Originally Posted by kwel
Hey everyone. I actually subscribed just for this thread. Mainly to ask for some help from people far smarter at this than I am.
First off sorry for the screen name. should be kwelz, but I mistyped it and need to message an admin for assistance in fixing that.
I recently tried moving my Custom loop from my Thermaltake X71 to a Phanteks Evolv ATX. Love the case. Looks amazing. Well laid out. Fits everything I need...
Until my system got under load that is. Then my Temps went through the roof. CPU temps under load in some games were in the mid 80s. But even more concerning was that my water temps got so high It caused high pressure in the loop and lead to a failure.
Setup was as follows:
6700K /6800k (Tried both processors and a X99 / Z170 Deluxe Mobo)
2x 980 Ti in SLI.
EK 280 Rad in the front pulling air in.
Ek 360 Rad up top exhausting air. (Push/Pull by modding the tray and top of case)
140MM fan in the rear exhausting air.
Now obviously this caused negative Air pressure. As far as I am able to tell the main issue came from the top radiator though. The air was being forced up through the Rad and then would just sit in the top since there is not enough ventilation. Because of this the radiator did not cool down and in fact was slowly heating up meaning the water moving though it was not cooling down. In a word Heatsoak. I had liquid temps in excess of 60C which can and indeed did burn me when I came into contact with it.
Now the real question is how this can be avoided.
I am wondering about flipping the top fans around and using them as intakes instead. In this situation I would have extreme positive Air pressure which in this case may solve the problem. However I worry that I will not be pulling enough air in through the top and will starve the radiator leading to similar issues. Another option would be to find a machine shop and have them do ventilation holes in the top, but that would ruin the lines of the case.
In short am i just asking too much of this case. If so then I will have to relegate it to a secondary system without the cooling needs of my main system. Which I REALLY don't want to do.
Thank you all.
First things first... HOLY
at 60c. Make sure you check your pump is still working. That is dangerously hot. I get nervous at 40c...
Try this for the remaining holes in the top cavity:
Originally Posted by rfarmer
The guys with Evolv ATX have found that you need to cover the open area around your radiator mounted to the top bracket, this keeps hot air from reentering the case.
Your problem may actually be caused by the push pull setup and the close proximity of the top fan to the top of the case causing back pressure, causing hot air to actually go back through the fans and recirculate. The push fans then likely trap this air in the radiator fins. Now, this really should only be happening at high RPM. Try removing the pull fans and see if the temperatures go down.
I would switch your rear fan to intake so you get positive air pressure and some cool clean air.
Other than that, do you have a flow rate sensor? Does that water appear to be moving normally through the loop?