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Beep code
Contents
Port 80h
Description
2-4-3
1Eh
Bit 14 first 64K RAM failure.
2-4-4
1Fh
Bit 15 first 64K RAM failure.
3-1-1
20h
Slave DMA register failure.
3-1-2
21h
Master DMA register failure.
3-1-3
22h
Master interrupt mask register failure.
3-1-4
23h
Slave interrupt mask register failure.
None
25h
Interrupt vector loading in progress.
3-2-4
27h
Keyboard controller test failure.
None
28h
CMOS power failure and checks calculation in
progress.
None
29h
CMOS configuration validation in progress.
3-3-4
2Bh
Screen initialization failure.
3-4-1
2Ch
Screen retrace test failure.
3-4-2
2Dh
Search for video ROM in progress.
None
2Eh
Screen running with video ROM.
None
30h
Screen operable.
None
30h
Screen running with video ROM.
None
31h
Monochrome monitor operable.
None
32h
Color monitor (40 column) operable.
None
33h
Color monitor (80 column) operable.
Beep Codes
B-3
Содержание 60/66MHz
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