IBM 8659-71Y Maintenance Manual - Page 18
POST Beep Codes, Error Messages, Option Diskettes
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POST Beep Codes: POST generates beep codes to indicate successful completion or the detection of an error. One beep indicates successful completion of POST. More than one beep indicates that POST detected an error, see "Beep Symptoms" on page 152 Error Messages: Error messages indicate that a problem exists; they are not intended to be used to identify a failing part. Hardware error messages that occur can be text, numeric, or both. Messages generated by your software generally are text messages, but they also can be numeric. POST Error Messages and Beep Codes: POST error messages and beep codes occur during startup when POST finds a problem with the hardware or detects a change in the hardware configuration, see "Symptom-to-FRU Index" on page 152. Diagnostic Error Messages: Diagnostic error messages occur when a test finds a problem with the server hardware. These error messages are alphanumeric and they are saved in the Test Log. Software-Generated Error Messages: These messages occur if a problem or conflict is found by an application program, the operating system, or both. Messages are generally text messages, but they also can be numeric. For information about these error messages, refer to the documentation that comes with your software. Option Diskettes: An optional device or adapter might come with an Option Diskette. Option Diskettes usually contain option-specific diagnostic test programs or configuration files. If your optional device or adapter comes with an Option Diskette, follow the instructions that come with the option. Different instructions apply depending on whether the Option Diskette is startable or not. 10 Netfinity Server HMM