Chapter 4
125
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 6593 Series
Page 6: ...VI ...
Page 9: ...IX Table of Contents Online Support Information 167 Index 169 ...
Page 10: ...X Table of Contents ...
Page 46: ...36 Chapter 1 ...
Page 62: ...52 Chapter 2 ...
Page 93: ...Chapter 3 83 22 Disconnect the LED cable from the LED_CN1 connector on the main board ...
Page 116: ...106 Chapter 3 ...
Page 130: ...120 Chapter 4 F5h Boot to Mini DOS F6h Clear Huge Segment F7h Boot to Full DOS Code Beeps ...
Page 137: ...Chapter 5 127 Top and Bottom View Jumper and Connector Locations Chapter 5 ...
Page 140: ...130 Chapter 5 ...
Page 172: ...Appendix A 162 ...
Page 176: ...166 Appendix B ...
Page 178: ...168 Appendix C ...