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zakruti.com » IT - Software » Gamers Nexus
Stop Doing It Wrong: How to Kill Your CPU Cooler (AIO Mounting Orientation)

Stop Doing It Wrong: How to Kill Your CPU Cooler (AIO Mounting Orientation)

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Rating: 4.3; Vote: 3
A lot of PC builds online (including manufacturer photos & NR200P builds) incorrectly mount AIO liquid coolers, leading to pump noise/whine and early cooler failure. We've wanted to do this video idea for a long time now, but finally got around to it after seeing an increase in manufacturers incorrectly picturing liquid coolers installed in their cases. Bitfenix and Cooler Master have both shown installation procedures that can actually kill the cooler, while pretty much everyone else has shown some form of sub-optimal installation that will minimally hurt the acoustic performance of coolers. In instances of mini-ITX cases like the Cooler Master NR200P, we've noticed a lot of build photos on forums online (and in YouTube media, but we don't blame the YTers or builders for overlooking this) installing coolers bottom-mounted. This, we think, isn't an issue with the reviewers or the PC building enthusiasts, but with the educational materials provided with the cases. The fact that there is an explicitly mentioned bottom-mount for radiators in a case where it's very likely to be used is a problem, and any case with such a mount should include warnings against installing closed-loop liquid coolers with block-mounted pumps in these positions. Installing a custom loop bypasses this issue, since the pump is almost never going to be in the block, and therefore should never be at the top of the loop (it's more likely to be in the middle of the loop). But AIO CPU coolers should not ever be bottom-mounted with the pump at the top of the loop. Manufacturer websites (shown in this video) also commonly show front-mounted radiators with tubes at the top, which will become noisy as permeation increases, and sometimes can be noisy immediately. This video is a PSA to try and help reduce pump whine, pump noise, and prevent liquid coolers from dying early or overheating.
Date: 2020-08-23

Comments and reviews: 10


My case is a Phanteks Enthoo Evolv Shift where its only physically possible to install an AIO with the radiator far below the pump, which is shown on their product page and in Bitwit's video where he uses a Corsair H80i v2 (which I also used). It seemed ok, 3700X temps were a bit high so I tried swapping to an air cooler and mesh panels, still idle temps at 50c with precision boost and other automatic overclocks disabled. I think I just tried to pack too much into a small space for aesthetics and desk space.
This video will be very helpful for the next time I try AIO water cooling and I'll take more into account when picking an appropriate case and layout.

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OK, I am completely confused now after watching this video. I have an NZXT x52 Kraken (I think; it's the one with the nzxt logo and infinity mirror). The tubes come out from the right side of the water block/pump combo (not the top, not the bottom, but the right hand side) with the tubes curved down and then back up to the top of the radiator that is mounted to the front of the case. Am I to understand that this is the wrong way to orient the radiator and that the tubes should be at the bottom; essentially the radiator is mounted upside-down? Forgot to mention this is installed in the H200i Mini-ITX case
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Thanks for this. I mounted my Enermax LiqMax III (on my 3900X) in the top of my case. It runs great, no issues. I KNOW, Enermax is bad, but I got a good deal on it, and I'm keeping a close eye on the performance by writing down my idle and load temps once a week in my journal to clearly see any anomalies in the future and document when performance begins to degrade. At that point, though, I'll check liquid levels in the loop and see if it might just need a top-up. I've got a gallon jug of PG liquid, so I'm good there.
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My Corsair H100 mounted on top is cooling my i5 3570K for 8 years now. Never repasted ( I am lazy :) , and it's still cooling good for 8yrs old cooler (30-40C idle, 65-80C when gaming, depends how game is heavy on CPU, 85-90C with hard stress testing for stability).
Now I am running it 4.1 24/7, before I was running it 4.4 24/7. Highest I was going was 5GHz for HWBot competition, but that was just boot and screenshot. I think results are still on HWBot under nick Luconosa. I guess I have got amazing unit.

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Heya so,
Any and everyone using a GPU AIO is damaging their units without knowing, unless in a inverted layout then...
Can I ask why is the standard orientation nowadays like that ? Inverted orientation would fix both CPU and GPU AIO installations easily.
I was planning to invest in a G12 mod for my 1080TI but my case is so hard to work in, I wouldn't want to have to replace that AIO for a long time...

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I Have never used water cooling for myself. If I ever do It won't be with and AIO because I can't understand the lack of a proper way to take air bubbles out. As far as I'm concerned you only need somewher to put a hole so you can fill the tubes. Doing it in the metal takes just a screw. Even in already produced units you need just need a hole drilled. I'll wait ten more years so the manufacturers solve this.
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My case doesn't have space for the AIO at the top of the case because the ram is in the way. The AIO is mounted on the front with the cables at the top, if i move the cables so they sit on the bottom of the Case they end up touching the GPU's exposed metal, is that fine for the cable to touch the GPU? i swear they would be at more risk of perforation? anyone got any ideas?
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For those who wonder. This is only problem with closed AIO with water pump ending at the highest point of the loop.
If you watch video of tuber that builds DIY water loop, with pump installed lower then water level its different story.
As then it's easier to bleed out the air from the system when the tubes are on top of the front/back mounted radiator and so they do so...

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Great review. I might to change my case. My fractal design 7 case doesn t have enough top room to do push-pull so have got it the wrong way round at the front. Tut tut !!, A reconfiguration needed just for my Corsair H115 Platinum as not if the tubing is long enough to reach, especially since my Red Devil 5700xt might get in the way.
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This explains why i had such bad luck with AIO's dying on me, due to case layout they could only be installed front mounted, hose up - and relatively low down in the case. Today i flipped the rad, and used its sliding rails to slide it up into the removable DVD bay area instead which genuinely did remove some pump noise.
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