(Image credit: Shutterstock) You’ve seen the debates, and you’ve seen the Reddit threads. You’ve probably even flipped your rear fan orientation at 2 a.m. “just to test something.” As enthusiasts, we obsess over the tiniest details of our PCs just to get that extra frame while gaming, or to lower the temperatures of our GPU by one degree. This is where the importance of airflow becomes paramount. Most PC builders spend hours finding the perfect CPU and GPU combination that stretches every penny of their budget. They pick the most optimal cooling components and even think about the conductivity numbers of their thermal paste, but when it comes to case airflow, it all becomes a bit rudimentary. In fact, some PC builders nowadays prioritize aesthetics over performance when it comes to choosing the number and size of their case fans. The airflow configuration (i.e., where and how the air is flowing) of your PC build is one of the most overlooked parts of the entire process.…