The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
There probably is a guide, but the swap is pretty straight forward. On the left side of the x200 you have the hard drive bay. Remove 1 or 2 screws on the bottom that secure it, and slide the drive out. You will then need to remove a few screws to take the caddy off of the hard drive. Then place the SSD in the caddy and slide it in your x200.
The complicated part is getting your data across. If you have a desktop, ultrabase, or some other method of accessing two SATA drives at once, you can do a direct drive to drive clone (there are several free and commercial tools to do this). If you don't have this ability, and don't mind starting from scratch, the easiest thing to do is make the Recovery DVDs (1 boot CD, 2 image DVDs), and restore the factory image to your new SSD. You will then need to reinstall your applications and copy your data files over.
Problems? See this thread at archive.org.
