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Service Hints & Tips |
Document ID: GSMH-3C7EG6 |
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This document is provided to IBM and our Business Partners to help sell and/or service IBM products. It is not to be distributed beyond that audience or used for any other purpose. |
Laptop L40SX - Undetermined Problem
Applicable to: World-Wide
Undetermined Problem:
You are here because the diagnostics tests did not identify the failing FRU.
Check the power supply in use (see ¿Power Systems Checkout—). If the power systems are operating correctly, return here and continue with the following procedure.
1. Power-off the computer and remove the battery packs from the computer.
2. Remove or disconnect one of the following devices or adapter (do not isolate FRUs that are known to be good).
a. Non-IBM devices
b. Modem, printer, mouse, or other external device
c. IC DRAM card
d. Hard disk drive (fixed disk drive) or diskette drive
e. Any adapter and device.
3. Power-on the computer and start the system program.
4. If the symptom remains, repeat steps 2 and 3 until you find the failing FRU or until all FRUs have been removed.
5. If all of the FRUs listed have been removed and the problem remains, replace the system board.
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Hint Category |
Hardware Maintenance Information | |
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Date Created |
09-12-96 | |
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Last Updated |
15-04-98 | |
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Revision Date |
02-04-99 | |
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Brand |
IBM ThinkPad | |
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Product Family |
Laptop L40 | |
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Machine Type |
8543 | |
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Model |
Various | |
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TypeModel |
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Retain Tip (if applicable) |
N/A | |
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