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good 140mm rad fans - Page 11

post #101 of 103
Quote:
Originally Posted by nleksan View Post

If you haven't purchased yet, have a look at PPC's 120mm "misc" fans section, specifically the Koolance 120x25mm 2600rpm Dual-Ball Bearing fans. I have 4 in push-pull on a UT60 240 and they are by far the best fans for the money I've ever owned. At full speed they push a whopping 107cfm and 5.4mmH2O, but they can be controlled extremely well with a fan controller. I have all 4 on one channel of my Hydra Pro (30W/ch) and with the speed all the way down they are as quiet as the case fans while pushing more air than anything else at minimum speed (which is about 1350rpm). They undervolt incredibly well, and the dual-ball bearing motor means that regardless of orientation they won't have any funny noises, not to mention the greatly enhanced lifetime over the sleeve bearings of the Yate Loons. Best part is they only cost $8-9/ea.
There is also a 120x38mm 2600rpm version which is identical except for the 117cfm/6.4mmH2O, but if thickness is an issue the 120x25 will work wonders.

If you have room, regardless of the fan you choose, I would suggest getting some of the Phobya 120x120x7 or 140x140x7 (whichever size is applicable) "Fan Shrouds/Decouplers", as they will both reduce the "wind noise" of the fans as well as decouple them, and I would guesstimate about a ~3-5dB difference with them vs without, as well as a noticeably better airflow pattern through the radiator (using the smoke test; with the shrouds, the smoke comes out evenly, without there is a dead spot in the middle and the smoke comes out like a cylinder with very little in the middle and a huge amount in the sides).

Thanks for the advice... They really seem to be ultimate radiator fans smile.gif
There are unfortunately a few reasons why I could not use those fans:
1. With that specs they only make 120mm ones, when 140mm seem to perform a lot worse...
2. I have got no room for any adapters frown.gif
3. I cannot exceed 10W per channel (max 2 of them per channel) with my fan controller, as I did not have any 5.25 bays free so had to go with NZXT Sentry LXE frown.gif

I will however keep an eye on them when I will be changing my setup...
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EK FC7850 with FC7850 backplate 3x Corsair AF140 Quiet Edition Case Fans EK FC7850 Mayhems Pastel Blueberry Coolant 
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Viggen Blue
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CPUMotherboardGraphicsGraphics
Intel Core i5 2500K@4.8GHz Gigabyte Z77X-D3H ATI Radeon HD Sapphire 7850 GPU@1100MHz RAM@140... ATI Radeon HD Sapphire 7850 GPU@1100MHz RAM@140... 
RAMHard DriveHard DriveHard Drive
16GB 2133MHz Patriot Viper Black Mamba 3 WD Caviar Blue 320GB 2x OCZ Agility 3 64GB in RAID 0 Corsair Force 3 120GB 
Hard DriveOptical DriveCoolingCooling
Maxtor OneTouch 500GB Pioneer DVR-219L Laing DDC-1+T Plus Ultra Pump (18W) with EK CSQ... Alphacool Cape Corp Coolplex Pro 25 LT Reservoir 
CoolingCoolingCoolingCooling
EK FC7850 with FC7850 backplate 3x Corsair AF140 Quiet Edition Case Fans EK FC7850 Mayhems Pastel Blueberry Coolant 
CoolingCoolingCoolingCooling
XSPC EX 280 with 4x Yate Loons D14SH-12 Alphacool NexXxos XT45 Full Copper with 4x (pus... Alphacool NexXxoS ST30 Full Copper 120mm with 2... EK Supremacy CPU Acetal Nickel Waterblock 
CoolingOSMonitorMonitor
Lamptron FC2 Fan Controller Windows 7 64bit Hanns-G HS233 Toshiba Regza 32" 
KeyboardPowerCaseMouse
CM Storm Quickfire Rapid (Black Cherry MX Switc... OCZ ZX Series 850W NZXT Switch 810 Black CM Storm Sentinel Advance II 
Mouse PadAudioOther
CM Storm Speed RX Small Sound Blaster X-Fi Titanium Fatal1ty Phobya Coolant and Ambient temperature monitors 
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post #102 of 103
FWIW in my 140mm fan testing days any fans with a normal 7blade design (short of the industrial San Ace types) had major trouble with blade harmonics at speeds greater than about 1500RPM. The higher number of blade type fans typically did the best for me although none of the 140mm fans I've tested were all that great compared to 120mm options. I actually found a GT15 with adapter to outperform all of the 140mm fans without adapter regarding CFM/Noise ratios.

I see swiftech has a 140mm option now. I wasn't impressed with the Titan Kurkuis in 120mm format, but perhaps 140 may be different.
Anyhow, hope they develop more 140 options, they are still a bit limited.
    
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post #103 of 103
Really hope to see some nice new 140mm fans - W got some really amazing 140mm RADS on the markets, just need some more fans to fit on them ...
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