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Stacking fans?

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#1
I just got my new Hyper N520 cooler from the local micro center and I was wondering if I could double stack 92mm fans. The fans have 10 blades and are placed to cover more of the heat sink fins with a small fan size. To increase the CFM and general static pressure could I stack another 92mm fan on top or under the fan?

See the pic :rockout: Thanks
 

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#2
Stacking fans doesnt really do much imo as the amount of air one fan can push thru isnt going to magically multiply just cause u added another fan directly under/over it.. then theirs the whole vacuum effect close proximity fans tend to cause.. Your better off just buying faster/higher quality fans.
 
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#3
Try to use those fans to push air from places it usually wouldn't get air from.

Stacking fans does between little and nothing.
 
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#4
When you stack fans they start fighting each other creating a hulluva lot of noise from my experience. Not a good idea, best just to get one higher powered fan.
 
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#5
Stacking fans could even slow air flow. Use one somewhere else
 

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#6
i have done it before and got nothing but more noise. If you are going to enter your rig in a SPL contest then go ahead and do it :laugh:
 

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#7
stacking fan = more air pressure (only useful for a very dense fin arrangement, however you cooler is designed for normal fan, so you wont benefit)
also = more noise (the whooshy kind)

as said, place fans that direct air or take away at the fans already mounted. For example on the side panel.
 

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#8
I believe it is possible to get better air flow by doubling the fans but only if you get the fan speeds correct. I think one has to be a little slower than the other. Delta used to do one some time ago
 
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#9
If you want more air being pushed through, buy some Delta fans with 5000RPM. You'll get deaf before you can say "omfg, what a fan", but you'll get the best effect.
 
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#10
Yo Dawg, I heard you like fans, so we put fans on top of your fans!
 
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#11
What about using one fan to push air and two fans to pull air?
 

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#12
buzzzzzzz. bad idea. if you want more speed then use a better fan. simple. i have conducted numerous experiments on this and wasted countless hours. but its all worthless. fans dont like to be on each other :p
 
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#13
Unless the fan below it will be running counter to the rotation of the one on top of it, Stacking fans wont make sense.
 
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#14
Better to just get a higher air flow fan.
Which may mean more noise than the one you have but less noise and more functionality than stacking fans.
 
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#15
I was planning on just getting a crazy high CFM delta fan for my push. This cooler is set up great but the fans just are slow a crap ha.
 
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#16
It's amazing what a high flow decent case fan can do.

I had a Titan 120mm for my exhaust and my system was doing fine then I it burned out and I replaced it with a Thermal Take 120mm fan with a lower rpm.

Noticed my CPU was hotter than before but thought it maybe a motherboard issue, then i installed a AC Twin Tubo on my GPU which made the case even hotter causing my CPU temps to get rather high.

Ended up buying a new CPU and the temps were still the same.
Then I was given a Lian Li PC-G7 which has a higher flow exhaust and GPU exhaust fan.

The difference was significant.

Despite adding a bigger GPU cooler this also meant the case temps went up and the CPU cooler could not do it's job efficiently regardless of being a monster.
 
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#17
It's amazing what a high flow decent case fan can do.

I had a Titan 120mm for my exhaust and my system was doing fine then I it burned out and I replaced it with a Thermal Take 120mm fan with a lower rpm.

Noticed my CPU was hotter than before but thought it maybe a motherboard issue, then i installed a AC Twin Tubo on my GPU which made the case even hotter causing my CPU temps to get rather high.

Ended up buying a new CPU and the temps were still the same.
Then I was given a Lian Li PC-G7 which has a higher flow exhaust and GPU exhaust fan.

The difference was significant.

Despite adding a bigger GPU cooler this also meant the case temps went up and the CPU cooler could not do it's job efficiently regardless of being a monster.
yea, good airflow is paramount. The way i used to test to see if i was getting the best airflow possible was to take off the side panel and direct a house fan inside at the components. If the temps didn't change with the side panel on or off, i knew i had decent airflow.