Optimal Case Fan Setup?

quang.doan

Prominent
Dec 8, 2017
16
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510
Hi guys,

I currently have a Corsair Air 240 case with a Micro ATX motherboard and was wondering if my current fan setup is optimal for sufficient airflow throughout the case. The case has a dual chamber design meaning that the power supply, HDD, SDD, and cables are placed in the back of the case thus leaving a lot of space in the front for airflow. At the time being, I have 2 (120mm) intake fans on the front and 2 (120mm) exhaust fans on the top (none on the back as it only fits 80mm fans and they're notorious for being loud). My concern is that the top intake fan (fan no. 1) will take in cool air but the moment the cool air goes inside the case, the top exhaust fan (fan no. 3) will immediately take it out preventing the cool air from properly circulating the case. Any suggestions on whether my theory is true?

Also, another concern I have is that the front intake fans are covered by a metal mesh (pretty standard with most cases nowadays to prevent/reduce dust intake). Although the mesh isn't super thick to the point that it completely blocks the airflow, it does show some sign of impedance. I tested it by placing my hand inside the case with the mesh and without the mesh and the airflow seemed much greater without the mesh attached. Should I be using an airflow optimised fan or should I be using a static pressure fan because I know they're great at going through tight spaces?

Drawing of the Fan Placement (Please Look)
https://imgur.com/a/BWu6e

Link to the case:
https://www.corsair.com/us/en/Categories/Products/Cases/Carbide-Series%E2%84%A2-Air-240-High-Airflow-MicroATX-and-Mini-ITX-PC-Case/p/CC-9011070-WW

My build
Case: Corsair Air 240
Motherboard: ASRock AB350M PRO4
CPU: AMD Ryzen 5 1400
GPU: Zotac GeForce GTX 1060 6GB AMP! Edition
RAM: HyperX Fury (2x 4GB) 2133 Mhz
PSU: Cooler Master MasterWatt Lite 500W
SSD: Sandisk 240GB
HDD: Seagate Barracuda 1TB

P.S. The 2 intake fans are the bequiet! Silent Wings 3 and the 2 exhaust fans are the Corsair AF120 Quiet Edition.

Sorry for the long post.
Kind Regards,
Quang
 
Solution
Have you thought about trying all the fans for intake with no exhaust? It could help temps, but the main reason I do it is because it creates a lot less dust collection.

Turb0Yoda

Expert
Ambassador
Yes. That's generally the reccomended fan config: intakes in the front and exhausts in the back and top.
If possible, you might want to move one of the top fans to the back, and that might help with temps, but it depends on what CPU cooler and how it's orientated.
 

quang.doan

Prominent
Dec 8, 2017
16
0
510


Thanks for the answer but the case only fits 80mm fans on the rear (I'm trying to avoid using 80mm fans) and the top are 120 mm fans so it won't fit.

 

quang.doan

Prominent
Dec 8, 2017
16
0
510


Interesting suggestion, I might just try that tonight.