The ThinkPad T Series is one of the most popular ever, which has led to consistent hardware design and broad support for it. Although the T400 was introduced in 2008 and produced up until 2010, it is very much suited to run the latest and greatest FreeBSD–10.1 in the current case. Here are the steps that led to a viable desktop installation using the i3 window manager, background info and a few security tips sprinkled on top.