Specs Lenovo ThinkPad T61 (8898-6DG) DDR2-SDRAM 35.8 cm (14.1") 1024 x 768 pixels Intel® Core™2 Duo 1 GB 160 GB Intel® GMA X3100 Windows XP Professional Notebooks (UZ26DFR)
8GB 2X4GB Compatible Memory for Lenovo Thinkpad T61 T61p DDR2 PC2-5300 SODIMM RAM (PARTS-QUICK Brand) at Amazon.com