Want a new PC case. Need advice with achieving Positive Air Pressure.

Lyle_McAwesome

Reputable
May 19, 2015
9
0
4,510
I'll soon be upgrading from a MicroATX case to a Midi ATX to accommodate bigger component (namely a new GPU and motherboard), and I can't think of a way to achieve a positive air pressure. The case I've been looking at is the Corsair Carbide Clear 400C.

To my disposal are:
Antec Khuler H2O 1250. An exhaust-only AIO water cooler.
2 120mm fans. Not static pressure or anything.
3 80mm fans. (Not that they will come to play really, but they're there)
a single 120mm fan that comes with the case, and another 140mm that also comes with the case.

Obviously, if needed, I will buy more fans according to the answer I find suitable.

A link to the case itself:
http://www.corsair.com/en/carbide-series-clear-400c-compact-mid-tower-case

There are a few images that show the case open and even one with airflow currents and also the amount of fans and sized that'd fit in there.

Thanks a lot in advanced,
Lyle.
 
Solution
I think your overthinking this. just go with the stock fans they have set up in the new case. and add more if you have temp problems, which you probably wont.
Positive pressure means more air coming in then going out. By default the case includes a 140 mm front fan and a 120 mm rear fan; therefore it provides a slight positive pressure. To compensate for the cooler that exhausts air, add a second front fan to increase the volume of incoming air. Why would you consider noisy 80 mm fans?
 


Wasn't considering. My current case is Antec P50 Window, which it's back fans are only 80mm, so whether I liked it or not, I had to get a couple. About the pressure, I know what it means... But I am unsure when it comes to using 140mm fans. TBH, just because I can't find ones that would look aesthetically pleasing to me.