Proper air flow

HOTRODr418 · Feb 10, 2014

I have this case: http://www.amazon.com/gp/product/B00166KBDS/ref=oh_details_o09_s00_i00?ie=UTF8&psc=1

I have recently added 2 120mm fans. One intake and one exhaust. There is also a huge side fan, blows are in slowly. I also installed a pci slot exhaust fan under my GPU.

Do you think this is good enough? not enough? Give me some feedback

Devin Mann · Feb 10, 2014

Thats fine, all you really need is one intake one exhaust, and whatevers on your cpu and gpu

James Mason · Feb 10, 2014

Mmm, Where did you add those new fans?

Really, you only need 1/2 exhaust fans, and they should be either located on top or in the rear, and all other fans should be intake. (any excess air can escape from the various cracks in your computer case, and the exhaust fan helps direct air out.)
The reason the big fans are good is because they can move alot of air without having to spin to fast, and they make great exhaust ports like at the top, but yours is on the side.

P1nnacle · Feb 10, 2014

That should be fine, if you're worried read into this article.

nukemaster · Feb 10, 2014

Remove all pci slot covers(replace the with vented ones if you wish) and let the large side fan deal with your main cooling.

So 120 and 250 in 120 out(power supply out as well). With all the pci slots open, air fill flow out without needing a slot blower.

This is a positive pressure system.

Now you are HIGHLY recommended to replace that stock power supply(chances are it is an older unit with unsuitable 12 volt power for modern systems.)

If you are a modder, cut out that rear restrictive fan grille to improve cooling. Use a wire grille on the outside if you are worried about someone getting a finger in the fan.

HOTRODr418 · Feb 10, 2014

I added a 120mm fan to the bottom front of the case, a 120mm fan to the back top under the power supply, and an exhaust fan, pci slot type, under my GPU. The side fan was there obviously.

HOTRODr418 · Feb 10, 2014

I just figured if i have a fan in the front and side, the the two exhuast fans, top and bottom of the case should be enough to circulate air around and keep things cool.

P1nnacle · Feb 10, 2014

HOTRODr418 :

Don't exhaust out of the bottom of your case. Best way is Exhaust out fo the back and top, intake through the front and bottom.

nukemaster · Feb 10, 2014

Front(front lower section) and Side(250mm fan) should be intake. Back(120) and power supply exhaust.

I still recommend removal of the pci covers for extra air flow around the video card.

HOTRODr418 · Feb 10, 2014

You are correct for the most part. But the PSU doesnt have a fan taking air out of the case. Which is why i added the PCI fan. For the gpu and case. Also all slot covers are removed

nukemaster · Feb 10, 2014

Are you sure? I have only seen a very small number of power supplies that does not suck air from the case.

All the Broadway Com Corp(OKIA) power supplies I see have the fan pulling air into the power supply and expelling heat out the back. The other trend is having about 24 amps @ 12 volts. This makes it equivalent to a 300-350 watt power supply in modern terms.

This is all find for a basic system.

Example of a bottom fan power supply. Notice it still pulls from the case. I would not want a low efficiency power supply dumping heat on my cpu either way.

James Mason · Feb 10, 2014

Originally, PSU fans only existed because they were the only things actually blowing air into the PC case, and there was at most 2 fans in the desktop type cases (you know DESKTOP, the old flat ones you would put your monitor on top of).
I don't know if they ever changed that design function, PSUs dont/didnt get hot, and thus didnt need the fan to cool them, but to cool the rest of the computer.

nukemaster · Feb 10, 2014

my power supply still cools one of my computers

That poor power supply.

HOTRODr418 · Feb 10, 2014

100% positive. Its older, going on 5+ years now. I have air coming in the front bottom and side, going on out on the rear top and bottom.

nukemaster · Feb 10, 2014

Well as long as it works

I do not think you actually need the pci blower, but it can not hurt things.

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Proper air flow

HOTRODr418

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P1nnacle

Devin Mann

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James Mason

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P1nnacle

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nukemaster

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HOTRODr418

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HOTRODr418

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P1nnacle

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nukemaster

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HOTRODr418

Honorable

nukemaster

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James Mason

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nukemaster

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HOTRODr418

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nukemaster

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