CPU temp jumping to 60C after a few hours of use?

[Luke Benson]

My CPU starts at around 35-40C when I turn on my PC but after a while it jumps to 50C-60C. Today it even jumped to 80C! What is going on? It was fine a month ago. I have to restart my computer just to lower it and it's annoying.

•Maximus VII Hero
•Intel Core i7-4790K
•16 GB G.Skill Ares
•Asus GeForce GTX 970 4GB STRIX
•Corsair H100i
•EVGA SuperNOVA 750G2

 

[mcnumpty23]

can you hear the pump?

or feel vibration if you put your finger on it?

 

[Luke Benson]

The PC gets noticable louder so that would certainly be the pump. What is wrong with it?

 

[mcnumpty23]

it may be the fans that are louder if they are set to increase as temperature increases

or it may be the pump--or you may just need to reseat the cpu block

 

[Joshua Martin]

I would at least try to reseat the CPU and repaste. It's definitely not normal temps.
I've a H50 on my I5 and it idles at 30C and never passes 40C on load.

Are you blowing case air over the radiator?

 

[Luke Benson]

I would at least try to reseat the CPU and repaste. It's definitely not normal temps.
I've a H50 on my I5 and it idles at 30C and never passes 40C on load.

Are you blowing case air over the radiator?

I set the radiator as an intake since that was recommended from the manual.

 

[Joshua Martin]

I would at least try to reseat the CPU and repaste. It's definitely not normal temps.
I've a H50 on my I5 and it idles at 30C and never passes 40C on load.

Are you blowing case air over the radiator?

I set the radiator as an intake since that was recommended from the manual.

Ok, how many exhausts vs intakes do you have?
If you have all your fans set to intakes with no exhaust, that could be a cause to the temp spiking. Have you checked your GPU temps to see if it's running hot also? Just throwing a few things out to help narrow down the issue.

 

[Luke Benson]

I would at least try to reseat the CPU and repaste. It's definitely not normal temps.
I've a H50 on my I5 and it idles at 30C and never passes 40C on load.

Are you blowing case air over the radiator?

I set the radiator as an intake since that was recommended from the manual.

Ok, how many exhausts vs intakes do you have?
If you have all your fans set to intakes with no exhaust, that could be a cause to the temp spiking. Have you checked your GPU temps to see if it's running hot also? Just throwing a few things out to help narrow down the issue.

My GPU is only 30C, sometimes 35C. There are five case fans. 3 intakes and 2 exhaust.

 

[Joshua Martin]

I would at least try to reseat the CPU and repaste. It's definitely not normal temps.
I've a H50 on my I5 and it idles at 30C and never passes 40C on load.

Are you blowing case air over the radiator?

I set the radiator as an intake since that was recommended from the manual.

Ok, how many exhausts vs intakes do you have?
If you have all your fans set to intakes with no exhaust, that could be a cause to the temp spiking. Have you checked your GPU temps to see if it's running hot also? Just throwing a few things out to help narrow down the issue.

My GPU is only 30C, sometimes 35C. There are five case fans. 3 intakes and 2 exhaust.

Ok, I would go ahead and reseat/repaste the CPU and see if that solves the problem.

 

[Luke Benson]

It'f fine now but I reckon in a couple of hours it'll jump again to 50C and then 70C or so. Should I reseat it anyway?

 

[Joshua Martin]

I would go ahead and repaste, just to make sure. If you get the same problem and still have the stock cooler that came with it, replace the H100i and see if it solves the problem. Could just be a bad H100i.

 

[Vlad Rose]

By chance, where on the motherboard is your pump connected? If it's on one that the motherboard regulates, it may be slowing down your pump; making the temps rise. I personally hooked mine straight to a sata power port via an adapter so I know it's always running 100% and I am control the speed of just the fans with my motherboard.

 

[Joshua Martin]

By chance, where on the motherboard is your pump connected? If it's on one that the motherboard regulates, it may be slowing down your pump; making the temps rise. I personally hooked mine straight to a sata power port via an adapter so I know it's always running 100% and I am control the speed of just the fans with my motherboard.

This is a very good suggestion and something I forgot about it entirely.

If it's plugged into the CPU fan header, it needs to be set to "full speed" in BIOS. Pumps are not meant to be throttled, they need to have full power constantly. Very high chance that this could be your issue if it isn't set correctly.

 

[mcnumpty23]

pumps dont need to be run at full speed

the point of pwm control is the pumps and the fans only speed up if the temperature rises to a point where they need to speed up

if it worked ok before--reseat the block--tightening it down in an x pattern a bit at a time so the block sits flat

open the side of the case and listen to see if you hear the pump working or put your finger on it to feel vibration

with those closed loop coolers you cant see if the coolant is flowing or not