Intel Motherboards:
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T440BX
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VC820
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IBM
Desktop BIOS Beep Codes
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IBM
Thinkpad BIOS Beep Codes
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IBM
Desktop BIOS Beep Codes:
Beeps
|
Error
Message
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Description
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1 short |
Normal POST |
System is booting properly |
2 short |
Initialization error |
Error code is displayed |
1 long, 1 short |
System board error |
|
1 long, 2 short |
Video adapter error |
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1 long, 3 short |
EGA/VGA adapter error |
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3 long |
3270 keyboard adapter
error |
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Continuous |
Power supply error |
Replace the power supply |
999s |
Power supply error |
Replace the power supply |
No beep |
Power supply |
Replace the
power supply |
IBM
Thinkpad BIOS Beep Codes:
Beeps/Error
|
Description
|
Continuous beeping |
System board failure |
One beep; Unreadable,
blank or flashing LCD |
LCD connector problem;
LCD backlight inverter failure; video adapter faulty; LCD assembly
faulty; System board failure; power supply failure |
One beep; Message "Unable
to access boot source" |
Boot device failure;
system board failure |
One long, two short beeps |
System board failure;
Video adapter problem; LCD assembly failure |
One long, four short
beeps |
Low battery voltage |
One beep every second |
Low battery voltage |
Two short beeps with
error codes |
POST error message |
Two short beeps |
System board failure |
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System
Specific Diagnostic and POST Error Messages:
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