Karadjgne :
The only issue dude in the video had was with the motherboard, he used an E-ATX x299 mobo that has massive heatsinks right at the top of the mobo, so interfered with the 280mm radiator top mount. No worries front mount. Your ram doesn't make a difference no matter how tall it is, the ram slots themselves sit lower on the board than that x299 heatsink so clear the cooler with plenty of space.
There's enough room in that case to easily mount a 240/280/360mm radiator either top or front mount with a normal ATX mobo as the top heatsinks on the VRM's are considerably smaller than on the x299 which by necessity needs massive VRM's cooling ability to handle the 16 core 2066 cpus.
Switching to a 240mm top mount with the same board he had no fitment issues, so if you are that worried, opt for a 360mm rad instead which uses the same 120mm bolt pattern as dude's 240mm DeepCool.
As is, my nzxt x61 280mm fits just fine on top in my define R5, which has basically the same dimensions minus a few of the modular tweaks.
Thank you for a quick reply! That helps a lot.
I am also thinking of buying the H150i Pro because it's 120 wide instead of 140. But I actually like the 115i more. It's quieter, cheaper, carries more air, not super long, and performs almost identically to the H150i 360mm. I also worried if it will suck cool air from the front before it reaches the components.
I am more concerned about THICKNESS other than width. How low it gets and if it collides with tall RAM:
See this thread here:
https://linustechtips.com/main/topic/884948-define-r6-and-radiator-support/
A guy said his 280 rad almost scraps the LOW PROFILE ram he has. And that high profile ram won't work.
I am not sure what motherboard, cooler or installation setup he has - but you can check the link and see the photo he attached.
So what do you think?
Corsair Vengeance RGB PRO is 51 mm tall and the RGB non-pro version is 44mm.
Here are current parts of a future -in development - build of mine:
(note that the motherboard is currently a placeholder and it's just a rough list).
https://pcpartpicker.com/list/ssdbdX
I don't really want to front mount the RAD because Ilive in a very hot country and I want the front airflow to be undeterred as possible - and that colder fresh air will throw air from the x2 front 140mm fans onto the GPU. I think a front RAD clutters the case and chokes it.
Never had AIO before though.
Also if you like to visit and lend me a hand with my build plans, I'll appreciate it:
http://www.tomshardware.com/answers/id-3802931/2019-ultimate-gaming-build-planning-decisions-questions.html#21404255