Question Questions about fans

SumTingW0ng

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Aug 6, 2017
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Hello
Are high static pressure and airflow cfm good for cooling?
I have my eyes on these two fans
Corsair hd 140 rgb and Corsair LL140 RGB
From specs, I think HD 140 is better than LL 140 RGB because HD 140 have high static pressure and cfm. Am I right about this?

Hd 140 rgb specs

Fan Size

140mm x 25mm
Bearing Type

Hydraulic
Flow Type

Static Pressure
LED Color

RGB
Operating Voltage

7V - 13.2V
PWM Control

YES
CORSAIR iCUE Compatibility

NO
Fan Model

HD Series

Weight

0.5
Package Quantity

2
Speed

600 - 1350 +/- 10%
Sound Level

28.6 dBA
Power Draw

0.30 A
Static Pressure

1.85 mm-H2O
Adaptive Sync

RGB
Fan Airflow

74 CFM

LL140 RGB specs
Fan Size

140mm x 25mm
Bearing Type

Hydraulic
Flow Type

Static Pressure
LED Color

RGB
Operating Voltage

7V - 13.2V
PWM Control

YES
CORSAIR iCUE Compatibility

YES
Fan Model

LL Series

Weight

0.5
Package Quantity

2
Speed

600 - 1300 RPM
Sound Level

25 dBA
Power Draw

0.3 A
Static Pressure

1.52 mm-H2O
Adaptive Sync

RGB
Fan Airflow

51.5 CFM
 
Last edited:
Hello
Are high static pressure and airflow cfm good for cooling?
I have my eyes on these two fans
Corsair hd 140 rgb and Corsair LL140 RGB
From specs, I think HD 140 is better than LL 140 RGB because HD 140 have high static pressure and cfm. Am I right about this?
High airflow is always important but static pressure deals with obstruction such as radiators. High static pressure fans are best when using radiators but are just fine for regular use.
 
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SumTingW0ng

Reputable
Aug 6, 2017
433
7
4,865
High airflow is always important but static pressure deals with obstruction such as radiators. High static pressure fans are best when using radiators but are just fine for regular use.
Thanks. Which one is better in cooling?
LL 140 RGB: 1.52 mm h20 static pressure, 51.5 cfm
Hd 140 rgb: 1.85mm h20 static pressure, 74cfm
So hd 140 is good in cooling rad or cpu heatsink and case fans from what I learn from you?
 

SumTingW0ng

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Aug 6, 2017
433
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HD is better in every situation.

Thanks

What is your case and current parts setup?
What are you trying to accomplish?
I like 140mm fans, they move a lot of air at reasonable rpm and noise.
You will do ok with either, but it might be more important where you locate them.

Corsair 750d airflow edition case. 3700x cooled by h115i pro rgb top. 2x 140mm fans intake front, 2x aio fans top exhaust, and 1x 140mm exhaust. I have Sapphire Pulse RX 590 @ stock max temp 80 to 82c.
I want to achieve good cooling and rgb. I can go with Corsair because I want one software to control rgb and peripherals than having like 3 peripherals control software.