how to achieve a positive pressure when not enough intake fan locations

aonallah

Commendable
Jan 14, 2017
2
0
1,510
Hello everyone ;
My case has 4 fans location , one front , one rear and 2 top .
I've equiped the only 120mm fan i had on rear , The front can have 140mm or 120mm fans .

So before i buy the fans I thought of asking here how can i realize that positive pressure within the case while occupying all fan locations ?
Since all i can think of is adding one 140mm in front and call it done , but it bothers me to not use the top fan locations .

The case doesn't have any side or bottom fan location .

image of the case : http://img15.hostingpics.net/pics/435924Photo2.jpg



 
Solution
Idea to get positive pressure in a negative pressure optimized case is to run intake fans faster than exhaust fans.

If the fan noise isn't a factor then for intake, get an epic industrial 140mm fan from Nocuta,
pcpp: http://pcpartpicker.com/product/ntXfrH/noctua-case-fan-nfa14industrialppc3000pwm

At 3000 RPM, it delivers 158.5 CFM with 41.3 db (A).

And at the top as exhaust, you can add slower RPM fans with lower CFM, like these 120mm Noctua fans,
pcpp: http://pcpartpicker.com/product/sKzv6h/noctua-case-fan-nfp121300

Aeacus

Titan
Ambassador
Idea to get positive pressure in a negative pressure optimized case is to run intake fans faster than exhaust fans.

If the fan noise isn't a factor then for intake, get an epic industrial 140mm fan from Nocuta,
pcpp: http://pcpartpicker.com/product/ntXfrH/noctua-case-fan-nfa14industrialppc3000pwm

At 3000 RPM, it delivers 158.5 CFM with 41.3 db (A).

And at the top as exhaust, you can add slower RPM fans with lower CFM, like these 120mm Noctua fans,
pcpp: http://pcpartpicker.com/product/sKzv6h/noctua-case-fan-nfp121300
 
Solution