Fan type, depending on push, or pull

[bthitman]

Question on fan choice for *pulling* through a rad. I am looking to use a 240mm rad. 58mm thick. However, some of my other cooling system component choices mean I need to run the fans in ‘pull’ (drawing air from inside the case, through the rad, and exhausting out the back)

Do I need good static pressure fans, or good high-flow fans??

I know that pushing air through a rad; static pressure is the way to go. What about pulling through though?

Cheers.

 

[LuckyBenski]

Still static pressure - the idea is that, push or pull, the fan has to overcome extra resistance. In fact with such a thick rad I'd consider push/pull with fans on both sides if possible. This will add the static pressure to help drive air through the fins.

Depends on fin density largely!

 

[SirConfused]

With a 58mm thick fan static pressure is the most important factor by a country mile. You absolutely want to choose the best static pressure option regardless of push/pull config. If you don't have the room to do both as above then definitely something optimised for static pressure will serve you better than an airflow fan.

 

[bthitman]

Thanks! I will double (triple?) check, but pretty sure I can't fit a push/pull. So I was leaning towards the be quiet! Silent Wings 4 PWM High Speed (https://www.bequiet.com/en/casefans/3701) Seems to have a rather large static pressure number (albeit, at full speed) -> 3.96 mm/H2O at 100% (100% = 2500 rpm)

But they still claim that at 100%, the noise level is still only 31.2 dBA