Radiators, airflow and positioning

Ninjahmahs

New member
Hey all,

Now im sure that some where this has been answered definitively (I have trawled many a google search and many many videos/forums with no conclusive answers), but essentially i am about to embark on building my new rig which will be the first time I have allowed water into a system i own as a method for cooling (didnt trust it or maybe myself with it a few years back).

essentially my current build is made up of the following components
https://uk.pcpartpicker.com/user/NinjahMeh/saved/#view=WV7j4D

What I am trying to get an understanding of is the optimal setup for my radiators position and which fan set up will make for the best performance as well.

I am currently waiting on a triple set of the EKWB f3-120 fans which i got after a fair bit of research showing these fans are of a agreeable performance level at a fair price (i was tempted into the new IPPC NF-F12's but money just told me it was not needed.... yet)

my gut tells me the optimal setup would be this:

Stock 200mm TT fan in the front as an intake

leaving the stock exhaust case fan as is

360 rad set up on the right roof radiator channel (cpu side) with radiator set up to
the rear end

using the 3x EK 120mm's in pull configuration exhausting from top through the radiator

this leaves me with the 3 fractal rad fans to then either add on to the radiator in push pull or to set up as possibly intakes along the bottom right panel section (bringing more cool air into the path of the airflow leading upto the exhausting rad and rear exhaust)

I figure this may be a sensible set up for now as the remainding heat dissapation from the gpu will be able to flow up out of the left hand radiator mount point and have as little warmed air exhausting through the rad and then its just a case of do i use the push pull possibility with the left over stock rad fans or use them as extra intakes to invoke a more positive case pressure (my house is not overly dust free so I am leaning toward a positive pressure setup to minimise dust in the computer chassis.


Sorry for the probably fairly answered question but I cannot for the life of me find a well justified explained logical guide out there that says where good radiator placement is with a good explanation as to why so I thought it would be best to ask for the opinions of some of the more enthusiastic of the OC3D community.


I feel my config makes sense and that the variant choices i have left myself with (either the extra rad pressure using push pull, or the positive internal pressure using more intakes) are the main area that could have any other overall impact on the performance of the rig and its airflow/temperature control as a whole.



Any ideas or advice is massively welcomed as my final components are due any day now and the minute they get here I am hoping to have a clear layout in my head as to how im going to build it up so I can get to it as soon as possible whilst doing so in the most efficient way I can so as not to leave myself with the "what if i had done it this way?" niggles


Ta

Ninjah
 
push is more efficient than pull imo. i personally use push pull because to mount the rad at the top i needed the fans for spacing for my screws. if i had short enough screws to mount without needing the spacing i would have gone just push. "the push config is still pushing the hot air out of the top of the case btw"

intake in to the case is something that i do add. i prefer a rear intake fan instead of an exhaust fan If i am water cooling. (just to supply more cool air to the top rad and this fan can be at near silent rpm 24/7)

I also like to intake from the bottom in all situations. especially if i have a gpu that is air cooled.
again these fans can be at low rpm. and do not need to pull that much air in to the system at all.

in that set up most of the fans can be set at a constant 7v or so. and the only fans that would change rpm would be the fans on the top mounted rad.

i do like to set a profile that is a bit more aggressive for a single rad setup as by the time the cpu is getting to higher temps the liquid will have retained a bit more heat and will be slightly less effective.
due to this i would usually have my fans on the rad increase in speed at about 5-10c earlier than i would with a hs/fan setup. this is only to keep the liquid working more efficiently. and with more rad space even those fans can be set to a constant 7v.

hope this all helps you decide what to do.
 
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