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will removing the fan filters on my case let more air in ?

post #1 of 12
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i just did a build inside a thermaltake overseer rx-1 . this is my fan setup 200mm front intake 200mm side intake 120mm rear exhaust corsair h100i with x2 120mm x2 200mm top exhaust push pull configuration . the x2 120mm exhaust fans the corsair h100i comes with are installed on the top inside of my case and the x2 200mm top fans are installed on the outside of my cases frame and underneath the top panel allowing me to have a push pull configuration with 2 different size fans . so my case has negative airflow i removed the fan filters from my case . did i do the rite thing to let more cool air inside my case ?
    
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post #2 of 12
Removing air filters will increase your airflow a bit, but it will also increase dust/crud buildup a lot depending on how much airflow you have and just how much negative/positive pressure present in the case
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post #3 of 12
Thread Starter 
Quote:
Originally Posted by PhilWrir View Post

Removing air filters will increase your airflow a bit, but it will also increase dust/crud buildup a lot depending on how much airflow you have and just how much negative/positive pressure present in the case
my case has negative air flow . dose this mean it will take longer for dust to develop ?
    
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post #4 of 12
Quote:
Originally Posted by orndorf77 View Post

my case has negative air flow . dose this mean it will take longer for dust to develop ?

If im remembering my terminology correctly, Yes
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post #5 of 12
you actually want positive air pressure to keep dust out that means more air going in then the case can vent out so more cfm going in
and lower cfm out. that theoretically causes back pressure to help keep dust from accumulating by some air blowing back out around the fans and other gaps in the case.
post #6 of 12
Quote:
Originally Posted by vedaire View Post

you actually want positive air pressure to keep dust out that means more air going in then the case can vent out so more cfm going in
and lower cfm out. that theoretically causes back pressure to help keep dust from accumulating by some air blowing back out around the fans and other gaps in the case.

This^^

Looks like I had them backwards(again) thumb.gif
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post #7 of 12
we all do that sometimes Phil its human nature.
post #8 of 12
yep you are.
post #9 of 12
Quote:
Originally Posted by vedaire View Post

you actually want positive air pressure to keep dust out that means more air going in then the case can vent out so more cfm going in
and lower cfm out. that theoretically causes back pressure to help keep dust from accumulating by some air blowing back out around the fans and other gaps in the case.

yes positive pressure is what you want

also, having your rad in the exhaust from the interior isn't optimal, you would want to bring fresh air from outside through your rad for better performance. given the amount of fans flow you have, the difference might be minimal. testing would confirm.
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post #10 of 12
Positive pressure stops dust being sucked in through all the little holes and cracks in your case. If you had filters on the intake it would be ideal but depends on which filters you use as some can be quite restrictive.

I think it would be best to ask for advice on which filters do a good job without being too restrictive and allow you to maintain positive air pressure. I dont like filters myself i used them in the past and i took them off as i found them to be affecting temps of my WC loop but i didnt look for good filters i just bought ones that i liked the look of and they must off been a bad choice judging by the difference in temps they caused on my loop.

Good filters, positive air pressure 2cents.gif
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