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post #11 of 14
Air pressure:
Even: Equal intake and exhaust fan power, a decent setup.
Positive: More intake than exhaust, excess air sneaks out through gaps and pushed its' way into GPU fans ect, also limits dust inside the case.
Negative: More exhaust than intake. Takes work and planning to get a layout that really helps temps, also can be a dust trap if your case isn't well built.
If you run positive, you only need filters on the intake fans, as the positive pressure keeps dust out. Filters on exhaust fans is never needed.

Fans:
I love my Scythe Gentle Typhoons, lots of flow and decent static pressure that works well with rads and heatsinks, and quiet with it.
120 vs 140mm? Get 140s for every mounting you can, they spin slower and quieter, and move more air than a 120 at the same speed.
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post #12 of 14
Thread Starter 
Quote:
Originally Posted by Darksoul844 View Post
140m: http://www.noctua.at/main.php?show=p...3&lng=en&set=1
120m: http://www.noctua.at/main.php?show=p...5&lng=en&set=1 or http://www.noctua.at/main.php?show=p...s_id=12&lng=en

if you look at the specs those are around 100m3/h idk how to put that in CFM but i think thats over 150 or 200 CFM and it says there there only 20dba

Noctua fans are weak and overrated.



Quote:
Originally Posted by allikat View Post
Air pressure:
Even: Equal intake and exhaust fan power, a decent setup.
Positive: More intake than exhaust, excess air sneaks out through gaps and pushed its' way into GPU fans ect, also limits dust inside the case.
Negative: More exhaust than intake. Takes work and planning to get a layout that really helps temps, also can be a dust trap if your case isn't well built.
If you run positive, you only need filters on the intake fans, as the positive pressure keeps dust out. Filters on exhaust fans is never needed.

Fans:
I love my Scythe Gentle Typhoons, lots of flow and decent static pressure that works well with rads and heatsinks, and quiet with it.
120 vs 140mm? Get 140s for every mounting you can, they spin slower and quieter, and move more air than a 120 at the same speed.



I will probably get Gentle Typhoons or Noiseblocker.

Any good 140mm fans with 120mm fittings? only good one I know is TY-140, but its color kinda sucks.
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Vibrant Curiosity
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post #13 of 14
Quote:
Originally Posted by somebodysb2 View Post
Noctua fans are weak and overrated.








I will probably get Gentle Typhoons or Noiseblocker.

Any good 140mm fans with 120mm fittings? only good one I know is TY-140, but its color kinda sucks.
Scythe "KAZE MARU 2" 140mm Case Fan

120mm Screw-Hole,92.40 CFM

Sleeve Bearing fan
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my rig
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Hard DriveOptical DriveOSMonitor
Intel 160 GB gen2 SSD/intel 510 128 giga LG blueray windows 7 64 Samsung PX 2370 /t 240 hd 
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logitech Corsair ax 1200 /ax 850 LianLI A77F red /x 2000 Logitech 
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post #14 of 14
Questions:
120 vs 140? 140mm fans have better CFM/dBa ratios
25mm vs 38mm fans? 38mm fans have better static pressure
best fans for Archon? TY-140
best fans for NH-D14? TY-140
best fans for Silver Arrow? TY-140. Yeah, just get it. It's the best.
whats positive air? More air flowing into the case than out. With filters on intakes, the case remains relatively dust free.
whats negative air? More air exhausting than intaking. Dust is attracted to every microscopic opening.
positive vs negative? (I have filters in every opening) Positive, but only slightly. You want to stay as close to 50/50 as possible.
filter in exhaust needed? (Will dust keep out with the air blowing against it?) NO
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Short Stuff
(19 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 945 Asus M5A97 R2.0 Asus HD 6570 4x4GB G.SKILL Ripjaw 
Hard DriveHard DriveHard DriveOptical Drive
WD Velociraptor WD Caviar Black Samsung F3 Samsung SH-203B 
CoolingOSMonitorKeyboard
Noctua NH-U12P Windows 10 Home Samsung 32" LCD HDTV 720p Logitech K330 
PowerCaseMouseMouse Pad
Seasonic SS560-KM CM 690 II Logitech M215 Staples 
AudioOtherOther
Creative Inspire P5800 5.1 speakers Motorola SB6141 Modem Netgear WNDR3700V3 Router 
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