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gt420 question

post #1 of 5
Thread Starter 
so i have six corsair af14 140mm fans and two gtx420 rads lying arnd from a previous build which i never got to use.
i was wondering if i can use them optimally with just push on one side? i want to use them to cool two gtx690 cards only in one loop.

i have a 900d gathering dust for a week on which i want to use them. I am trying to use what i got instead of buying anything new specially rads if its really not required and make the gtx work with these fans.
SilentMonster
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SilentMonster
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post #2 of 5
Sure, they'll be fine in push. My 900D build will have the lower 480 rad in push.
post #3 of 5
For dual 690's faster fans would be better. The GTX is a fairly dense rad and the AF140's run at about 1150RPM

A GTX360 will deal with about 150 Watts at those fan speeds and a 10C delta. I can't see the airflow focused 140 fans doing a whole lot better than that.
To deal with a 600 Watt TDP that theoretically could mean up to a 20C air/water delta
Kusanagi
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Kusanagi
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post #4 of 5
Thread Starter 
not sure if there are any high speed 140 mm fans out there with low noise which can do the job on these 420's.


hmm...might as have to go with 480 rads then with 120's fan.
SilentMonster
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SilentMonster
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post #5 of 5
The Bgears Blasters 140mm fans are capable, and if you go Push-Pull you can turn down the speed from 1800rpm to maybe 1300rpm and get similar performance to having full speed but push only fans.

Also, if you add the Phobya 20mm thick 140mm shrouds on the push side, with the 7mm thick shrouds/decouplers on the pull side, it causes much less turbulence noise. It also helps performance, and with a very high density rad like the GTX, you want every advantage you can get.
   
Z77 Bench-a-lot
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Z77 Bench-a-lot
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i7 3930K @ 4.92Ghz Asus Rampage 4 Extreme EVGA GTX670 FTW 2GB  EVGA GTX780Ti Classified K|ngp|n Edition @ 1483... 
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EVGA GTX780Ti Classified K|ngp|n Edition @ 1483... 16GB G.Skill Ripjaws-Z @ DDR3-2248 9-10-9-26 1T Samsung 830 256GB SSD WD10EZEX 1TB HDD 
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WD10EALX 1TB HDD Seagate Barracuda 7200.14 1TB WD3200AAKS 320GB HDD WD5000HHTZ 10krpm 500GB VelociRaptor 
Optical DriveCoolingCoolingCooling
LG/Hitachi Slim DVD-R/W Custom MB-Backside VRM-sinks (Copper) 3x NZXT RF-FX140LB 1-2krpm 98.3CFM Case Fans 2x Corsair SP120-PE Case Fans 
CoolingCoolingCoolingCooling
Heatkiller GTX680 "Hole Edition" Block + Backplate XSPC Single-Bay Res (Single 5.25 bay) EK Multioption Res X2 - Advanced 150 DD "Fill-Port Res" + Fill-Port Fitting (Red) 
CoolingCoolingCoolingCooling
2x MCP35X + Heatsinks/80x15mm Fan XSPC EX420 Alphacool NeXXos UT60 240 6x Bgears Blasters 140mm 1800rpm Fans 
CoolingCoolingCoolingOS
4x Koolance 120x25mm 2600rpm Fans Comp/Rotary Fittings (BP/XSPC/Monsoon) Primoflex Pro LRT - White (1/2x3/4) Windows 7 Professional 64bit  
MonitorMonitorMonitorMonitor
Dell P2210Hb 21.5" 1920x1080p Viewsonic VA2012WB 20.1" LCD 1680x1050 Dell U3014 Eizo 27" 1440p 10bit RGB-LED Backlit AH-IPS Panel 
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55" LG HDTV (their top 2014 model) Ducky Mechanical (Browns) NZXT HALE90 850W + 8 blown-up AX1200/i's NZXT Switch 810 (White) 
MouseMouse PadAudioAudio
R.A.T.3 + MX510 My Desk GRADO RS1i Headphones Grado PS1000 Headphones 
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Bitfenix Hydra Pro Fan Controller 5ch 30W/ch Bitfenix Alchemy Individually-Sleeved Extension... NZXT Individually-Sleeved Front Panel Wires (Bl... Phobya Sleeved 1x3pin-to-4x3pin Fan Splitter 
OtherOtherOther
Sleeved Wires w Paracord myself (no Heatshrink) Custom Front and Top Panels w HexxMesh *In Prog... Working on Custom Pedestal Prototype 
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