Installed on an IBM ThinkPad T60 laptop recently “upgraded” to 2GB of RAM. Catching up on updates since my retail copy is the day 1 release and does not include SP1. :
RAM memory for Lenovo ThinkPad T60
CMS 2GB (1X2GB) DDR2 5300 667MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with IBM Lenovo® Thinkpad T60 1951, 1952, 1953-Xxx Notebook - A38 at Amazon.com
CMS 4GB (2X2GB) DDR2 5300 667MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with IBM Lenovo® Thinkpad T60 1954, 1955, 1956-Xxx Notebook - A37 at Amazon.com
NOKOTION For Lenovo Thinkpad T60 14.1 laptop motherboard 42T0122 945PM DDR2 X1400 Graphics free cpu
1GB Stick for IBM Lenovo ThinkPad T Series T60 Type 8741 8742 8743 8744. SO-DIMM DDR2 Non-ECC PC2-5300 667MHz RAM Memory. Genuine A-Tech Brand. at Amazon.com
IBM Thinkpad T60 RAM Replacement - iFixit Repair Guide
Lenovo IBM T60 SSD, RAM, and CPU Upgrade - YouTube
IBM Thinkpad T60 RAM Replacement - iFixit Repair Guide
2GB Memory RAM Upgrade for the Lenovo Thinkpad R61 Series T60 Series T61 Series X60 Series and X61 Series Laptops (DDR2-667 PC2-5300 SODIMM) - Walmart.com
CMS 8GB (2X4GB) DDR2 5300 667MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with IBM Lenovo® Thinkpad T61, T61P Ddr2 Pc5300 Sodimm - B116 at Amazon.com
4GB [2x2GB] DDR2-667 (PC2-5300) RAM Memory Upgrade Kit for The Lenovo ThinkPad T60 (Genuine A-Tech Brand) at Amazon.com
IBM Thinkpad T60 RAM Replacement - iFixit Repair Guide