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Case Fan... SIze matters?

Dhrshanv2
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Go to solution Solved by Dhrshanv2,

Ok Thnx

Corsair Carbide Spec 01 supports both 140mm and 120mm in the front does it matter what size i get? does 140mm have better airflow over 120mm

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It does, but not that much. The advantage of having a 140 mm fan is that you can make it run slower while moving as much air as a 120 at full speed. that means a quieter fan.

R5 3600x | RTX 3070 | 16Gb 3200mhz | Gigabyte B550 gaming x | 500gb 660p SSD + 1tb wd blue HDD |

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Generally speaking the larger the fan the lower the necessary rpm which directly equates to lower noise.

Case: Corsair 4000D Airflow; Motherboard: MSI ZZ490 Gaming Edge; CPU: i7 10700K @ 5.1GHz; Cooler: Noctua NHD15S Chromax; RAM: Corsair LPX DDR4 32GB 3200MHz; Graphics Card: Asus RTX 3080 TUF; Power: EVGA SuperNova 750G2; Storage: 2 x Seagate Barracuda 1TB; Crucial M500 240GB & MX100 512GB; Keyboard: Logitech G710+; Mouse: Logitech G502; Headphones / Amp: HiFiMan Sundara Mayflower Objective 2; Monitor: Asus VG27AQ

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2x 140mm's are usually as effective 3x 120mm's. 

Go with 140mm's where possible.

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A larger fan will be able to move more air and will perform better. You can have a 140mm fan run at a lower speed than a 120mm one and still get the same amount of airflow with the fan running quieter. Or, you can have the 140mm fan run at the same speed or higher as the 120mm one for more cooling performance.

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