Troubleshooting 165
8. Verify the fan airflow path is not blocked by cables or other material.
Hot-plug fan problems are occurring
Action:
1. Check the LEDs to be sure the hot-plug fans are working. Refer to the server
documentation for LED information.
NOTE: For servers with redundant fans, backup fans may spin up
periodically to test functionality. This is part of normal redundant fan
operation.
2. Be sure no POST error messages ("POST error messages and beep codes" on
page 225
) are displayed.
3. Be sure hot-plug fan requirements are being met. Refer to the server
documentation.
Hard drive problems
List of problems:
System completes POST but hard drive fails .............................................................................165
Hard drive is not recognized by the server.................................................................................166
You are unable to access data.....................................................................................................166
Server response time is slower than usual..................................................................................166
No hard drives are recognized....................................................................................................166
A new hard drive is not recognized............................................................................................167
System completes POST but hard drive fails
Action:
1. Be sure no loose connections (on page 154
) exist.
2. Be sure no device conflict exists.
3. Be sure the hard drive is properly cabled and terminated if necessary.
4. Be sure the SCSI cable is working by replacing it with a known functional
cable.
5. Run Insight Diagnostics ("HP Insight Diagnostics" on page 126
) and replace
failed components as indicated.
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