Hey everyone, I'm mounting a 280mm radiator on the front of my case and want to use the fans as intake. Is it ok to put two fans in front of the radiator and two on the back? Or is this absolutely pointless? I will be using Corsair ML140 fans on the radiator as well as two AF140s on the top of the case as exhaust and 1 AF120L on the back as exhaust. Thanks!
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Fan Placement on Radiator ?
- Thread starter dirim9
- Start date
Solution
- Feb 22, 2015
- 4,102
- 92
- 39,040
Cooling performance difference between them will not be substantial (maybe ~1*C to ~3*C). 2 fans versus 2 back-to-back fans at same rpm will produce same airflow (cfm). However the advantage of the back-to-back (or push/pull setup) is you can lower the fans' speeds/rpm but still create the same amount of airflow at GREATER static pressure at LOWER noise levels compared to 2 fans on one side only running on a full rpm (noisier). Of course, the main disadvantage of having 2 fans on both sides will be dust-build up and cleaning/maintenance.
- Feb 22, 2015
- 4,102
- 92
- 39,040
You're very welcome!
The advantages of the push/pull outweighs its disadvantages BUT based on several variable factors and is basically just a matter of preference given a certain condition:
For example, aesthetics. Some people want the "cleaner" look of the actual radiator to be seen - so they choose the fans on one side setup; some want those dazzling LED fans on the exposed side but need a better but not-so-good-looking fans at the concealed side of the rad - so they choose the push/pull setup.
Space clearance inside the case is another variable (motherboard or ram clearances, hard drive cages, etc.) would make you choose one or the other. There is also a factor of the actual radiator size and/or thickness that you will purchase.
Noise is another concern. Some people do not mind noisier fans - so a one side setup is alright; some people prefer lower noise levels - so they choose push/pull with lower fan speeds.
Tight budget leans toward the one-side setup than buying twice the number of fans. But if a different less-expensive fan model would be chosen for the push/pull setup, then costs can break-even.
Lastly, the cleaning and maintenance hassle also comes into play.
All factors and situations being equal, push/pull gives better cooling performance than just push or pull.
http://martinsliquidlab.petrastech.com/Radiator-Fan-Orientation-And-Shroud-Testing-Review.html
The advantages of the push/pull outweighs its disadvantages BUT based on several variable factors and is basically just a matter of preference given a certain condition:
For example, aesthetics. Some people want the "cleaner" look of the actual radiator to be seen - so they choose the fans on one side setup; some want those dazzling LED fans on the exposed side but need a better but not-so-good-looking fans at the concealed side of the rad - so they choose the push/pull setup.
Space clearance inside the case is another variable (motherboard or ram clearances, hard drive cages, etc.) would make you choose one or the other. There is also a factor of the actual radiator size and/or thickness that you will purchase.
Noise is another concern. Some people do not mind noisier fans - so a one side setup is alright; some people prefer lower noise levels - so they choose push/pull with lower fan speeds.
Tight budget leans toward the one-side setup than buying twice the number of fans. But if a different less-expensive fan model would be chosen for the push/pull setup, then costs can break-even.
Lastly, the cleaning and maintenance hassle also comes into play.
All factors and situations being equal, push/pull gives better cooling performance than just push or pull.
http://martinsliquidlab.petrastech.com/Radiator-Fan-Orientation-And-Shroud-Testing-Review.html
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