I prefer things to be small so for this step I am choosing the Apevia X-QPACK2 case. This thing is small enough to almost fit on a book shelf. And from my experience I haven't had any issues with overheating with the 2 that I have.
First thing is first, unbox the unit and place it
on a flat surface. On the back, you will find 3 finger screws holding the black case cover on, unscrew these screws and pull the case cover toward the back until the front of the
cover clear the slides that are holding it in. Now lift up on the cover and it should come right off. You may have to work with it a little but it will come off. On some cases the
side panel comes off (if looking from the rear its the right side panel). Remove the 2 screws holding it on and slide it back about an inch and pull it to the side away from case
to remove. Now that thats off turn it upside down and lay it on a flat surface.
On this
particular case the panel that the mother board mounts to, can be removed. So now is when you should remove this panel. On this case it is removed by removing 2 more finger
screws from the rear panel, and slide the motherboard mounting panel out the rear of the case.As of now I would have to say your case is prepared to move on to the next step.