Push/Pull and High/Low Pressure?

[Tithonius]

The build as it stands now: http://pcpartpicker.com/p/Cr2dwP

 

Okay, what i need to decide is how i am going to mount my fans and radiators for the 2 water coolers that I am going to be running for my build. I will be running a Corsair H100i GTX 70.7 CFM liquid CPU cooler and a NZXT X31 Lliquid GPU ​cooler with a NZXT Krake​n G10 liqu​id cooling​ bracket. 

 

I will be putting this all in NZXT H440 ATX mid tower case. So what i need to decide is where to put my radiators, and also how i should do my push/pull to make sure that the pressures are okay for the system, as well as keeping the dust lower if possible.

 

I believe that it may be easiest for me to put the H100i radiator on the top of the system and the X31 in the rear of the system near the top. But how should I orient the fans? what is the best way to approach this?

[airdeano]

well push/pull on the H100i GTX will not be possible in the H440 if mounting in

the roof. not sure if the hose is long enough to reach the front bulkhead.

 

if running the gtx in the roof, the x31 in the rear i/o, there might be an

interference issue between the two at the rear of the case. so mounting the gtx

to the forward location will look odd. why not a simple 120 for the GPU kit?

 

here is a H105 in the roof (single fan set) and 2x R9 290x with 2x H55:

 

 

source: http://forums.anandtech.com/showthread.php?t=2392438

 

but, you'll have GPU cooling issues (as this user did). the front cover is just

restrictive and won't pass enough air to comfortably cool the systems. look

to the phanteks enthoo pro for a better flow experience for the price.

[Ja Krispie]

Honestly push/pull is pointless. Linus has even done a video on it, along with many others and the conclusion is that there is no real gain from a push pull config.

[Tithonius]

@airdeano

 

I dont mean that im gonna do a push/pull configuration in a single rad, what i mean is i dont know what to do for each radiator seperate. i think what i want to to is to stick with my original idea of the bigger rad in the top and the smaller one in the back.

 

altho like you said it may not fit, and i cant really mount anything in the front because of the airflow restriction... 

 

do you think it would be possible to do a 120 size for both the gpu and cpu and then mount both of them in the top of the system?

 

Or would it be a better choice to mount the 120 size gpu cooler in the top and run the cpu cooler to the rear of the system?

[Tithonius]

The other thing that hits me about this system is that he has another graphics card ni his system that restricts the little bit of airflow that he has in his case, i will be running just one card so that will improve the situation in my case. 

 

Also, the fact that the rear fan and radiator can be slid down into a lower position because of the case mounting holes and for the same reason that the top radiator can be slid all the way over toward the front of the case, i think i can make everything fit. 

 

So the conclusion that i have come to  is that if i use the 3 front fans as intake and then use the top CPU radiator and the rear GPU radiator both as exhaust, i should be able to cool my system properly.....i think

 

If i do it in this configuration then i have 3 intake and 3 exhaust and that should give me a fairly even pressure inside the case. the pressure may be a bit low on the inside, it depends on how much airflow i can get out of the 3 front fans. The bad thing is that the front fans will probobly be working a bit more, and that may make some noticeable noise down the road.

[airdeano]

then this is your plan:

 

[Tithonius]

@airdeano

 

yes, both of the radiators will be exhaust and all of the intake will be comming from the 3 120mm fans in the front

 

The second question that i have is about the radiators and the fans. Is it better to put the fans on the inside or outside of the radiators? should the fans pull through the raditors? or should they push through the radiators?

[Tithonius]

It could also be possible to put a 3rd fan in the top of the case, but i dont know how that would fit with the two radiators in there, im not banking on that working at all. its just more of an idea