These are some common tools used to work on this device. You might not need every tool for every procedure.
If you are experiencing any issues with your Lenovo Thinkpad T400, follow this link which will help you resolve any issues you may have with your T400s.
Background and Identification
The ThinkPad T400 was noted for its sturdy and clean design, with traditional left and right mouse clickers on a trackpad. They also implemented a red trackpoint which also works as a mouse. ThinkPads came with an Intel Core 2 Duo processor and a standard of 2GB to operate either Windows Vista or XP. The 400 series had a 14.1” widescreen with a fingerprint scanner for more secure log on.
Other leading technology for this laptop was switchable graphics between discrete and integrated. These laptops were primarily praised for their long battery life due to the switchable graphics card. However, in their 410, 420, and 510 models they announced a battery recall. Overall, the Lenovo ThinkPad T400 has competitive specs when compared with other business laptop models as shown here.
•Intel Core 2 Duo
•2.2GHz to 2.6GHz
•1 to 16 GB Ram
•80 GB to 250 GB Hard Drive
•14” LCD Monitor
•Wi Fi B/G/N