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140.3 vs 120.4? - Page 2

post #11 of 20
http://www.caselabs-store.com/magnum-sth10/

sth10. you'll never want another case.
post #12 of 20
Quote:
Originally Posted by yakaway View Post

http://www.caselabs-store.com/magnum-sth10/
sth10. you'll never want another case.

Because you'll still be paying on this one years later.... smile.gif
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post #13 of 20
but is it worth it
post #14 of 20
Quote:
Originally Posted by givmedew View Post

You also can't test the fans yourself given the equipment you have and the way you are going to set up the test. Any data would be inaccurate and so close to the margin of error that you would have just wasted your time and maybe even decided on the wrong thing.
As far as the fans go. Is 3x140 or 4x120 better? I just took a look at a bunch of fans on newegg and it seems that the 120mm fans push more CFM than the 140mm by a lot. The upper area of 140mm was 80s and the upper area of 120mm was 140-180CFM. So if that is true I don't think there is much comparison once the fans are bolted on.
Besides that though which one is gonna fit in your case and look nice?

These 140-180cfm 120mm fans you mention are not even in the same league as the 140mm fans you are comparing them to, as the fans pushing that much air are Deltas, Panaflo, and the like; industrial fans for server applications in which the noise level isof no cconcern due to the fact that no one is near them.

If you were to look at fans based on their overall qualities, you would see that two fans of the same type, say Cougar or Bitfenix Spectre Pros, differing only in diameter, will generally favor the 140mm fan for airflow volume (by around 20-30 percent) while the 120x25mm fans have a slight advantage in static pressure in most but not all examples.

I would say that the vast majority of people would rather have a 140mm fan pushing 80cfm than a 120mm 80cfm fan simply because the former will be significantly quieter. 1800rpm for a Bgears Blasters 140mm to move 103cfm vs 2600-3000rpm for equivalent airflow from a 120mm fan = large noise discrepanc .

I have nothing against 120mm fans, far from it, but I do think that the 140mm fans are the future due to the advantages they offer.
     
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post #15 of 20
I did tons of research before deciding on what I've gone with (UT60 420 + UT60 280). I never did see enough restriction results on 120.4 to make a good analysis, but I think that all things being equal that you'd have more flow restriction on a 120.4 vs 140.3 since more tubes in parallel is lower drag than less tubes in a longer length. I'm still not done yet due to the number of mods I've had to do to my case to make it fit nicely, so I can tell you soon how well it worked out.
post #16 of 20
Quote:
Originally Posted by nleksan View Post

These 140-180cfm 120mm fans you mention are not even in the same league as the 140mm fans you are comparing them to, as the fans pushing that much air are Deltas, Panaflo, and the like; industrial fans for server applications in which the noise level isof no cconcern due to the fact that no one is near them.
If you were to look at fans based on their overall qualities, you would see that two fans of the same type, say Cougar or Bitfenix Spectre Pros, differing only in diameter, will generally favor the 140mm fan for airflow volume (by around 20-30 percent) while the 120x25mm fans have a slight advantage in static pressure in most but not all examples.
I would say that the vast majority of people would rather have a 140mm fan pushing 80cfm than a 120mm 80cfm fan simply because the former will be significantly quieter. 1800rpm for a Bgears Blasters 140mm to move 103cfm vs 2600-3000rpm for equivalent airflow from a 120mm fan = large noise discrepanc .
I have nothing against 120mm fans, far from it, but I do think that the 140mm fans are the future due to the advantages they offer.

You're already right with me as we've been talking about this for a while. I've done a lot of testing over the past couple of days on fan noise so I can setup all the PID controller for my fans and getting it such that I know that the inline temp-sensors are all calibrated as well as I can to each other. I've currently go it such that the GTs will go to 100% before the 140mm YL SHs get to 30%. If delta-temp1 gets high enough (exit CPU - exit radiator) then it adds in the extra fans on top. But my method only works if you have the room for the 140mm-120mm adapters + GTs.

Until someone makes an uber 140mm with tons of static pressure for very little noise similar to the GTs, I don't think we are going to see the shift.
post #17 of 20
Thread Starter 
So Davron in the end you decided the GT with shroud/adapter was a better option noise/static pressure wise than any given 140mm fan? That and cfm is largely irrelevant as far as radiator fans go, with numerous 120mm fans having 5-15 cfm more flow than GT15's but unable to create static pressure through restriction.
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post #18 of 20
Quote:
Originally Posted by teamrushpntball View Post

So Davron in the end you decided the GT with shroud/adapter was a better option noise/static pressure wise than any given 140mm fan? That and cfm is largely irrelevant as far as radiator fans go, with numerous 120mm fans having 5-15 cfm more flow than GT15's but unable to create static pressure through restriction.

Just for reference. I'd love to see Martin or someone else do some good testing on the newer 140's like the cougars. But this does reference the Aerocool sharks which people seem to like.

http://martinsliquidlab.org/2010/12/10/r7-140mm-fan-testing-on-a-hwlabs-sr1-radiator/

In my new build I'm going to try some 140's in push and 120's in pull I think.

Anyone use the stock 140's that come with the Switch 810? If they are not worth using I have some Aerocool sharks around somewhere... or I could order some cougars when I get the fans for my wife's case.
Edited by pgdeaner - 10/9/12 at 1:38pm
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Black Knight
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post #19 of 20
Quote:
Originally Posted by pgdeaner View Post

Just for reference. I'd love to see Martin or someone else do some good testing on the newer 140's like the cougars. But this does reference the Aerocool sharks which people seem to like.
http://martinsliquidlab.org/2010/12/10/r7-140mm-fan-testing-on-a-hwlabs-sr1-radiator/
In my new build I'm going to try some 140's in push and 120's in pull I think.
Anyone use the stock 140's that come with the Switch 810? If they are not worth using I have some Aerocool sharks around somewhere... or I could order some cougars when I get the fans for my wife's case.
I've used the stock switch fans on a radiator before. They aren't the best, but temps weren't bad.
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post #20 of 20
Quote:
Originally Posted by superericla View Post

I've used the stock switch fans on a radiator before. They aren't the best, but temps weren't bad.

The stock fans will just be directing air at the radiator. There will be GT 15's on spacers doing pull duty on the other side. Thanks for the input. thumb.gif
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