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pwm controlled fans on a radiator?

post #1 of 4
Thread Starter 
hey guys,

im getting my sig rig put together here in the next few days... the goal for this build is ABSOLUTE silence. My Dad and older Brother said i can build a computer that is quieter than my Dads Dell computer.... challenge accepted.

so, i just bought a Thermalright True Extreme 120 heatsink and its going to have a NF-F12 on it, if that doesnt give me the performance im looking for, im going to go with water cooling for the processor, but its got to stay quiet.

so low FPI radiator and low RPM fans, i figured im already going to have a few of Noctuas new NF-F12 fans for my air cooler, so i was thinking about using them on the radiator if i went that route. But what if i kept the fans mounted on the radiator plugged into the PWM controller on the mother board. id use a dual radiator in the top of my 600T as an exhaust.

what are your thoughts on that?
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Super quiet
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post #2 of 4
Thread Starter 
did i stump ya'll or what?
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Super quiet
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post #3 of 4
Quote:
Originally Posted by Sean W. View Post

did i stump ya'll or what?
That works great. Give it a try... =P

Edit: If silence is needed get a D5 pump.
Edited by Rognin - 3/18/12 at 10:14pm
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Synthetic Anatomy
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NAT-inator
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CPUMotherboardGraphicsGraphics
Intel Core i7 2700K Z68X-UD7-B3 NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
GraphicsRAMRAMRAM
NVIDIA GeForce GTX 580 Corsair  Corsair  Corsair  
RAMHard DriveCoolingPower
Corsair  2x Mushkin 240Gb SSD Raid 0  A lot. ST1500 
CaseAudio
FT02 Xonar ST 
CPUMotherboardGraphicsRAM
i5-2500K P8P67 WS Revolution Sparkle Calibre GTX 560 G.Skill 
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Corsair Force SSD WD Caviar Black BD combo Liquid 
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post #4 of 4
Nothing wrong with using PWM controlled fans on the radiator.

It isn't always as worthwhile as with aircooling. Water holds heat more, as a result variance in the water temperature takes more time. So ramping up the fans with temperature doesn't show immediate results and varying the speed with CPU usage can cause the fans to wildly enough to be annoying.

I'd just find an RPM you're happy with and leave it at that. Depends on what temperatures you're looking for but with a 240mm and those Noctuas at around 75% you'll be laughing .
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