Help needed with fan set up AF or SP

[Papaspeedy]

I'm just about to replace the fans on my cooler master storm scout. It has a aircooled system in it. I need 1x120m and 2x140m fans the 140s sit at the front and on top and 120 in the rear also a 120 on the side panel. I was wondering what corsair fans would be better AF or SP I'm trying to keep dust down too.

 

[BradleyW-H]

I personally believe in only using static pressure fans as it is usually placed next to a fangrill/filter etc.

 

[tinytomlogan]

Use the AF's dude. but side panel fans..... REALLY?

 

[Papaspeedy]

Do you mean AF fans for the side only Tom?

 

[barnsley]

Do you mean AF fans for the side only Tom?

He doesn't like side panel fans.

 

[Papaspeedy]

Ok I don't have side fans on them at the mo so I'll scrap them So I'll go with quite AF then

 

[Davva2004]

AFs with the speed reducer is the way to go. Even the led ones look good at 7v and are silent.

 

[SuB]

I personally believe in only using static pressure fans as it is usually placed next to a fangrill/filter etc.

You're misinformed dude, static pressure is for radiators ONLY.

 

[Papaspeedy]

Thanks guys just ordered AF fans. Also would it be useful to change the fan on my CPU heat sink coolermaster V8

 

[Papaspeedy]

Got the new AF quite fans in and what a difference it makes wired them into 12v system is call.Thanks for the advice.

 

[qhfreddy]

You're misinformed dude, static pressure is for radiators ONLY.

That is not entirely true as fan grilles, depending on your case, can provide quite a bit of resistance to flow.

 

[MadShadow]

AF- Just for general airflow.
SP- Mostly radiators, but can also be used in front of HDD drive bays or other densly packed areas. (Wherever airflow is obstructed by something)

 

[SuB]

That is not entirely true as fan grilles, depending on your case, can provide quite a bit of resistance to flow.

Not as much as a radiator bud. If your fan grill is as resistant as a radiator it's probably not meant to have a fan on it.

 

[qhfreddy]

Not as much as a radiator bud. If your fan grill is as resistant as a radiator it's probably not meant to have a fan on it.

Compare the cross section of a radiator to the rear fan of a case...

(from CM Storm site)

Radiator fins should be very thin, and the paint on them even thinner.

(from TPU)

 

[SuB]

The photo you have there is what i'd consider to be a mid-low fpi radiator. This is what I would consider a perfect radiator for a static pressure fan

You're also missing something quite significant, thickness.... radiators are SIGNIFICANTLY thicker than a single sheet of ally or steel/plastic (w/e) that a fan grill is made of. Half of the reason we have static pressure fans specifically for radiators is due to high fpi radiators, there are much more, smaller, deeper holes. so you need pressure to push the air through, not speed.

A fan grill doesn't require pressure so much as just a lot of air to get through it.