Should this fan be intake or exhaust? - Overclock.net

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post #1 of 10 Old 03-31-2008, 11:57 PM - Thread Starter
 
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I have the Rocket Fish case from BB and it came with this fan box that sits over the cards as seen in pic. It's set up to exhaust but I was wondering if it might be better to have it intake since this case only has 1 intake and the rest exhaust and then also the PSU exhaust? Thanks for any help!!

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post #2 of 10 Old 04-01-2008, 03:13 AM
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CFMs intake should be about equal to CFMs exhaust, and it's nice to have an intake blowing right onto your CPU cooler.

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post #3 of 10 Old 04-01-2008, 03:20 AM
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What about a 'positive pressure system' to keep the dust out? =P
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post #4 of 10 Old 04-01-2008, 04:20 AM
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I tend to like negative pressure myself. Air will come into your case through gaps in the panels, in around your IO shield, the drive bays, etc. The more cool air into your case the better.

In my eyes having positive pressure just means that you have a bunch of warm air circulating in your case bringing that temperature up.

Why have warm when you can have cool?


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post #5 of 10 Old 04-01-2008, 04:24 AM
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I just has fans that blow everywhere

N the side of my case is honeycomb, so its like havin the side off 24/7 =)
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post #6 of 10 Old 04-01-2008, 04:30 AM
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I'd say intake on that one since its over your video card pretty much but also I agree with negative pressure pumping the hot air out and drawing in cool air.
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post #7 of 10 Old 04-01-2008, 04:35 AM
 
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i say keep it exhaust so it will pull the hot air coming off your cards

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post #8 of 10 Old 04-01-2008, 07:52 AM
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Wah! I can't believe I didn't look at the pic before I made my post. While I'm still a firm believer of negative pressure based on where that fan is I'd say make it an exhause because those cards will pump out some serious heat.


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post #9 of 10 Old 04-01-2008, 08:58 PM
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I just has fans that blow everywhere

N the side of my case is honeycomb, so its like havin the side off 24/7 =)

One better. My side IS off 24/7..wait, nevermind...I don't even HAVE any sides on my case As for the fan, it's up to you. If it drops temps, yay, if not o well.

Edit: There is one situation where positive pressure would realise cooler temps, and that's only when your side consists entirely of a 508MM AC powered fan spamming air into your system. I actually got a dell case to 'inflate' with mine, it was hilarious. The side panel I left on it actually bulged outwards from all the air spam

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post #10 of 10 Old 04-02-2008, 12:31 AM - Thread Starter
 
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I went ahead and made the fan intake but it does work better as an exhaust. I think it's because it's catching some of the heat coming out of my psu and where it is positioned next to my desk. Thanks for all the feedback!!

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