block memory detect OEM Specific Test to size on board memory Early chip set initialization Memory presence test OEM chip set rou...

Страница 97: ...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 Ident...

Страница 98: ...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 Controlle...

Страница 99: ...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...

Страница 100: ...6B Setup Entering Enter setup check and auto configuration check up 6C Reserved 6D Initialize Floppy Drive Controller Initialize floppy disk drive controller and any drives 6E Reserved 6F FDD install...

Страница 101: ...tialize 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...

Страница 102: ...MOS Init 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 68 Video Init Read CMOS location 14h to fi...

Страница 103: ...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...

Страница 104: ...king correctly detects bad battery If failed load CMOS defaults and load into chipset 60 KBC final Init Final Initial KBC and setup BIOS data area 61 Initialize Video Interface Read CMOS location 14h...

Страница 105: ...emory test Clear base memory area 0000 0000 9000 ffffh 5 KB init Initialized KBC 12 Install interrupt vectors Install int vector 0 77 and initialized 00 1fh to their proper place 0D Init Video Video i...

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