Thermalright IFX-14

Well, the way that the heatsink is made actually allows you to run 2 fans in parallel (most others only allow for 2 fans in series in a push-pull setup), and 3 in series. You are right in saying that its part the fans and part heatsink... but isnt that one & the same here? You cant do those fan configs on say... a TRUE. And why would that make the results count any less? Its like saying that its not so much the car that allows you to drive faster than the other guy but that its the gas you use... well... gee... thats sort of a loaded statement.
 
Actually, I found a review of this cooler that they did a very comprehensive look at 1, 2, and 3 fan in a lot of different configurations. Come to find out, in a closed case, 3 fans actually hurt performance compared to 2 and using 1 low speed 800rpm slip stream worked best when put on the very front. When put in the middle temps actually got worse.

http://ixbtlabs.com/articles3/cpu/premium5-coolers-shootout-may2k9-part1-p6.html
 
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Yep, because 3 fans means you are running in series, so more pressure, but only the flow/volume of one fan. Being that the fins on the cooler are spaced out more, there is less back-pressure to start with, so having fans in series is rather pointless. But, putting 2 fans on, both facing inwards for more volume in 'parallel' would be the best.
 
undertheradar said:
Yep, because 3 fans means you are running in series, so more pressure, but only the flow/volume of one fan. Being that the fins on the cooler are spaced out more, there is less back-pressure to start with, so having fans in series is rather pointless. But, putting 2 fans on, both facing inwards for more volume in 'parallel' would be the best.
Click to expand...
I've tried every possible combination on my ifx-14, and found that two 140mm fans at 5v, one in the middle and one "behind" the rear side of the ifx (both blowing same direction) , yields the best cooling and is almost inaudible
 
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