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|
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 |
|
|
|
|
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 |
|
|
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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 |
|
|
|
|
|
|
|
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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 mode |
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 |
|
|
AMI BIOS Tone POST Codes - Non-Fatal Errors
TONE |
CONDITION |
1 long, 3 short |
Conventional/extended memory |
1 long, 8 short |
Display/retrace test |
|
|
|
|
TONE |
CONDITION |
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 |
|
|
|
