Is it OK to have an exhaust fan directly above the intake fan for the CPU heatsink?

Question

I've been assembling a custom PC, and was wondering if it's OK to have an exhaust fan directly above the intake fan for my heatsink.

This is how my system is laid out

Solution

It will be okay to put but it is of no use to connect the exhaust fan on an intake fan, both will be fighting for the same air(i.e. neither hot nor cool) as both are in the same direction. instead of that put both the intake fan at one place.

That is remove your 1 intake fan and connect it above the CPU intake fan so that the external intake fan bring the cool and fresh air inside the cabinet and your CPU intake fan will take that air directly not any other hot air.

And your other fans (exhaust fans) will do there job of removing hot air from the cabinet.

Direction of the Air matters a lot see this design architecture of this cabinet then you will get a clear picture.

visit this for more infor Edit your connection are okay but my advice is to Change the marked exhaust fan with intake fan that will be good for giving cool air to your CPU.

Comments

[Ramhound]

Why wouldn't it be alright?

[fixer1234]

What is in your picture looks fine.

[Thalys]

Inlined your image. I resized it for you, and I suspect some arrows showing airflow direction would be useful here.

[Ramhound]

@CullenJ - You don't want hot air in your case. So if you are extracting air, what air your heatsink does have access too, will be cooler than the air your extracting.

[smali]

No,If your fan is facing toward the rear of the PC and have angle of 90° then it will be perfectly okay. I thought that you are connecting it exactly opposite to your CPU fan.

[smali]

Okay I have edited my anwer

[Tetsujin]

I wouldn't swap the top fan to intake, I'd stick with in at bottom & front, out at top & rear. The current layout from the OP's pic is fine, so long as there is sufficient intake that we can't see. The disputed fan is actually going to be pulling cooler air from the bottom of the case, allowing the heat sink fans to use that cool air.

[brokethebuildagain]

@ali786, Your advice in your edit is exactly what I ended up doing; so far, I'm very happy with the results I'm seeing in SpeedFan now. :) Thanks!