Heh, I've got a T440 [T420i, see edit] I'm running FreeBSD on. Definitely tank status. It is even one of the 'rare' HD ones.
EDIT: I just turned it over to check and its a T420i Type 4177-X07 pretty much solid as a rock. I also discovered it would run with 16GB of RAM so there's that.
EDIT: I just turned it over to check and its a T420i Type 4177-X07 pretty much solid as a rock. I also discovered it would run with 16GB of RAM so there's that.