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Fan efficiency

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Efficiency as in some connection between air flow, pressure and speed at different PWM. fan-performance-database

Using the database Lian li 140 is off the charts. Lol

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That's the fan for me :)
 
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Really the p12 max gets platinum rating at its extremely low price... wow. Obviously its noise isn't great, but considering the max rpm that makes sense. Btw what is meant by efficiency exactly? Like airflow vs electricity drawn?
 
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Noctua is cheap? Had I used Noctua instead of Antec it would have cost more than 3 times as much, which adds up for the 6 fans I got.


For me noise is a big issue, but I also want good air flow, so I went with multiple fans.

Really the p12 max gets platinum rating at its extremely low price... wow. Obviously its noise isn't great, but considering the max rpm that makes sense. Btw what is meant by efficiency exactly? Like airflow vs electricity drawn?

I believe it is how much electrical energy ends up in the air, so in principle my fans could achieve the same objective with much less power.
 
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Noctua is cheap?


For me noise is a big issue, but I also want good air flow, so I went with multiple fans.



I believe it is how much electrical energy ends up in the air, so in principle my fans could achieve the same objective with much less power.
Oh so a small number is good in this case? Like only 10% is lost or something?
 
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my beautiful fan

View attachment 389630


I can set RPM from 300 to 3000, so good fan, the best. And cheap

Got two of these on my PC, but they definitely aren't for everyone. At $30 a pop, these industrial grade fans are extremely expensive even for Noctua standards. They're also very noisy. Noctua manufactures an iPPC-2000 model with IP67 ingress protection rating, I have one of those too. It's quieter than the iPPC-3000, but not by much. To fully populate a large case that takes ~12 fans + replacing your heatsink's fans with these, you're looking at around $400 on them alone.
 
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Could it be the CFM at a given RPM.
for example Lian Li Uni 140 vs Arctic P14
at 70% PWM 1300 RPM
pressure 0,7
airflow 38 vs 23 CFM
current 0.1 vs 0.07A
 
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