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Top Exhuast vs Top Intake - Page 3

Poll Results: Which one is better?

 
  • 14% (21)
    Top Intake
  • 85% (127)
    Top Exhaust
148 Total Votes  
post #21 of 59
Quote:
Originally Posted by GlockZoR IV View Post
Scythe 3k fans are for people too afraid to get Delta fans

hehehe my fan can re-pressurise a scuba tanks
AFB1212EH
Or people who can not see themselfs spending 25+ on a single fan when I can get 2x or 3x or in some cases *(When you catch a sale)* 4x 100+ CFM fans for the same price. I am too much of a hebrew to spend that kinda bucks on a single fan

Quote:
Originally Posted by Nocturin View Post
What he said.

Heat may rise, but what matter more than the simple fact of the rising is the flow is which the rising takes.

Convection ovens are a poor example of an analogy for a computer case, but the principle is the same.
A very poor example. But he hit this discussions nail on the head
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Frankenstien
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post #22 of 59
Quote:
Originally Posted by 8-Bit View Post
Or people who can not see themselfs spending 25+ on a single fan when I can get 2x or 3x or in some cases *(When you catch a sale)* 4x 100+ CFM fans for the same price. I am too much of a hebrew to spend that kinda bucks on a single fan
nahh i got it for a tenner on the 'bay


like the best deal EVARRRR

if i were to sell it i could get £50 easy
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Triggers broom
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post #23 of 59
200mm top intake - 110CFM
2x 200mm bottom front intake - 110CFM each
120mm 5 1/4" bay intake - 39.7CFM
120mm 5 1/4" bay intake - 133.6CFM
140mm bottom intake - 50CFM
4x 120mm (AP-121) intake - 35.36CFM each

120mm rear exhaust - 133.6CFM

heatsink:
120mm - 133.6CFM/140mm - 74CFM (push/pull)
140mm - 74CFM (pull)
Edited by tw33k - 7/1/11 at 3:54pm
post #24 of 59
a top intake might make your CPU a degree or two cooler because it would feed ambient air near directly to your CPU heat sink...but it would also mean you are blowing all the CPU heat into all your other components.

Top exhaust...definately. No meager CPU temp drop is worth the consquensces.
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post #25 of 59
Quote:
Originally Posted by tw33k View Post
Heat won't rise if you have fans pushing it somewhere. That's the whole point of case fans.
This... is not true. Heat will still go up. In most cases (no pun intended) it is better to have exhaust on top and back. As posted before, I would work with natural physics and go with the flow. Up and out!
post #26 of 59
Why not try it and see? Personally, because of how i have my heatsink, i would point it facing out just for the fact of pushing in the same direction as my heatsink fan. I suppose the correct answer would depend on the application.
post #27 of 59
Quote:
Originally Posted by tw33k View Post
200mm top intake - 110CFM
2x 200mm bottom front intake - 110CFM each
120mm 5 1/4" bay intake - 39.7CFM
120mm 5 1/4" bay intake - 133.6CFM
140mm bottom intake - 50CFM
4x 120mm (AP-121) intake - 35.36CFM each

120mm rear exhaust - 133.6CFM

heatsink:
120mm - 133.6CFM/140mm - 74CFM (push/pull)
140mm - 74CFM (pull)
What? Type louder. Your fans are so loud I can't even READ your post. Seriously...I bet you could get rid of half of them, turn your top intake to an exhaust, and your temps would all stay about the same. Your CPU temp would go up your 2°, but I wouldn't be surprised to see your mother board temps drop and possibly your GPU
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post #28 of 59
Quote:
Originally Posted by Vagrant Storm View Post
What? Type louder. Your fans are so loud I can't even READ your post. Seriously...I bet you could get rid of half of them, turn your top intake to an exhaust, and your temps would all stay about the same. Your CPU temp would go up your 2°, but I wouldn't be surprised to see your mother board temps drop and possibly your GPU
That's not correct. I've tried every possible scenario and this is what gives the best temps.
Also, it's not loud at all.
post #29 of 59
Quote:
Originally Posted by tw33k View Post
200mm top intake - 110CFM
2x 200mm bottom front intake - 110CFM each
120mm 5 1/4" bay intake - 39.7CFM
120mm 5 1/4" bay intake - 133.6CFM
140mm bottom intake - 50CFM
4x 120mm (AP-121) intake - 35.36CFM each

120mm rear exhaust - 133.6CFM

heatsink:
120mm - 133.6CFM/140mm - 74CFM (push/pull)
140mm - 74CFM (pull)
Me thinks this is too much intake. You can keep all the fans in there, just flip the ones on top into exhaust. The exhaust fan cant keep up with all the intake fans, resulting in a loss of airflow with unneeded noise?
post #30 of 59
Quote:
Originally Posted by Monocog007 View Post
Me thinks this is too much intake. You can keep all the fans in there, just flip the ones on top into exhaust. The exhaust fan cant keep up with all the intake fans, resulting in a loss of airflow with unneeded noise?
Never heard of positive pressure? Also, I've already said that the top as intake keeps things cooler than as exhaust
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