Intake or Exhaust with two rads?

Ollie3345 · 5 Mar 2017 at 09:25

Hi everyone.

I have an Enthoo Luxe case and have a 360 rad as an exhaust on top and 3x 140 fans as intakes, two at the front, one at the rear. I've been donated a 240 rad by a friend and I want to add it to my loop. Has anyone else put a 360 and 240 rad in a Luxe? If so what is the best set up? Im thinking having a rad as an intake in the front won't improve my temps much as my top rad will be exhausting warmer air. Any advice would be appreciated.

trawetSluaP · 5 Mar 2017 at 14:20

I'd still put the new rad in the front as intake as it'll be adding to the natural flow of air.

Everyone has different likes or opinions to though so you could make them both intake but then you'd only have a single case fan exhausting the hot air.

Alex h · 5 Mar 2017 at 16:34

I have a 240 rad at front intake and a 420 rad as exhaust at the top also got a 120 at bottom as intake keeps pc nice and quiet as well as cool

Glanza · 5 Mar 2017 at 16:52

I always go by front / bottom intake and rear / top exhaust even with radiators fitted.

Legend · 5 Mar 2017 at 19:45

Rads work best with cool air coming over them. There seems to be this persistent myth that they need to exhaust hot air, which is incorrect. Also, if you have more exhaust than intake it will create negative pressure which will result in more dust build up inside the case vs positive pressure (more intake than exhaust).

Ollie3345 · 5 Mar 2017 at 23:56

So what about putting rads top and bottom as intakes then the front and rear fans as exhausts? That would create positive pressure as there would be more intakes than exhausts and both rads would have cooler air run through them.

Legend · 6 Mar 2017 at 01:25

Ollie3345 said:
So what about putting rads top and bottom as intakes then the front and rear fans as exhausts? That would create positive pressure as there would be more intakes than exhausts and both rads would have cooler air run through them.

Good having both rads as intake, but the problem with having the case fans set-up that way is you're then not getting effective airflow through the case... you have both rear and front pulling against each other. Personally I'd have the front as intake also, and just have the single 140mm at the rear as exhaust, you don't need more than that.

Razor Time · 6 Mar 2017 at 08:48

I would set both rads up as intake.

Ollie3345 · 8 Mar 2017 at 20:56

Thanks everyone. I put both rads as intakes and the rear as exhaust. It seems to have improved temps by 1-2 degrees on average on IBT. Every little helps