damnengineer

They need to match, sure you have the c-series black label? It needs to specifically say it's RMx compatible, not just RM. I ran into a similar issue, I ordered an AX compatible set, and it seems it was not compatible with the AX1600i. https://cablemod.com/compatibility/

Well the results are in, with a dual loop I managed to keep the CPU at max 79 degrees and the CPU's at max 65 degrees with a 3 hour render. I did put the 240mm radiator in the back as well in the end so I can't really tell if it helps or not, since I didn't try it without it, but I don't feel like taking it apart again to try it out. Again, thanks for all the input, much appreciated!

All my fans were blowing outside of the case already. I only did tests with reversing the rear fan (without rad) but that didn't matter that much, but the fans on the rads have always been pointing outward. Anyway, I set up a dual loop now, it's leak testing, so we'll know tomorrow. The filter idea is a good one, gonna try that as well as soon as it runs. That's quite a lovely machine tiborrr. @c-attack I understand that you can't make a template for everything, but according to the configurator it should even handle it with one radiator less. I had it run it quite a bit longer still, at some point it reached +35. I think this is all happening because most people are not using hybrid rendering, so it's either CPU or GPU, I understand that putting 100% load on both CPU and GPU for a long period of time with hardware like this is asking for a bit of trouble. And yeah to be honest, temps where quite good when I only used CPU or GPU. Thanks for all the help and advice, I'm learning a lot during this whole custom water loop process and it's all really quite fascinating.

@tiborrr I know 85 degrees is within spec, but I let it run for 2 hours and it started throttling and reached 95 degrees. I'm not comfortable with running it at high temps like that, since I sometimes have renders that take more than 24 hours. The temperature of the liquid just keeps rising. I figured if I had seating issues, the CPU would get hot and the water not. @c-attack I didn't put anything in the back yet, extra components arrive today. I'll first try to add that rad as well, set it as an exhaust and make a dual loop. Guess we'll just see what happens because sometimes practice is different from what I might expect. I also expected that the configurator was correct in suggesting components but it clearly is not working out that well for my usage. I wonder if someone from Corsair could weigh in on this, if the configurator is basing this on long term full load on all the components or not. Or whether simply putting the CPU first in the loop would help, I see machines like the Bizon V6000 which actually have the CPU before the GPU's.

Good point, but according to the earlier corsair guide I should use all the radiators as exhaust, but somehow that doesn't appear logical to me, since you don't pull any cooler air in anymore. But say if that's the case then the air should go out. I'm not sure what that will do with temps in the case itself of course. I also like your last idea, once I get my components in, I'll mess around with it and just see what happens.

Thanks c-attack, I decided to order the 240 rad anyway, I'm also pretty sure that the 420 could handle it, but it won't harm to add an extra rad either I suppose. And I don't feel like redoing this another time. I have the fans for it already anyway.

When I plugged in my pump via molex only for a leak test, I'm sure it was running on full speed and not at 60%, I was also worried: https://forum.corsair.com/v3/showthread.php?t=193656 . After finishing my loop, the pump at 60% is pretty inaudible, while if I run it at full speed it makes the same kinda noise. I just kept the top port closed, air will stay on top of the reservoir anyway, I just added coolant if the level became a bit lower.

Thanks guys, to be clear, the front is already set as an exhaust, so I assume my initial idea will work. According to Corsair, it seems all rads should be exhausts. I had to triple check that, because I'm used to creating an airflow. I know the cpu is peanuts compared to the gpu's, but they manage to get rid of the heat much better. So I guess I'll just get an extra pump and rad (just to be sure) and see what happens. Just a quick question, can I reuse the coolant I have to drain? It's only been in a few days, I know that sounds a bit cheap with all the stuff I put together, but I don't like to waste things either if it's not necessary. Thanks again for all the advice, really appreciate it since I'm new to custom loops.

I think I'll just order an extra radiator, fans and pump, connect the CPU to the back rad and top rad and the GPU's to the front radiators. I'm a bit surprised of how much hotter the 3970x runs than the 2950x

Thanks for all the replies, @DevBiker, PBO is off, but I'll see what happens when I adjust the vCore in the bios, in Ryzen Master it shows max 1.32 - the vCore actually goes down to 1.144 when rendering @kuca poso, thanks, but that's not how it's set up, all the fans on the rads are exhausts. @acemaniwa871 yeah I noticed kinda late it was in reverse flow (was because I mounted it according to the manual on the motherboard and then actually tubed it differently), but I thought a few degrees wouldn't matter that much @c-attack, I was thinking of splitting the loop indeed and adding a radiator on the back of the case, just wondering which radiators I should attach to what.

I hope someone can give me some advice on what to do. When Hybrid rendering in Vray Next (that means full load on CPU and GPU's) I can't seem to keep the temperatures under control. After 15 mins of rendering the temperature of the Threadripper rises to 85 degrees (and it seems it keeps slowly rising). I know that's 10 degrees under the limit according to AMD, but it's a bit higher than I'd like it to be. GPU's don't get over 60 degrees, so that's fine. Water temps rise to 45 degrees, which seems a bit high to me. When I render on CPU only, the temperature stays under 70 degrees, which is also fine with me, I know this CPU is a hothead. Things I tried: reseated the CPU block, reapply thermal paste, and I used Thermal Grizzly compound since the beginning Reversing the fan on the back of the case: had no impact whatsoever. Messed with the fan curves, it helps a 2 degrees when I put the fans on full speed, but the noise becomes unbearable of course, it actually barely changes beyond 1000 rpm, besides that I also built this machine to be quiet. Increasing the pump speed matters the most, but right now it's already running at 4700RPM. So I now wonder if I should split the loop, because I guess a second pump wouldn't help much. System Specs: TR 3970x, Aorus xtreme trx40, 4x RTX 2080ti, 256GB 3200 mem, and there are 3 Gigabyte PCI gen 4 nvme drives installed, and I know these run hot too, but readings say they don't get over 50 degrees. Cooling: 1x XR5 420mm rad, 2 x XR7 480 rads all with ML fans in pull orientation, 1 ML 140mm fan in the back of the case. XC7 CPU block, XG7 blocks for the GPU's Attached a pic, don't mind the cable management and missing leds here and there, will fix it when it works properly.

Thank you and thanks for the heads up about the PWM lead

Just a quick question, is it normal for the pump to make some rattling noise when you are running the loop for the first time? It's been running for a leak test the past 2 hours and it makes a bit of a noise that I can best describe as "static". It for sure didn't run dry. I assumed it might be because the pump is probably running at full speed when you bleed the loop, but I'm starting to doubt my own theory now.

Ah that's good news, I liked this case because of all the space it offers. I won't be adding a second system in the case. Now I just have to wait until there's a 3970x available. Thanks for all the help.

Thank you Greg, I was indeed looking at the 1000D, I thought it would easily fit. I expected that the Gigabyte TRX40 Aorus Xtreme would fit with the 1000d with 4 gpus, unfortunately the 900D is not available here anymore, so I guess I'll have to take a look at another case then.