Working with the 912 Plus is a pleasant experience. Even though there isn't an abundance of space within the 912 Plus it is still a case that allows you to plan and set things out in a tidy manner. I encountered no issues when installing any of the hardware within the case.
The width of the case provides no issues with tall heatsinks like the Noctua NH-U12P which is around 158mm in height. There is at least an inch to spare with the door panel fitted.
For the hard drive configuration, I chose to remove the upper cage completely. This meant I could then secure the 2.5" cage on the roof of the lower 3.5" cage. By doing this it meant that the 200mm fan at the front of the case has less objects to obstruct its path of airflow. It opens the line of path and causes greater pressure within the case, and should increase airflow/temperatures.
Installing the traditional 3.5" hard drive is easy, attach a clip to either side and slide the drive onto a row. The SSD doesn't benefit from such an easy install - back to the screws with this one.
As I mentioned in the previous section the motherboard cpu backplate cut-out is enormous. Proving its worth, the AM3 socket installed within the 912 Plus reveals generous space. Great work from Cooler Master here.