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different fans on each other

guyonwater
By guyonwater
in Cooling
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i have a very strange idea of putting 2 different fans on each other. 1 very silent but less airflow and a 3000rpm noctua fan for high airflow but obviously more noise.

 

the idea is to drive them with a fan controller based on the temp, and the noctua would only switch on if it's really a must.

 

i did a quick test, where i did not feel significant change in the airflow with the noctua stopped in front of the silent fan, but with the noctua at full 3000rpm, it was a bit limit but still much better than without it.

 

anyone used this setup before? is this a crazy idea?

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What are you trying achieve with this setup? Wouldn't two identical fans with specs somewhere in between get same results. Is this going to be with cooler or case? And if you are thinking of having 2 fans right next to each other, they will most likely cancel each others effect of fight each other rather than working as pair.

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I think he's going for a two stage silent/ballz to the wallz config.

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yes, i want to have the option to go for very silent for desktop and "performance" setting for gaming. this would be case fan blowing directly on the graphics card, therefore it strategically important position.

 

fans are aerocool dead silence and noctual industrial 3000rpms. blowing cold air in. noctual would be stopped unless it is necessary.

is there any risk of damaging the fan by pushing the blades when the fan is off?

 

graphics card is water cooled, but backplate gets very hot :( 

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