BIOS beep codes
IBM desktop BIOS beep codes1 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)
No beep - Power supply (Replace the power supply)
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