Need help understanding CPU overheating (CORSAIR H80i V2 Cooler)

[Corin_Wright]

Hey guys, In the last couple of months I have noticed steadily increasing CPU temperatures and steadily increasing fan noises to accompany it. 

 

It came nearly to a literal boiling point today when after sitting on 85 degrees Celsius for a couple of minutes my PC stopped responding and returned a CPU temperature warning message on reboot. 

 

Using Armoury Crate to track some temperatures, the CPU temperature was sitting at 85 degrees, with the CPU Package sitting at just over 90 degrees. 

 

There were no other alarming temperatures in the other components, with the GPU and Chipset at around 50 degrees and the motherboard at around 36 degrees.

 

When the CPU is not at 85 degrees it tends to build up to fluctuating between 68-80 degrees, without any obvious reason which correlates to an increase or decrease in temperatute.

 

The cooler I use is a CORSAIR H80i V2. 

 

So far the only action I have taken is to tighten the screws around the cooler to make sure they were firmly in place, but this doesn't seem to have changed much. Neither of the tubes feel particularly warm even when the CPU temperature is high. 

 

I suppose my next step would be to reapply thermal paste to the set-up, but I wanted some advice on here before I do that. 

 

If these symptoms point towards something in particular, your advice would be greatly appreciated!  

[ComradeBard]

How old is the cooler, when did you last change the thermal paste?

It sounds like the pump might have failed

[Hinjima]

1 hour ago, Corin_Wright said:

Hey guys, In the last couple of months I have noticed steadily increasing CPU temperatures and steadily increasing fan noises to accompany it. 

 

It came nearly to a literal boiling point today when after sitting on 85 degrees Celsius for a couple of minutes my PC stopped responding and returned a CPU temperature warning message on reboot. 

 

Using Armoury Crate to track some temperatures, the CPU temperature was sitting at 85 degrees, with the CPU Package sitting at just over 90 degrees. 

 

There were no other alarming temperatures in the other components, with the GPU and Chipset at around 50 degrees and the motherboard at around 36 degrees.

 

When the CPU is not at 85 degrees it tends to build up to fluctuating between 68-80 degrees, without any obvious reason which correlates to an increase or decrease in temperatute.

 

The cooler I use is a CORSAIR H80i V2. 

 

So far the only action I have taken is to tighten the screws around the cooler to make sure they were firmly in place, but this doesn't seem to have changed much. Neither of the tubes feel particularly warm even when the CPU temperature is high. 

 

I suppose my next step would be to reapply thermal paste to the set-up, but I wanted some advice on here before I do that. 

 

If these symptoms point towards something in particular, your advice would be greatly appreciated!  

You say that 'Neither of the tubes feel particularly warm even when the CPU temperature is high'. This is not a good sign at all, this could mean that the fluid is not being pumped around ( one tube should feel quite warm to the touch, at least when the CPU is at 95c ).  I think your pump is broken or loop is clogged.

[-rascal-]

Agree with @Hinjima.
If neither tubes are warm / hot, and you are seeing 80*C+ (even a CPU temperature warning) then that means the coolant is not circulating.

(I found that out real quick when the water pump in my open loop was starting to fail)

 

Is any of the monitoring software reporting any RPM / speed for the pump at all?

If it's reading 0 or N/A, that is another indicator that the pump could be acting up.

[Hinjima]

45 minutes ago, -rascal- said:

Agree with @Hinjima.
If neither tubes are warm / hot, and you are seeing 80*C+ (even a CPU temperature warning) then that means the coolant is not circulating.

(I found that out real quick when the water pump in my open loop was starting to fail)

 

Is any of the monitoring software reporting any RPM / speed for the pump at all?

If it's reading 0 or N/A, that is another indicator that the pump could be acting up.

Oh damn.. Had that happen myself back in the day with a free AIO I got with my 6600k...It lasted exactly 4 months.  Now its NH-D15 all the way baby I had an NH-D14 but I was curious about the AIO.  Did you see Greg Salazar's video on the MSI R series AIO recall?

[Crunchy Dragon]

Yeah, sounds like a dead pump to me. Time for a cooler upgrade

[-rascal-]

5 hours ago, Hinjima said:

Oh damn.. Had that happen myself back in the day with a free AIO I got with my 6600k...It lasted exactly 4 months.  Now its NH-D15 all the way baby I had an NH-D14 but I was curious about the AIO.  Did you see Greg Salazar's video on the MSI R series AIO recall?

 

Yeah I think I watched Greg Salazar's video first to hear about the MSi's failing AIOs, and then it started to blow up in YouTube...and eventually here on LTT.

A couple of LTT forum members starting threads about their CPU overheating using MSi AIOs.

 

 

[Corin_Wright]

8 hours ago, -rascal- said:

Agree with @Hinjima.
If neither tubes are warm / hot, and you are seeing 80*C+ (even a CPU temperature warning) then that means the coolant is not circulating.

(I found that out real quick when the water pump in my open loop was starting to fail)

 

Is any of the monitoring software reporting any RPM / speed for the pump at all?

If it's reading 0 or N/A, that is another indicator that the pump could be acting up.

Thanks for the advice guys, I appreciate it.

 

On the Corsair Link program, the pump is posting RPM's. Around 2000. 

 

Is it worth even trying new thermal paste? Or should I just get another one?

[Corin_Wright]

8 hours ago, ComradeBard said:

How old is the cooler, when did you last change the thermal paste?

It sounds like the pump might have failed

The pump is 8 years old. I changed the thermal past last year.

[Hinjima]

3 hours ago, Corin_Wright said:

The pump is 8 years old. I changed the thermal past last year.

Replace it. Average lifespan of an AIO pump is 3-5 years ( Can obviously last longer ).  Get a decent air cooler this time, no more changing!

[ComradeBard]

4 hours ago, Corin_Wright said:

The pump is 8 years old. I changed the thermal past last year.

Oh that a long time for it to be working (the aio, thermal paste should be completley fine)  Safe to say its the pump

[Corin_Wright]

Thanks guys, will follow the advice and replace it

[Hinjima]

44 minutes ago, Corin_Wright said:

Thanks guys, will follow the advice and replace it

Sounds good! Good luck   You will buy another AIO or air cooler?

[ComradeBard]

On 3/29/2023 at 2:42 PM, Hinjima said:

Get a decent air cooler this time, no more changing!

Agree 100%. Unless you have space restrictions it doesn't really make sense to get a 120x120 AIO, you can get about the same or better performance with an air cooler for the same price, with no pump noise and an easily replaceable fan as the only point of failure 

[Corin_Wright]

On 3/29/2023 at 10:53 PM, Hinjima said:

Sounds good! Good luck   You will buy another AIO or air cooler?

So, basically I just replaced it with the same model. If I have to replace it once every 8 years, it´s not the worst thing in the world

 

I seem to have it installed it alright and it´s now running at a much healthier 37 degrees on the lowest fan setting. I forgot how quiet it was when it´s working properly. 

 

Many thanks for the help guys.  

[Hinjima]

40 minutes ago, Corin_Wright said:

So, basically I just replaced it with the same model. If I have to replace it once every 8 years, it´s not the worst thing in the world

 

I seem to have it installed it alright and it´s now running at a much healthier 37 degrees on the lowest fan setting. I forgot how quiet it was when it´s working properly. 

 

Many thanks for the help guys.  

No Problem, that is why we are here on the Forum   Glad you got it sorted!