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post #11 of 30
I would say that the way I would always set up air flow so cool air comes in to the case as low down near the front and hot air exits the case towards the top and back.


So I would set it up like this
    
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post #12 of 30
Thread Starter 
First of all thank you ALL for your effort , especially Monkeypoo and Salavanos
+rep

-----------------------------------------------------------------

I will mention all problems and number them.


1.)The negation of airflow by putting intake/outtake next to each other.
I have actually never read anywhere that two fans could negate each others airflow if put next to each other when having different push/pull designations.

You have to imagine the airflow like a barrel ...if you put two fans next to each other the barrel of air cannot be impeded by either one ....but once the barrel expands as air is gas not the negation of airflow but rather of the sense of cooling is enitiated.

Example:exhaust blows the air out and the intake fan right next to it sucks the hot air back in the case.
Monkeypoo already mentioned that and he is completely right!
Only one thing though....the hot air mixes with the cooler ambient air first so it wouldn´t be 100% bad case exhaust air but rather 50-40% cooler air because it had the chance to mix with the ambient air before being sucked in by the intake.

So let´s give the top 2x120mmexhaust + top 2x120mm intake idea a B- .



2.)Salvanos brought up a pretty nice idea ....in his first picture.
4x120mm intake + rear intake + front exhaust.

Basically that would be a very nice idea for a normal gpu setup.
This positive pressure would be great for reference cooled gpu´s.
But please consider these are Twin Frozr III CF.
Those coolers will exhaust most of the hot air into the case.
So the heat would only mix and cluster with a 90% intake / 10 % exhaust fan setup.

Which is why I give this idea a C+

3.)Then there is the 90% outtake + 10% intake theory which is displayed in Salvanos second picture.

I think this is one of the best ideas because the TWFIII´s exhaust air will be exfiltrated to a 100%.
The only weak point is the intake capability.
A single 140mm intake from the front which is about 3 foot (80cm) away from the gpu´s is just not enough to supply them with sufficient cool air.

The success of this theory depends on how the TWFIII work and what they prefer a good exhaust and can cool on neutral air ..or if they need good exhaust + good intake.
Which leads us to my personal idea

4.)left top 2x120mm exhaust + right top 2x120mm intake + front 140mm intake

In theory this would be the best of all ideas but unfortunetly there are too many flaws and unanswered questions in it.

Will the intake fans suck in the hot/mixed hot air back into the case even though they are very low RPM?

Will the fans even negate each other or will they be able to work independantly?

hmmmm not sure yet

Also please note the 140mm fan option in the bottom of the upper section and top of the lower compartment is where the PSU will be installed ...no fans there^^
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post #13 of 30
Dude what case is that?
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post #14 of 30
Thread Starter 
Quote:
Originally Posted by Kung Pow View Post
First of all thank you ALL for your effort , especially Monkeypoo and Salavanos
+rep

-----------------------------------------------------------------

I will mention all problems and number them.


1.)The negation of airflow by putting intake/outtake next to each other.
I have actually never read anywhere that two fans could negate each others airflow if put next to each other when having different push/pull designations.

You have to imagine the airflow like a barrel ...if you put two fans next to each other the barrel of air cannot be impeded by either one ....but once the barrel expands as air is gas not the negation of airflow but rather of the sense of cooling is enitiated.

Example:exhaust blows the air out and the intake fan right next to it sucks the hot air back in the case.
Monkeypoo already mentioned that and he is completely right!
Only one thing though....the hot air mixes with the cooler ambient air first so it wouldn´t be 100% bad case exhaust air but rather 50-40% cooler air because it had the chance to mix with the ambient air before being sucked in by the intake.

So let´s give the top 2x120mmexhaust + top 2x120mm intake idea a B- .



2.)Salvanos brought up a pretty nice idea ....in his first picture.
4x120mm intake + rear intake + front exhaust.

Basically that would be a very nice idea for a normal gpu setup.
This positive pressure would be great for reference cooled gpu´s.
But please consider these are Twin Frozr III CF.
Those coolers will exhaust most of the hot air into the case.
So the heat would only mix and cluster with a 90% intake / 10 % exhaust fan setup.

Which is why I give this idea a C+

3.)Then there is the 90% outtake + 10% intake theory which is displayed in Salvanos second picture.

I think this is one of the best ideas because the TWFIII´s exhaust air will be exfiltrated to a 100%.
The only weak point is the intake capability.
A single 140mm intake from the front which is about 3 foot (80cm) away from the gpu´s is just not enough to supply them with sufficient cool air.

The success of this theory depends on how the TWFIII work and what they prefer a good exhaust and can cool on neutral air ..or if they need good exhaust + good intake.
Which leads us to my personal idea

4.)left top 2x120mm exhaust + right top 2x120mm intake + front 140mm intake

In theory this would be the best of all ideas but unfortunetly there are too many flaws and unanswered questions in it.

Will the intake fans suck in the hot/mixed hot air back into the case even though they are very low RPM?

Will the fans even negate each other or will they be able to work independantly?

hmmmm not sure yet

Also please note the 140mm fan option in the bottom of the upper section and top of the lower compartment is where the PSU will be installed ...no fans there^^

It is the Little Devil V8.
But please concentrate on the above mentioned points.
Which setup will be the best?
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post #15 of 30
I see there are vents/fan openings in the lower section of the case.From what I have seen there is a lower section is not a part of the upper section.Is there a way to open it up to the top?That is with out cutting.If possible to do so then it would bring a whole new answer to a good fan setup.
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post #16 of 30
Quote:
Originally Posted by Kung Pow View Post
It is the Little Devil V8.
But please concentrate on the above mentioned points.
Which setup will be the best?
I have used 2 140mm top fans in that config. left exhaust-right intake and it works very well.Intake air is fine like that.

My rec. would be to find some way to add some more intake air on the bottom and front.Those 2 GPU's will add a considerable amount of heat inside.Running the GPU's as cool as possible will be key.I would shoot for something like this
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post #17 of 30
Thread Starter 
The most important question is if I should have more exhaust or intake considering the cooling manner of the Twfin Frozr III.

They exhaust a lot of heat into the case ..so a good exhaust capability is important.

If I set all top fans + rear as exhaust the only intake will be at the front be the 140mm.

The vent from the bottom is where the PSU is supposed to be installed.
And even if I did not put the PSU there and installed a fan ...the radiator is down their and the fan would only blow the hot exhaust air of the rad into the case.

So it comes down to :

1.)4x120mm top exhaust + rear exhaust + front intake
2.)2x120mm left top exhaust + 2x120mm right top intake + front intake


Problems with 1: Maybe too little intake depending on the TWFIII cooling style

Problems with 2:Top fans could negate each other , top intake fan could suck back in the exhaust air from the top exhaust fans.


So what do you think?

The only other options aside these would be :

3.)4x120 top intake + rear intake + front exhaust

Problems 3 :too much intake , long time before hot air can be exhausted , never 100% exhaust capability , positive air pressure does not apply to the TWFIII cooling style I believe because they rather need exhaust than intake.
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post #18 of 30
physic is that hot air comes up...so to try it and push it all the way down to front 1400mm fan wouldnt work good that good.

take as an example silverstone cases - best air cooled cases on market, why?
because they took this simple sentence in mind - hot air raises so why not help him and push it up?

even though you cant push it as in silverstone cases i would try and somehow emulate this...so go for 5x exhaust and 1 intake and I would run intake on highest RPM avaliable or best I would change stock fan for SilverStone Air Penetrator AP141 - so it will directly push the air up..or go for fans like TY140 or Noiseblocker Black Silent PRO-PK3
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post #19 of 30
Quote:
Originally Posted by hawkeeyee View Post
physic is that hot air comes up...so to try it and push it all the way down to front 1400mm fan wouldnt work good that good.

take as an example silverstone cases - best air cooled cases on market, why?
because they took this simple sentence in mind - hot air raises so why not help him and push it up?

even though you cant push it as in silverstone cases i would try and somehow emulate this...so go for 5x exhaust and 1 intake and I would run intake on highest RPM avaliable or best I would change stock fan for SilverStone Air Penetrator AP141 - so it will directly push the air up..or go for fans like TY140 or Noiseblocker Black Silent PRO-PK3
Silverstone FT01 actually had top intake.

post #20 of 30
i was talking about raven 2 evo, F02...
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