IBM Lenovo Thinkpad T400, T61 Laptop 1.8 GHz 4 GB Ram Windows XP pro SP3 WiFi – ASA College: Florida
4GB Team High Performance Memory RAM Upgrade Single Stick For Lenovo ThinkPad T400 Series T410 Series Laptop. The Memory Kit comes with Life Time Warranty. at Amazon.com
IBM Lenovo Thinkpad T400, T61 Laptop 1.8 GHz 4 GB Ram Windows XP pro SP3 WiFi - Helia Beer Co
Lenovo Thinkpad T Series T400 RAM Repair Guide | Installation Video