What CPU Fan Rotation Direction?

holygamer · 21 Feb 2013 at 08:13

I bought the Corsair H100i and wish to have a push/pull config. I'll have 2 fans on one side of the radiator and 2 on the other. I know how to position the fans for the correct air direction but what difference does the fan rotation direction matter? Should all 4 fans have the same rotation direction? For example should I have the fans positioned vertically so I can see the arrows and should the arrows be facing left or right?

Resident · 21 Feb 2013 at 13:47

I'm confused by what you're actually asking here. Why would fans be rotating in different directions if their airflow is the same?

holygamer · 21 Feb 2013 at 13:56

So why are there 2 arrows if the rotation direction doesn't matter, if I just position the fans based on the airflow direction I want? I don't really undestand the point of having an arrow for the rotation direction if it doesn't matter?

If I sit the fan vertically I can see 2 arrows on the top of the fan. One is pointing down (airflow direction), the other is pointing right (to the side). What direction should the side arrow be facing on all 4 fans?

setter · 21 Feb 2013 at 14:07

<- II <- like so, arrows represent fan flow direction, the two i's represent the rad, the fans can only spin in one direction, (anti clockwise). The arrows are just added by some manufacturers to indicate rotation.

ubersonic · 21 Feb 2013 at 14:18

Doesn't matter which way they turn as long as the airs going in the right direction. If you read something then as long as its legible its not important if the author was right/left handed is it?

Devrij · 21 Feb 2013 at 21:07

Don't worry about the arrows. As long as the air is going in the right direction the only concern with rotation is cable management.