For instance, you don’t want to have one case fan pull fresh air in, only for another fan positioned nearby to immediately pull the fresh air out of the case before it can reach any hot parts. Prevent any fans from contradicting each other. Technically, it may also lead to slightly cooler air being pulled in from outside the case (when compared to higher intake positions), but this is likely to be a very slight difference.įinally, when positioning your fans, try to make sure your airflow is in one direction only. This intake strategy helps the fans on your graphics card (and sometimes power supply) to receive a steady flow of new air for cooling. Your intake fans, conversely, are (favorably) positioned low. Hot air rises above cold air, so your exhaust fans should be positioned above your hottest components, usually near the top back corner of the case. Positive pressure helps to prevent dust from being pulled into the case through the many random openings and gratings around the case, in addition to helping prevent pockets of hot air from accumulating anywhere inside the case.Īfter deciding how many intake and exhaust fans to use, you’ll still need to decide where exactly to put them. In situations with three or more fans, through, just try to aim for having more air pulled in through intake fans than pushed out through exhaust fans (in terms of total CFM), to create positive pressure inside the case. So, with one intake and one exhaust, having two fans is self-explanatory. This way, new room-temperature air is sucked into the case, and heated air is pulled away. I advise having at least one intake and one exhaust fan. Some older or cheaper fans use 3-pin connections, or even hook up directly to a power supply cable and run at full speed all the time.Īnother metric you should look at is the physical size of the fan: Does it fit within your case, and in the spot you want to put it?īut to know what size it should be, you’ll first need to decide which fan mounting positions in your case should be filled. Most fans are 4-pin PWM fans at this point, but you should also check what kind of connection the fan will use, and whether that type of connection is natively supported by your motherboard. As such, you want to look for fans with a high CFM. ![]() While there are many relevant factors, in general a higher CFM will translate into better cooling performance. CFM stands for Cubic Feet per Minute this tells you the volume of air that the fan can move from one side of itself to the other within a minute. When you want to know about the cooling performance of a fan, your first step should be to look how much CFM of air it moves. In this article, I am going to guide you through using case fans and selecting a good case to improve the cooling of your computer. But not everyone has them, and not everyone knows how to have a properly cooled PC. Low temperatures in PC parts are something that almost everyone wants.
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