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Air flow plan - Page 3

post #21 of 26
Air goes where you push it. Allowing hot air to rise is OK only in your first air plan, where you draw in air from the back.

Always draw the freshest coolest air to give to your cpu heatsink. The traditional plan dates from the time that the mb components like the nb needed more cooling than the cpu. Most modern Intel chips have no more nb. So cool your cpu and your gpu.

First airplan is OK, except that I would cut out your rear grill and remove the rear fan.

Ditto second airplan. On that plan you should disable the rear top exhaust fan, since it compromises the top intake fan. I did mine like this:



Good luck. Have fun. Be sure to try various configurations and compare temps when you do.
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post #22 of 26
Thread Starter 
Cheers. Will try it. Rep'd.
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post #23 of 26
Quote:
Originally Posted by Couch Potato View Post
Front and bottom fans blow in, top and back fans blow out.
CPU fan blows to the back.
I vote for this.

Quote:
Originally Posted by BlahBlahBlah View Post
Air should be flowing bottom to top, front to back!
Just curious, why?
post #24 of 26
Quote:
Originally Posted by Dorkseid View Post
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...?
i draw it becouse iam using now this combination of fans. i placed rear top fan as exhaust, tested, then intake tested, idle same, -1C load. So for me there is no big deal with it. And it cant suck hot air back to the case, becouse hot air is light and goes up to top of your room.
EDIT:
There is no problem to play with direction, amount of fans will be the same, test all combinations so you no wich one is better for you.
Edited by StealthRuler - 3/31/11 at 4:26am
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post #25 of 26
Thread Starter 
Quote:
Originally Posted by Boyboyd View Post
I vote for this.



Just curious, why?
My guess is because the back fans are usually higher than the front fans, and since hot air rises and it's suppose to be from bottom to top, it will push the air upwards and back wards...
But don't take my word for it. I ain't a breeze guru.
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post #26 of 26
Quote:
Originally Posted by ehume View Post
Air goes where you push it.

Always draw the freshest coolest air to give to your cpu heatsink.

Ditto second airplan. On that plan you should disable the rear top exhaust fan, since it compromises the top intake fan. I did mine like this:

Be sure to try various configurations and compare temps when you do.
100% agree with ehume here. I have that same case and played around with a bunch of different combinations. Your second plan is pretty much the exact same way my case currently is, with the exception of the top exhaust fan, and so far it's been giving me my best temps. Get rid of that rear top exhaust fan and you should get great results.
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