Just so you know, that rating is complete BS. No 120MM fan on the market will hit 90 CFM @ 18 dBA. Also, Silenx fans are rather sub-par. From the reviews I've seen, they don't perform well.
The Prolimatech Megahalems have very densely packed fins like the TRUE. This means that you need a fan with a high static pressure rating. Look for the 120mm x 38mm, rather than the 120mm x 25mm fans. The Scythe Ultra Kaze is an example.
The Prolimatech Megahalems have very densely packed fins like the TRUE. This means that you need a fan with a high static pressure rating. Look for the 120mm x 38mm, rather than the 120mm x 25mm fans. The Scythe Ultra Kaze is an example.
Static pressure is the amount of air pressure a fan can push. You can have a fan that moves 100 CFM, but if the fan has low static pressure not very much of that 100 CFM will get through a heatsink.
The Ultra Kaze has 46dbm compared to the #2 choice with 32dmb. Yes the Kaze will put out more CFM but at what price? I mean I dont want my PC to sound like a rocket... Will I be able to tune down the Kaze using MOBO power connector? Or will the #1 is also a good selection and I should just go with that?
EDIT:
I looked at some reviews for the "ULTRA KAZE" and it does a great job cooling but the noise it emits is just very loud! Are there any suggestions for what to get?
I'm thinking about Scythe DFS123812-2000 120mm Case Fan - Retail 87 CFM 32 dBA 2000 RPM what you guys think?