How to place fans?

josh1002

Reputable
Aug 4, 2017
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I have a Cooler master masterbox 3.1 lite and it can support up to 3 fans. How do I know if my fans are blowing in or out hot air/which way do I face them?
 
Solution
The most common setup for fan placement is to have the front (bottom fans if you have a spot) fans taking air inside the case and have the rear (top fans if you have the spot) exhaust air out of the case.

Most fans have an arrow on the fan that shows the direction of air flow.

Here is a video from Linus that will tell you all about fans.

https://www.youtube.com/watch?v=Oc9c8LFY1bg