IBM Aptiva 2142 - Manual (Page 101)

Layout—Type A-1” on page 5-2, and “System Board Layout—Type
A-2” on page 5-5.
– Run the Easy Test Diagnostics test again.
– If an error or other symptom is displayed, go to “Index of Symptoms,
Messages, Error Codes, or Beeps” on page 2-9.
– If no error can be detected or the symptom is intermittent, go to
“Undetermined Problem” on page 2-56.
Check Procedures 2-45