Originally Posted by koeden
I just recently got the Enthoo Evolv ATX TG and a Kraken x61 cooler, however I ran into issues fitting the x61 on the top of the case since it was colliding with my RAM (Corsair Dominator). Instead, I've moved the x61 to the front of the case, but I'm a little worried that my GPU is not getting adequate cooling now. My plan is to add 3 120mm fans to the top, but I was wondering, is doing that okay? It doesn't look like there is a dust filter on the top of the case.
Sorry for any cooling ignorance, pretty new to this!
First I'll offer my consonances for the X61.
It's cools about the same as most top tier air coolers, but costs more. At least it has decent fans which is why the sound level is not as extreme as other CLCs. Same fan blade design as TY-140 / 143 / 147 / 147A, 149 and NF-A15 / A14 have used for many years .. only difference is housing. Simple overlay of half of one fan on the others shows they are virtually the same.
The Eveolv ATX comes stock with PH-F140S:pP, which have simalr flow @ rpm as your FX 140 V2 do. To improve the flow you would need a couple 2500rpm fans like your radiator fans .. anything less will not match the flow potential of radiator. I'm not sure what would be best, but at a guess stacking another pair of radiator fans on radiator might be best option.
Adding a back exhaust probably won't help (maybe if it's same fans as on radiator) and adding top intakes probably won't help because where is all this intake airflow potential supposed to flow out of the case? For air to enter case, it has to have at least the same area to leave the case .. what flows in must flow out / what flows out must flow in.
Using one of top fan mounts as intake or exhaust will only work if the fan / radiator mounting tray has all other holes sealed so the airflow through the fan cannot circle around and come back through the fan.
While the Evolv front looks like it's not much vent area, but the vent area there is is totally unrestricted by grill strips or mesh. This means it's 100 sq cm of area is all airflow compared to most vents with mesh loosing 20-50% of their area to the mesh and another 30-50% do to turbulence.
Sorry Pex, maybe I'm misunderstanding you, but Fractal Design GP 12 and GP 14 are not as good as PH-F140SP they are 52cfm / 0.88 mm H2O & 68 cfm / 0.71 mm H2O compared to 82 cfm / 1.33 mm H2O for F140SP. That is less free airflow rating than the stock case F140SP fans have, and the even lower pressure rating to overcome resistance they would flow significant'y less air .. and that's assuming the stock specs are accurate. Besides, the specs on stock X61 fans are better than PH-F140SP, and considering their design it's fair to assume the are.