Yeah, that was the time limit
The modelling work at least. The materials/rendering took a lot longer than that to perfect, but its my own design, and I was really happy, since I don't tend to design much.
As for the cooler fan, I stopped modelling it because I wanted it to be a realistic model, and I couldn't find enough pics without taking apart mine, to model it properly. For instance, its not perfectly round, yet my model is, etc, etc.