H150i RGB Pro XT bad performance

[truhgoy]

Hello Everyone,

 

I have just bought a new H150i RGB Pro XT for my i7-8086K (not overclocked). Should be a bit of an oversized solution, but I'm already planning for the future :D: .

 

Though I have build all my computers so far by myself I have no hands on experience with water cooling.

So some issues arised and I am not sure if they are normal behaviour or not:

 

(room temp 23°C, all tests with open case, radiator outside the case in a push configuration)

1. At idle my CPU temp is 33°C
   
2. At load (Cinebench R20.060) temp go high as 94°C with an average of 89°C
   
3. At idle water temp (value from iCUE) is about 27°C and at load about 30°C
   
4. There is (even at 100% speed) only minimal airflow through the radiator
   
5. Pump has a very annoying high pitched sound (I already turned the case to get rid of possible bubbles)
   

 

What I have done/checked so far:

• Turned the case in all direction and gave it a shake to release bubbles from pump
  
• Set all setting in iCUE to the highest possible
  
• Used an alternative cooling paste and checked if preapplied paste was in good contact (it was)
  
• On the tubes I can feel the water flow
  
• Radiator get warmish even on full load
  

 

So maybe some of you with more experience with water cooling have ideas what I can try next.

Any help is appreciated :winking:

[huzidada]

I'm interested to know what your pump speed is set to extreme as I have a bit of the same performance and pump noise issues as you.

However these chips kinda ran hot, with delids bringing that temp down a lot.

Yours seems excessive tho, have you made sure backplate is mounted correctly and you have righted it down properly?

[c-attack]

[*]At idle my CPU temp is 33°C

[*]At load (Cinebench R20.060) temp go high as 94°C with an average of 89°C

[*]At idle water temp (value from iCUE) is about 27°C and at load about 30°C

[

 

 

Your coolant to CPU differential is more than 60C. That's extreme and unsustainable. That is either physical contact or voltage. Since you have already checked the contact, find out exactly how much Vcore is being loaded when running R20.

 

The only other possibility is some type of unusual slow down as water passes through the block, but that would also be present and idle and middle loads. You room/coolant/CPU idle temps all suggest things are working well and are at the lowest possible values.

[truhgoy]

Thanks for these quick replies!

 

Since you have already checked the contact, find out exactly how much Vcore is being loaded when running R20.

 

Ok I have double checked for clock speeds and voltage. And I was actually running with a multiplier of 47 instead of the default 43. So I got that wrong, sorry :[pouts: *runs away embarrassed*

 

Now with actually using the cpu at stock speed Vcore is at 1.2 Volts and temps are also in a more ok range: CPU max temp 75°C, avg 72°C

 

However these chips kinda ran hot, with delids bringing that temp down a lot.

 

If this is the case then the new numbers above are within expectation for a "hot running" chip?

 

I'm interested to know what your pump speed is set to extreme as I have a bit of the same performance and pump noise issues as you.

 

If the pump speeds up it goes to a little bit over 2600 rpm. And yeah the noise is more annoying than too loud.

[huzidada]

Thanks for these quick replies!

 

 

 

Ok I have double checked for clock speeds and voltage. And I was actually running with a multiplier of 47 instead of the default 43. So I got that wrong, sorry :[pouts: *runs away embarrassed*

 

Now with actually using the cpu at stock speed Vcore is at 1.2 Volts and temps are also in a more ok range: CPU max temp 75°C, avg 72°C

 

 

 

If this is the case then the new numbers above are within expectation for a "hot running" chip?

 

 

 

If the pump speeds up it goes to a little bit over 2600 rpm. And yeah the noise is more annoying than too loud.

 

So even at stock speeds that is quite hot, the chip should have No issues running 4,7GHz and above. There is two problems. The stock TIM that intel uses under the heatsink. And this cooler.

 

I might have the same issue as you but this AIO is not good. Ive had like 6 different Corsair AIO and this is the first one that makes a lot of noise and cooling sucks.

I thought I sorted out my problems yesterday and today under the same conditions, its running hot! I definitely preferred the Asetek pumps

 

Also I think we are both running low RPM on extreme settings and because we both have HOT chips it shows. Think those running on Ryzen, which isa the large majority of new builds that bought this cooler, dont show it as much. The product definite sucks

[c-attack]

T

Ok I have double checked for clock speeds and voltage. And I was actually running with a multiplier of 47 instead of the default 43. So I got that wrong, sorry :[pouts: *runs away embarrassed*

 

Now with actually using the cpu at stock speed Vcore is at 1.2 Volts and temps are also in a more ok range: CPU max temp 75°C, avg 72°C

 

If this is the case then the new numbers above are within expectation for a "hot running" chip?

 

That seems to be in normal range for me. I think it is highly likely your motherboard was using its auto voltage table for the 4.7 GHz speed and piling it on. My guess is it was running 1.35-1.40v and that is the cause of the extreme temperatures. 1.375v is what I needed to run my 8700K at 5.3 GHz, so that is the range you dipped into. It is also very likely you can run that same 4.7 at 1.20v. The Z370 boards were still very aggressive with their auto voltage and there are large gains to be made by hand tuning this value with regard to the clock speeds.

[truhgoy]

Ok thanks for all the response.

 

I have decided to send the AIO back (sorry Corsair) and go with a custom loop as soon as I have upgraded some other things.