230mm mounted externally over radiator

[Namdhda]

I have a HAF 932. Recently i got tt's water 3.0 ultimate, installation went fine etc, but the top 230 had to come out (duh). I mounted it with cotter pins on top of the tower, so technically it is acting as pull for the rad. Does this hinder the rad's cooling? Maybe some negative effect of the low rpms compared to 120s, or maybe static pressure is lower or something?

Also, unrelated note, i took the included 5.25-3.5 adapter and put it in backwards in one of my bays, because i noticed the two holes it had lined up with a 140mm fan's mounting points. So now the back of my 5.25" bays is walled by a 140. The bays are empty anyway so there is good airflow, but i am proud of myself for that mod 😀 so i had to share.

 

[Lutfij]

When dealing with radiators always have them set up as push whereby you are pushing air through the radiator. If you can get cooler ambient air into the fins you're bound to see lower/favorable temps. If your hands are tied and can only afford a pull on the rads then it'll only produce a minor temp increment. That being said, you should have AIO's mounted up top to always have the fans in push to exhaust air out the top. Hot air is lighter and tends to rise thus the rear and top are meant as exhaust points while cooler air is denser and thus is fed from the front and bottom of a chassis.

It'd be worth alot to the community if you could include a snap of how you have your AIO mounted and setup as well as temperature comparison of before mod and after mod.

 

[Namdhda]

Can't post a picture right now, but the three 120s that came with the AIO are mounted in push underneath the radiator, which is mounted to the top of the chassis. The 230 is then mounted externally, providing some small amount of pull on the radiator.