Normal AIO Cooler temps..

[snegglemeth]

So i got a question.

 

I had a be quiet! Dark Rock 4 Pro, the temps of my CPU were like 35-45°C idle and almost 100°C at full load on Prime95, blend and custom(in-place). I upgraded to a Water cooler, a Z73 Kraken. Now im getting idle temps anywhere about 32-40°C but still have got full load temps of about 92°C on Prime95, even though i have got a water cooler now. I already tried to change the thermal paste, no changes in temps. Isn't that a bit too hot, even though i overclocked the CPU a bit? What are normal temps with a AIO water cooler? I also used 2 different monitoring softwares to make sure the temps were displayed right. (HWMonitor, Coretemp)

 

AVX2 and AVX were enabled at Prime95 torture test.

 

Hardware

 

CPU: Core i7 8700K (Overclocked to 4,8Ghz w/ 1.270V vcore)

Cooler: NZXT Z73 360mm AIO Water Cooler

RAM: 2 x 8GB Corsair Vengeance lpx 2666 mhz(dual-channel, XMP enabled)

Mainboard: Z370 Gaming Pro Carbon (MSI)

 

[Cyracus]

100º is where intel cpus thermal throttle (iirc) so you're probably getting better actual performance now that you're keeping it under that. But large AIOs like that are only a bit better at cooling than the top tier air coolers, and the 8700k is a top notch space heater.
You might consider a delid, even using quality paste and using the socket retention system to hold the ihs down (silicone gasket intel uses creates more of a gap, more gap=worse cooling) you should see a significant improvement (you don't have to use liquid metal for a delid, but as Steve showed it can be a huge difference)

 

[Tristerin]

What is your ambient temp?

[SuperStreetFighter]

It's already common knowledge that Prime95 is not for temperature testing, it's meant for stability testing of your CPU.

 

 

 

 

 

 

[Deffet]

What case do you have? Radiator placement matters alot. I just switched my 360 rad from top to bottom in my lian li pc-011 dynamic and temps went down like 20 degrees on my 7700k. The gpu was heating up the radiator earlier

[snegglemeth]

2 hours ago, Deffet said:

What case do you have? Radiator placement matters alot. I just switched my 360 rad from top to bottom in my lian li pc-011 dynamic and temps went down like 20 degrees on my 7700k. The gpu was heating up the radiator earlier

i got a 570X Corsair, its attached at the side of it, a 360mm. Its attached like this:

 

First the fans, then the radiator (fans blowing air inside)

[snegglemeth]

21 hours ago, Tristerin said:

What is your ambient temp?

Its 20-25 atm

[ExtremeMachinez]

On 6/22/2020 at 10:04 AM, snegglemeth said:

So i got a question.

 

I had a be quiet! Dark Rock 4 Pro, the temps of my CPU were like 35-45°C idle and almost 100°C at full load on Prime95, blend and custom(in-place). I upgraded to a Water cooler, a Z73 Kraken. Now im getting idle temps anywhere about 32-40°C but still have got full load temps of about 92°C on Prime95, even though i have got a water cooler now. I already tried to change the thermal paste, no changes in temps. Isn't that a bit too hot, even though i overclocked the CPU a bit? What are normal temps with a AIO water cooler? I also used 2 different monitoring softwares to make sure the temps were displayed right. (HWMonitor, Coretemp)

 

AVX2 and AVX were enabled at Prime95 torture test.

 

Hardware

 

CPU: Core i7 8700K (Overclocked to 4,8Ghz w/ 1.270V vcore)

Cooler: NZXT Z73 360mm AIO Water Cooler

RAM: 2 x 8GB Corsair Vengeance lpx 2666 mhz(dual-channel, XMP enabled)

Mainboard: Z370 Gaming Pro Carbon (MSI)

 

I know you posted this a few months back, and it may or may not be relevant anymore to your situation, but for others who come across this thread, it may help them. From what I could tell, upon looking up your case design, you should be able to implement a "Push/Pull" fan setup, with your 360mm radiator. That will help cool your processor down, (possibly) immensely. Meaning you need to install/have, based on your case design, 3 fans in front of the radiator, which is likely how it is already setup, pushing the air through the radiator, then the radiator itself, then 3 more fans on the other side, pulling the air from the other fans and radiator. That is one of a couple of things you can do to help keep your 8700k cooler, at both idle, and especially under load. I would also de-lid your AIO pump from the processor, and clean off both your copper plate, and the processor, of any thermal paste you previously used (if you buy the Thermal Grizzly Kit, it comes with alcohol pads to clean off your old paste), and replace it with liquid metal (https://www.amazon.com/dp/B078J4PSHM?psc=1&ref=ppx_pop_dt_b_asin_image). It's riskier to use, but the payoff is much more worth it, because it keeps your CPU cooler, by a few degrees Celsius, especially under extreme load. Lots of amazing reviews and great video's on how to apply this stuff to both the processor and AIO pump copper plate, using the applicator and Japanese black Q-tips (provided in kit). Just make sure you don't put too much, and don't let it touch anything aluminum, as it will eat through it, causing bad pitting, and possibly a chemical reaction, if water gets on it, while it's touching the aluminum. You do need to apply a bit of pressure with the q-tip, while holding it as vertical as possible, to spread around the liquid metal properly. I have seen reports of idle temps for example going from 50 to 60 degrees Celsius down to high 20's to low 30's degrees Celsius, using this product, and I can personally affirm this, because it happened for me as well. It's one of the best thermal metals on the market.

As a side note I almost bought the Kraken X73, but chose instead to get the MSI MAG CORELIQUID 360R instead.

 

Second thing you can do to keep your computer cooler, is HOW you overclocked your CPU. I run my computer at 4.6GHz on all 8 cores (could go higher easily, but I chose to keep it lower), plus turbo boost up to 5GHz. I changed my multiplier for the CPU and North Bridge (from 100 to about 106) to x46 instead of the stock x36, and let the MB automatically control the voltages, instead of manually increasing the Vcore. Changing the voltages on the Vcore, can help stability in certain situations, but dramatically increases the running temperatures, especially on an already furnace of a CPU. You may have to play around with your multipliers and settings, until you figure out the proper combination, but keep your Vcore voltage either on automatic, or as low as stably possible. I also overclocked my RAM, while keeping the voltages lower as well. Everything is extremely stable, and I run 40 to 50 degrees Celsius cooler, doing it this way, than it did before by just turning up the Vcore voltage. I was hitting the thermal throttle all the time before, and the CPU not only was running hot, but was heating up my room like a heater, and heating up my GPU, causing it to throttle back as well, because the air temp was getting so hot. Now everything runs cool (Max average is now 50 to 55 degrees Celsius compared to before which was 90 to 110 degrees Celsius).

 

Hope this helps you a bit, and I can help you with any other questions you may have, or links to things if you need. I've am an electronics expert, and have been building and fixing computers for over 30 years, and was an Electronics Technician in the Navy.

 

Hardware:

 

CPU: Core i7 9700K (Overclocked to 4.6GHz)

Cooler: MSI MAG CORELIQUID 360R - AIO RGB CPU Liquid Cooler

RAM: Corsair Vengeance LPX 32GB (2x16GB) 3200MHz C16 DDR4 DRAM Memory Kit – Black (Overclocked to 3800MHz)

Mainboard: ASUS Prime Z370-P II

GPU: PNY NVIDIA RTX 2080ti with Blower