Input or output airflow to motherboard

[asteroidas]

Hi, so i have a few connections in the motherboard for case fans. So the question would be which ones i should connect to motherboard better? With input airflow or with output airflow? Because one or two from four i will have to connect directly to PSU, because there arent enough connections for all fans

 

[kanewolf]

Maybe inflow air. The only reason I give for that is you might be able to ramp up the inflow air if the case gets hot because of the GPU. The GPU fan will be running faster, so giving more positive pressure to ensure there is cool air to feed the GPU is probably a good thing. You want a slight positive pressure if possible, so that dust isn't sucked in through ever crack in the case.

 

[adamjosiah]

If I'm understanding this correctly, you want the intake fans on the psu because they will always have to run at full blast, unless you have a fan controller of sorts on them. Or go half and half.