Skip to main content


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 T400s, follow this link which will help you resolve any issues you may have with your T400s.

Background and Identification

The ThinkPad T400s was noted for its sturdy and clean design, with traditional left and right mouse clickers on a trackpad. They also implemented a red trackpoint device which also works as a mouse. ThinkPads came with an Intel Core 2 Duo processor and 2GB of RAM standard and operated on the Windows Vista or XP platforms. The 400 series had a 14.1” widescreen with a fingerprint scanner for a more secure login.

Other leading technology for this laptop were the switchable graphics, allowing the use to switch between a discrete or integrated graphics card. These laptops were primarily praised for their long battery life, which was a result of the switchable graphics. However, in their 410, 420, and 510 models they announced a battery recall. Overall, the Lenovo ThinkPad T400s 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

Additional Information

Buy on Amazon

Hardware Maintenance Manual

Hardware Maintenance Manual pdf

Lenovo Datasheet

Thinkpad Wiki

View Statistics:

Past 24 Hours: 2

Past 7 Days: 20

Past 30 Days: 51

All Time: 4,344