Follow the previously noted guides to replace the memory module under the memory cover.

The second memory module is located under the keyboard.

Follow the "IBM ThinkPad T42 Teardown" Guide Steps 5 and 6 to remove the keyboard.

In this guide we will remove the memory module, that is identified in the image with a red ellipse, instead of removing the WiFi card as noted in Step 7 of the "IBM ThinkPad T42 Teardown" Guide.

Remove the memory module to upgrade to the new memory module. See pg 83, or as noted in the PDF reader as pg 89, of the "thinkpad t40 t40p t41 t41p t42 t42p Maintenance Manual" for more details if needed. This manual is found in the Attached Documents section at the end of this Guide.