Quote: Originally Posted by
DaKine73 
well i have so far 1 intake . front bottom and 2 out back and a modified top. with the modified door intake to the cpu.
so i got a good negative pressure going in the case. so the question arises ....bigger fan the better... but as an intake or extractor?
why would you want a negative pressure in the case mate..??, you want to aim for a positive pressure for air movement.... IMO
a ''negative'' pressure....(more out than in), will actually draw air in through every nook & cranny in the case, this will coat the mobo in dust in areas which are a pig to get to, it wont affect cooling ability its just a nightmare for dust management.
a ''positive'' pressure (more in than out), will keep air out of the cracks & only draw it it through fan vents...... this is especially handy if you have dust filters....
so as a rule of thumb, i will always have more intake chassis fans than exhaust...
SK