BIOS


IBM Desktop BIOS:


Beeps

Error Message

Description

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