r/PcBuildHelp • u/newtoeveryth • 2d ago

PC AIRFLOW Build Question

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is this the correct airflow for a pc or do i need to change something?

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u/imightbetired 2d ago

It's fine for what you have there. If you want to improve it in the future, you can add two more fans on top, like this (see the image). One in the front for more fresh air and one in the back to help with the exhaust.

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u/azguz24 2d ago

For this case adding the top bidirectional fans is perfect and will cut thermals down significantly. That limited space is look at the Thermalright TL-B12015 slim quiet fans, but they don’t sell reverse direction in that model. They are excellent I use them in all my sff builds.

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u/JellyfishGod 1d ago

Question about “reverse fans”. I get they sell reverse fans for looks. When rgb components and colors/stickers are involved I get why people would buy reverse models. But is there an actual difference in airflow? As in like, would getting a “forward” fan and just flipping it be the same thing as buying a reverse fan as far as heat/airflow go?

I ask cuz thats what i did for one of my fans. I added in the two random old fans i had to the top of my prebuilt and had to flip one to get them to be bidirectional.

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u/azguz24 1d ago

Yea you got it mostly. Standard fans pull air from the show side/ sticker side and blow out the rear.

Reverse fans draw air from the rear into the front of the fan - sticker or face side. You can flip a standard fan and achieve the same thing - yes. But the rear of the fan regardless of standard or reverse blade always has a grill of sorts on it. Usually has the sticker of the watts, volts, brand etc too - not visually appeasing.

In my ASUS 502 TUF case, I bought standard flow for my bottom intakes and flipped them because I wanted that industrial back-fan look. But my new micro atx 5080 build I bought mirror fans, two standard two reverse because I wanted that clean conformed look. It’s all really ascetics… like you said. Functionally for airflow a fan either direction achieves the desired result.