Thank you!

The main problem is with the top fan. The stock fan is sleeve and when you hold it horizontal, you can feel that the fan is generating much more viberations than when you hold it vertical. So I need the fan what is generating the less viberation as possible.

I want to replace the Antec fans of the Antec P183, because they are too noisy and the top fan is resonating a lot which make the top of the case resonating and humming. I read in the reviews here that sleeve fans are not usable for horizontal mounting? Why? I saw that the Scythe Slipstreams are ver...