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Air flow plan - Page 2

post #11 of 26
Thread Starter 
Ahh. Thanks a lot all! Rep'd.

LAST question though. should the fan in the back be the same as the one on the CPU? So it wouldn't bog one another down?
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post #12 of 26
Quote:
Originally Posted by vinton13 View Post
Ahh. Thanks a lot all! Rep'd.

LAST question though. should the fan in the back be the same as the one on the CPU? So it wouldn't bog one another down?
Won't matter as much if your heatsink airflow points up (toward the top exhaust). If it points sideways (towards the back) then it's up to the laws of thermodynamics.

My take (and I'm not exactly Richard Feynman) is that a slower fan pushing and a faster fan pulling will work well, while the other way around will cause a buildup of hot air between the back of the heatsink and the exhaust fan. But like I said, that's hardly gospel. I could be completely off my rocker.
Edited by Dorkseid - 3/30/11 at 10:36am
post #13 of 26
Thread Starter 

Lol. Cheers thanks. Will have to move that fan and put one of the new ones on the back since I'm using Blade Masters on the CPU. Don't want to face the heatsink up as I may have to remove RAM.

Ordered these fans

, claims to have better airflow compared to the Blade Masters, but I know they're loud, fan controller on the way to fix that.

Thanks all.
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post #14 of 26
I should say, also, that having both fans match is ideal. But that's obvious...
post #15 of 26
Quote:
Originally Posted by Daris1015 View Post
Personally i think you should have the two top fans blowing out as exhaust and the the 2 front and the 2 bottom as intake. I would also have it so your heat sink is vertical so it blows up to the top exhaust. this way you always have fresh air moving through your case. on both of your plans its going to keep stale air in the case. if you cannot change the direction of your heat sink have the exhaust face the back rear fan. You will defiantly see much better temps this way.

Also, If your case is compatible id suggest a 200mm for the top. they are awesome exhaust fans wile staying whisper quiet.

clean that pesky fan dust off and tighten up those wires and you'll be lookin FRESH!
Some sort of a plan like this; but I wouldn't face the heatsink to blow out the top. The momentum of the air coming in from the front would be best suited to flow through the fan in the heatsink, out the back of the computer,
but i'm also thinking there might be some turbulance with the fans on the bottom.

EDIT: After thinking about this it doesn't really matter which direction you choose to face the heatsink since you have two fans fighting two fans, but I think if you had the fans on the bottom turned off you'd have more airflow going through the heatsink if it was pointed to exhaust behind the computer.
post #16 of 26
Quote:
Originally Posted by Frosty288 View Post
Some sort of a plan like this; but I wouldn't face the heatsink to blow out the top. The momentum of the air coming in from the front would be best suited to flow through the fan in the heatsink, out the back of the computer,
but i'm also thinking there might be some turbulance with the fans on the bottom.

EDIT: After thinking about this it doesn't really matter which direction you choose to face the heatsink since you have two fans fighting two fans, but I think if you had the fans on the bottom turned off you'd have more airflow going through the heatsink if it was pointed to exhaust behind the computer.
wont make a diffrence the fan on the hs is the only deciding factor
post #17 of 26
i used 3rd option, dunno if you can do this
http://img820.imageshack.us/img820/4044/img1127su.jpg
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post #18 of 26
I wouldn't mount the heatsink vertically as the front fan would be sucking up warm air from the back of the GPU.
OP: A front intake in the drive cages and an intake on the first top fan mount (one closer to the front of the case) will be sufficient for the heatsink.
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post #19 of 26
use 1 top fan only. and use it as intake.

cover the 2nd top slot to insure no air is leaking out/causing disturbances.

bottom fans should always be intake.

cut out the back slots for the fan and take the fan out. the heatsink's fan should be strong enough to just blow straight through. if the heatsink's fan are a bit stronger than the back exhaust, wouldnt the air just sit there and wait until the exhaust...well, can exhaust it out?

so to insure no variability, i would not use an exhaust fan and just stick with the heatsink fans.
    
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post #20 of 26
Quote:
Originally Posted by StealthRuler View Post
i used 3rd option, dunno if you can do this
http://img820.imageshack.us/img820/4044/img1127su.jpg
Wouldn't using the rear fan as an intake draw in hot air that just went out of the top vents? Depending on the case and the desk/furniture situation, of course (cover above makes it worse), but if it's indoors there won't be a whole lot of movement of the hot air away from the top and back area, and then it gets sucked in again...?
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