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IBM Desktop BIOS Beep Codes - IBM Thinkpad BIOS Beep Codes

Views: 650
Votes: 1
Posted: 27 Mar, 2016
by: Wonglangga S.
Updated: 28 Mar, 2016
by: Wonglangga S.


Error Message


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
1 long, 3 short EGA/VGA adapter error
3 long 3270 keyboard adapter error
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:



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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