There s a right way and a wrong way.
Positive pressure fan pc.
In a perfect environment we would have an equal balance between the.
If your case is more or less airtight fan openings excluded the ratio between intake and exhausted air.
Positive pressure the case fans push more air into the case than then pull out so there is more air pressure inside of the case.
Clearly some case fans must be installed to provide a wee bit of air flow.
Cooling fans on a pc case can be installed either as an intake bringing air into the case or as an exhaust moving air out of the case.
2 x 120mm in a pull push config to exhaust on the corsair h50 1 x 200mm front intake 1 x 120mm top intake 1x 120mm side intake.
In simple terms a computer case can either have.
More fans are blowing air out of the case than drawing air in causing a slight vacuum effect.
However no rubber.
Now that the impromptu physics class is over and done with let us get back to the issue at hand.
Much ado about dust.
Whether its positive pressure versus negative pressure or air.
Should you worry about positive or negative pressure.
Positive pressure setup more fans.
In both cases rated noise is 19 db a.
Cooler master fans are pretty good their higher quality fans 120mm fans move 79 to 90 cfm their 200mm megaflow moves about 110 cfm.
The pc is stable and quiet but it s not fit for overclocking.
It s not much but when you re wanting to get the most out of your pc it s wise to choose the best fan for the job.
More fans are drawing air into the case than blowing air out of the case.
Assuming all the fans are the same size and speed then you have one of three possible options for the air pressure inside the case.