Peripheral | Device | Related | Symptoms |
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Symptom/Error |
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| FRU/Action |
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External | display | does | not 1. See | “External Display | |
work correctly. |
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| “Common | Devices | |
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| Checkout” | section. | |
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Printer | problems. | 1. Run | Printer | ||
2.System Board
3.Parallel Port Device
4.Cable
Serial or parallel port device1.Device | ||
problems. | 2. | Device Cable |
| 3. | System Board |
Other Symptoms
Symptom/Error |
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| FRU/Action |
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PCMCIA | slot | pin | is |
| 1.System Board |
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damaged. |
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Note: | If | you | cannot | find a symptom or error in this list | ||
| and the problem remains, see “Undetermined | |||||
| Problems.” |
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Intermittent Problems
Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a hardwar defect such as: cosmic radiation, electrostatic discharge, software errors. FRUs replacement should only be considered when a recurring problems 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,not replacedoany 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. | ||
Undetermined Problems
You are here because the diagnostic tests did not ident which adapter or device failed, installed devices are incorrect, a short circuit is suspected, or the system is inoperative. Follow the procedures below to isolate the failing FRU (do not isolate
Verify that all attached devices are supported by the computer.
Verify that the power supply being used at the time of failure is operating correctly. (See “Power Systems Checkout” on page 29.)
1.
42 IBM Mobile Systems HMM