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Service Hints & Tips |
Document ID: GSMH-3C8MCC |
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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. |
TP General - N51 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 supply is operating correctly, return here and continue with the following procedure.
1. Power-off 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. Memory module kit
d. Hard disk drive (fixed disk drive)
e. Communications cartridge
f. Any adapter and device
3. Power-on the computer and start the system program.
4. Press Ctrl+A to run the system checkout. Do not configure the computer. If diagnostics cannot be loaded from the hard disk, try and load them from the Reference Diskette. Test only those adapters and devices still attached to the computer.
5. If the symptom remains, repeat steps 1 through 3 until you find the failing FRU or until all FRUs have been removed.
6. 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 |
10-12-96 | |
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Last Updated |
01-05-98 | |
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Revision Date |
28-04-99 | |
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Brand |
IBM ThinkPad | |
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Product Family |
Notebook N51 | |
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Machine Type |
8551 | |
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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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