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Swap top fan for intake rather than exhaust? - Page 3

post #21 of 26
Quote:
Originally Posted by Lost-boi;11885176 
Only without fans. Once you add fans that statement doesnt matter. You push the air where you want it. I wish people would get this "hot air rises" out of their head.

... and a +1 to you for an accurate rebuttal. smile.gif

I only have 1 fan intake from the bottom, so I can't really pull air in from the bottom efficiently. So what i have is a massive push pull army of fans above the case 4 x 120 > 2 x 140 > 2x 120.

It's a similar situation to what the other dude with the HAF X said.

Maybe 5th graders blindly push air up with no questions asked... but that's why they are in 5th grade.

Chris
    
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post #22 of 26
Quote:
Originally Posted by Lost-boi;11885176 
Only without fans. Once you add fans that statement doesnt matter. You push the air where you want it. I wish people would get this "hot air rises" out of their head.


Hot air does have a tendency to rise, so why go against how air natural flow? your case isn't going to burst into flames no matter what your ridiculous fan setup is. the fact is you will have better airflow if you have your setup the way the manufacture has it on most cases.. Exhaust =top/rear and intake= front/side

If you have no other choice as to fan options I guess I would do an intake at the top, otherwise no point
post #23 of 26
Air goes where you push it.

Heatsinks cool better when the air they are transferring cpu heat to is as cool as possible. The warmer that air is, the warmer the cpu will be.

If you can, you present your heatsink with the coolest air possible. Often that means bringing air in from the top of the case. In OP's case, that is not possible. If I were OP, I'd get a better case. Failing that, OP has a rational cooling plan.

-- says the former owner of an Antec 4480 II, aka "the tomb." Gave it away, cheerfully. Good riddance.
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post #24 of 26
Quote:
Originally Posted by blkdoutgsxr;12190514 
Hot air does have a tendency to rise, so why go against how air natural flow?


If you google "why does hot air rise" there is a nice assortment of folks discussing the topic (to death).

Even if you can't beat the laws of physics, you can cheat. You are dealing with such insignificant forces when it comes to both the inside of your PC & the environment that your computer is in that you can get away with doing unorthodox things like cooling your machine from the top down.

It all depends on the your computer and the environment to determine what you can and cant do, so to blindly assume that you should have the fans set one way and not the other is somewhat naive.

Do whatever and see what works best.
    
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post #25 of 26
Quote:
Originally Posted by MetalBeerSolid;11875610 
Right, I'll try out the H70 as intake.

Also, since my GPU is just a bare heatsink (blows hot air all over the case) and not shrouded, when I had the side fan as intake, my GPU temps actually got worse than with no fan.

Is your cpu even running hot enough to make it worth dumping all of that heat into the case? I would start with making your side fan an intake fan which is kind of the standard configuration. The top fan set to intake might help too. I know thats how the original silverstone fortress is setup.

You are better off with more positive airflow since there is less chances of dead spots with no moving air in the case.
Edited by BababooeyHTJ - 1/29/11 at 4:51pm
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post #26 of 26
Quote:
Originally Posted by Lost-boi;11885176 
Only without fans. Once you add fans that statement doesnt matter. You push the air where you want it. I wish people would get this "hot air rises" out of their head.

100% correct. There are only a few us here with enough common sense to know this is exactly why we install case fans in the first place.
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