Kontron KTQ77-FLEX Manuale Utente Scaricare il pdf (Pagina 140)

KTQ77/Flex Users Guide

KTD-N0848-C Page 140

11 AMI BIOS Beep Codes

It is normal for Kontron AMI UEFI BIOS to generate some beeps after POST has passed successfully:

The first beep indicates that POST has successfully passed.

Then a number of beeps indicate the number of attached USB devices.

And finally a special long beep indicates that AMI boot is completed.

Note: The long beep starting as a normal beep but is changing to higher frequency.

If POST has found a problem, then the normal behaviour (described above) is changed:

Boot Block Beep Codes:

Number of

Beeps

Description

Insert diskette in floppy drive A:

‘AMIBOOT.ROM’ file not found in root directory of diskette in A:

Base Memory error

Flash Programming successful

Floppy read error

Keyboard controller BAT command failed

No Flash EPROM detected

Floppy controller failure

Boot Block BIOS checksum error

Flash Erase error

Flash Program error

‘AMIBOOT.ROM’ file size error

BIOS ROM image mismatch (file layout does not match image present in flash device)

POST BIOS Beep Codes:

Number of

Beeps

Description

Memory refresh timer error.

Parity error in base memory (first 64KB block)

Base memory read/write test error

Motherboard timer not operational

Processor error

8042 Gate A20 test error (cannot switch to protected mode)

General exception error (processor exception interrupt error)

Display memory error (system video adapter)

AMIBIOS ROM checksum error

CMOS shutdown register read/write error

Cache memory test failed

Troubleshooting POST BIOS Beep Codes:

Number of

Beeps

Troubleshooting Action

1, 2 or 3

Reset the memory, or replace with known good modules.

4-7, 9-11

Fatal error indicating a serious problem with the system. Consult your system

manufacturer. Before declaring the motherboard beyond “all hope”, eliminate the

possibility of interference due to a malfunctioning add-in card. Remove all expansion

cards, except the video adapter.

• If beep codes are generated when all other expansion cards are absent, consult your

system manufacturer’s technical support.

• If beep codes are not generated when all other expansion cards are absent, one of the

add-in cards is causing the malfunction. Insert the cards back into the system one at a

time until the problem happens again. This will reveal the malfunctioning card.

If the system video adapter is an add-in card, replace or reset the video adapter. If the

video adapter is an integrated part of the system board, the board may be faulty.

BIOS – Beep/POST

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