Check Procedures

Check Procedures

Use the following procedure as a guide for computer problems.

  1.  The diagnostic tests are intended to test only IBM products.  Non-IBM products, prototype cards, or modified options can give false errors and invalid system responses.
  2.  Some test items require tools as shown below:

  3.  Obtain the failing symptoms in as much detail as possible.
  4.  Verify the symptoms by attempting to recreate the failure  by running the diagnostic test or by repeating the same operation.
  5.  Use the following table with the verified symptom to determine which page to go to.  Search the symptoms column and find the description that best matches your symptom,  then go to the page shown in the "Go to" column.

Symptoms (Verified)    Go to
   Power failure.    'Power Systems Check', then use
   (The power-on indicator does not    table in 'Power-Related Symptoms'.
   go on or stay on.)  
   POST does not complete.    'Symptom-to-FRU Index', then use
   No beeps or error    table in 'No Beep Symptoms'.
   codes/messages are indicated.  
   POST detected an error and    'Symptom-to-FRU Index'.
   displayed numeric error  
   code with error message.  
   Other symptoms    Appropriate check instructions in this section, then use
     appropriate tables in 'Symptom-to-FRU Index'.

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