Arctic P Series fans which I'm not particularly fond of, they look cheap (They were) and although they are very quiet up to a certain RPM they get very loud after it
depends on which p-series fan you got.
the pwm pst (non-co) have fluid dynamic bearings
the pwm pst co have ball bearings
so in theory the non-co fans should give a better noise profile
the arctic fans may be cheap, but they are a very decent bunch of fans. you wouldn't gain much by changing them. more of a side-grade than anything else.
my case fans are specific to my usage as i've got a SFF box.What fans do you have?
1x noctua nf a-15, 2x silverstone SST-FN124B (slim fans that came with the case)
when i had a battlebox - i was using the scythe gentle typhoons (grand daddy of case fans lol)
