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What Is The Better Fan Setup


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#1 megalo

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Posted 09 January 2006 - 09:05 PM

In my pc i have 2 fans, one 80mm on the side and one 120mm in the back. Im just wondering if switching the back one to 2 80mm fans would be better than having a single 120mm fan and if it would also be better to have 2 80mm fans in the front instead of having a single 120 mm fan. What kind of noise would this create and would it actually lower my pc's temperature. btw im not too concerned about noise, im just wondering if i would be making my pc needlessly loud. Thanks for all the help you guys have given me.

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#2 Dngrsone

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Posted 09 January 2006 - 11:39 PM

80mm fans make more noise and actually a 120mm will move more air than a pair of 80s.
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#3 tg1911

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Posted 10 January 2006 - 09:09 AM

Are the fans Intake, or Exhaust?
Are they at the top of the case, or at the bottom?

Intake fans should be mounted low (bottom - cool air), and Exhaust fans should be mounted high (top-hot air), and located on opposite sides of the case from each other.

If using different sized fans, the Exhaust fans should move more air than the Intakes fans.
Using larger Intake fans will be create positive pressure in the case, which will not move hot air out of the case, but instead, recirculate it around inside the case.

Using larger Exhaust fans will create a negative pressure in the case, which will draw out the hot air, while drawing in cool air.

Edited by tg1911, 10 January 2006 - 09:11 AM.

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#4 megalo

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Posted 19 January 2006 - 09:52 PM

heres what i did and now have: I have one exhaust fan in the back thats 120 mm and its mounted higher up. I have two intake fans, one is in the middle of the side and thats an 80 mm and one thats in the bottom front and thats a 120 mm fan. All of the fans are from aspire and i bought them from newegg. So currently i have more intake than i have exhaust but the bottom front fan has a lot of obstructions in its way such as a ton of wires inside the case and it is blocked in the front by the front panel that has no holes in it. is this an okay set-up? Will hot air just be circulated around the case? Thanks for the help.

#5 jgweed

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Posted 20 January 2006 - 12:08 AM

The best fan set up is to have equally strong and unobstructed fans at the front (lower) and the back (higher) to allow air to flow through the case. The intake fan should also have some sort of filtre, especially if you have animals or more than the average amount of dust.
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#6 megalo

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Posted 20 January 2006 - 04:02 PM

Hey, a couple filters would be nice. Do you know where i can get any? I already checked newegg and didn't find anything.

#7 megalo

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Posted 20 January 2006 - 04:32 PM

Can you also tell me which kind of filter is better aluminum mesh filters, Anodized aluminum filters, or steel mesh filters? thanks

#8 usasma

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Posted 20 January 2006 - 07:30 PM

HEPA filters are best (IMO).
Next best is foam
After that comes the metal stuff.

But, the best indicator is the size particle that they're rated to filter. The smaller the particle the better the filtration.

BUT, then you have to change/clean them more often (they get dirtier quicker) - so it ends up being a balancing act on your part.
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