After POST completes, the system beeps once.

What appears on the screen after this depends on if you have an OS loaded and if so, which one.

If the system halts before POST completes running, it emits a beep code indicating a critical system error that requires immediate attention. If POST can display a message on the video display screen, the speaker beeps twice as the message appears.

Note the screen display and write down the beep code you hear; this information is useful for your service representative. For a listing of beep codes and error messages that POST can generate, see “Solving Problems” on page 159.

128 Maintaining and Troubleshooting the Gateway ALR 9200 Server