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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 advanced 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 4150
Page 9: ...X Table of Contents...
Page 14: ...Chapter 1 5 Mainboard Placement Top View...
Page 15: ...6 Chapter 1 Bottom View...
Page 97: ...Chapter 5 88 Top View Jumper and Connector Locations Chapter 5...
Page 98: ...89 Chapter 5 Rear View...
Page 100: ...91 Chapter 5 VGA Board Item Description JP1 VGA Board to MB connector JP2 LCD Connector...
Page 103: ...Chapter 5 94 Hot Swap ODD Board Item Description JP1 Hot Swap JP2 ODD device Connector...
Page 104: ...95 Chapter 5 DVI Board Item Description JP1 DVI Board Connector...
Page 105: ...Chapter 5 96 Clear CMOS...
Page 107: ...98 Chapter 6 Exploded Diagram...
Page 108: ...Chapter 6 99...
Page 126: ...117 Appendix B...