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Chapter 4
Intermittent Problems
Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a
hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors. FRU replacement
should be considered only when a recurring problem exists.
When analyzing an intermittent problem, do the following:
1.
Run the diagnostic test for the system board in loop mode at least 10 times.
2.
If no error is detected, do not replace any FRU.
3.
If any error is detected, replace the FRU. Rerun the test to verify that there are no more errors.
Summary of Contents for TravelMate 540 Series
Page 6: ...VI ...
Page 42: ...34 Chapter 1 ...
Page 56: ...48 Chapter 2 ...
Page 61: ...Chapter 3 53 Removing the Battery Pack 1 Slide the battery latch 2 Then remove the battery ...
Page 70: ...62 Chapter 3 ...
Page 86: ...78 Chapter 4 ...
Page 90: ...82 Chapter 6 Exploded Diagram The System 1 ...
Page 91: ...Chapter 6 83 The System 2 ...
Page 92: ...84 Chapter 6 LCD Module 14 ...
Page 93: ...Chapter 6 85 LCD Module 15 ...
Page 94: ...86 Chapter 6 ODD Module CD ROM DVD ROM ...
Page 95: ...Chapter 6 87 Combo Drive FDD Module ...
Page 107: ...Chapter 6 99 ...
Page 118: ...110 Appendix B ...
Page 120: ...112 Appendix C ...