Lenovo ThinkPad 765D ThinkPad 380, 385, 560, 560E, all 760, 765 and SelectADoc - Page 572
Power-Related Symptoms, Other Symptoms, Intermittent Symptoms, Symptom / Error
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Power-Related Symptoms Symptom / Error FRU / Action in Sequence Power shuts down during operation. 1. Go to "Power Systems Checkout" on page 533. 2. Battery pack 3. Remove the battery pack and let it cool for 2 hours. 4. DC/DC card 5. Power sources The system does not power off. (See "Reset Switch" on page 527.) 1. Press the power shutdown switch. 2. System board Other Symptoms Symptom / Error Errors occur only when the port replicator is used. FRU / Action in Sequence See "Port Replicator Checkout" on page 36. Note: If you cannot find a symptom or error in this list and the problem persists, see "Undetermined Problems" on page 561. Intermittent Symptoms 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 the 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 FRUs. 3. If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no more errors exist. 560 IBM Mobile Systems HMM
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