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Best way to setup my fans?

post #1 of 16
Thread Starter 
I know the best possible way is to bring cool air into the rad and then the hot air will be expelled into the case. The issue is that I'm only cooling my CPU so that may not be the best way as it will warm up the ram, chipset and video card.

Orange = Fans
Pink/Purple = Radiators (240mm top, 120mm back)

Setup #1 - This is what I'm thinking of doing, the 120mm rad will have cool air while the 240mm rad will act as an exhaust, however there will be a 120mm intake fan near which should bring in cooler air.

336

Setup #2 - I'm thinking this would be the best way to keep all the other components cool, not sure how great it would be for the CPU though

336

Setup #3 - Cool air into the 240mm but pushing all the hot air through a single 120mm fan

336

Setup #4 - Cases aren't air tight, so the hot air will expel from the case somehow...this might really cook up my other components though.

336

Setup #5 - I'm not sure how well this will work, also do I want hot air going out from the bottom of the case?

336
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post #2 of 16
I think #2 looks the best out of all of those. As long as you can get some flow over the motherboard from that top/front fan though. You might be able to do #2, but reverse the rear fan to point inwards if you need a little more.
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post #3 of 16
Setup Number 2 assuming your intakes are filtered
    
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post #4 of 16
#2. Hot air tends to rise, so you want heat going upwards.
post #5 of 16
Thread Starter 
Yes all intakes will be filtered. Hmm, #2 eh? I could do something like this....to ensure cool air goes across the board...basically a double fan setup (air tunnel anyone?).

336
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post #6 of 16
#2 gets my vote. What filters will you be using?
post #7 of 16
Thread Starter 
Not sure of the brand, have a shoe box full of various sizes and brands that I've bought over the years for several rigs. When I order small parts like that I always like to purchase extra for 'just in case' and they get tossed in the shoe box.
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post #8 of 16
#2 is the way to go. It has the "smoothest" flows; air isn't getting all turbulent crashing into each other.
Quote:
Originally Posted by mingqi53 View Post

#2. Hot air tends to rise, so you want heat going upwards.

While this is true, it only works in the absence of other forces. In a computer case, regardless of where the fans are or what direction they blow in, their force will greatly exceed that of buoyant hot air.
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post #9 of 16
2 although I have considered 3 a couple of times.
post #10 of 16
In my situation number 5 gave me the best temps after testing almost every different fan orientation possible with temperature sensors all over the case. However, it was fairly dependent on my own components and placement of the case. The air exiting the rad is only a few degrees warmer than the air entering it so it's rarely an issue of heating up the case too much. Just have to make sure that you have enough exhaust elsewhere. When I first switched from exhaust to intake on the top radiator I still had the rear as exhaust. At that point I had the case right next to a wall and under the edge of a desk and it did lead to a bit of hot air recycling. So in my case I had to switch the exhaust to the bottom front.
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