Has anyone ever stacked 2 lowprofile fans on a HS?

[Fireman]

My TT Volcano 6cu is just too loud. I was thinking of stacking 2 low profile 60mm fans on it and using my baybus to control the second fan. That way one fan would be on all the time and the other could be switched on for gaming.
Anyone tried this?

 

[boyRacer]

Fan stacking is not as beneficial as you think... i believe it would take four fans to double whatever it is you want to increase... LOL... now if i could only find that page about it... i think it was at overclockers.com... hmmm... i dont even think it did anything to the temps...

 

[Shaorinor]

I dunno if I'm thinking correctly, but all you are doing is adding a longer tunnel of air...but you're still pushing the same amount. I don't see what it would do.

 

[WarCon]

I have a curious thought though since you mentioned wind tunnels. What about a cyclone adapter tube for your heatsink fan. You know like you see in those car commercial. Fins on it aid in starting the air into a spiral before it hits the fan. It might makes the air in something like a Alpha PAL 8045 (pinned) adapter or a spiral finned adapter like shown in the Asus Mobo book have more pressure into the center right over the core. Also may not do anything ................😀

 

[Antz]

That cylone thing is garbage...and it's been proven to be trash time and time again....

If it wont work on a car...it wont work on computer 😀

 

[fell8]

I have stacked fans. While I'm sure it does lose effectiveness over keeping them separate (maybe alot), it does work.

 

[Fireman]

I am thinking 2 things.
1. If just the bottom fan is running then the fan on top would make some interference in the air flow.

2. When both fans are running the top fan force feeds the bottom fan alowing it to push more air.

I'll do some sperimentin.

 

[FlowerMan]

It's been observed and accepted for fact in the HardForums that stacking fans does NOTHING except waste money, time, effort, and space. 😉

 

[WarCon]

If you get a counter-rotating fan then stacking would be beneficial. Much like on airplane engines. But going the same direction, I am pretty sure it wouldn't do much. You could use the second fan on one of the sides and gain some benefit from it.

 

[Demon-Xanth]

The second fan would be beneficial because the second fan would lower the amount of pressurization that the first would have to do. However the difference would not be great.

One thing that I had on my old case was a big ass fast blowhole (120mm high speed panaflow,105CFM) directly over the CPU. This actually caused the CPU fan to spin at 900RPM faster (4900 vs. 5800) because of the massive amount of airflow coming down on it. Depending on the ambient temperature (and the amount of dust that collected), and the CPU usage I would drop 5-15F when I switched on the blowholes (2x120mm, 2x60mm in the drive bays, about 200CFM total)