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
Tips Upgrade RAM pada Lenovo X230 - Ahmad Imanudin
ThinkPad X230 – faster RAM and comparison between single channel and dual channel speed – Ioannis Karagiorgos blog
Lenovo X230 RAM upgrade and HDD to SSD Upgrade - YouTube
One of my x230's final upgrades - a 1TB mSATA drive : r/thinkpad
Lenovo ThinkPad X230 Intel i5-3320M CPU 12.5 Inch Intel Core i5 3320M @ 2.60GHz, 16GB RAM, 256GB SDD, Win 10 Pro 64bit : Amazon.co.uk: Computers & Accessories