being airtight might not help.. these fans are designed to move air at a certain speed.. they can stall in essence..
i can see where u are coming from.. but u are only aware of parts of the equation..
airflow speed past the fan is very important.. sealing your leaks will slow the airflow down and cause it to stall just like an airplane wing..
its all about the pitch on the fan blades.. complicated stuff when its all weighed in together..
trog
ps.. dont let me discourage u.. bin where u are in the past myself.. its all good fun..
Yes that is true about the fin design , actually something that reminds you of a turbine is better than the old outdated fan design I plan to use which infact has a bigger "dead spot" in the mid. A friend of mine, his father has explained the entire thing more or less in detail (he worked for Saab Aerosystems) how the entire fan/turbine thing works like..
The count of number of fins - 60x60 vs. 80x80 is rather high. The original (stock) fan has more fins than the Tt, and are in a complete different design. Also the way the stock fan pushes the air is completely different. They are even in another angle if you look close enough. I think that the most stupid idéa I have come up with was "hey, I'll try and put one more fan, that pushes air thru the fins (having it installed at the side of the heatsink). So there I had one fan on top, and one fan at the side. It actually got warmer
. Reason (I guess), was that the fan on the side of the HS didn't give the fan on top a chance to cool all the way down.
I actually have a complete different fan I was planing to use, the only problem is that the engine is broken , it won't turn. I tested it once on the cpu, and managed to get it down to around 20C idle and around 35/37 on load. That one was also made by Tt (and was supplied with my PSU / Thermaltake Butterfly), and the fan design was not any ordinary but it was cylindric so it did not have the "dead spot" in the middle a normal fan would have.
Because even with a fan rotating @ 4000rpm , doesn't really mean that it IS better. All I want to do is to test and see the results. Back in school we also did heatsinks (milled on CNC machines) for use in stereo amplifiers, so even just the different designs of heatsinks make up a big difference. I.e. : My HS/fan vs something that would use copper/heatpipes would show that the one using heatpipes is better. But I think that something that cools it directly (water cooled or Vapochilled) would be even better. Because there I have a constant flow of something "removing" the heat all the time...
http://www.overclockercafe.com/Reviews/other_misc/Tt_Butterfly_480w/1003.html - Thermaltake butterfly.
http://accelenation.com/?ac.id.213.1 , another fan I had (it was even better than the above one). But sold that system..