Checkout Guide - Lenovo ThinkPad T400 Maintenance Manual

Checkout guide

Use the following procedures as a guide in identifying and correcting problems
with the ThinkPad computer.
Note: The diagnostic tests are intended to test only ThinkPad products. The use of
non-ThinkPad products, prototype cards, or modified options can lead to false
indications of errors and invalid system responses.
1. Identify the failing symptoms in as much detail as possible.
2. Verify the symptoms. Try to re-create the failure by running the diagnostic test
or by repeating the operation.
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General checkout