how do you know it will work? i ask because i tried this motherboard in a regular atx case, and the screw holes didn't line up with the tray. so i tried it in a slightly older dell optiplex case, picked up from a local pc store, which also was a no-go. i called dell and tried to bs some information out of them, but the best i could get was "sorry but we actually don't know which of our cases will fit which of our motherboards, we just know that a dell precision workstation 370 will fit the case that we make for dell precision workstation 370s" oooohhhh gotta love that 'world class' support they used to be famous for...
It is a full size thermaltake xaser II case. Had about 3 dell motherboards in it when I worked at a computer shop before. We rebuilt numerous dells and they all fit in this case.