When working with your computer components and fixing up your computer, your case can be an important part of your system. Cases come in an array of sizes, each made to suit particular purposes. They range from Full-Tower down to Mini-Tower and Home Theater PC cases. They come in a variety of colors and shapes, and they offer a wide range of different options both internally and externally.
Interior space is typically the first thing that you want to make sure that you have enough of when upgrading or building your computer. It can be quite frustrating when you purchase that brand new graphics card and get home only to find that it wont fit in your mid-tower case. The dimensions should be listed with the case and on the case box itself. This will give you a general idea of the room youll have. You can then compare this to the graphics card that you want to purchase.
Graphics cards are not the only thing that may take up too much space in your case. The motherboard that you purchase may not fit in the case. The different form factors for motherboards, such as ATX or m-ATX, will also be listed with the case if it is compatible. Some ATX motherboards may still be too large for smaller cases, and when upgrading or repairing this is an issue that should be watched for.
The amount of other components that are going into the system should be taken into account as well. If you plan to have a nice graphics card, a sound card, an internal wireless card, a tv tuner card or any other number of additional components, the size of the case will be important.
Lastly, case size also affects the computer components temperature. A larger case tends to have a bit better airflow because the components are not sitting as closely to each other. This allows the air to circulate and keep your components cool. So, when fixing up a PC, the added airflow and cool temperatures may add some longevity to your components.