How can you tell which way a fan is facing? Jankowski: Yeah, buy more fans, man! You can use an AIO as either an Intake or an Exhaust, when at the top of the case it is more often an exhaust. A heat sink that is both active and passive blows air through the finned radiator to help the heat escape faster.. Case fans. Don’t: Mount the fans pushing … Every fan features a cubic feet per minute (CFM) rating, which measures of the volume of air it moves in a minute. You will also be able to identify the Exhaust side as you will see power wires entering the fan motor. Question Installed artic esports 34 duo fans as pull/push(the wrong way for my case fans config) how much does it matter? I thought that the reason they did this was to break up that boundary layer air and get the airflow closer to the heat sink itself. The Rear or Exhaust side (the side that the air comes out of) of our fans will always be the side that houses the fan motor. A heat sink on the processor or another internal cooling unit can suck or blow depending on the heat sink and configuration of the computer's internal components. This dust can cause ventilation problems, trapping heat and preventing your PC from … Also, I'm getting an H60 corsair cooler in a bitfenix shinobi xl case. The fans should be impeded as little as possible when pushing or pulling air through the radiator to give the most performance for the whole system. If your computer is overheating, here are some things you can do about it: RELATED: Can Dust Actually Damage My Computer? To properly air cool your computer, you need have enough case fans to push or pull … It also depends strongly on the fan… Preventing Your Computer From Overheating. Welcome to the forums by the way! Clean Out Your Computer’s Case: Dust accumulates in desktop PC cases and even laptops over time, clogging fans and blocking air flow. If you were to put it at the front of the case it would be great for an intake. It's the same argument with smoothness. You should push if you can, if you have to choose one. The greater the CFM, the more air a fan moves. Simply because heat rises. Heat sink and CPU fan. Incase you want to know direction, look for the frame, if it has a plastic bar going across it, that side is the side it blows out. *laughs* I mean, yeah, you’ll have better cooling with push-pull than with just push or pull. It's all about case layout man. I've always been a fan of push over pull myself. How to tell which way a fan blows – 3 basic methods. This thread is now LOCKED b4 a bonfire which the water in my computer cant put out starts. Because of how they work (and how most are designed) there are great clues to help. Case fans and ventilation. The great news is that generally speaking it’s easy to tell fan air direction if you know what to look for. 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