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Recycled air vs. a bit more rad..? - Page 3

post #21 of 40
The problem is the orange arrows should actually be more red. The front rad is probably using up around 70% of the air's heat capacity and in push pull those 6 fans will posotively pressure the case a fair amount. The rear fan as intake will be drawing hot air from the PSU anyhow. The only cool air add is the bottom fan. in the end your top rad will probaly be trying to cool air that is 50% or so used up making it effectively a single radiator. That is not bad, but you would probaly do a little better reversing the top rad or going push pul with a single on bottom where you can really get cool air intake.
    
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post #22 of 40
Quote:
Originally Posted by JoeTesla View Post

ooook wait a second.

this is getting out of hand smile.gif

Let's assume i'm not going to use my single 120 rad at all.

Front rad has push pull fans as intake, top rad has pull fans as exhaust.
Fresh air from bottom of case + top rear of the case won't be enough ?

Everything is filtered.

Fans throught a rad dont move as much air. However, I would somewhat put a push/pull rad on par with a case fan.

So you still have two fans and three rads in P/P pushing air in and only two rads in push alone exhausting. That is positive pressure, but way too much of it.

Get all your rads to exhaust and the bottom and back fans to push in air. Those two intake fans are further away from you and somewhat muffeled by the case. So turn them up as fast as you can tolerate noisewise. Make sure those two 140mm intake fans have good cfm and pressure too. You might be able to get some positive pressure this way depending on your rad fans speed. Isn't there any way you can get more intake fans on the side panels maybe? But so far, we are still.pulling back in the PSU's hot air.

I'm still liking my koolance rad bracket idea. With that, you would get more fresh air into your rads, you get to add your 120 rad and you can better achieve positive pressure.
Edited by PepeLapiu - 2/5/13 at 7:30am
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post #23 of 40
Thread Starter 
I don't want an external rad.
I do have the 200mm side fan that came with the case, could use that as another intake.


or, use the top 140 fans as intake, then the top rear + side fans as exhaust ?
Edited by JoeTesla - 2/5/13 at 7:33am
    
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post #24 of 40
Quote:
Originally Posted by JoeTesla View Post

ooook wait a second.

this is getting out of hand smile.gif

Let's assume i'm not going to use my single 120 rad at all.

Front rad has push pull fans as intake, top rad has pull fans as exhaust.
Fresh air from bottom of case + top rear of the case won't be enough ?

Everything is filtered.

You'd then have 5 intakes and 2 outs? I'd try and balance it more
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post #25 of 40
If you have an other 200mm fan to play with, that helps a lot.

You really should have both rads either intaking or exhaust air. Otherwise, one of them is feeding it's hot air to the other.

Also any bottom exhaust is likely to rise as hot air rises. So bottom exhaust will get trapped back in by higher intake fans or rads. The PSU is exhausting hot air which is likely to get trapped back in, but there is really nothing we can do about that.

So have all your fans intaking air: back, side and bottom fans all intaking at highest tolerable RPM. Then, have all your rads exhausting air out the top and front.

I don't think your spare 120mm rad will be very useful but it would be more effective on your loop than in your closet. So feel free to slap that puppy in instead of one of your intake fans,. That spare rad should be intaking air in push/pull IMHO.
Edited by PepeLapiu - 2/5/13 at 8:12am
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post #26 of 40
Thread Starter 
Spinning the front rad+fans is going to be a b!tch.. I'll see if that can work...

Haivng the top fans as intake is a lot easier.. also kinda makes sense since I have the machine right under a window.. so if I open the window I can see cold (very cold.. it's cold here!) air going down through the top rad and helping things. But then I'll only have the top rear + 200mm side fan as exhausts..

Well spinning fans around is easy enough so I can test and see for myself.

Thanks!
    
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post #27 of 40
I can see how reversing that front rad would be a PITA as you have a filter on it, right? ...right!

Your cold window air is likely sliding down the wall and crawling to the floor. So back, side and floor fans all intaking is still a best choice while all rads exhausting. Gonna hafta play around with fan speeds to ensure some positive pressure.

That's why I like my STH10 case, it makes so much easier to design the airflow for case and rads since the rads are in separate chambers from the mobo.
Edited by PepeLapiu - 2/5/13 at 9:17am
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post #28 of 40
Thread Starter 
Heh.. I have filters, reservoir, a pump, and a HDD mounted on the thing. lol. Front rad ain't going nowhere.

New rad is coming in on Thursday. I will play around and see what's what.

And yeah a STH10 isn't exactly a 500R smile.gif This was definitely NOT the best choice for a water cooling case but I got this computer for my birthday from my wife. And since I wouldn't let her pick any of the hardware, least she could do is pick out a case! lol.
    
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post #29 of 40
That's okay. Just give me that one and get a better one........the wife I mean. biggrin.gif
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post #30 of 40
Thread Starter 
No. It's mine. Get your own.
    
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