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Static Pressure or Air Flow, Need help cooling for my Case :)

post #1 of 22
Thread Starter 
Hello Everyone, i'm using Thor Erosi Hero case, as you can see in the image, it has one 12cm fan front and one 12cm fan back, i want intake front and exhaust back, so static pressure fan or air flow fan should be good for me, or i have to get both ? Because i searched for google and see that some people used air flow for exhaust and static pressure for intake, so i'm a little confused, and if you guys can, can you guys give me some suggestion in which fan i should buy, sorry, i asked too many question, hope you guys can help me out smile.gif
Very very sorry for my bad English, I'm from VietNam smile.gif.

Edited by d2grubby - 7/20/16 at 7:32am
post #2 of 22
Ugh.....fans have both static pressure and airflow. One can not exist without the other. It is really how they interact that matters, and labeling fans as "airflow" or "static pressure" typically means little.

Ideally, a fan capable of good airflow with higher static pressure for the intake to help overcome any resistance. Phanteks F120MP do this very well at a reasonable price, and would work very well as exhaust, also.
Edited by ciarlatano - 7/20/16 at 8:12am
post #3 of 22
Fan ratings are rather stupid.
CFM rating is airflow with absolutely no airflow resistance.
Our cases have at least a grill that can easily lower that airflow rating by 10-20% .. a fancy front grill and filter can lower by 50%, especially if fan is not running a maximum rpm
Static Pressure rating is amount of pressure fan can build when air stops moving .. as in no airflow at all.
Nobody in their right mind uses a fan with no airflow.
This might help
http://www.overclock.net/t/1491876/ways-to-better-cooling-airflow-cooler-fan-data/0_20#post_22644574

You might find "Ways to Better Coolong" link in my sig of interest. 1st post is index, click on topic to see it. 5th topic is a good place to start.
post #4 of 22
it's simple. Throw two of these bad boys in it and call it a day

http://www.newegg.com/Product/Product.aspx?Item=N82E16835608052
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post #5 of 22
Quote:
Originally Posted by d2grubby View Post

Hello Everyone, i'm using Thor Erosi Hero case, as you can see in the image, it has one 12cm fan front and one 12cm fan back, i want intake front and exhaust back, so static pressure fan or air flow fan should be good for me, or i have to get both ? Because i searched for google and see that some people used air flow for exhaust and static pressure for intake, so i'm a little confused, and if you guys can, can you guys give me some suggestion in which fan i should buy, sorry, i asked too many question, hope you guys can help me out smile.gif
Very very sorry for my bad English, I'm from VietNam smile.gif.

First, welcome to OCN. Second, your English is fine (it's actually better than many native English speakers). Third, you did not ask too many questions; one reason for these forums is for people to get their questions answered. thumb.gif

Strictly speaking, exhaust fans (your rear fan in your case) are normally air flow fans. If the intake fans are pulling air through a filter or have to blow air through a drive cage, static pressure fans would be used. However, since both kinds of fans create air flow and static pressure, you can use the same kind of fan both front and rear. In your case, I would just use static pressure fans for both the front and rear fans. Both the fans recommended by AMDATI and ciarlatano should work well for you. This fan is another one that is often recommended: https://www.amazon.com/gp/product/B00OP2PUB8/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
     
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post #6 of 22
Quote:
Originally Posted by Lady Fitzgerald View Post

First, welcome to OCN. Second, your English is fine (it's actually better than many native English speakers). Third, you did not ask too many questions; one reason for these forums is for people to get their questions answered. thumb.gif

Strictly speaking, exhaust fans (your rear fan in your case) are normally air flow fans. If the intake fans are pulling air through a filter or have to blow air through a drive cage, static pressure fans would be used. However, since both kinds of fans create air flow and static pressure, you can use the same kind of fan both front and rear. In your case, I would just use static pressure fans for both the front and rear fans. Both the fans recommended by AMDATI and ciarlatano should work well for you. This fan is another one that is often recommended: https://www.amazon.com/gp/product/B00OP2PUB8/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

That was actually the fan I recommended in the second post. thumb.gif
post #7 of 22
Quote:
Originally Posted by ciarlatano View Post

Quote:
Originally Posted by Lady Fitzgerald View Post

First, welcome to OCN. Second, your English is fine (it's actually better than many native English speakers). Third, you did not ask too many questions; one reason for these forums is for people to get their questions answered. thumb.gif

Strictly speaking, exhaust fans (your rear fan in your case) are normally air flow fans. If the intake fans are pulling air through a filter or have to blow air through a drive cage, static pressure fans would be used. However, since both kinds of fans create air flow and static pressure, you can use the same kind of fan both front and rear. In your case, I would just use static pressure fans for both the front and rear fans. Both the fans recommended by AMDATI and ciarlatano should work well for you. This fan is another one that is often recommended: https://www.amazon.com/gp/product/B00OP2PUB8/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

That was actually the fan I recommended in the second post. thumb.gif

Oh, good grief! doh.gif I'm completely losing it in my old age. Sorry!
     
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post #8 of 22
Rule of thumb... have positive pressure, at the very least. Meaning more fans blowing air in than fans sucking air out. Why? Run negative pressure for a while as see how much dust goes through the cracks tongue.gif
post #9 of 22
Quote:
Originally Posted by emeianoite View Post

Rule of thumb... have positive pressure, at the very least. Meaning more fans blowing air in than fans sucking air out. Why? Run negative pressure for a while as see how much dust goes through the cracks tongue.gif

I run extreme negative pressure, I'm talking 200+ CFM more than intake, and while I do get more dust on my intake filters, it doesn't really end up in the case, and that's with various small holes here and there in my case. Exhaust fan, heatsink, etc....don't need dusting at all.
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post #10 of 22
Quote:
Originally Posted by AMDATI View Post

Quote:
Originally Posted by emeianoite View Post

Rule of thumb... have positive pressure, at the very least. Meaning more fans blowing air in than fans sucking air out. Why? Run negative pressure for a while as see how much dust goes through the cracks tongue.gif

I run extreme negative pressure, I'm talking 200+ CFM more than intake, and while I do get more dust on my intake filters, it doesn't really end up in the case, and that's with various small holes here and there in my case. Exhaust fan, heatsink, etc....don't need dusting at all.

Unless you are running a pretty much dust free environment, that simply can't be true.
     
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ASUS Xonar Essence STX Virtual 7.1 Channels 24-... LSI 9211-8i HBA card HooToo® HT-CR001 3.5" PCI-E to USB 3.0 Multi-in... StarTech HSB220SAT25B 2 Drive 2.5in Trayless Ho... 
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Samsung 850 EVO 4TB SSDs Samsung 950 Pro 512GB m.2 SSD boot drive Noctua NH-D15S Cpu cooler Win 7 Ultimate 
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