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Pos карта диагностика компьютера

Pos карта диагностика компьютера

1. Введение
2. Общее описание POST карты
3. Алгоритм работы с POST картой
4. Таблица кодов ошибок
5. Описание звуковых сигналов
6. Сброс забытого пароля к BIOS

Введение

Карта называется POST (Power On Self Test — карта самотестирования). Отображает коды ошибок, при невозможности загрузки операционной системы или нет изображения на экране или нет звуков BIOS.

Когда питание подано, BIOS проводит точный тест схемы, памяти, клавиатуры, видеокарты, жёсткого диска, затем анализирует системную конфигурацию. После инициализации базовой системы ввода/вывода идёт загрузка операционной системы.

Диагностическая карта не будет отображать данные в следующих случаях:
1. Карта вставлена в материнскую плату без центрального процессора.
2. Когда горит диод RST LED.

Общее описание POST карты

Описание светящихся диодов:

Светодиод Тип Описание
RUN Мерцание Если светодиод горит, материнская плата включена, не имеет значения какие коды проходят
CLK BUS CLOCK Горит когда питание подано на материнскую плату (обычно без процессора)
BIOS Считывание BIOS Светодиод включается и выключается когда подаётся питание на материнскую плату, при чтении BIOS процессором
IRDY Менеджер готов Светодиод включается и выключается когда есть сообщение
OSC Мигание Загорается когда подано питание на материнскую плату, или если нет то кристалл колебательного контура сломан
FRAME Период кадра Горит всё время. Включается и выключается когда есть сообщение
RST Reset Загорается на пол секунды, когда нажимаете на кнопку включения или сброса. Если горит питание, то стоит проверить RESET (замыкает или сломан).
12V Power Загорается единожды при включении, подаче питания, если не загорается это означает короткое замыкание на материнской плате или нет 12В.
-12V Питание Тоже самое что и «12V»
5V Питание Тоже самое что и «12V»
-5V Питание Тоже самое что и «12V» (-5V только для ISA слота)
3V3 Питание Загорается при подаче питания (только PCI), где есть 3,3В. Если нет на материнской плате дежурного напряжения 3,3В — не загорается

Алгоритм работы с POST картой

Таблица кодов ошибок

Код Award AMI Phoenix4.0 / Tendy3000
00 Code copying to specific areas is done/Passing control to INT 19h boot loader next.
01 Processor Test 1, Processor status (1FLAGS) verification. Test the following processor status flags: carry, zero, sign, overflow. The BIOS sets each flag, verifies they are set, then turns each flag off and verifies it is off. CPU is testing the register inside or failed, please change the CPU and check it.
02 Test All CPU Registers Except SS, SP, and BP with Data FF and 00 Verify Real Mode
03 Disable NMI, PIE, AIE, UEI, SQWV Disable video, parity checking, DMA Reset math coprocessor Clear all page registers, CMOS shutdown byte Initialize timer 0, 1, and2, including set EISA timer to a known state Initialize DMA controllers 0 and 1 Initialize interrupt controllers 0 and 1 Initialize EISA extended registers Disable NMI, PIE, AIE, UEI, SQThe NMI is disabled. Next, checking for a soft reset or a power on condition Disable Non-Mask-able interrupt (NMI)
04 RAM must be periodically refreshed to keep the memory from decaying. This refresh function is working properly Get CPU type
05 Keyboard Controller initialization The BIOS stack has been built. Next, disabling cache mamory. DMA initialization in progress or failure
06 Reserved Uncompressing the POST code next. Initialized system hardware
07 Verifies CMOS is Working Correctly, Detects Bad Battery Next, initializing the CPU data area Disable shadow and execute code from the ROM
08 Early chip set initialization Memory presence test OEM chip set routines Clear low 64K memory Test first 64K memory The CMOS checksum calculation is Initialize chipset with with initial POST values
09 Cyrix CPU initialization Cach initialization Set IN POST flag
0A Initialize first 120 interrupt vectors with SPURIOUS-INT-HDLR and initialize INT 00h-1Fh according to INT-TBL The CMOS checksum calculation is done. Linitializing the CMOS status register for date and time next Initialize CPU registers
0B Test CMOS RAM Checksum. If bad, or INS Key Pressed, Load Defaults The CMOS status register is initialized. Next. Performing any requirect initialization before the keyboard BAT command is issued Enable CPU cach
0C Detect Type of Keyboard Controller and Set NUM LOCK Status The keyboard controller input butter is free Next, issuing the BAT command to the keyboard controller Initialize caches to initial POST values
0D Detect CPU Clock Read CMOS location 14h to find out type of video in use Detect and initialize video adapter
0E Test Video Memory, write sign-on message to screen Setup shadow RAM? Enable shadew according to setup The keyboard controller BAT command result has been verified. Next, performing any necessary initialization after the keyboard controller BAT command test Initialize I/O component
0F Test DMA Cont. 0; BIOS Checksum Test Keyboard Detect and initialization The initialization after the keyboard controller BAT command test is done. The keyboard command byte is written next Initialization the local bus IDE
10 Test DMA Controller 1 Test DMA The keyboard controller command byte is written. Next, issuing the Pin 23 and 24 Blocking and unblocking command Initialize Power Management
11 Test DMA Page Registers Next, checking if «End» or «Ins» keys were pressed during power on. Initializing CMOS RAM in every boot AMIBIOS POST option was set in AMIBCP or the «End» key was pressed Load alternate registers with initial POST values
12 Reserved Next, disabling DMA controllers 1 and 2 and interrupt controllers 1 and 2 Restore CPU control word during warm boot
13 Reserved The video display has been disabled. Port B has been initialized. Next, initializing the chipset initialize PCI Bus Mastering devices
14 Test 8254 Timer 0 Counter 2 The 8254 timer test will begin next Initialize keyboard controller
15 Verify 8259 Channel 1 interrupts by Turning Off and On the interrupt Lines
16 Verify 8259 Channel 2 interrupts by Turning Off and On the interrupt Lines BIOS ROM checksum
17 Turn Off interrupts Then Verify No Interrupt Msk Register is On Initialize cach before memory Auto size
18 Force an interrupt and Verify the interrupt and Verify the interrupt Occurred 8254 timer initialization
19 Test Stuck NMI Bits; Verify NMI Can Be Cieared The 8254 timer test is over. Starting the memory refresh test next
1A Display CPU clock The memory refresh line is toggling. Checking the 15 second on/off time next 8237 DMA controller initialization
1B Reserved
1C Reserved Reset Programmable interrupt Controller
1D Reserved
1E Reserved
1F If EISA non-volatile memory checksum is good, execute EISA initialization If not, execute ISA tests an clear EISA mode flag Test EISA configuration memory Integrity (checksum & communication interface)
20 Initialize Slot O (System Board) Test DRAM refresh
21 Initialize Slot 1
22 Initialize Slot 2 Test 8742 Keyboard Controller
23 Initialize Slot 3 Reading the 8042 input port and disabling the MEGAKEY Green PC feature next. Making the BIOS code segment writable and performing any necessary configuration before initializing the interrupt vectors
24 Initialize Slot 4 The configuration required before interrupt vector initialization has completed. Interrupt vector initialization is about to begin Set ES segment register to 4Gb
25 Initialize Slot 5 Interrupt vector initialization is done. Clearing the password if the POST DIAG awitch is on
26 1. test the exeptional situation of protected of protected mode, check the memory of cpu and mainboard.
2. no fateful trouble, VGA displayed normally. If nonfateful trouble occurred, then display error message in VGA otherwise boot operating system, and code «26» is OK code, no any other codes to display
1. read/write input, output port of 8042 keyboard; ready for revolve mode, continue to get ready for initialization of all data, check the 8042 chips on mainboard.
2. refere to the left
1. enable A20 adress line, check the A20 pins of memory controlling chips, and check circuit, correlated to pins, in memory slot, may be A20 pin and memory pins are not in contact, or memory A20 pins bad.
2. refere to the left
27 Initialize Slot 7 Any initialization before setting the video mode will be done next
28 Initialize Slot 8 Initialization before setting the video mode is complete. Configuring the monochrome mode and color mode settings next Auto size DRAM
29 Initialize Slot 9 Initialize POST Memory Manager
2A Initialize Slot 10 Initializing the different bus system, static, and output devices, if present Clear 512 KB base RAM
2B Initialize Slot 11 Passing control to the video ROM to perform any required configuration before the video ROM test
2C Initialize Slot 12 All necessary processing before passing control to the video ROM is done. Looking for the video ROM next and passing control to it RAM failure on address line xxx*
2D Initialize Slot 13 The video ROM has returned has returned control to BIOS POST Performing any required processing after the video ROM had control
2E Initialize Slot 14 Completed pest-video ROM test processing. If the EGA/VGA controller is not found, performing the display memory Read/write test next RAM failure on data bits Xxxx* of low byte of memory bus
2F Initialize Slot 15 The EGA/VGA controller was not found. The display memory read/write test is about to begin Enable cach before system BIOS shadow
30 Size Base Memory From 256K to 640K and Extended Memory Above 1MB The display memory read/write test passed. Look for retrace checking next
31 Test Base Memory From 256K to 640K and Extended Memory Above 1MB The display memory read/write test or retrace checking failed. Performing the alternate display memory read/write test next
32 If EISA Mode, Test EISA Memory Found in Slots initialization The alternate display memory read/write test passed. Looking for alternate display retrace checking next Test CPU Bus-clock frequency
33 Reserved Initialize Phoenix Dispatch manager
34 Reserved Video display checking is over. Setting the display mode next
35 Reserved
36 Reserved Warm start and shut down
37 Reserved The display mode is set. Displaying the power on message next
38 Reserved Initializing the bus input, IPL, general device next, if present Shadow system BIOS ROM
39 Reserved Displaying bus initialization error messages
3A Reserved The new cursor position has been read and saved. Displaying the Hit «Del» message next Auto size cach
3B Reserved The Hit «Del» message is displayed. The protected mode memory test is about to start
3C Setup Enabled Advanced configuration of chipset registers
3D Detect if mouse is present, initialize mouse, install interrupt vectors Load alternate registers with CMOS values
3E Initialize cache controller
3F Reserved
40 Display virus protect. Disable or Enable Preparing the descriptor tables next
41 Initialize Floppy Disk Drive Controller and any drives Initialize extended memory for RomPilot
42 Initialize Hard Drive Controller and any drives The descriptor tables are prepared. Enteling protected mode for the memory test next Initialize interrupt vectors
43 Detect and initialize Serial & Parallel Ports and Game Port Entered protected mode. Enabling interrupts for diagnostics mode next
44 Reserved Interrupts enabled if the diagnostics switch is on. Initializing data to check memory wraparound at 0:0 next
45 Detect and initialize math coprocessor Data initialized. Checking for memory wraparound at 0: 0 and finding the total system memory size next POST device initialization
46 Reserved The memory wraparound test is done. Memory size calculation has been done. Writing patterns to tset memory next Check ROM copyright notice
47 Reserved The memory pattern has been to extended memory. Writing patterns to the base 640 KB memory Initialize 120 support
48 Reserved Patterns written in base memory. Determining the amount of memory below 1MB next Check video configuration against CMOS
49 Reserved The amount of memory below 1MB has been found and verified. Determining the amount of memory above 1 MB memory next Initialize PCI bus and devices
4A Reserved Initialize all video adapters in system
4B Reserved The amount of memory above 1MB has been found and verified. Checking for a soft reset and clearing the memory below 1MB for the soft reset next. If this is a power on situation, going to checkpoint 4Eh next QuletBoot start (optional)
4C Reserved The memory below 1MB has been cleared via a soft reset. Clearing the memory above 1MB next Shadow video BIOS ROM
4D Reserved The memory above 1MB has been cleared via a soft reset. Saving the memory size next. Going to checkpoint 52h next
4E Reboot if Manufacturing Mode; if not, Display Messages and Enter Setup The memory test started, but not as the result of a soft reset. Displaying the first 64KB memory size next Display BIOS copyright notice
4F Ask Password Security (Optional) The memory size display has started. The display is updated during the memory test. Performing the sequential and random memory test next Initialize MultiBoot
50 Write All CMOS Values Back to RAM and Clear The memory below 1MB has been tested and initialized. Adjusting the displayed memory size fot relocation and shadowing next Display CPU type and speed
51 Enable Parity Checker. Enable NMI, Enable Cache Before Boot The memory size display was adjusted for relocation and shadowing. Testing the memory above 1MB next Initialize EISA board
52 Initialize Option ROMs from C8000h to EFFFFh or if FSCAN Enabled to F7FFFh The memory above 1MB has been tested and initialized. Saving the memory size information next Test keyboard
53 Initialize Time Value in 40h: BIOS Area The memory size information and the CPU registers are saved. Entering real mode next
54 Shutdown was successful. The CPU is in real mode. Disabling the Gate A20 line, parity, and the NMI next Set key click if enabled
55
56 Enable USB devices
57 The A20 address line, parity, and the NMI are disabled. Adjusting the memory size depending on relocation and shadowing next
58 The memory size was adjusted for relocation and shadowing. Clearing the Hit «DEL» message next Test for unexpected interrupts
59 The Hit «DEL» message is cleared. The «WAIT. » message is displayed. Starting the DMA and interrupt controller test next Initialize POST display service
5A Display prompt Press F2 to enter SETUP
5B Disable CPU cache
5C Test RAM betweeb 512 and 640 kB
60 Setup virus protection (boot sector protection) functionality according to setup setting The DMA page register test passed. Performing the DMA Controller 1 base register test next Test extended memory
61 Try to turn on level 2 cach (if L2 cach already turned on in post 3D, this part will be skipped) Sat the boot up speed according to setup setting Last chance for chipset initialization Last chance for power management initialization (Green BIOS Only) Show the system configuration table
62 Setup the NUM lock. According to setup values Programm the NUM lock. Typematic rate & typematic speed according to setup setting The DMA controller 1 base register test passed. Performing the DMA controller 2 base register test next Test extended memory address lines
63 If there is any changes in the hardware configuration. Update the ESCD information (PnP BIOS only) Clear memory that have been used Boot system via INT 19h
64 Jump to UserPatch1
65 The DMA controller 2 base register test passed. Programming DMA controller 1 and 2 next
66 Completed programming DMA controllers 1 and 2 initializing the 8259 interrupt controller next Configure advanced cach registers
67 Completed 8259 interrupt controller initialization Initialize Multi Processor APIC
68 Enable external and CPU caches
69 Setup System Management Mode (SSM) area
6A Display external L2 cach size
6B Load custom defaults (optional)
6C Display shadow-area message
6E Display possible high address for UMB recovery
6F
70 Display error message
71
72 Check for configuration errors
76 Check for keyboard errors
7C Set up hardware interrupt vectors
7D Initialize intelligent System Monitoring
7E Initialize coprocessor if present
7F Extended NMI source enabling is in progress
80 The keyboard test has started. Clearing the output buffer and checking for stuck keys. Issuing the keyboard reset command next Disable onboard Super I/O ports and IRQs
81 A keyboard reset error or stuck key was found. Issuing the keyboard controller interface test command next Late POST device initialization
82 The keyboard controller interface test completed. Writing the command byte and initializing the circular buffer next Detect and install external RS232 ports
83 The command byte was written and global data initialization has completed. Checking for a locked key next Configure non-MCD IDE controllers
84 Locked key checking is over. Checking for a memory size mismatch with CMOS RAM data next Detect and install external parallel ports
85 The memory size check is done. Displaying a soft error and checking for a password or bypassing WINBIOS Setup next Initialize PC-compatible PnP ISA devices
86 The password was checked. Performing any required programming before WINBIOS Setup next Re-initialize onboard I/O ports
87 The programming before WINBIOS Setup has completed Uncompressing the WINBIOS Setup code and executing the AMIBIOS Setup or WINBIOS Setup utility next Configure Motherboard Configurable Devices (optional)
88 Returned from WINBIOS Setup end cleared the screen. Performing any necessary programming after WINBIOS Setup next Initialize BIOS Data Area
89 The programming after WINBIOS Setup has completed. Displaying the power on screen message next Enable Non-Maskable interrupts (NMis)
8A Initialize Extended BIOS Data Area
8B The first screen message has been displayed. The «WAIT. » message is displayed. Performing the PS/2 mouse check and extended BIOS data area allocation check next Test and initialize PS/2 mouse
8C Programming the WINBIOS Setup options next Initialize floppy controller
8D The WINBIOS Setup options are programmed. Resetting the hard disk controller next
8E The hard disk controller has been reset. Configuring the floppy drive controller next
8F Determine number of ATA drives (optional)
90 Initialize hard-disk controllers
91 The floppy drive controller has been configured. Cjnfiguring the hard disk drive controller next Initialize local-bus hard-disk controllers
92 Jump to UserPatch2
93 Build MPTABLE for multi-processor board
95 Initializing bus adaptor ROMs from C8000h through D8000 Install CD ROM for boot
96 Initializing before passing control to the adaptor ROM at C800 Clear huge ES segment register
97 Initialation before the C800 adaptor ROM gains control has completed. The adaptor ROM check is next Fix up Multi Processor table
98 The adaptor ROM had control and now returned control to BIOS POST. Performing any required processing after the option ROM returned controlA Search for option ROMs. One long, two short beeps on checksum failure
99 Any initialization required after the option ROM test has completed. Configuring the timer data area and printer base address next Check for SMART Drive (optional)
9A Set the timer and printer base address. Setting the RS-232 base address next Shadow option ROMs
9B Returned after setting the RS-232 base address. Performing any required initialization before the coprocessor test next
9C Required initialization before the Coprocessor test is over. Initializing the Coprocessor next Set up Power Management
9D Coprocessor initialized Performing any required initialization after the Coprocessor test next Initialize security engine (optional)
9E Initialization after the Coprocessor test is complete. Checking the extended keyboard, keyboard ID, and NumLock key next. Issuing the keyboard ID command next Enable hardware interrupts
9F Determine number of ATA and SCSI drivers
A0 Set time of day
A1 Check key lock
A2 Displaying any soft error next
A3 The soft error display has completed. Setting the keyboard typematic rate next
A4 The keyboard typematic rate is set. Programming the memory wait states next Initialize typematic rate
A5 Memory wait state programming is over. Clearning the screen and enabling parity and the NMI next
A7 NMI and parity enabled. Performing any initialization required before passing control to the adaptor ROM at E000 next
A8 Initialization before passing control to the adaptor ROM at E000h completed. Passing control to the adaptor ROM at E000h next Erase F2 prompt
A9 Returned from adaptor ROM at E000h control. Performing any initialization required after the E000 option ROM had control next
AA Initialization after E000 option ROM control has completed. Displaying the system configuration next Scan for F2 key stroke
AB Uncompressing the DMI data and executing DMI POST initialization next
AC Enter SETUP
AE Clear boot flag
B0 If interrupts Occurs in protected mode The system configuration is displayed Check for errors
B1 If unmasked NMI Occurs. Display Press F1 to Disable NMI, F2 Reboot Copying any code to specific areas Inform RomPilot about the end of POST
B2 POST done prepare to boot operating system
B3
B4 1 One short beep before boot
B5 Terminate Quiet Boot (optional)
B6 Check password (optional)
B7 Initialize ACPI BIOS
B8
B9 Prepare Boot
BA Initialize SMBIOS
BB Initialize PnP Option ROMs
BC Clear parity checkers
BD Display MultiBoot menu
BE Program chipset registers with power on BIOS defaults Clear screen (optional)
BF Program the rest of the chipset’s value according to setup (later setup value program) If auto configuration is anabled, programmed the chipset with predefined values in the MODBINable Auto Table Check virus and backup reminders
C0 Turn off OEM specific cach, shadow Initialize standard devices with default values: DMA controller (8237); Programmable interrupt Controller (8259); Programmable interval Timer (8254); RTC chip Try to boot with INT 19
C1 OEM Specific-Test to size On-Board memory Initialize POST error manager (PEM)
C2 Initialize error logging
C3 Test the first 256K DRAM Expand the compressed codes into temporary DRAM area including the compressed system BIOS & Option ROMs Initialize error display function
C4 Initialize system error handler
C5 OEM Specific-Early Shadow Enable for fast boot PnPnd dual CMOS (optional)
C6 External Cache Size Detection Initialize note dock (optional)
C7 Initialize note dock late
C8 Force check (optional)
C9 Extended checksum (optional)
CA Redirect int 15h to enable remote keyboard
CB Redirect int 13h to Memory Technologies Devices such as ROM, RAM, PCMCIA, and serial disk
CC Redirect int 10h to enable remote serial video
CD Re-map I/O and memory for PCMCIA
CE Initialize digitizer and display message
D0 The NMI is disable. Power on delay is starting. Next, the initialization code checksum will be verified
D1 Initializing the DMA controller, performing the keyboard controller BAT test, starting memory refresh, and entering 4GB flat mode next
D2 Unknown interrupt
D3 Starting memory sizing next
D4 Returning to real mode. Executing any OEM patches and setting the stack next
D5 Passing control to the uncompressed code in shadow RAM at E000: 0000h. The initialization code is copied to segment 0 and control will be transferred to segment 0
D6 Control is in segment 0 Next, checking if «Ctrl» «Home» was pressed and verifying the system BIOS checksum. If either «Ctrl» «Home» was pressed or the system BIOS checksum is bad, next will go to checkpoint code E0h. Otherwise, going to checkpoint code D7h
E0 The onboard floppy controller if available is initialized. Next, beginning the base 512 KB memory test Initialize the chipset
E1 E1 Setup-Page E1 Initializing the interrupt vector table next Initialize the bridge
E2 E2 Setup-Page E2 Initializing the DMA and interrupt controllers next Initialize the CPU
E3 E3 Setup-Page E3 Initialize system timer
E4 E4 Setup-Page E4 Initialize system I/O
E5 E5 Setup-Page E5 Check force recovery boot
E6 E6 Setup-Page E6 Enabling the floppy drive controller and Timer IRQs. Enabling internal cach memory Checksum BIOS ROM
E7 E7 Setup-Page E7 Go to BIOS
E8 E8 Setup-Page E8 Set Huge Segment
E9 E9 Setup-Page E9 Initialize Multi Processor
EA EA Setup-Page EA Initialize OEM special code
EB EB Setup-Page EB Initialize PIC and DMA
EC EC Setup-Page EC Initialize Memory type
ED ED Setup-Page ED Initializing the floppy drive Initialize Memory size
EE EE Setup-Page EE Looking for a floppy diskette in drive A: Reading the first sector of the diskette Shadow boot block
EF EF Setup-Page EF A read error occurred while reading the floppy drive in drive A: System memory test
F0 Next, searching for the AMIBOOT.ROM file in the root directory Initialize interrupt vectors
F1 The AMIBOOT.ROM file is not in the root directory Initialize Run Time Clock
F2 Next, reading and analyzing the floppy diskette FAT to find the clusters occupied by the AMIBOOT.ROM file Initialize video
F3 Next, reading the AMIBOOT.ROM file, cluster by cluster Initialize System Management Manager
F4 The AMIBOOT.ROM file is not the correct size Output one beep
F5 Next, disabling internal cach memory Clear Huge Segment
F6 Boot to mini DOS
F7 Boot to full DOS
FB Next, detecting the type of flash ROM
FC Next, erasing the flash ROM
FD Next, programming the flash ROM
FF Flash ROM programming was successful. Next, restarting the system BIOS
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Описание звуковых сигналов

AMI BIOS Фатальные ошибки

1 beep DRAM Refresh Failure. Try reseating the memory first. If the error still occurs, replace the memory with known good chips.
2 beeps Parity error in first 64K RAM. Try reseating the memory first. If the error still occurs, replace the memory with known good chips
3 beeps Base 64K RAM Failure. Try reseating the memory first. If the error still occurs, replace the memory with known good chips
4 beeps System timer failure
5 beeps Process failure
6 beeps Keyboard controller 8042-Gate A20 Error. Try reseating the keyboard controller chip. If the error still occurs, replace the keyboard chip. If the error persists, check parts of the system relating to the keyboard, e.g. try another keyboard, check to see if the system has a keyboard fuse
7 beeps Processor, Virtual Mode Exception Interrupt Error
8 beeps Display memory Read/Write test failure (non-fatal). Replace the video card or the memory on the video card
9 beeps ROM BIOS Checksum (32KB at F800:0) Failed. It is not likely that this error can be corrected by reseating the chips. Consult the motherboard supplier or an AMI product distributor for replacement part(s)
10 beeps CMOS shutdown register read/write error
11 beeps Cache memory error

AMI BIOS звуковые коды (не фатальные ошибки)

2 short POST Failure-one or more of the hardware tests has failed
1 long 2 short An error was encountered in the video BIOS ROM, or a horizontal retrace failure has been encountered
1 long 3 short Conventional/Extended memory failure
1 long 8 short Display/Retrace test failed

Award BIOS звуковые коды

1 short No error during POST
2 short Any Non-fatal error, enter CMOS SETUP to reset
1 long 1 short RAM or motherboard error
1 long 2 short Video error, cannot initialize screen to display any information
1 long 3 short Keyboard controller error
1 long 9 short Flash RAM/EPROM (which on the motherboard) error. (BIOS error)
long beep Memory bank is not plugged well, or broken
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Phoenix BIOS звуковые коды

Звуковые коды Описание/Что проверять?
1-1-1-3 Verify real mode
1-1-2-1 Get CPU type
1-1-2-3 Initialize system hardware
1-1-3-1 Initialize chipset registers with initial POST values
1-1-3-2 Set in POST flag
1-1-3-3 Initialize CPU registers
1-1-4-1 Initialize cache to mitial POST values
1-1-4-3 Initialize I/O
1-2-1-1 Initialize Power management
1-2-1-2 Load alternate registers with initial POST values
1-2-1-3 Jump to User Patch0
1-2-2-1 Initialize keyboard controller
1-2-2-3 BIOS ROM checksum
1-2-3-1 8254 timer initialization
1-2-3-3 8237 DMA controller initialization
1-2-4-1 Reset programmable interrupt controller
1-3-1-1 Test DRAM refresh
1-3-1-3 Test 8742 keyboard controller
1-3-2-1 Set ES segment to register to 4GB
1-3-3-1 28 Autosize DRAM
1-3-3-3 Clear 512K base RAM
1-3-4-1 Test 512K base address lines
1-3-4-3 Test 512K base memory
1-4-1-3 Test CPU BUS-clock frequency
1-4-2-4 Reinitialize the chipset
1-4-3-1 Shadow system BIOS ROM
1-4-3-2 Reinitialize the cache
1-4-3-3 Autosize cache
1-4-4-1 Configure advanced chipset registers
1-4-4-2 Load alternate registers with CMOS values
2-1-1-1 Set initial CPU speed
2-1-1-3 Initialize interrupt vectors
2-1-2-1 Initialize BIOS interrupts
2-1-2-3 Check ROM copyright notice
2-1-2-4 Initialize manager for PCI options ROMs
2-1-3-1 Check video configuration against CMOS
2-1-3-2 Initialize PCI bus and devices
2-1-3-3 Initialize all video adapters in system
2-1-4-1 Shadow video BIOS ROM
2-1-4-3 Display copyright notice
2-2-1-1 Display CPU typE and speed
2-2-1-3 Test keyboard
2-2-2-1 Set key click if enabled
2-2-2-3 56 enable keyboard
2-2-3-1 Test for unexpected interrupts
2-2-3-3 Display prompt «press F2 to enter SETUP»
2-2-4-1 Test RAM between 512 and 640k
2-3-1-1 Test expanded memory
2-3-1-3 Test expanded memory address lines
2-3-2-1 Jump to user patch1
2-3-2-3 Configure advanced cache registers
2-3-3-1 Enable external and CPU caches
2-3-3-3 Display extemal cache size
2-3-4-1 Display shadow massage
2-3-4-3 Display non-disposable segments
2-4-1-1 Display error massages
2-4-1-3 Check for configuration errors
2-4-2-1 Test real-time clock
2-4-2-3 Check for keyboard errors
2-4-4-1 Set up hardware interrupts vectors
2-4-4-3 Test coprocessor of present
3-1-1-1 Display onboard I/O ports
3-1-1-3 Detect and install external Rs232 ports
3-1-2-1 Detect and install external parallel ports
3-1-2-3 Re-initialize onboard I/O ports
3-1-3-1 Initialize BIOS data area
3-1-3-3 Initialize extended BIOS data area
3-1-4-1 Initialize floppy controller
3-2-1-1 Initialize hard-disk controller
3-2-1-2 Initialize local-bus hard-disk controller
3-2-1-3 Jump to userPatch2
3-2-2-1 Disable A20 address line
3-2-2-3 Clear huge ES segment register
3-2-3-1 Search for option ROMs
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IBM BIOS звуковые коды

Звуковые коды Описание
No beeps No Power, Loose card or short
1 short beep Normal POST, computer is ok
2 short beep POST error, review screen for error code
Continuous beep No power, loose card, or short
Repeating short beep No power, loose card, or short
One long and one short beep Motherboard issue
One long and two short beeps Video (EGA) display circuitry
Three long beeps Keyboard / keyboard card error
One beep, blank or incorrect display Video display circuitry

Сброс забытого пароля к BIOS

AMI AMI Bios310 AMI! SW KILLSMOS
A. M. I 589589 SMOSPWD AMISETUP ami. kez
BIOS ammii AMI SW ami? AMI. KEY
AMI SW amipswd amidecod amiami
PASSWORD LKWPETER BIOSPASS AMIPSWD
PASSWORD HLT biostar ?award djonet
AWARD SW ALFAROME J09F 1EAAh g6PJ
AWARD?SW 256256 j256 admin HELGA-S
AWARE PW 589721 LKWPETER ally HLT
Phoenix BIOS: phoenix Megastar: star
Biostar Biostar: Q54arwms Micron: sldkj754xyzall
Compag: compag Micronies: dn 04rie
CTX international: CTX_123 Packard Bell: bell9
Dell: Dell Shuttle: spacve
Digital Equipment: komprie Siements Nixdorf: SKY FOX
HP Vectra: hewlpack Tinys: tiny
IBM: IBM MBIUO sertafu TMC: BIGO

Сброс пароля BIOS программно.

CMOS ROM может быть сброшен программно, используя командную строку, командой debug (Работает только до Windows 7 версии, в 8-ке не работает).

Сброс Award BIOS пароля:
C:\>debug
-o 70 34 «Enter»
-o 71 34 «Enter»
-q «Enter»
или
C:\>debug
-o 70 11 «Enter»
-o 71 11 «Enter»
-q «Enter»

Сброс AMI BIOS пароля:
C:\>debug
-o 70 16 «Enter»
-o 71 16 «Enter»
-q «Enter»
или
C:\>debug
-o 70 10 «Enter»
-o 71 0 «Enter»
-q «Enter»

Сброс Phoenix BIOS пароля:
C:\>debug
-o 70 ff «Enter»
-o 71 17 «Enter»
-q «Enter»

Как выглядит в командной строке:

Настройки BIOS будут стёрты, так что при следующей загрузки системы, возможно надо будет изменить настройки (например если у Вас очередность запуска дисков другая, то надо переназначить, а то система не загрузится).

Аппаратный сброс CMOS BIOS перемычкой

  • Выключите компьютер полностью от сети
  • Переключите перемычку из положения 1-2, в положение 2-3
  • Включите питание, перезагрузите компьютер
  • Выключите компьютер. Верните перемычку в положени

    Добавлено: 30.6.2016 • : 76709

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