Códigos de Bipe

[kamuz]

Quando o computador é ligado, ele inicia o que é chamado de rotina POST (Power-on selft test). Isto é uma procedimento curto de diagnóstico incorporado na sequência de boot pela produtora da BIOS para fins de verificação de erros e notificações.

Muitas vezes quando há um erro na rotina de boot você receberá uma mensagem de erro na tela, ou seja, foi mostrado pela placa de vídeo. Mas, em alguns casos, o erro é detectado previamente no processo de boot e não pode ser apresentado pela placa de vídeo. O erro pode até mesmo ser causado pela placa de vídeo ou o monitor. Por isso se fizeram necessários os códigos de bipe de erro.

Abaixo uma lista de alguns códigos por produtora de BIOS:

AMI (American Megatrends') BIOS

Beep Codes Message

one short DRAM refresh failure (Problem with memory)

two short Parity circuit failure

three short Base 64K RAM failure

four short System Timer failure

five short Processor failure

six short Keyboard Controller / Gate A20 failure

seven short Virtual Mode Exception error

eight short Display Memory Read/Write failure (fault with video card)

nine short ROM BIOS Checksum error (fault with BIOS chip)

ten short CMOS Shutdown Read/Write error

eleven short Cache memory

one long Passed (no errors)

one long, two short Video failure

one long, three short Base / Extended Memory failure

one long, eight short Display / Retrace Test failure

AST Research BIOS

Beep Codes Message

one short Low level processor verification test failed (POST 1)

two short Clearing keyboard controller buffers failed (POST 2)

three short Keyboard controller reset failed (POST 3)

four short Low level keyboard controller interface test (POST 4)

five short Reading data from keyboard controller failed (POST 5)

six short System board support chip initialization failed (POST 6)

seven short Processor register read/write verify test failed (POST 7)

eight short CMOS timer initialization failed (POST 8)

nine short ROM BIOS checksum test failed (POST 9)

ten short Initialize primary video (POST 10)

eleven short 8254 timer channel 0 test failed (POST 11)

twelve short 8254 timer channel 1 test failed (POST 12)

thirteen short 8254 timer channel 2 test failed (POST 13)

fourteen short CMOS power-on and time test failed (POST 14)

fifteen short CMOS shutdown byte test failed (POST 15)

one long DMA channel 0 test failed (POST 16)

one long, one short DMA channel 1 test failed (POST 17)

one long, two short DMA page register test failed (POST 18)

one long, three short Keyboard controller interface test failed (POST 19)

one long, four short Memory refresh toggle test failed (POST 20)

one long, five short First 64 KB memory test failed (POST 21)

one long, six short Setup interrupt vector table failed (POST 22)

one long, seven short Video initialization failed (POST 23)

one long, eight short Video memory test failed (POST 24)

Award BIOS

Beep Codes Message

one short Passed (no errors)

two short Any non-fatal error

one long, two short Video failure

one long, three short Keyboard Controller failure (applies to 286, 386 and 486)

IBM BIOS

Beep Codes Message

none Power Supply or System Board failure (possible short)

one short Passed (no errors)

one short (blank screen) Video error (check cable)

one short (no boot) Floppy Drive error

two short Configuration Error (displayed on screen)

repeating short Power Supply or System Board failure

continuous Power Supply or System Board / Keyboard stuck

one long, one short System Board failure

one long, two short Video (Mono/CGA) failure (check cable)

one long, three short Video (EGA) failure (check cable)

three long Keyboard Card error

Phoenix BIOS

Beep Codes Message

one, one, three CMOS Read/Write

one, one, four ROM BIOS Checksum failure

one, two, one Programmable Interval Timer failure

one, two, two DMA Initialisation failure

one, two, three DMA Page Register Read/Write failure

one, three, one RAM Refresh Verification error

one, three, three First 64K RAM Chip/Data Line failure

one, three, four First 64K RAM Odd/Even Logic

one, four, one First 64K RAM: Address Line

one, four, two First 64K RAM: Parity failure

one, four, three Fail-Safe Timer Feature (EISA only)

one, four, four Software NMI Port failure (EISA only)

two (followed by various combinations) First 64K RAM Chip/Data Line failure (combinations indicate which bit)

three, one, one Slave DMA Register failure

three, one, two Master DMA Register failure

three, one, three Master Interrupt Mask Register failure

three, one, four Slave Interrupt Mask Register failure

three, two, four Keyboard Controller failure

three, three, four Display Memory failure

three, four, one Display Retrace failure

three, four, two Video ROM search proceeding

four, two, one Timer Tick failure

four, two, two Shutdown failure

four, two, three Gate A20 failure

four, two, four Unexpected Interrupt in Protected Mode

four, three, one RAM test above 64K failure

four, three, two/three Programmable Interval Timer, Channel 2 failure

four, three, four Realtime Clock failure

four, four, one Serial Port error

four, four, two Parallel Port error

four, four, three Math Co-processor failure

(tone) one, one, two System Board Select

(tone) one, one, three estender CMOS RAM