Fan Noise Level: Push vs Pull

[KhaderKh]

Hi,

 

Im planning to make some adjustments to my current custom loop watercooling, just want to inquire which fans orientation have the lowest noise without compromising much performance.

 

Push vs Pull?

 

Thanks

[tkitch]

push vs pull makes no significant difference in airflow.  

pull is probably slightly quieter, as the rad will baffle a bit of noise, but I don't know if it'd make that much difference. 

[mr cheese]

In my setup with Noctua NH-A14's on a EVGA CLC 280, with 100% fan speeds the fans were significantly (very noticably) quieter with pull than on push, and temperature remained steady.

[bowrilla]

Pulling through the radiator makes cleaning easier as you don't have to unscrew the fans. The rest is basically irrelevant in most situations. Do your own tests if you're interested. You have alle the material you'll need.

[AnonymousGuy]

Have I scientifically measured it?  Noooope, but I've found that fans seem to prefer to have restriction on the outlet (push) vs. restriction on the inlet (pull).  It's probably splitting hairs though.