IBM Thinkpad T61 RAM Replacement - iFixit Repair Guide
Lenovo Thinkpad T61 RAM Upgrade - YouTube
IBM Thinkpad T61 RAM Replacement - iFixit Repair Guide
4GB 2X2GB Memory RAM for Lenovo ThinkPad T Series T61 ( Type 7665 ) 200pin 667MHz PC2-5300 DDR2 SO-DIMM Black Diamond Memory Module Upgrade - Newegg.com
A-Tech 8GB (2 x 4GB) RAM for Lenovo THINKPAD T61P | DDR2 667MHz SODIMM PC2-5300 200-Pin Non-ECC Memory Upgrade Kit at Amazon.com
Lenovo T61 Ram for sale | eBay
IBM Thinkpad T61 RAM Replacement - iFixit Repair Guide
8GB 2X4GB Compatible Memory for Lenovo Thinkpad T61 T61p DDR2 PC2-5300 SODIMM RAM (PARTS-QUICK Brand) at Amazon.com
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) at Amazon.com
My Decade Driver: a 2008 vintage Lenovo Thinkpad T61! New battery, SATA SSD, and RAM upgrade. A bit sluggish but it works! : r/retrobattlestations
2GB Stick for IBM Lenovo ThinkPad T Series T61 T61p. SO-DIMM DDR2 Non-ECC PC2-6400 800MHz RAM Memory. Genuine A-Tech Brand. at Amazon.com