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Haf X owners, colder temps when adding 2nd 200mm fan on top? - Page 4

post #31 of 62
Thread Starter 
kahbron....it may be just the picture...but I have the 140 about 4-5 inches away from the front of the noctua fan....so not as close as it appears in the picture....
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post #32 of 62
Quote:
Originally Posted by steven88;12404860 
kahbron....it may be just the picture...but I have the 140 about 4-5 inches away from the front of the noctua fan....so not as close as it appears in the picture....

Ok... Might be just the pix angle like you say. 4-5 inches though "could" still be close enough for that dead spot.

As for turning around the rear exhaust... hmmm not to sure but try it - who knows. Nothing to loose and only cooler temps to gain! The best thing about air cooled setups is that you can try all sorts of different setup with relative ease.
post #33 of 62
Thread Starter 
Hey guys, I am thinking of doing this new setup...

Two 200mm top fans, both INTAKE
One 230mm front fan, factory position INTAKE
One 200mm side fan factory position INTAKE
Three 140mm 5.25 bay fans mounted INTAKE
One 140mm rear case EXHAUST

now, is it bad to push that much intake into a case with having only one exhaust fan? well technically two, since my GPU is rear exhausted and not vented into the case...but you get the point....my rear case fan is a xigmatek CLF 140mm...I think its 63CFM....should I upgrade to something beefy to compensate? Like a 130cfm fan?
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post #34 of 62
Sounds like a very interesting setup, let us know how your temps are affected! smile.gif

I guess our ambient temps can make quite a difference, especially where you are located.

Here's hoping for some positive results!

Oh, and of note... when installing that front top intake... make sure to tuck the cables in neatly.
I accidentally got part of a cable caught and the fan scraped the outer coating lightly.

I guess the first clue should have been when I was trying to close the top panel, and it would not shut properly tongue.gif
post #35 of 62
Thread Starter 
Quote:
Originally Posted by Xinc;12430030 
Sounds like a very interesting setup, let us know how your temps are affected! smile.gif

I guess our ambient temps can make quite a difference, especially where you are located.

Here's hoping for some positive results!

Oh, and of note... when installing that front top intake... make sure to tuck the cables in neatly.
I accidentally got part of a cable caught and the fan scraped the outer coating lightly.

I guess the first clue should have been when I was trying to close the top panel, and it would not shut properly tongue.gif

Do you think its fine to just have one rear 140mm exhaust? I heard it can be bad...I forgot exactly why....if I remember, it was dust issues? Not equal CFM coming in & out and dust settling? Something like that....it could also be related to temp...I forgot the old saying
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post #36 of 62
More cfm coming in than out will normally provide less dust as long as all of the intake fans have filters on them. The higher intake forces the air out of the various cracks and unfiltered openings in the case. If you have more air blowing out instead of in it draws air in through those unfiltered openings pulling in dust from the room.

But there is a point of diminishing returns though. If you have considerably more intake it can overload things causing the air to simply buildup in the case and not move around enough to do any good. Basically more than double the intake than out going air is where you start to run into that problem.
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post #37 of 62
Set your top and back for ehxaust and your front and side for intake.
Rule of Thumb:
Intake air through front and side
Exhaust out top and back

Set it like that and fine tune from there. If you have room mounting a 120mm fan on the inside edge of the HDD cage can help to keep air flowing past them through the front intake vents.
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post #38 of 62
I added the optional 200mm on top as a 2nd exhaust in my HAF-X and while I didn't notice any dramatic difference in temp monitoring (if any, although not an increase), I'm sure it's alleviating some drive heat and doing it's job regardless. Plus the case looks that much better when you add all the red 200mm megaflows! (Or atleast I think so tongue.gif )

topview.jpg
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post #39 of 62
Thread Starter 
Quote:
Originally Posted by PhilWrir;12430227 
Set your top and back for ehxaust and your front and side for intake.
Rule of Thumb:
Intake air through front and side
Exhaust out top and back

Set it like that and fine tune from there. If you have room mounting a 120mm fan on the inside edge of the HDD cage can help to keep air flowing past them through the front intake vents.

this is what i did...did you read OP?
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post #40 of 62
Thread Starter 
Quote:
Originally Posted by PapaSmurf;12430174 
More cfm coming in than out will normally provide less dust as long as all of the intake fans have filters on them. The higher intake forces the air out of the various cracks and unfiltered openings in the case. If you have more air blowing out instead of in it draws air in through those unfiltered openings pulling in dust from the room.

But there is a point of diminishing returns though. If you have considerably more intake it can overload things causing the air to simply buildup in the case and not move around enough to do any good. Basically more than double the intake than out going air is where you start to run into that problem.

what would be your opinion on this setup then

FOUR 200mm fans INTAKE, 110 CFM each
ONE 140mm fan EXHAUST, 63 CFM

is that way too un proportional?
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