Question about fans airflow

[Lunatyc]

Hi,

I have a few questions about fans and airflow and was hoping if anyone can clear this up?

1. I have the lga1366 noctua cooler, and both the fans on this spin anti clockwise, however the rear case fan on my fortress has been upgraded to an enermax cluster, which spins clockwise.

will there be any turbulence and loss of airflow with this kinda setup?

(the fan is very low rpm and i can feel much air coming out behind)

2. I recently put an old nv silencer on my 9800gt, and altho it reduced the temps, i have a feeling its running inverted with the fan spinning the wrong way, how can i solve this problem if such is the case?

 

[Nick1881]

Fans blow air in the direction the sticker and frame is.

Your Noctua fans should be facing towards the rear case fan and the rear case fan exhausting air out.

Maybe if you take a pic we can see if you have them right.

 

[magicroundabout]

sounds to me like they are blowing in the wrong direction to each other.

Is there air coming out of the back of your case?
If so rotate the Noctuas so the fans spin in the same direction and it'll vent the air out of the case

 

[shadowscotland]

The fan blades on both fans have the same leading edge and air flow direction (as mr x said above towards the sticker/wires/frame side)

If your look towards the back of the case across the HSF all fans should be spinning anti-clockwise.
If looking at the fan from the rear via the case grill it should be clockwise.

 

[setter]

This is how mine were setup in push/pull, in line with the rear exhaust fan.

Quite a lot of modern fans will have arrows etched on the frame indicating rotation direction and airflow

 

[Lunatyc]

thanks for the replies, i made a mistake with the main fans, they are all facing the right way, i had just mistaken the rotation direction of teh rear fan.

sorry for any confusion and thanks again for the replies