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CPU Temps went down after applying Thermal paste but shortly went back up.

So I have a 4790K and recently my temps were a little high while playing games it would reach into the 70s. So I reapplied my thermal paste thinking that it was just old. When I rebooted my computer everything was fine the same game was barely touching 50 but then the next day back into the 70s. Did another reapply same thing. First I'm good then it goes up. Tried again with a different thermal paste same exact thing happened again. The first thermal paste I tried was the GC Extreme while the second was Antec Formula 7. And the game I was trying out is Overwatch. Any help at this point would be appreciated.
5 answers Last reply Best Answer
More about cpu temps applying thermal paste shortly back
  1. what HSF are you using? 70C would be typical under load for the stock cooler or similar modest performance heatsink. Changing the paste won't change that.
  2. I am using the h100I GTX Liquid cooler.
  3. Best answer
    If your liquid loop temperature starts low then rises, that could be a problem with the pump, kink in the tubing, some form of flow restriction or poor airflow through the radiator. If the pump/flow was completely dead, core temperatures would reach much higher than 70C.

    If you rearranged your wiring or did something else of the sort, you may have plugged the fans or pump in the wrong header.
  4. InvalidError said:
    If your liquid loop temperature starts low then rises, that could be a problem with the pump, kink in the tubing, some form of flow restriction or poor airflow through the radiator. If the pump/flow was completely dead, core temperatures would reach much higher than 70C.

    If you rearranged your wiring or did something else of the sort, you may have plugged the fans or pump in the wrong header.


    ok thanks I will look at my Cooler temps and see if they rise as well and make sure I didn't kink any wires or the tubes. I didn't need to unplug anything but I will make sure one didn't get pulled out. But if it was one of those wouldn't it be the higher temps the whole time though instead of rising the next day.
  5. The heat exchange block will absorb some of the heat, as does coolant that is inside of it. As long as there is at least minimal coolant flow, the temperature will creep up to equilibrium instead of skyrocketing into CPU throttling or thermal shutdown.
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