Temps High on Custom Loop

  • Thread starter Thread starter mk1_salami
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If, instead of the EK radiators you were using Corsair or some other more restrictive radiator or also some restrictive water blocks, the pump could be an issue.
When I tried to replace 3 EK PE for 3 Corsair XR5, even the D5 was struggling, unless at 100%.
When I tried the EK distro for the O11, fitted with the 3.1 DDC, the pump wouldn’t even push the coolant through 2 XR5. Very poor performance. Tried a 3.2 version later and performance was good but the noise profile wasn’t for me. The 3.25, I guess, only use Sata instead Molex for power.
Angled fittings, at least every time I used custom loop, only affected flow of an angled 90 degrees fitting was fitted straight out of the “out” port of the pump. Used quite a lot of angled ones some times and no noticeable issues.
 
I've ordered a D5 pump/res combo. Might as well do what I can to fix the issue once and for all.
 
All dismantled and ready to receive new paste & pads and D5 pump/res combo. Let's see what happens. Predictions?

Before: CPU 90c, GPU low 70's.


 
Really can't see how temps won't be better
Especially since those were
With fans on full blast and pump too

Fingers crossed here for you
Especially since I queried the head on the xd3
 
GPU at 50s and CPU max at 60s, unless benchmarking. CPU sharing loop with GPU will run slightly hotter, but GPU properly cooled will boost as crazy.
For the last few times I tried some custom loop, the main benefit was for GPU. CPU would benefit for the quiet loop, but some AIO can offer very close performance. But GPU for temperature and noise is night and day.
 
Given you have an active backplate, the EK manual says your first tube connections were correct i.e. they should be opposite each other not offset.

www.ekwb.com

EK-Quantum Vector FTW3 RTX 3080/3090 Active Backplate - Acetal

EK-Quantum Vector FTW3 RTX 3080/3090 Active Backplate D-RGB - Acetal is a cutting-edge addition to the EK® Quantum Line. It is made to complement the existing EK-Quantum Vector FTW3 RTX 3080/3090 water blocks and actively cool the backside of all EVGA® GeForce RTX™ 3080 and 3090 FTW3 GPU.
www.ekwb.com www.ekwb.com

Manual is on the linked page above.

68C for a 3090 isn't terrible really. I have a 3080 with an EK reference block and when Folding it hits 60C with a 360 rad and **** fans. I don't think 68C is a problem.

The issue is the 90C CPU. Even if you had the block plumbed incorrectly it shouldn't hit 90C. My bet is a misfit.

Unfortunately with hardline, it can be a real bear to fix this kind of thing. Ideally you need to do a trial fit of the cpu block where you fit it, then immediately remove it and check your contact point and the paste spread, before fitting the tubing. Now you will need to drain, remove the tubes going into the cpu and remove the block.
 




case convertor

Getting there. Waiting on more thermal pads arriving for the backside of the GPU but mocked up for now to allow me to plan the runs. Only have one left to do (cpu to top of front rad) but ran out of time this evening.

More updates tomorrow.
 
There was an area in the middle which was pretty clear of fluid, like it was squashed out to the side. I thought maybe the lid of the CPU wasn't completely flat and considered lapping it, but "spinning" it on some glass revealed it was ok. I think maybe the thumb screws were not bottomed out.

Thing is, the more I read about 5900x it seems to boost to the moon until it hits 90c then stops. So it may be the case the CPU is simply seeing available headroom in the temps and boosting to accommodate for that? I guess I'll find out soon when it's all back together.
 
mk1_salami said:
There was an area in the middle which was pretty clear of fluid, like it was squashed out to the side. I thought maybe the lid of the CPU wasn't completely flat and considered lapping it, but "spinning" it on some glass revealed it was ok. I think maybe the thumb screws were not bottomed out.
Click to expand...
TBH seeing your big X on the GPU die, I'd be tempted to suggest you spread your paste in a thin layer. For direct die I always do, and for CPU water blocks also. Then you don't need as much pressure to spread out the paste and also don't risk gaps.
 
LuckyBenski said:
TBH seeing your big X on the GPU die, I'd be tempted to suggest you spread your paste in a thin layer. For direct die I always do, and for CPU water blocks also. Then you don't need as much pressure to spread out the paste and also don't risk gaps.
Click to expand...

I'd second this to OP, I always spread TIM and never had an issue with bad mount CPU/GPU, WC or air cooled.

mk1_salami said:
Thing is, the more I read about 5900x it seems to boost to the moon until it hits 90c then stops. So it may be the case the CPU is simply seeing available headroom in the temps and boosting to accommodate for that? I guess I'll find out soon when it's all back together.
Click to expand...

High loads air cooled or bad airflow in case and or high room ambient (ie non UK temps) is only times I have read peoples post have as high temperature. On WC setup I would think something is wrong.

9hrs folding at home running on CPU/GPU on my rig in below spoiler.

3QMPlqH.jpg
 
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check your gpu block again the way you have it on both sides means the fluid may bypass the card all together, leading to high gpu temps

it should be left and right, either way but never left/leftt or right/right if that makes sense
 
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.looks like you replace the original port terminal
So unlike normally you can go in /out
In a straight line so to speak
so unless he's flipped the new terminal 180 degrees
In right and out right does look correct
 
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in regard to the high temps it could be the way the radiators are setup, if you have all the heat from the gpu amd cpu going to a 280mm first then going to the 480, forgive me but the 280mm will struggle like crazy trying to cool around 500w+ heat, most of that heat will go to the 480 radiator but then you have that heat being blasted back at the components which will further heat things up which may expalin why your loop and components are getting so hot, at a very minimum a 360mm radiator should be cooling a gpu and cpu with a similar(360mm) or smaller (240/280mm) taking up the slack and cooling the water down before going to the pump and starting over.

you'll have to get creative with pump and fan rpms, but even then if the inside of the case is warm your loop wont be cool enough and everything will be warm to hot
 
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Holy moly, that's a lot of thermal paste :eek:

I've always been a "large pea" sort of guy and never had issues with coverage, but whatever works for you. I'm going to guess that the reason the paste seemed to be squeezed out of one side was either due to tightening one side of the cooler (instead of tightening corners in opposites) or because it was laid down on one side before the other?

Reassembly is the worst part of a hard tube build though, I hate it.

wookiee87 said:
in regard to the high temps it could be the way the radiators are setup, if you have all the heat from the gpu amd cpu going to a 280mm first then going to the 480, forgive me but the 280mm will struggle like crazy trying to cool around 500w+ heat, most of that heat will go to the 480 radiator but then you have that heat being blasted back at the components which will further heat things up which may expalin why your loop and components are getting so hot, at a very minimum a 360mm radiator should be cooling a gpu and cpu with a similar(360mm) or smaller (240/280mm) taking up the slack and cooling the water down before going to the pump and starting over.

you'll have to get creative with pump and fan rpms, but even then if the inside of the case is warm your loop wont be cool enough and everything will be warm to hot
Click to expand...

Loop order really doesn't matter.
 
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