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120mm intake/ exhaust fans: query

post #1 of 23
Thread Starter 
Hi all,

I've examined the sticky in this sub-forum but it hasn't answered my quite possibly noobish queries about fans.

I've got a Fractal Design R3 case and will be purchasing an MSI GTX580 Lightning Xtreme over the next few weeks. Currently I have 1 front 120mm intake fan (with removable, washable filter) and 1 rear 120mm exhaust fan.

I'm looking to add:

1 front 120mm intake fan (if possible with a removable, washable filter as i'm a sucker for symmetry).
2 top 120/ 140 (which is better?)mm exhaust fans
1 side 120/ 140mm exhaust fan.

I have absolutely no idea what to get to be honest. I don't want to spend much, am in a hurry to purcahse the fans and would like them as quiet as possible.

Can anyone offer any advice?
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post #2 of 23
140mm for the top will be good, and 140mm side will be better also.
they will push more air then the 120's
as for what you should get, its really what you want.

if u want silent and effectiveness i would recommand scythe products, or coolermaster sickles they are both really good.

but if u dont mind sound, get some mascool they push around 3000+rpm and push alotalot of air out,
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post #3 of 23
If you're looking for quiet on a budget, I'd recommend low-speed Yate Loons from Jab-Tech. 3.60 a fan? Fan-gusta. But since they're sleeve-bearing fans I wouldn't recommend placing then horizontally, that'll affect their performance and lifespan.

Enermax T.B Silence fans (both 120mm and 140mm) are pretty well priced, quiet as can be, can be mounted horizontally or vertically, and have a nice bearing.

I wouldn't recommend using the side fan as an exhaust though, people typically benefit from the fresh air it brings into the graphics card/motherboard area.

You might do well to use the block for the rearmost top position and use the frontmost as an intake. Which combined with your front and side intakes could help you get a nice wind-tunnel effect going on. The only way to find out though is to test.

Ehume's big thread on Air cooling cases is extremely informative and the links in his signature to his Megahalems testing and NH-D14 testing have a lot of good information regarding fans and relative sound levels. I'd heartily recommend it for reading.

http://www.overclock.net/air-cooling...g-warning.html
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post #4 of 23
Quote:
Originally Posted by Siegfried262 View Post
I wouldn't recommend using the side fan as an exhaust though, people typically benefit from the fresh air it brings into the graphics card/motherboard area.


http://www.overclock.net/air-cooling...g-warning.html

What he said,
side fans should usually be to bring in freash air,

you want positive airflow, meaning, bringing in more cool air then gettting rid of hot air,

if u have 1 exhaust back n top.
you will be fine, make the front n sides intake as they will force hot air out and bring cold air in it will create positive airflow which is what you want.
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post #5 of 23
Thread Starter 
Thanks for the advice guys. I've got the case manual sitting infront of me with a nice paragraph called 'optimal air flow cooling system' so its really just a case of determining which fan type was most effective and a good brand

I'm looking at some coolermaster fans on Aria.co.uk just now but how do I know if they are intake or exhaust fans?
Edited by Boygor - 8/5/11 at 2:51pm
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post #6 of 23
Quote:
Originally Posted by Boygor View Post
I'm looking at some coolermaster fans on Aria.co.uk just now but how do I know if they are intake or exhaust fans?
You can use fans as either intake or exhaust, you flip them one way or the other depending what you want.

Edit: That site sells Scythe Kama Flows and Gentle Typhoons, both are excellent fans. I recommend you take a look at those as well.
Edited by HWI - 8/5/11 at 2:54pm
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post #7 of 23
Thread Starter 
Quote:
Originally Posted by HWI View Post
You can use fans as either intake or exhaust, you flip them one way or the other depending what you want.
Ha ha! I never realised it was that simple I'm off to buy some fans!

*edit*

Ahhh, back again. All the Scythe fans have RPM associated... can anyone explain the benefits in a few quick sentences so I can click the add to cart button and get this fan purchase done and dusted?
Edited by Boygor - 8/5/11 at 3:09pm
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post #8 of 23
Quote:
Originally Posted by Boygor View Post
Thanks for the advice guys. I've got the case manual sitting infornt of me with a nice paragraph called 'optimal air flow cooling system' so its really just a case of determining which fan type was most effective and a good brand

I'm looking at some coolermaster fans on Aria.co.uk just now but how do I know if they are intake or exhaust fans?
Most fans are equally suitable, intake or exhaust is your call.

What is not equal is the bearing type, sleeve or rifle bearings are possibly less suited for mounting top or bottom. The CM Sickleflows are sleeve and from my experience can exhibit rattling when top or bottom mounted, otherwise they are great fans.

Scythe Gentle Typhoon 1450RPM is an excellent case fan and would make substantial improvement in flow over the Fractals (which are very quiet but also very weak). Scythe S-FLEX, Zalman ZM-F3-FDB and others with "FDB" type bearings would make good choices as well.

My personal favourites are the Noiseblocker Multiframe series although they are sometimes tricky to get hold off.
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post #9 of 23
Thread Starter 
Quote:
Originally Posted by noSleep View Post
Most fans are equally suitable, intake or exhaust is your call.

What is not equal is the bearing type, sleeve or rifle bearings are possibly less suited for mounting top or bottom. The CM Sickleflows are sleeve and from my experience can exhibit rattling when top or bottom mounted, otherwise they are great fans.

Scythe Gentle Typhoon 1450RPM is an excellent case fan and would make substantial improvement in flow over the Fractals (which are very quiet but also very weak). Scythe S-FLEX, Zalman ZM-F3-FDB and others with "FDB" type bearings would make good choices as well.

My personal favourites are the Noiseblocker Multiframe series although they are sometimes tricky to get hold off.
OK, Scythe Gentle Typhoon sounds great - these can be mounted horizontal and vertical with no issues? Looks like i'll need 5 of the things
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post #10 of 23
For sure, they're double ball bearing fans and can be mounted horizontally or vertically with no issues.
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