Custom loop temps

[Robostyle]

I didn't found any threads regarding my question, only newbies winning "Oh, it's my first se loop, Am I doing something wrong" 

So, basically, I'm interested in temps, temps You can get with watercooling. Specificly, what temps would You count on with 8700K@1.4V and 1080 Ti @1V, under water - lets say, with top-tier waterblock like somethng from Aqua/watercool/EK, and 2x360 rads? Ambient temp, lets say, 25C?

Because I'm searching for flaws in my system, and can't get it.......
 

[MedievalMatt]

24 minutes ago, Robostyle said:

I didn't found any threads regarding my question, only newbies winning "Oh, it's my first se loop, Am I doing something wrong" 

So, basically, I'm interested in temps, temps You can get with watercooling. Specificly, what temps would You count on with 8700K@1.4V and 1080 Ti @1V, under water - lets say, with top-tier waterblock like somethng from Aqua/watercool/EK, and 2x360 rads? Ambient temp, lets say, 25C?

Because I'm searching for flaws in my system, and can't get it.......
 

what are you looking for specifcally.

 

In general, once you start overclocking the temp figured can vary (sometimes a LOT) chip-to-chip.  Silicone lottery.

 

Are you seeing some temps you think are abnormal?

 

Also, more radiators (or bigger ones) doesnt always mean lower temps.  Thermodynamics dictates that the ammount of thermal transfer between two materials is based on the relative difference in temperature.  In other words.  If you take the same system and check temps with 10C ambient... and again with 30C ambient.  the temps you get will be WAY different.  But the delta over ambient will likely be similar.

[Robostyle]

2 hours ago, MedievalMatt said:

what are you looking for specifcally.

 

In general, once you start overclocking the temp figured can vary (sometimes a LOT) chip-to-chip.  Silicone lottery.

 

Are you seeing some temps you think are abnormal?

 

Also, more radiators (or bigger ones) doesnt always mean lower temps.  Thermodynamics dictates that the ammount of thermal transfer between two materials is based on the relative difference in temperature.  In other words.  If you take the same system and check temps with 10C ambient... and again with 30C ambient.  the temps you get will be WAY different.  But the delta over ambient will likely be similar.

Damn....yeah, I must confess, shitty temps I have that I don’t like much. And its all about GPU. CPU isnt that much.

 

So, I have 8700K 1.37V at 5GHz and strix 1080ti, at stock (runs ar 1.063V however I successfully downvoltaged it to 1V at 2025 Mhz completely stable),

custom loop is entirely EKWB stuff, gpu fullcovered. D5 pump combo, and XE and PE radiators. Fans are NB eLoop 12 PS, 6 pieces, I have them running at ~850 rpm max under load, though therei is barely noticeable difference if I was pushing them at 1000 rpm. 

 

And, hell, GPU runs HOT as for me, 55C average with rare spikes up to 57-58C, VRM hit 60 max.

CPU runs 55-65 average with max hits up to ~80c , but I think thats up to overclock; at stock, it runs 30-50, 60 max spikes. Though I have it delided. 

Ambient is 25C with AC, but it’s like 45C out the window though, dunno if that matters. T of coolant is unknown, because I don’t have any means to measure it ATM, without chance of breaking the loop.

 

But I have such a feeling, that even if I had 30C in the room, I wouldnt run out of 49C mark with 1 cpu and 1 gpu, having 6 120mm units. And it really pisses me off

[MedievalMatt]

5 minutes ago, Robostyle said:

Damn....yeah, I must confess, shitty temps I have that I don’t like much. And its all about GPU. CPU isnt that much.

 

So, I have 8700K 1.37V at 5GHz and strix 1080ti, at stock (runs ar 1.063V however I successfully downvoltaged it to 1V at 2025 Mhz completely stable),

custom loop is entirely EKWB stuff, gpu fullcovered. D5 pump combo, and XE and PE radiators. Fans are NB eLoop 12 PS, 6 pieces, I have them running at ~850 rpm max under load, though therei is barely noticeable difference if I was pushing them at 1000 rpm. 

 

And, hell, GPU runs HOT as for me, 55C average with rare spikes up to 57-58C, VRM hit 60 max.

CPU runs 55-65 average with max hits up to ~80c , but I think thats up to overclock; at stock, it runs 30-50, 60 max spikes. Though I have it delided. 

Ambient is 25C with AC, but it’s like 45C out the window though, dunno if that matters. T of coolant is unknown, because I don’t have any means to measure it ATM, without chance of breaking the loop.

 

But I have such a feeling, that even if I had 30C in the room, I wouldnt run out of 49C mark with 1 cpu and 1 gpu, having 6 120mm units. And it really pisses me off

honestly.  Given your setup those temps seem roughly normal.  TjMax of the 8700K is 100C, so you have A LOT of headroom.  And I wouldnt worry about the 1080ti either.  They throttle at 80-90C.  again, tons of headroom.

 

to put thing in perspective, air cooled 1080ti cards typically hover in the mid 70s to mid 80s C with the settings you have.

 

Dont give too much credence to the CPU Spike temps.  they only last for a split second and are outliers.

 

You could try re-thermal pasting the GPU.  But honestly.  Seems normal to me from what ive seen from the likes of JayZTwoCents and the like.

 

if you look at it another way.  50C on your CPU is 50% of the thermal limit.  and your at like 60% or so on your GPU.

 

adding more rads isnt gonna help your temps at this point... fan speed might... but you are well into the realm of diminishing returns if you are only going for cooling performance.

 

You rig probably looks damn good tho  

[Robostyle]

Well, I’ve seen reports from people getting temps like 38-48C max under “full throttle”, with systems much complicated than mine. Yeah, only some of them specified the stuff they use. Basically, there is much profit from adding rad surface, moreover, rad surface that being airflowed. I’ve seen that when I was selling my vardars - it happened so that I left with only 5 fans within 6 rad sections. Temps raised instantly by 5c.

 

then I’ve bought eLoop, and temps’ve gone up at 5C. But I don’t really regret about changing fans - vardars had a horrible acoustics.

Still, at the same speed, I had 50-52C under load with vardars. I think GPU temp should have been (and should be now with eloops) a bit lower? Like 10C?

 

p.s. yup, I like the aesthetics, it lacks hard tubes though, so it doesnt look that much pretty as jayz2cents’s builds.

[Robostyle]

Nope, it's definitely something wrong. I've launched less OP Fallout 4 today, thus it burned the GPU up to 60C chip/ 63C VRM. I've reset vram overclock (it was 12GHz total) to stock settings, but You know, I've got 58C instead of 60C/ Not much for a change. 

And the most noticeable thing about all this, is that how fast it raises and devreases the temp. It gains like +5-10C instantly when load starts. Therefore, if You shut down game/app/etc, that loads the gpu. Or when you just close or minimize the game's window, temp instantly drops from 58C to 45-42C. 

I'm blaming waterblock for now.