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POST
When you turn on the server, it performs a series of tests to check the operation of server components and some of the options installed in the server. This series of tests is called the
If POST finishes without detecting any problems, a single beep sounds, and the first window of your operating system or application program appears.
If POST detects a problem, more than one beep sounds, and an error message appears on your screen. See “POST beep code descriptions” and “POST error messages” on page 79 for more information.
Notes:
1.If you have a
2.A single problem might cause several error messages. When this occurs, work to correct the cause of the first error message. After you correct the cause of the first error message, the other error messages usually will not occur the next time you run the test.
POST beep code descriptions
Beep codes are sounded in a series of beeps. For example, a
The possible types of beep codes that your server might emit include the following:
No beeps If no beep occurs after your server completes POST, call for service.
Continuous beep
Your startup (boot) microprocessor has failed, or your system board or speaker subsystem might contain a failing component. If the system continues through POST with no errors, call for service. If no video appears, the startup microprocessor has failed; replace the startup microprocessor.
One short beep
One beep indicates that your server successfully completed POST. POST detected no configuration or functional errors. One beep also occurs after your server completes POST, if you type an incorrect
Two short beeps
POST encountered an error. The Configuration/Setup Utility program will display additional information; follow the instructions that appear on the screen. See “POST error messages” on page 79 for descriptions of the text messages that might appear.
Three short beeps
A
Chapter 6. Solving problems 75