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Did I position my fans correctly? - Page 2

post #11 of 21
Quote:
Originally Posted by vdn20 View Post
Same here. My understanding was that the top should be an exhaust because hot air rises.

Air will always go where fans want them to.
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post #12 of 21
Quote:
Originally Posted by b3machi7ke View Post
meh, you don't really need a filter...i've got three cats at my house, always hanging out in my office/computer room, two of them long-haired...the filter for fans, imo, are completely unnecessary, unless you've got a problem cleaning your computer out with air every couple three weeks

I would have to agree with you on that one.

EDIT: Sorry, Double Post.
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post #13 of 21
Top: Exhaust (Hot air rises! Don't try and fight it)
Rear: Exhaust (unless you have an AIO cooler, then intake works better on the rad)
Front: Intake (big/fast fans are good here, more cool air coming in)
Side: Intake (don't really use these myself, too much dust coming in)
post #14 of 21
Did you model all of that just for your fan lay out?
post #15 of 21
Quote:
Originally Posted by xTweetyBird View Post
Top: Intake
Doesn't make sense if the goal is to exhaust hot air(that rises) as quickly as possible, as a windtunnel scheme(front bottom intake - top rear exhaust). But the advantage of blowing cool air from the top directly onto the socket area may balance it out, at least for CPU/VRM temps.

This scheme would cause airflow turbulence in the case though, and leave more heat lingering in the lower part of the case around the GPUs/NB and HDD area for longer, also if the rear is the only exhaust it will be bottlenecked by all those intakes causing excessive positive pressure in the case.

Kind of a toss up, depending on which parts you want to get faster airflow to.
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post #16 of 21
Thread Starter 
Quote:
Originally Posted by =≡G≡=Thèõdé100 View Post
Did you model all of that just for your fan lay out?
No, all the components with the exception of 2 case fans are to scale. I made it to make sure everything fits nicely together. I was also originally going to run it through thermal simulator to find optimal fan settings but decided that's a bit excessive.

EDIT: Plus, is there anything more fun than virtually plugging in a GPU to a PCI-Express slot?


Edited by nezzarix - 7/29/11 at 12:54pm
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post #17 of 21

Here is another example.



The only thing different is that they don't have a side intake.

EDIT: Watch the whole video, thermals are towards the end.
Edited by xTweetyBird - 7/29/11 at 12:54pm
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post #18 of 21
To all those people saying top has to be exhaust because hot air rises, maybe you should just try it. It's not like it's that hard to turn a fan around. I will admit that depending on your situation, especially case and graphics solution, it may not work. But it can be ridiculously good. When I had a single blower card, having top intake dropped my CPU temp by 5C. That's not chump change; that's real benefits. Just try it, and don't knock what other people can benefit from.
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post #19 of 21
Quote:
Originally Posted by xTweetyBird View Post
Here is another example.

http://www.youtube.com/watch?v=Qe-2ZqmSGug


The only thing different is that they don't have a side intake.

EDIT: Watch the whole video, thermals are towards the end.
Uh..side intake fans are a major factor, IMO. My case has a 220mm side intake fan, blowing in some good air. That would totally offset the air circulation and balance, I would think.

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post #20 of 21
Thread Starter 
Quote:
Originally Posted by a pet rock View Post
To all those people saying top has to be exhaust because hot air rises, maybe you should just try it. It's not like it's that hard to turn a fan around. I will admit that depending on your situation, especially case and graphics solution, it may not work. But it can be ridiculously good. When I had a single blower card, having top intake dropped my CPU temp by 5C. That's not chump change; that's real benefits. Just try it, and don't knock what other people can benefit from.
5C? I've been dreading flipping that fan since I have to take out my motherboard but now I'm looking forward to it for that possibility I was expecting 1-2C max. Hope I have as much luck as you did.

xTweetyBird, thanks for the links.
Edited by nezzarix - 7/29/11 at 1:56pm
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