little help with fan orientation

garethjwilliams · 19 May 2015 at 08:20

hi guys a little information please i have 480 mm rad in top of enthoo primo at the moment set up as push/pull exhaust, now i also have a 360mm monsta rad in bottom which hasnt got no fans on at the moment, they are being delivered tomorrow, corsair SP120 quiet edition, the ones with changeable colour rings, obviously they match my colour scheme, same fans i have on top with the colour rings showing inside the case, can i set bottom rad up as exhaust as well ??? i have 2 intakes 2 front they are 2 140mm corsair fans, i can put another intake down by bottom rad, and another exhaust above in the usual place, is there going to be a problem doing it this way as there are more exhaust than intakes, any help is appreciated, Gareth

Bickaxe · 19 May 2015 at 10:11

No problem if it fits but most people would have the bottom of the case as intake.
Having an intake and exhaust next to each other (if I understand correctly) won't give the best results due to air flow.
What's does your loop have in it? Guessing CPU and 2 GPUs with that amount of rads.

BRIGGBOY81 · 19 May 2015 at 21:21

i have the same case gareth with 2 360 g-changer rads in the top and bottom with both of their fans as exhaust. then the 2 140 front fans as intake and the top rear 140 fan as an intake

colinmcr · 19 May 2015 at 22:38

I have 2 480 rads in my Primo build and both exhaust, I got told this is wrong elsewhere but I don't follow the herd and it suited me for aesthetic reasons due to wanting to show the coloured rings on the fans. It makes no difference imo, however I would make sure you give yourself a decent air gap at the bottom, mine sits on a castor base for that bit extra clearance for the warm air.

deFiniLoGy · 19 May 2015 at 23:10

If you live in a dust free room, set all your fans as exhaust.

Otherwise, rule of thumb is to have more intakes then exhaust to generate positive air pressure inside the case, so dust will not get sucked in through the gaps of the case.

Dont worry about hot air rises, you can have top intake and bottom exhaust, no difference in real world scienarios

BRIGGBOY81 · 20 May 2015 at 20:37

colinmcr said:
I have 2 480 rads in my Primo build and both exhaust, I got told this is wrong elsewhere but I don't follow the herd and it suited me for aesthetic reasons due to wanting to show the coloured rings on the fans. It makes no difference imo, however I would make sure you give yourself a decent air gap at the bottom, mine sits on a castor base for that bit extra clearance for the warm air.

couldnt agree more. Also colinmcr makes a good point about sitting the case on something for the hot air at the bottom, ive got mine on some 3" chocks of wood.

garethjwilliams · 20 May 2015 at 23:45

Thanks guys appreciate everything you say, cpu and one gpu at the moment I will have 2 gpu's within the next year, good idea with castor base I will have to look in to getting one, or making one