Originally Posted by doyll
My suggestion is all PWM cooler or radiator fans. Use 2x front & 1x bottom intake with 1x back & 1x ttop back vent open. Control them all with PWM signal as explained in sig link. Raise case 30-40mm with taller feet or a castor base (I prefer castor bases).
Originally Posted by Ookakiba
So I ordered a few fans and I was thinking, would two front intakes, side intake, and a rear exhaust be a good idea for airflow? Or would having as Doyll said: Bottom intake, front, and side intake with rear and top exhaust work? I know each case is different and I know I'll probably have to test each configuration to see how well it works. I'm just trying to figure out what's better in the long run for cooling.
2x front intake
1x bottom intake
1x rear exhaust
top back vent open.. no fan.
top front closed
side vent optional; test closed, intake & exhaust and see
I also remove unused PCI slot covers for better front to back airflow..
Originally Posted by NYMD
His plan is 5 fans and yours is 4 so not a completely fair comparison. Both would work, depends what you want to spend. Its also super easy to experiment in this case so if you get 4 or 5 fans you can move them around to see what works better for you. That will depend on whether you have the hard drive cages still in, whether your GPU exhausts into the case or out, etc.
Mine is 3x intake 140mm PWM fans controlled by CPU fan header PWM signal. CPU cooler is ducted out back. Bottom, front and back grills removed, bottom front filter grills. PWM control of case fans means when CPU fans speed up using more are case fans speed up and supply more air. PWM control can also be supplied by video card PWM fan header to fans supplying air to video card.
Bit-tech tested a Define R3 with 0x to 7x fans. Results are interesting. Too bad they didn't have temperature sensors positions at different locations in case.
http://www.bit-tech.net/hardware/2012/02/10/the-big-cooling-investigation/2Edited by doyll - 1/16/14 at 5:07am