ThinkPad X230 – faster RAM and comparison between single channel and dual channel speed – Ioannis Karagiorgos blog
OFFTEK 4GB Replacement Memory RAM Upgrade for IBM-Lenovo ThinkPad X230 (DDR3-12800) Laptop Memory at Amazon.com
Just received my first ThinkPad, X230 cheap on eBay, it's like a second Christmas ! I will replace screen, put backlight keyboard, increase ram and add SSD. I'm discovering VoidLinux at the
ThinkPad X230 – faster RAM and comparison between single channel and dual channel speed – Ioannis Karagiorgos blog