Scythe case fans - Which ones you recommend?

[Jack500]

Hello,

I have a Corsair 700D case and I want to install 3 exhaust case fans on top of it. I've decided on Scythe Gentle Typhoon series. I want them to be very quiet.

Notes
1. I will not be water cooling it.
2. System to be used primarily for professional work, some gaming.
3. Hardware - Intel DX58SO2 mobo, Intel i7-970 CPU, Asus 6970 video card (one card for now, two cards if I need it), 3 monitors, high-end sound card, 2 hard drives)

QUESTIONS
1. Which Scythe fan would you recommend from Gentle Typhoon series (500, 800, 1,150, 1,450, or 1,850 RPM)?
Remembering - I will have 3 of these on top of my case and I want them to be very quiet and at the same time help reduce heat
2. Is it worth it to have variable fan speed given my setup?
3. Now, the 3 fans on top would be better used for exhaust, right? Should I even consider using them as intake? Why or why not?

As always thanks,

Jack500

 

[davcon]

Cheaper and FDB bearings.
Scythe S-FLEX SFF21F
http://www.newegg.com/Product/Product.aspx?Item=N82E16835185006
Scythe S-FLEX SFF21E
http://www.newegg.com/Product/Product.aspx?Item=N82E16835185005
http://www.frozencpu.com/products/2505/fan-205/Scythe_S-FLEX_SFF21E_120_x_120_x_25_mm_Fan_w_S-FDB_Bearing.html?tl=c15s60b14
E's would be perfect.And yes for exhaust.
Thermalright fans are also very quiet.
I have two of these and they're the quietest fans i've ever used.
Look nice and have full black sleeving.
Thermalright X-Silent 120mm x 25mm Stealth Silent Fan - 1000RPM
http://www.frozencpu.com/products/9652/fan-609/Thermalright_X-Silent_120mm_x_25mm_Stealth_Silent_Fan_-_1000RPM.html?tl=c15s60b34

 

[Jack500]

Davcon,

Thank you for your comments and quick response. I greatly appreciate that!

Does FDB bearings make it more quieter or does it make it last longer? I was under the impression the Gentle Typhoon series were the quitest fans Scythe makes.

I have not checked out Thermalright. Good call! Now, what do you mean by "full black sleeving"? I've read somewhere that "sleeve" fans are only good if placed in vertical position. The fans I need will be placed in horizontal position. Can you comment?

 

[davcon]

Davcon,

Thank you for your comments and quick response. I greatly appreciate that!

Does FDB bearings make it more quieter or does it make it last longer? I was under the impression the Gentle Typhoon series were the quitest fans Scythe makes.

I have not checked out Thermalright. Good call! Now, what do you mean by "full black sleeving"? I've read somewhere that "sleeve" fans are only good if placed in vertical position. The fans I need will be placed in horizontal position. Can you comment?

FDB costs more and are considered higher quality for quietness and longevity.
By sleeving i'm referring to the coloured cables for the fan,lots of fans have no sleeving just bare exposed wires.red.black,yellow,etc
The fan i refered to has them covered in a black fabric sleeve = looks way better especially if your case happens to be windowed.
http://www.silentpcreview.com/article63-page2.html

 

[Jack500]

Best answer selected by Jack500.

 

[Jack500]

Gotcha. Thanks again and enjoy your Saturday!

 

[oc_mania]

I dont understand why the S-flex are so popular when you have the Slipstream :
http://www.newegg.com/Product/Product.aspx?Item=N82E16835185005&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&AID=10446076&PID=3899435&SID=skim1402X558040Xf3bf72d0ec785bfd92a4ba1a971ef625 vs http://www.newegg.com/Product/Product.aspx?Item=N82E16835185058&cm_re=scythe_slipstream_120mm-_-35-185-058-_-Product . For another 4 dBA you get +20 CFM [same RPM] and for a lower price.

 

[Jack500]

The Slipstreams have a "sleeve" ball bearing. I understand these types of fans should not be used in horizontal positions (i.e. air blowing up or down) as they will wear out extremely fast. They should be used primarily in vertical positions (i.e. air blowing left or right).

The fans I need will be situated horizontally, therefore I am disregarding all "sleeve"-type fans.