Now we install the cooling solution:

Now we install the HDD into the chassis and place it back into the case (you can actually swap this and the previous steps):

Now we install the optical drive:

The last comes the graphics card and a PCI card if you have one:

Close the case. And you are done!

As you see, there is nothing difficult about that. However, there are a few things which you should keep in mind anyway. All in all, if you have never dealt with any barebone systems in general and Shuttle systems in particular, the whole assembly process will take about half an hour. It doesn’t seem to be too long, especially since the second time I put this system together the whole thing took about 10 minutes maximum.