[SOLVED] Cpu at 95c under full load with no OC

[BigJohnnyTwoToes]

I used to have my i7-6700k at 4.7ghz and using my current case/fans/corsair h100iv2 cooler setup could keep max load temps at 80 or lower. Now even at stock 4.0ghz (I even tried undervolting to 1.2v) it gets up 95c less than 5 mins into real bench. Corsair link says my pump is spinning and my fluid temp goes from around 33c to 38c. I felt the hoses and there is a difference in temperature between them so I assume the water is flowing however the hot one doesnt feel that hot to me (not sure how hot it should be).

Asus z170a motherboard with latest bios
Asus rog strix gtx 1070
Corsair rgb 32gb ram
2 Noctua fans on the corsair rad pulling fresh cold air across the radiator and into the side of the case and the stock corsair fans blowing it out the top and top back of the case. I have an aggressive fan curve as well.

This set up used to work well.

I'm not sure how or when this happened because I hadnt stress tested my pc in a while. A game crashing prompted me to do so. Reapplying fresh thermal pace did not do the trick and I tried returning my bios to default and updating it as well. Idle is 30-40c but only at stock, was idling 40-55 when overclocked.

I feel like it has to be the cooler or the CPU but I dont know how to check short of trying a different cpu or cooler which I dont have at the moment. Thoughts?

 

[BigJohnnyTwoToes]

any help would be greatly appreciated

 

[Phaaze88]

Your pump is dying. Do not trust what Corsair Link is telling you.
Replace it as soon as you are able. Contact Corsair if it's still under warranty.

Download and run HWINFO. It might give you a more accurate reading on the pump activity.


EDIT: Take a good look here at the reviews of this product: https://www.newegg.com/p/N82E16835181103
Notice all the pump failures, and how some of them mention how Corsair's software doesn't pick it up? That's what you're going through right now.

 

[BigJohnnyTwoToes]

Your pump is dying. Do not trust what Corsair Link is telling you.
Replace it as soon as you are able. Contact Corsair if it's still under warranty.

Download and run HWINFO. It might give you a more accurate reading on the pump activity.


EDIT: Take a good look here at the reviews of this product: https://www.newegg.com/p/N82E16835181103
Notice all the pump failures, and how some of them mention how Corsair's software doesn't pick it up? That's what you're going through right now.

Thanks for replying. HWInfo says the pump is running fine as well. I have read some reports of there being partial blockages in the pump or the liquid drying out which obviously less efficient, maybe thats what it is, but either way i am leaning towards the cooler as well. I was curious if there was any sort of CPU or software issue besides higher voltages that could lead to higher temps like that under load, but I havent found anything really. I ordered a noctua NH-U12S air cooler and will try that today. If that doesnt improve the temps, then back to the drawing board regarding potential issues with the CPU/motherboard/software.

 

[Phaaze88]

Unless you're running an overclock, which you aren't, there shouldn't be an issue with voltages.

 

[BigJohnnyTwoToes]

Unless you're running an overclock, which you aren't, there shouldn't be an issue with voltages.

Yea I dont have an issue with voltages I said i wondered if there could be other cpu/mobo/software issues besides voltages that could be spiking the CPU temp.

 

[BigJohnnyTwoToes]

it was the cooler, noctua nh-u12s immediately solved the issue. now i can run at 4.7ghz again and stay below 80 C under 100% load. Stock doesnt get above 60C at 100% load and my idle is 25-30C.

 

[Phaaze88]

Well done. 👍