High CPU temperatures in a custom watercooled system
High CPU temperatures in a custom watercooled system
Hi everyone, so i just build my very first custom waterloop in my pc. Overall i'm very pleased with it, but there is one thing that is bothering me. The cpu temps are pretty bad, like worse than my corsair h100i v2 did. The cpu is a 6700k, delidded, overclocked to 4.5ghz at 1.35v, and i'm seeing temps as high as 83c in bf1 :/ idle temps are fine, around 25c tho. Gpu temps are fine also, never go above 44c
The order of the loop goes like this, pump-gpu-cpu-240 rad-360 rad-res. Pump is an alphacool vpp775 at stage 4, cpu block is an alphacool xp3 light and the rads are being cooled by nf f12s. Pump is running, made sure to check that
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. I already opened the cpu block as well, to see if there was any gunk in there (there wasn't), reseated the block several times, reseated the ihs several times all without results. The TIM i'm using is arctic mx4. I tried tightening down the block, loosened it up a bit, no results
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Do you guys have any ideas as i'm really out of ideas, other than de cpu block being absolute shit maybe?
Many thanks in advance!
pj
Water temperatures stabilize no matter the loop arrangement. The radiator's power and cooling fans influence the readings. Switching between GPU to CPU, CPU to GPU, or placing a radiator in between won't cause significant changes—just a few degrees at most. This advice was shared by Skinneelabs many years ago. After removing the block, did the paste apply uniformly on the base? Spike temperatures are typical for these CPUs because the die size is compact and soldered without IHS, which is attributed to delid. Nonetheless, gaming temperatures shouldn't exceed 80°C in a custom setup.
This should be the sequence. I presume fans are active on both radiators.
By transferring from the GPU directly to the CPU, hot liquid is introduced into it. At idle levels, this won't be significant. During higher loads, because the GPU has already heated the liquid, additional heat will be generated on the CPU. That's why you need two radiators—one for the CPU and one for the GPU.
As mentioned, the Pump-reservoir-360-cpu-240-gpu-pump will address your issue.
The issue remains even when testing just the CPU, reaching about 75°C, which is still too high for a custom loop. I'm considering adjusting the setup, but I'm unsure. Would changing the configuration help? Also, what if I use pump-res-gpu-360-cpu-240-pump or pump-res-gpu-360-cpu-240-pump? Because either option would require more tubing than I currently have. I'll give it a shot, but if it doesn't work, do you think the alternative I mentioned would be better?
Pump-reservoir-360-cpu-240-gpu-pump is the sole solution for your configuration. I’m uncertain why you don’t grasp this. The alternative you proposed won’t function. A reverse issue could arise, causing the GPU to overheat. You must insert a radiator between the CPU and GPU.
Alright, i'll give it a shot tomorrow. Maybe there was an other solution that didn't require me to rebuild the entire loop
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Ordered some extra tubing which should be here tomorrow. Do you have any idea on what could be more reasonable temps? I was kinda hoping around 60c, not sure if this would be possible.
Thanks alot for the help already
Pj
By making these changes, the temperatures on the GPU are expected to increase a bit because there are no longer two radiators. The GPU temperatures will still be lower than when they were on air. The CPU temperatures will drop significantly compared to their current levels. As for the exact values, I don’t know. But I believe you might be able to increase the CPU overclock if you wish.
Alright, so i just redid the entire loop. Mounted it in the order you told me to, but without luck
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I'm still seeing these high temperature spikes. The averages are good, around 60c, but the max temp spikes go up to the mid 70s on the first and second core immediatly after,starting aida64. The 3rd and 4th stay in the mid 60s. So there must be something that's wrong. The system is completely bled, moved the case around to make sure there were no airbubbles left anywhere. Do you have any other idea? Many thanks!
pj