A system can have too much heat when you have dust-caked components, slow fans, and a high-end GPU. Will getting two exhaust fans solve the problem? Not quite. When you have two fans pushing the hot air out way too fast, the system inside the case will develop negative pressure.
Sort of like a vacuum, but not quite an actual one. These fans are ideally placed on the front, taking in room temperature air. The exhaust fans ideally sit on the back panel, pushing hot air from inside the system out. So, the bottom line remains the same. Two fans are the ideal recommendation for most gaming computers. One exhaust and one intake combined.
Sure, two intakes and two exhausts will be even better. It will make your case at least 3 degrees cooler. A total of 8 fans will give a marginal temperature improvement over 4. Earl is a big-time FPS lover. Since his childhood, he has found peace amid the sounds of bullets and explosions. While a liquid cooling system can cool your CPUs and GPUs more, the other components still need to be cooled and ventilated with a fan.
Case fans are responsible for the airflow going around inside your gaming PC. This brings the question, how many case fans do you need? A minimum of 2 case fans is needed. The first one is for taking in the cool here intake and the other one is for bringing the hot air out exhaust. Most builds have their components centralized and have the exhaust behind the PC and have the intake near the drive bay. Most of the heat will be aired out immediately and get replaced by cooler air from the front side of the case.
Even with a liquid cooling system, you still need the airflow inside your PC so you would still need case fans. You would want your components to be around 50 to 70 degrees Celcius. If you can have it lower, it would be a lot better and it will definitely make your gaming PC last longer. By adding another case fan, it can improve your airflow and overall temperature faster. This depends on your overall PC build and what options you have. Pro tip: It's okay to err a little on the positive side.
Good computer casings are not just for style points. They help manage your heat better. The only con being they are usually a bit on the large side. A proper case Phanteks will offer a large, unobstructed space for your airflow while keeping hard drives, power supply unit and cables neatly out of the way in separate modular compartments.
These also have dust filters because as Spiderman said, "With great fans come great dust. If you spend any more, you should expect your PC case to also cook your dinner and tie shoe laces. Parting tip: Most builders mount a fan on the top as an exhaust. I've found fitting the top mounted fan as an intake works better to feed cool air to the CPU below not suitable for liquid cooling.
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