Enthoo Primo Radiator Airflow

BluD · 12 May 2016 at 22:00

Hello, just after a little advice from anyone whos filled one of these cases with rads. Im just in the process of adding another 240mm rad to the front right position and im wondering if anyone found which direction to put the fans for the best airflow.

At the moment i have the front 240 and bottom 360 drawing air in and the top 360 exhausting along with the rear 140 fan. Im thinking if i put the new 240 on the right also drawing air in might cause hot air to build up, i know positive pressure is good but im thinking of having one of the front 240s exhausting instead.

Normally i would just test both and see which is best, but once i get it piped up i will have to remove all the pipes and pump to get back to the fans, so i thought it would be a good idea to see if anyone has tried this (or something similar) already and could save me a lot of hassle.

Cheers.

D1craig · 12 May 2016 at 22:57

would all the intakes force more air out of the exhausts? meaning the top radiator performs better aswell?

BluD · 12 May 2016 at 23:09

The air would get out for sure, these cases have vents everywhere, im just not sure how quickly it will get out, i dunno if it will linger around for a bit too long or if it will keep moving. Im just thinking 3 rads all pumping their heat into that bottom graphics card, maybe it will build there i dunno, i wanna just test it and find out, i just cringe at the thought of having to take all the plumbing out and one of hte rads just to switch the fans around.

D1craig · 13 May 2016 at 03:46

Worst thing about watercooling for me is the effort it takes when changing something or in my case fixing something. I have a sata cable that mustn't clip into the whole probably a cheap one and it has come out so that ssd is now useless until I get inside which involves removing almost everything especially since I've done it inside an mitx case.

Maybe having the bottom rad that is below the gpu exhaust would work but only if the air flow through the front rads is good enough to give it some air to actually flow. But primo is huge so I'm thinking all in except the normal exhausts-top and rear.

Rustyone · 13 May 2016 at 10:56

You'd probably be better asking one of the F1 teams, on the other hand they probably use less Rads

BluD · 13 May 2016 at 11:49

Rustyone said:
You'd probably be better asking one of the F1 teams, on the other hand they probably use less Rads

Hehe, yeah they shouldnt put all these rad mounts in here, its just encouraging people to buy more rads. I just need to swap the top rad to a 480 or stick a 140 in the back to fill all the spots

I think ive sorted it now anyway, ive decided to go back to push only on the front 2 rads, then it means i dont have to get to the fans inside to swap them if i decide to change the direction on one. I initially was using push pull on the rads but since im using all high pressure fans and low fpi 60mm rads i think im good taking a set of fans off them rads. The new rad im putting in the front is only a 30mm one so ill be interested to see how much heat it actually kicks out, never used a think rad before.

Rustyone · 13 May 2016 at 13:18

I've tried push / pull a few times, but there is not much gain, well apart from extra fan noise, best I ever got was 2 degrees, not worth the bother.

seth1969 · 13 May 2016 at 13:22

I got two xspc rx 480's in my Primo, all intakes push/pull and 1 exhaust at the rear.
Very happy with the set up and cooling.

BluD · 13 May 2016 at 14:17

Yeah a 480 in the top would be nice, i wouldnt want one in the bottom though as it means ya cant use the 2 front 240s.

Its gonna be a few days till i can test it anyway now, as i was filling the loop water poured out of the new rad all over the mobo, mem, graphics cards and power cables lol.

Stripping it all down now so i can find out why its leaking, im hoping its just a dodgey o-ring.

Drangueos · 14 May 2016 at 13:59

I was using 5 rads.

Gpu loop:
240 front as intake
360 bottom as exhaust (I know, but helps keeping dust out, might change to intake while I'm rebuiting and cleaning my loop)
120 back/bottom as exhaust

Cpu loop:
120 back/top as exhaust
360 top as exhaust (push/pull)

IMHO: front always intake, top and back always exhaust.... bottom depends of the dust situation

BluD · 14 May 2016 at 17:43

Yeah, i decided to go for intake on the front, and exhaust on the side one, but now i can change the fans around im not to fussed ill just mss around with it once its running.

I just finished filling it up and getting the air out then my pump made a noise like sumone has just dropped a screw into it, now its not working. I assume its just gonna need replacing but i guess ill start emptying it all out again. Im just glad the pump failed while i was leak testing and not actually running the system. Got 10 years out of that pump so i guess im due a new one.