Rebuilt Watercooling Loop-- Poor Temperatures

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I'm rebuilding my WC loop and I'm a little concerned at the high temperatures I'm experiencing. This this characteristic of this hardware?

I'm running an i5-11600k at straight stock settings. Running Prime95 I'm getting 87C CPU temps. That alone is probably OK but seems suboptimal for my setup like something is wrong. I've bled the system. There is no air. There is no other components in the loop at the moment.

I'm running a Swiftech MCR320-DRIVE-R3 which is a triple 120mm radiator (triple 1000rpm fans exhausting) with a DDC pump and res integrated. The waterblock is a AquaComputer Cuplex Kryos Next.

Is something going wrong here or is this a fair result?

qJ7HnQ1


Thank you,

Beefey
 
Could me many things. Gunk in the cpu block? Block mounted wrong? Blockage somewhere in the loop? Low water flow?
 
When I rebuilt the loop I opened up the block and scrubbed it out quite well. I flushed the system with Primochill Sysprep for 24hours per the bottle. When I pumped the water out it appeared quite strong.

Are the temps poor or is that what I should be expecting? Is this chip just a power hog?
 
I'm running an i5-11600k at straight stock settings. Running Prime95 I'm getting 87C CPU temps.


This is your problem.

Running Prime95 on ANY modern cpu is just insane. If you *must* stress test a modern cpu at stock settings run realbench, cinebench and if you must prime95 AVX disabled. Prime95 with AVX will just use unrealistic levels of current and even tho your cpu is 'stock' the motherboard is probably allowing it to boost way over the standard intel spec.

Assuming that you have no blockages and the block is making good contact then a better measurement of your loop is to go by the water temp. For example in this recent heatwave my loop temp at idle is around 28-30 degrees and tops out at around 35 degrees when under a reasonable load such as heavy gaming etc.
 
You're talking about your water temp under heavy gaming was 35*C? Processor temp under heavy gaming at 35C would be really kick butt...
 
Yeah I agree with darket
Ignore prime95
Run some stuff that's realistic
Of real life use
Prime95 after version 26 or something
Puts way too much heat through it
Due to avx
Do some heavy gaming
Or video transcoding etc
Basically test it with whatever you had in mind
To use it for
Used a lot of Swiftech stuff and never had any complaints
It's usually a cut above AIO like Corsair etc in terms of quality
Of components used
 
What is the idle temperature?
Check minimum processor state.
Also, when using stock, more often than not, the motherboard pushes more voltage than is required, running hotter than it should.
I don't know what is your use of your PC, but if gaming, I would run HWInfo and play for few hours and check.
As others mentioned, those tests don't represent realistic workload for 99.9% of users.
I can run AIDA stress test and push my 3900x to mid 70's, but doing any other thing, like gaming, never seen pass 60C. More like hoovering mid 40's.
 
I'd invest in a water temperature sensor, it can make diagnosing this kind of thing a lot easier, if the CPU gets hot but the water isn't getting warmer then you can see there is an issue with heat transfer between the CPU and the liquid.
 
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