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IBM BIOS beep codes - beep codes for troubleshooting


IBM BIOS beep codes - beep codes for troubleshooting
Beep codes are code sounds that occur in the CPU when you start up the system; incase there is a problem. The various beep codes can be used as an aid to troubleshooting.
Below are general IBM BIOS Beep codes that can occur.
Note: Because of the wide variety of different computer manufacturers with this BIOS, the beep codes may vary.
Beep Code
Description
No Beeps
No Power, Loose Card, or Short.
1 Short Beep
Normal POST, computer is ok.
2 Short Beep
POST error, review screen for error code.
Continuous Beep
No Power, Loose Card, or Short.
Repeating Short Beep
No Power, Loose Card, or Short.
One Long and one Short Beep
Motherboard issue.
One Long and Two Short Beeps
Video (Mono/CGA Display Circuitry) issue.
One Long and Three Short Beeps.
Video (EGA) Display Circuitry.
Three Long Beeps
Keyboard / Keyboard card error.
One Beep, Blank or Incorrect Display
Video Display Circuitry.
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