[SOLVED] PC case airflow question

[kuba2002.11]

My question is, will a 40mm fan above my CPU cooler make the airflow of the cooler worse ?
I always used the stock cooler for the i7 8700k and my computer case has a single 40mm fan mounted on the top of the case.
I'm buying the Noctua NH D15S and I'm scared the extra fan on top is going to ruin the airflow.
Should I keep it or dismount it ?

 

[SteveRX4]

It shouldn't cause a problem. Except maybe it'd be noisy. If you have at least 2 other 120+mm fans in your case you can uninstall it if you want.

 

[thx1138v2]

A change in the CPU cooler air flow should show up in the temperature. Try it both ways to determine if it helps or hinders the cooling.

 

[MJS WARLORD]

i have the noctua and 5 other fans in my coolermaster half x tower , you will not have any problems with airflow , the fan is silent as well , if you pc did not have a few lights you would not know it was switched on it is noiseless.

NOTE.... did you check the measurements of the fan unit to make sure it will fit in your case ...... it is huge !

 

[digitalgriffin]

My question is, will a 40mm fan above my CPU cooler make the airflow of the cooler worse ?
I always used the stock cooler for the i7 8700k and my computer case has a single 40mm fan mounted on the top of the case.
I'm buying the Noctua NH D15S and I'm scared the extra fan on top is going to ruin the airflow.
Should I keep it or dismount it ?

The most natural and best airflow solution is natural convection. Hot air has a tendency to rise from bottom to top. You can direct it from front to rear, but bottom to top is the most natural pattern.

An exhaust fan on the top should not affect the performance of your stock intel CPU in a negative way. It only encourages that natural convection process.

 

[geofelt]

What is the make/model of your case?
What fans do you have and how are they installed.
Any cooler needs an adequate supply of fresh air to let the cooler do it's job.
As far as cooling goes, the Noctua NH-D15s is as good as it gets.