IBM HC10 Service Guide - Page 71

Checkout procedure The checkout procedure is the sequence of tasks that you should follow to diagnose a problem in the blade workstation. About the checkout procedure Before performing the checkout procedure for diagnosing hardware problems, review the following information: v Read the safety information that begins on page vii. v The diagnostic programs provide the primary methods of testing the major components of the blade workstation. If you are not sure whether a problem is caused by the hardware or by the software, you can use the diagnostic programs to confirm that the hardware is working correctly. v When you run the diagnostic programs, a single problem might cause more than one error message. When this happens, correct the cause of the first error message. The other error messages usually will not occur the next time you run the diagnostic programs. Exception: If there are multiple error codes that indicate a microprocessor error, the error might be in a microprocessor or in a microprocessor socket. See "Microprocessor problems" on page 59 for information about diagnosing microprocessor problems. v If the blade workstation is halted and a POST error code is displayed, see "POST error codes" on page 43. If the blade workstation is halted and no error message is displayed, see "Troubleshooting tables" on page 56 and "Solving undetermined problems" on page 80. v For intermittent problems, check the error log; see "POST" on page 39 and "Diagnostic programs, messages, and error codes" on page 68. v If no LEDs are lit on the blade workstation front panel, verify the blade workstation status and errors in the management-module Web interface; also see "Solving undetermined problems" on page 80. v If device errors occur, see "Troubleshooting tables" on page 56. Performing the checkout procedure To perform the checkout procedure, complete the following steps: 1. If the blade workstation is running, turn off the blade workstation. 2. Turn on the blade workstation. Make sure that the blade workstation has control of the video (the keyboard/video/mouse button is lit). If the blade workstation does not start, see "Troubleshooting tables" on page 56. 3. Record any POST beep codes that sound or POST error messages that are displayed on the monitor. If an error is displayed, look up the first error in the "POST error codes" on page 43. 4. Check for the following results: v Successful completion of POST, indicated by a single beep. v Successful completion of startup, indicated by a readable display of the operating-system desktop. 5. Did a single beep sound and are there readable instructions on the main menu? v No: Find the failure symptom in "Troubleshooting tables" on page 56; if necessary, see "Solving undetermined problems" on page 80. v Yes: Run the diagnostic programs (see "Running the diagnostic programs" on page 69). Chapter 5. Diagnostics 55