CPU suddenly overheating

[James Shock]

I've got a h100i v2 + i7 4770k and literally within a day my pc is freezing when im in the middle of GTA 5 because of the cpu temperature which is hitting upto 100 celsius. Ive done some aida64 testing and its saying my cpu is throttling and i have no clue why and ive felt the heat sink that's fine and only one of the pipes is hot (which is normal) furthermore my idle temps are 40-50 which is still even a little high for idle. i have no clue whats happening and why its suddenly happened when ive had this pc for years.

aida64 test - https://imgur.com/a/Zx508

 

[WildCard999]

Pump failure may be the reason.

 

[MeanMachine41]

Hi James

Tim (Thermal Interface Material) does not last forever so you need to remove your H100i heatsink from the CPU and replace it with AS5 or MX4. Use TIM sparingly and with the appropriate method as it is there to fill the tiniest of voids.
If this fails to bring down your core temps as per AIDA64 then you will need to further check the AIO pump and cooling efficiency of your system including possible dust buildup within your Case.

 

[James Shock]

Pump failure may be the reason.

Hi James

Tim (Thermal Interface Material) does not last forever so you need to remove your H100i heatsink from the CPU and replace it with AS5 or MX4. Use TIM sparingly and with the appropriate method as it is there to fill the tiniest of voids.
If this fails to bring down your core temps as per AIDA64 then you will need to further check the AIO pump and cooling efficiency of your system including possible dust buildup within your Case.

I had my pc repaired last year and a different cooler was put in (the current one ive got now) and plus would the heat change be so dramatic within a day wouldn't it be regularly increase if the tim was degrading

 

[MeanMachine41]

Quote:
I had my pc repaired last year and a different cooler was put in (the current one ive got now) and plus would the heat change be so dramatic within a day wouldn't it be regularly increase if the tim was degrading. End Quote.

You would only know that if you monitored your temps every day to see if it was a dramatic change and besides, you are going to have to remove the AIO and replace your TIM anyway. There have been cases where air has entered the pump and efficiency is lost however this is rare but needs to be checked.
Your AIO is still under Warranty should this be the case.

 

[James Shock]

Quote:
I had my pc repaired last year and a different cooler was put in (the current one ive got now) and plus would the heat change be so dramatic within a day wouldn't it be regularly increase if the tim was degrading. End Quote.

You would only know that if you monitored your temps every day to see if it was a dramatic change and besides, you are going to have to remove the AIO and replace your TIM anyway. There have been cases where air has entered the pump and efficiency is lost however this is rare but needs to be checked.
Your AIO is still under Warranty should this be the case.

I don’t know if it’s under warranty because the pet got replaced last July but I’ll check. So you just think it’s the thermal paste?

 

[lumineZ]

Bad TIM after one year... meehh... I dont buy it... and not with temp in the 100C zone.
Unless ofc the ones who "fixed" the computer for you did a really bad job applying TIM...

Pretty sure your pump died on you.

Simple to find out.
Boot up and set pump speed to 100% and put your finger on the CPU block (thats where the pump is) no need to apply pressure, just touch it. And you should feel a slight vibration.
If you dont feel anything at all what so ever its a good sign that the PUMP is dead.
RMA it for a new one.

 

[MeanMachine41]

You can go thru the procedure of having it done for you at cost or spend an hour of your time at the most to do it yourself for just the cost of the paste. There are generally only three reasons for a core temp increase such as this. The third reason is when Overclocking and too much Core voltage has been applied. Have you been Overclocking?

 

[James Shock]

Bad TIM after one year... meehh... I dont buy it... and not with temp in the 100C zone.
Unless ofc the ones who "fixed" the computer for you did a really bad job applying TIM...

Pretty sure your pump died on you.

Simple to find out.
Boot up and set pump speed to 100% and put your finger on the CPU block (thats where the pump is) no need to apply pressure, just touch it. And you should feel a slight vibration.
If you dont feel anything at all what so ever its a good sign that the PUMP is dead.
RMA it for a new one.

The tubes were vibrating slightly don’t remeber the cpu block vibrating though

 

[lumineZ]

Unplugg the fans on your radiator and see if the tubes are still vibrating.
If they are your pump is fine and you are down to 3 things.

1. Airpocket lock... Fix: Move your case around + adjust pump speed up and down

2. Bad TIM appliance... Fix: this answer you should already know 😀

3. Lack of fluid / more air in the AIO... Fix: Get a new one.


Yes point number 3 can be a problem for some AIO’s the coolant won’t evaporate from the tubes, but excessively high heat loads can cause permeation. Pumps will suck air through the system as liquid volume decreases, eventually causing “gurgling” noises as air bubbles move around.