Symptom/Error |
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| FRU/Action | in | Sequence |
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The system will | not | 1. | LED | Card | ASM | (R) |
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enter | suspend |
| mode | 2. | System board |
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after closing | the LCD. |
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Battery | 1. | Remove battery ASM and | let | ||||||||
does | not | go | higher | it | cool | for | 2 hours. |
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than | 90%. |
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| 2. | Refresh | battery (continue | ||||
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| using battery in BIOS Setup | ||||||
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| mode until power off, then | ||||||
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| charge | battery). | |||||
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| 3. | Battery |
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| 4. | System board | |||||
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System | configuration | 1. | Load | Setup | Defaults and | ||||||
does | not | match | the | reboot | the | system. | |||||
installed | devices. |
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System | hangs |
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| 1. | Fan ASM |
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intermittently. |
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| 2. | System board | |||||||
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Peripheral-Device-Related Symptom
Symptom/Error |
| FRU/Action | in Sequence | ||
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External | display | doesSystem | board | ||
not | work | correctly. |
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USB does not work | System board | ||||
correctly. |
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problems | Ÿ | Run printer | |||
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| Ÿ | Printer driver | |
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| Ÿ | Printer cable | |
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| Ÿ | System board | |
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Serial or parallel | portŸ | Device driver | |||
device | problems | Ÿ | Device cable | ||
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| Ÿ | Device | |
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| Ÿ | System board | |
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Note: If you | cannot | find a | symptom | or an error in this list |
and the | problem | remains, | see | “Undetermined |
Problems” on page 22. |
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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 hardware defect, such as cosmic radiation, electronic 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 diagnostic test for the system board in loop mode at least 10 times.
2.If no error is detected, do not replace any FRUs.
ThinkPad 24021
