I5-9600k 9th gen temp after stress test.

Dec 11, 2018
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Hi
I ran prime 95 on this new CPU I have. It's cooled with a cooler master masterliquid ml240r. The temp went up as far as 100c and I don't know if this is normal or not.
If anyone has same CPU and cooler setup or any ideas if this is ok, please let me know.

Update: does the pump need extra power or can I just run it from the CPU headers on the gigabyte z390.aorus ultra mono I have. To get all the rgb in sync, I left out the cooler master control box which I know has a socket for sata power.

Thanks
 
Solution


Pretty much just that. The pump should be at 100% all the time. And I would set a Fan RPM / C temperature ramp to control the heat based on the CPU Temperature. That way the fans...

SubaruWRX244

Honorable
May 11, 2017
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100C is super hot. At that point the CPU would be thermal throttling. I'd make sure the watercooler is making contact with the processor. Also double check and make sure you have thermal paste. I'd personally look at the instructions . Your temps should be at like 65C load. I'd say 75C tops but I know Intel runs hot. Anyways whatever cables came with the watercooler, you most likely need.
 

SubaruWRX244

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May 11, 2017
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Liquid coolers can be hooked up on the CPU_Fan or the AIO_Pump header.
 
Dec 11, 2018
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I've got the paste on that came with the cooler.
The instructions that came with the controller to set up was crap. I wired it up the way the instructions said but couldn't get the rgb to work with the controller at all.
 

SubaruWRX244

Honorable
May 11, 2017
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Well you might wanna get the RGB to work on it because to me this issue sounds like your Pump isnt on and working. If the pump is working then the RGB should be on, if im correct.
 
Dec 11, 2018
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I read on the below link that if you connect to CPU_FAN header, you need to set some type of curve.
http://www.tomshardware.co.uk/answers/id-2791021/water-pump-plugged-cpu-fan-header.html

 
Dec 11, 2018
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All the wires coming from the pump (2 in total) are plugged in. RGB is working.
 
The pump is likely not working. It can be plugged or the pump impeller is no longer turning for whatever reason.

The pump power source needs to be at 100 %. So set that in the fan control if you are using the CPU fan header. But if you have a pump header use that for the pump, and use the CPU fan header for a fan.

As stated in the other thread that you posted in, If the CPU temperature is high, the radiator will be warm or hot if the pump is working (at least for a few minutes). So you can tell if the pump is working that way.

It appears to me that the pump isn't working. You should consider replacing it.
 
Dec 11, 2018
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I'll check that out when home on Sunday and I'll let you guys know exactly where I've plugged pump into. It's only when I stress the CPU it goes high. Gaming and other stuff, not so much.

**update 14/1/19** the rad is getting warm to touch
 


Yes they can but I think there may be a setting in the BIOS that needs changing.
This is what Corsair states for their pumps.

"We are still getting a lot of inquiries regarding our AIO coolers that are using the 3pin connector to power the pump. Many of these questions are pertaining on where to plug them on the mobo. There's a couple of things that we have keep in mind when installing these coolers. For optimal cooling performance, you want to make sure that these pumps are getting constant 12v from the mobo fan header. They are designed to run on 12v and setting them to anything less will degrade their performance overtime. To ensure that you’re feeding the pump 12v at all times, you need to do the following:

1. Connect the 3-Pin pump connector to the 4-Pin fan header marked “CPU_FAN” on the motherboard.
2. Boot the system and enter BIOS.
3. Locate the FAN CONTROL section of the BIOS.
4. Set the “CPU_FAN” to VOLTAGE CONTROL.
5. Set it to 100% to ensure that the pump operates at 12V.
6. Press F10 to save and exit the BIOS. "
 
Dec 11, 2018
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I moved the pump 3 pin connector to SYS FAN PUMP 6, went in to BIOS and set this SYS FAN PUMP 6 to Manual and 100% and i think its making it worse.
this is really frustrating
 
Dec 11, 2018
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im pretty happy that the paste is ok and to be honest i hate taking coolers off and on again. I will try this once i get the software side set up properly. has anyone else used this cooler and motherboard and managed to set it up correctly?

 
Dec 11, 2018
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i went in to BIOS and set the pump to run at 100% and left the fans to fend for themselves on auto.
I used StressMyPC and that topped out at 75 degrees. I switched to Prime 95 and BAM! straight to 100 degrees.

is it the software? or me? or both?
 
Dec 11, 2018
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pump was warm to touch. set the pump to 100%.
StressMyPC maxed temp approx 75 degrees. Prime95 shot it up to 100 degrees. went back to StressMyPC and still 75 degrees. ARGH!

 
Dec 11, 2018
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i am using v29.4 build 8
 

CompuTronix

Intel Master
Moderator
rogerskeith88,

There's the problem ... wrong version.

You might want to read this: Intel Temperature Guide - http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html

Please download and run Prime95 version 26.6. Run Small FFT's for just 10 minutes:

• Prime95 v26.6 - http://www.mersenneforum.org/showthread.php?t=15504

Not all loads are created equal. “Stress” tests vary widely and can be characterized into two categories; stability tests which are fluctuating workloads, and thermal tests which are steady workloads. Intel tests their processors at a steady 100% TDP workload to validate Thermal Specifications.

Prime95 version 26.6 Small FFT's is ideal for CPU thermal testing, because it's a steady 100% workload with steady Core temperatures. No other utility so closely replicates Intel's workload test conditions.

Utilities that don't overload or underload your processor will give you a valid thermal baseline. Here’s a comparison of utilities grouped as thermal and stability tests according to % of TDP, averaged across six processor Generations at stock settings rounded to the nearest 5%:

All tests will show 100% CPU Utilization in Windows Task Manager, which indicates processor resource activity, not % TDP workload. Core temperatures respond directly to Power dissipation (Watts), which is driven by workload. Prime95 v26.6 Small FFT’s provides a true and steady 100% workload, so if Core temperatures are below 85°C, then your processor should run the most demanding real-world workloads without overheating.

4th through 9th Generation i9, i7, i5 and i3 CPU’s have AVX/2 Instruction Sets. Prime95 versions later than 26.6 run AVX/2 code on the CPU's Floating Point Unit (FPU), which is an unrealistic workload at nearly 130% that can cause Core temperatures to run up to 20°C higher.

Many 6th through 9th Generation motherboards address the AVX problem by providing “offset” adjustments (downclock) in BIOS. -3 (300 MHz) or more may be needed to limit Core temperatures to 85°C. Since 4th and 5th Generation don’t have AVX offsets, you can create a BIOS Profile for gaming, and a downclock Profile for AVX apps such as rendering or transcoding. If you don’t use AVX apps, BIOS should still be configured for it, as certain utilities use AVX for stability testing.

Q: Are you using an AVX offset in BIOS?

AVX can be disabled in Prime95 versions later than 26.6 by inserting "CpuSupportsAVX=0" into the "local.txt" file in Prime95's folder. However, since Core temperatures will be the same as 26.6, it's easier to just use 26.6. As per Intel’s Datasheets, TDP and Thermal Specifications are validated “without AVX”.

See page 87, Section 5.1.1 Thermal Considerations, 1st paragraph, 2nd sentence:

8th and 9th Generation Intel® Core™ Processor Families Datasheet, Volume 1 - https://www.intel.com/content/www/us/en/products/docs/processors/core/8th-gen-core-family-datasheet-vol-1.html

Also, I have analyzed "StressMyPC". Although the CPU test is a steady workload, it's only about 65%, which is relatively light and is slightly less than AIDA64's individual CPU test shown lower left on the scale above. StressMyPC is therefore inadequate for testing processor thermal performance, and does not provide a valid thermal baseline. However, what it does provide a false sense of security for users since Core temperatures will be misleadingly low.

CT :sol:
 
Dec 11, 2018
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first off, thanks for letting me know i had the wrong version.
i ran it for 10 mins and it hit top temp of 96 degrees.
also i dont know what AVX is so couldnt tell you if i was running it or not.
 

CompuTronix

Intel Master
Moderator
Your processor has "Instruction Sets" which are abbreviated "code" paths programmed into the CPU that allow it to more rapidly execute certain software codes. One such Instruction Set is AVX2, which imposes a brutal workload of nearly 130%, as I explained above.

Look at CPU-Z about half way down at the line for "Instructions" ... note the AVX and AVX2 Instructions:

t4mLfoe.jpg


Intel does not use them for validating thermal performance.

Prime95 v26.6 also does not use AVX, and therefore complies with Intel's Datasheets. However, later versions such as 29.4 which you first ran does use AVX, which is a brutal and excessive workload, and is why your Core temperatures instantly pegged at Throttle temperature at 100°C.

Prime95 v26.6 is a true 100% workload, so unlike v29.4 (workload too high) or StressMyPC (workload too low), 96°C is a valid thermal result.

Here's the nominal operating range for Core temperature:

Core temperatures above 85°C are not recommended.

Core temperatures below 80°C are ideal.

PdancCI.jpg

Core temperatures increase and decrease with ambient temperature
. "Standard" or normal ambient (room) temperature is 22°C or 72F.

Q: What is your ambient temperature?

If your pump and fan issues are indeed corrected, AND if your ambient temperature is at or near 22°C, then your cooling performance isn't quite as effective as you might like. Your 240mm AIO cooler should probably be doing a bit better at cooling a soldered, non-overclocked 6 Core processor without Hyperthreading.

If BIOS is running "Auto" Core voltage, if you switch to manual and undervolt the CPU, Core temperatures will decrease.

CT :sol:
 
Dec 11, 2018
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my sitting room where the PC is, is typically between 20-25c normally.
Would under volting not mess with the speed of the processor?
Also would it be worth my while to redo the thermal paste with some Noctua paste I have instead of the stuff that came with the AIO cooler?

 

CompuTronix

Intel Master
Moderator
rogerskeith88,

Thank you for the information.

If ambient temperature is within a few degrees of normal, it means that it's not a significant factor in troubleshooting abnormal Core temperatures. When users don't include ambient temperature with system specs, then we always need to ask so we don't proceed on false assumptions.

Since ambient directly affects Core temperatures, it can be a huge variable, as some users run their rigs on the Arctic Circle, while others are on the Equator without A/C.

Undervolting does not affect clock frequency; it affects stability and Core temperatures. If Core voltage is too low, then the processor becomes unstable. Higher Core voltages increase Core temperatures. "Auto" typically applies considerably more Core voltage than is necessary to maintain stability.

Regardless of processor speed, the lowest possible Core voltage will achieve the lowest possible Core temperatures. The objective is to find the lowest voltage while maintaining stability. The procedure for undervolting is very similar to overclocking, except you're not changing Core speed.

If you intend to eventually overclock your 9600K properly, then part of the procedure involves minimizing Core voltage. Regardless of whether you overclock or not, minimizing Core voltage (Vcore) is explained in most overclocking guides. Here's a good place to start:

Beginners guide to overclocking your CPU - http://www.tomshardware.com/faq/id-3761568/beginners-guide-overclocking-cpu-explicit-testing-guidelines.html

Concerning thermal compound, it never hurts to reapply, if for no other reason than to inspect the spread pattern of the previous application.

CT :sol: