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Intake vs Exhaust - Page 4

post #31 of 44
IS your build like this?
LL
    
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post #32 of 44
Quote:
Quote: Technibble.com
Case cooling - the physics of good airflow
Airflow’s good, heat is bad. If you’ve read our article on replacing GPU fans, you already know the dangers of heat and how to prevent its effect locally. However, keeping a computer running coolly isn’t just about placing a giant heatsink on the hotspot - although it undoubtedly helps. Just shifting the same stale air around isn’t going to help keep the components cool, in fact, it’ll only heat them up. So, aside from on-site planning, you need a bit of global planning as well to insure you have a cool computer case. After all, you have a CPU, a GPU and a power supply to cool in there.


Under pressure
One of the most basic principles that is useful in getting that chassis well-ventilated is the so-called pressure rule. There are two factors that contribute to it: one is the position and direction of ventilators, and the other is the “seal” state of the case. In one way, a case can be described as either positive-pressure or negative-pressure. Positive-pressured cases have a larger intake than exhaust, while it’s the opposite for negative-pressured ones. The nature of the airflow can be calculated by adding the rates of flow (in CFM, usually displayed on the fan packaging) of all intake fans and subtracting the exhaust ones - if the result is positive, the case is positively-pressured, and vice-versa. On the other hand, a case can either be permeable or sealed, depending on whether the case has intake and exhaust holes or not.

Continued...
There's more info there, I just don't feel right copying an entire article
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GENE VII
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post #33 of 44
Thread Starter 
Quote:
Originally Posted by ELmo1989 View Post
IS your build like this?
No, my psu is on the top, so less space for an exhaust, and my crappy diagram isn't exactly to scale lol.
    
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post #34 of 44
Quote:
Originally Posted by Grizzly Adams View Post
hot air rises
yes, it does so try to put your exaust fans towards the top of the case.
post #35 of 44
i still dont undestand why computer cases are still in a seal box?
post #36 of 44
Thread Starter 
Alrighty I finished modding my case, I'll have pics up soon so you guys can tell me if I screwed up
Edit:
All Done! Tell me if you guys think this is a good fan setup (sorry about all of the multicolored LEDs lol).

Modded HP case:
LL
LL
Edited by slothfish - 12/21/08 at 3:31pm
    
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post #37 of 44
Looks good to me, cool beans!
post #38 of 44
Thread Starter 
Does anyone have any input as to whether or not this is a good fan setup? What could I do better?
    
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post #39 of 44
ok.. seems to be ok.. or rather too flashy.. neways.. whts the result now? Whts the difference in the temp u getting now? wht temps u were getting b4 ?
    
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post #40 of 44
An easy thing to do would be putting a higher cfm fan on top for an exhaust.
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