How to tell fan direction

[andrewboon]

I'm trying to setup a push-pull configuration with my heatsink and I am wondering how to tell which way the fan is blowing. Thanks

 

[MagnusTheBrewer]

I'm trying to setup a push-pull configuration with my heatsink and I am wondering how to tell which way the fan is blowing. Thanks

Don't mean to be a smartass but, look which way the fan is turning?

 

[The Boston Dangler]

there are arrows on the side

 

[MagnusTheBrewer]

there are arrows on the side

On some fans yes but, not all.

 

[andrewboon]

So it's possible for me to look at a fan that's rotating at a rate of two thousand revolutions per minute (33.3 revolutions per SECOND) and determine that?

 

[MagnusTheBrewer]

So it's possible for me to look at a fan that's rotating at a rate of two thousand revolutions per minute (33.3 revolutions per SECOND) and determine that?

Fans don't start or end at that speed. I assuming you're in the same room and in control of the computer at the time. Not to mention, having a modicum of intelligence.

 

[Bryf50]

I've always used this rule. The side that has the plastic connected from the frame to the motor in the center is the side that air blows out of.

 

[GoStumpy]

Yeah this is nearly an epic fail thread.... Seriously? Taking the time to write a post of it on here takes 5x longer than just googling it, and saves a LOT of embarassment.

Turn it on unmounted and see which end blows at your hand.

Look for arrows on the casing

It will always blow towards the structural plastic side

OR.... Common sense?

 

[The Boston Dangler]

So it's possible for me to look at a fan that's rotating at a rate of two thousand revolutions per minute (33.3 revolutions per SECOND) and determine that?

at 2000 rpm you don't know which way the wind is blowing?

 

[Zorander]

Test the fan on the case chassis. Generally the intake side is cooler than the exhaust side (kinda d'uh but often not obvious to many). I can do this with my 800rpm fans so you should have even less trouble with your 2000rpm fans.

 

[deimos3428]

I find a kleenex is a very useful troubleshooting tool for determining case airflow.

 

[lehtv]

The fan blades are curved, convex (outward curved) on one side, concave (inward curved) on the other. Air will flow from the convex side to the concave side.

 

[RavenSEAL]

No worries OP, took me a few minutes to figure it out as well my first time putting a case together, lol.

 

[Puppies04]

I find a kleenex is a very useful troubleshooting tool for determining case airflow.

Depends how excited you get about fans I suppose.

 

[Zargon]

Depends how excited you get about fans I suppose.

LOL well played

 

[videogames101]

Look at the blades, how is this a question?

 

[Subyman]

String.

 

[quakefiend420]

stick your finger in it

repeatedly

 

[aigomorla]

B4 this gets out of hand i am locking it..

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.

This thread is now LOCKED b4 a bonfire which the water in my computer cant put out starts.

Cases and Cooling Moderator
Aigomorla