Proper ventilation?

[space_0660]

I'm fairly new to building and am wondering if I have a proper fan configuration here. Open to any and all suggestions. I've got two Corsair 140mm intake in the front, an AG620 Deep Cool CPU heatsink, a Phantek 120mm in the rear as intake, and a Corsair MagLev 140mm in the top for exhaust. Please see attached pic. Thanks!

[Poinkachu]

9 minutes ago, space_0660 said:

I'm fairly new to building and am wondering if I have a proper fan configuration here. Open to any and all suggestions. I've got two Corsair 140mm intake in the front, an AG620 Deep Cool CPU heatsink, a Phantek 120mm in the rear as intake, and a Corsair MagLev 140mm in the top for exhaust. Please see attached pic. Thanks!

I would try making the rear fan as exhaust and see if temp is much better in heavy load.

Because the rear & the cooler fan is throwing air at each other.

[space_0660]

What about the top exhaust?

[Poinkachu]

3 minutes ago, space_0660 said:

What about the top exhaust?

Top exhaust should be fine, if you can move it a bit to the rear , try moving it a bit more to the rear.

 

I'm not a pro airflow scientist or something, but my logic kinda screaming that the area between rear fan & cpu cooler fan becomes a turbulence zone, which hopefully the top exhaust can pull most of the hot air out from it before it gets re-used by other fans.

[space_0660]

This makes sense. I am only concerned here with keeping positive pressure, but I suppose I can knock my rpm down on both exhaust fans. Thanks

[Poinkachu]

10 minutes ago, space_0660 said:

This makes sense. I am only concerned here with keeping positive pressure, but I suppose I can knock my rpm down on both exhaust fans. Thanks

Yea, worry about the actual flow & actual temp first, pressure type can still be achieved by simply tuning the RPMs / adding a small fan somewhere.

 

Plus, negative pressure doesn't add that much dust inside the case. Even in my very dusty country

[DoctorNick]

3 hours ago, space_0660 said:

I'm fairly new to building and am wondering if I have a proper fan configuration here. Open to any and all suggestions. I've got two Corsair 140mm intake in the front, an AG620 Deep Cool CPU heatsink, a Phantek 120mm in the rear as intake, and a Corsair MagLev 140mm in the top for exhaust. Please see attached pic. Thanks!

 

I would simply remove the rear fan and leave the top fan. You could also remove the top and rear fan entirely. With this small of a gpu it won't matter much anyway.

[TatamiMatt]

To add, even with both rear fans as exhaust (id recommend this) you only have 1 140mm exhaust fan and 1 120mm, your intakes are both 140mm so at equal RPMs itll still be slightly positively pressured, tweaking fan curves and RPMS will only help this. Lastly, are any of these fans static pressure or all airflow? if your have airflow at rear and SP at front then your in an even better place for pos. pressure.

 

[venomtail]

Yea back has conflict. Both fighting against each others airflow. As mentioned above, you could remove back intake, place it as extra top exhaust. Two intake at front, two exhausts up top and cooler on its own taking care of the rear exhaust.

[space_0660]

4 hours ago, TatamiMatt said:

To add, even with both rear fans as exhaust (id recommend this) you only have 1 140mm exhaust fan and 1 120mm, your intakes are both 140mm so at equal RPMs itll still be slightly positively pressured, tweaking fan curves and RPMS will only help this. Lastly, are any of these fans static pressure or all airflow? if your have airflow at rear and SP at front then your in an even better place for pos. pressure.

 

Thanks so much for this. Especially about the fan curves. I should’ve mentioned I’ve already upgraded my cooler because my 7700x cpu was getting hot(running 80-spiking at just over 90C). My GPU wasn’t ever an issue (6650xt). Thanks!

[Alan G]

Everything you wanted to know about air cooling is HERE.  There are good sections on fan specification, set up and real life monitoring of temperatures.  As others have noted, the rear fan has to be turned into an exhaust fan.  Right now you are pushing air at the cooler from two directions which is not optimal.