540 watercooled build

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Hi guys

about to begin my new build in a corsair 540 and was wondering how you would suggest airflow to go with a 240 rad, 360 rad and a single rear fan.

cooling a 2600k and 780

all fans will be sp120 quiet editions :)

Thanks
 
The complete opposite to what Avenged7Fold said.

Rads intaking cool air, fan on the rear as exhaust. This will provide you the best temps and the positive pressure will ensure that no dust will settle in your system.

This is the set up for our Infinity Tesseract system and those things are cool.
 
You will have warmer air from the radiators going in the case that way and case temp goes up.

Try both out and see who's correct.

People think your blowing hot air into radiators by having the fans blowing out but you don't, since the case temperature does not heat up much at all with the exhaust fans being the radiator fans, as all the heat created by the cores are being blown out of the case rather than in. My 540 watercooling build case temp is never one or two degrees above ambient room temperature. It is better to have one or two degree warmer air blowing into your radiators than ambient air and a considerably warmer case temperature (especially because your radiators are internal radiators).
 
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Positive pressure is not directly cooling related. It is about reducing dust build up.

It is wrongly named, since there is no actual pressure increase, as the case is not sealed and has vents. If you have more fans blowing out than in, it needs to take more air in through the vents to accommodate the fans, rather than out. Because they go through vents rather than fans which are usually next to dust filters, you get more dust going into the case and over extended periods of time, it can build up and increase heat.

Its term comes from actual positive pressure, which is an increase in pressure compared to the outside environment. Our cases are nowhere near tight enough to create a positive pressure of any consequence.

Cleaning the case from dust every few months and having exhausts on radiators reduces the temperature more than a bit of dust build up.

What do you think positive pressure does?
:confused:
 
What has worked best for me (quietness and benching/OC stability) is two 120 intakes on the front rad, 1 stock rear exhaust, and two 120 exhausting through the rad in the top of the case.
 
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