Lenovo ThinkCentre A70z Hardware Maintenance Manual for ThinkCentre A70z - Page 70

reinstall the same adapter, suspect the adapter., If the computer passes all the system tests

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4. Turn on the computer to retest the system. 5. Repeat steps 1 through 3 until you find the failing device or adapter. If all devices and adapters have been removed, and the problem continues, replace the system board. If the problem is solved when you remove an adapter from the computer but the problem recurs when you reinstall the same adapter, suspect the adapter. If the computer passes all the system tests, suspect a network cabling problem that is external to the computer. 64 ThinkCentre Hardware Maintenance Manual

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4. Turn on the computer to retest the system.
5. Repeat steps 1 through 3 until you find the failing device or adapter.
If all devices and adapters have been removed, and the problem continues, replace the system board.
If the problem is solved when you remove an adapter from the computer but the problem recurs when you
reinstall the same adapter, suspect the adapter.
If the computer passes all the system tests, suspect a network cabling problem that is external to the
computer.
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ThinkCentre Hardware Maintenance Manual