IBM Thinkpad T42 CPU & RAM Upgrades: Worth It? - YouTube
CMS 2GB (2X1GB) DDR1 2700 333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with IBM Lenovo® Thinkpad T42 Pentium M Series Ddr1-Pc2700 - A49 at Amazon.com
How to upgrade memory in IBM ThinkPad T40 T41 T42 – Inside my laptop
LED backlight kit for Thinkpad IBM T40 T41 T42 T43 T43P LCD upgrade|AC/DC Adapters| - AliExpress
OFFTEK 1GB Replacement Memory RAM Upgrade for IBM-Lenovo ThinkPad T42 (2379-xxx) (PC2700) Laptop Memory at Amazon.com
IBM ThinkPad T42 Memory Replacement - iFixit Repair Guide
256MB RAM Memory for IBM ThinkPad A22p 2629-UTU Black Diamond Memory Module SDRAM SO-DIMM 144pin PC100 100MHz Upgrade - Newegg.com
IBM ThinkPad T42 Memory Replacement - iFixit Repair Guide
IBM ThinkPad T42 Memory Replacement - iFixit Repair Guide
512MB Black Diamond Memory Module for IBM ThinkPad T42p 2373 DDR SO-DIMM 200pin PC2700 333MHz Upgrade - Newegg.com
OFFTEK 1GB Replacement Memory RAM Upgrade for IBM-Lenovo ThinkPad T42 (2379-xxx) (PC2700) Laptop Memory at Amazon.com