You can find support information for your IBM products, including supported options, on the IBM Personal Computing Support page: http://www.ibm.com/pc/support If you click profile on the support page, you can create a customized support page that is specific to your hardware, complete with Frequently Asked Questions, Parts Information, Technical Hints and Tips, and Downloadable Files. You will have the information you need, all in one place.

In addition, you can choose to receive e-mail notifications whenever new information about your registered products becomes available

Download IBM ThinkPad T20 T21 Users Guide PDF