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102
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 mainboard 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 Aspire 4315
Page 10: ...x ...
Page 54: ...44 Chapter 2 ...
Page 66: ...56 Chapter 3 Main Unit Disassembly Process Main Unit Disassembly Flowchart ...
Page 85: ...Chapter 3 75 18 Carefully detach the RTC battery from the SD card slot ...
Page 114: ...104 Chapter 4 ...
Page 115: ...Chapter 5 105 System Block Diagram System Block Diagram and Connector Locations Chapter 5 ...
Page 120: ...110 Chapter 6 Aspire 4715Z 4315 Exploded Diagram ...
Page 145: ...Chapter 6 135 ...
Page 152: ...142 Appendix B ...
Page 154: ...144 Appendix C ...