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What fan(s) should I use?

post #1 of 7
Thread Starter 
On my case I've got a grated area that measures approx. 120mm in length by 88mm wide.

Right now I've got a 80mm fan attached but I feel like I'm not making the most of the area. So, would perhaps 2x 60mm fans work better in place of the 80mm, or maybe one 90mm? I just want to maximize air flow. Thanks.
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ElRigTheRig
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post #2 of 7
you need to know the cfm ratings of the fans you would use.

in general 2 10cfm fans in parallel is as effective as 1 20cfm fan. therefore, in your case:

2 x (cfm of 60mm fan) cf(compare to) 1 x (cfm rating of 80mm fan)

the setup giving the greatest cfm is most effective.
    
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post #3 of 7
Don't forget to watch the CFM. Is this the grate beneath the CPU duct and above the GPU? If so, then I zip tied a 92mm 48CFM fan there to cool my PCI/AGP cards. Attached to my fan controller, it works pretty well. I was able to get an extra 16MHz on my GPU core this way.
post #4 of 7
Thread Starter 
I'll take a look at the CFM ratings and see what would be best.

And yeah its the area right about the video cards. I'm going to be putting the thermaltake hr-03's on my x1900s so I want to make the most of the air.
ElRigTheRig
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ElRigTheRig
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post #5 of 7
Well, don't forget that the higher CFM will mean more noise. My computer sounds like a vacuum cleaner when that fan is on at 12V.
post #6 of 7
Thread Starter 
It cant be much worse than two stock ATI fans. I've got a Zalman fan controller so I should be able to keep it quiet when need be.

Two of these together will move almost twice as much air compared to the single 80mm I've got now. Thanks guys.
ElRigTheRig
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ElRigTheRig
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post #7 of 7
if you have enough room i'd try and get 120mm fans their really cheap like $6 each.. or even 200mm fans..up 2 you..
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my beast
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