Can I use different fans for a push-pull setup?

[Ildiesalot]

So I'm looking to build a custom watercooling loop inside a desk. I already have four 120mm noctua fans, as well as two 140mm ones, but I'd like to put RGB fans on my radiators (sorry, I just don't love puke brown). Can I utilize my existing Noctua fans on the bottom of the radiators for push, with RGB fans on the top for pull?

 

Thanks!

[Dschijn]

You can do that, but you might waste cooling potential because you would have to balance the fans in a good way to make them perform at it's best since they habe different specs.

[Christophe Corazza]

1 hour ago, Ildiesalot said:

Can I utilize my existing Noctua fans on the bottom of the radiators for pull, with RGB fans on the top for push?

 

Do you mean sandwiching your radiator between your 4 fans?

You should be just fine with that.

 

However, why would you put the only 4 fans that you have in this configuration?

Take for example 2 fans that blow cool air in your desk PC, and mount your radiator with the remaining 2 fans exhausting hot air at the end/back of the desk.

[Ildiesalot]

On 5/28/2018 at 3:23 PM, Dschijn said:

You can do that, but you might waste cooling potential because you would have to balance the fans in a good way to make them perform at it's best since they habe different specs.

Sorry for the late reply, it's been busy lately.

 

Is there a way to calculate the cfm of the fans at certain RPMs, so that I can match them at both sides?

 

Otherwise I'd probably just match the rpms on each side (I'm hoping for very low rpms, hence why I'm trying to run push-pull setup) and hope for the best.

[Dschijn]

That is exactly the problem I mentioned, because you will not be able to calculate the sweet spot for matching cfm. You will most certainly (in some way) waste some of the performance. I would say best call would be to match the rpm. Or ditch the stress and buy matching fans