BIOS sounds

AMI BIOS Tone POST Codes - Fatal Errors

TONE CONDITION 1 short DRAM refresh 2 short Parity circuit 3 short Base 64K RAM 4 short System timer 5 short Processor 6 short Keyboard controller gate A20 7 short Virtual mode exception 8 short Display memory read/write test 9 short ROM BIOS checksum 10 short CMOS shutdown read/write 11 short Cache memory

AMI BIOS Tone POST Codes - Non-Fatal Errors

TONE CONDITION 1 long, 3 short Conventional/extended memory 1 long, 8 short Display/retrace test

Phoenix BIOS Tone POST Codes - Fatal Errors

TONE CONDITION None CPU register test None First 64K RAM test None Interrupt vector loading proceeding None CMOS power failure/checksum calculation None Display configuration validation proceeding None Display running with video ROM None Display functional None Mononchrome display functional None CGA display functional 1-1-3 CMOS write/read 1-1-4 ROM BIOS checksum 1-2-1 Programmable interval timer 1-2-2 DMA Initialization 1-2-3 DMA page register write/read 1-3-1 RAM refresh verification 1-3-3 First 64K RAM chip or data line 1-3-4 First 64K RAM odd/even logic 1-4-1 Address line first 64K RAM 1-4-2 Parity failure first 64K RAM 2-1-1 Bit 0, first 64K RAM 2-1-2 Bit 1, first 64K RAM 2-1-3 Bit 2, first 64K RAM 2-1-4 Bit 3, first 64K RAM 2-2-1 Bit 4, first 64K RAM 2-2-2 Bit 5, first 64K RAM 2-2-3 Bit 6, first 64K RAM 2-2-4 Bit 7, first 64K RAM 2-3-1 Bit 8, first 64K RAM 2-3-2 Bit 9, first 64K RAM 2-3-3 Bit 10, first 64K RAM 2-3-4 Bit 11, first 64K RAM 2-4-1 Bit 12, first 64K RAM 2-4-2 Bit 13, first 64K RAM 2-4-3 Bit 14, first 64K RAM 2-4-4 Bit 15, first 64K RAM 3-1-1 Slave DMA register 3-1-2 Master DMA register 3-1-3 Master interrupt mask register 3-1-4 Slave interrupt mask register 3-2-4 Keyboard controller 3-3-4 Display initialization 3-4-1 Display retrace 3-4-2 Search for video ROM proceeding

Phoenix BIOS POST Tone Codes - Non-Fatal Errors

TONE CONDITION 4-2-1 Timer tick interrupt test 4-2-2 Shutdown test 4-2-3 Gate A20 Failure 4-2-4 Unexpected interrupt in protected moe 4-3-1 RAM test (address failure >FFFFh) 4-3-3 Interval timer channel 2 4-3-4 Real time clock 4-4-1 Serial Port 4-4-2 Parallel Port 4-4-3 Math Co-processor test 1-1-2* System board select 1-1-3* Extender CMOS RAM *audio code pattern preceded by low pitched tone

IBM POST Tone Codes

TONE CONDITION NONE System board, power supply 1 short System passed all tests 2 short Display error continuous System board, power supply 1 long, 1 short System board 1 long, 2 short Video adapter 1 long, 3 short EGA 3 long 3270 keyboard card