Windows 10: When is an ideal time to clean CPU?

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  1.    04 Apr 2018 #1

    When is an ideal time to clean CPU?


    Hey people!

    So I've not cleaned and applied fresh thermal paste on my CPU for over 2 years and I've started to notice my CPU temps increasing more than it used to. The highest temps I'd ever get on full load was about 40-45'C on liquid cooling. Recently I've noticed temps on full load at 50 and 55 with my CPU usually at 35-50 on automatic fan profile. I wouldn't know where to start with cleaning and applying fresh thermal paste on my GPU, however I've done so on my CPU a few times in the past. - The question here is, when is the ideal time to do this?

    What are your thoughts?
      My ComputerSystem Spec

  2.    04 Apr 2018 #2

    I wouldn't touch the CPU thermal paste unless absolutely needed. Cleaning out all the "dust bunnies" inside the case, including fans and the CPU cooler fins would be the first thing to do. Only if that doesn't help would I even consider redoing the thermal paste. I build my own desktops and have never had to reapply thermal paste and I've got one that I built back in the early Win 7 days that's still going without any CPU temps problem.
      My ComputersSystem Spec

  3.    04 Apr 2018 #3

    I have a liquid cooler - Corsair Hydro H90. The CPU pump block feels really hot, hotter than it usually should be.
      My ComputerSystem Spec

  4. Berton's Avatar
    Posts : 5,293
    Win10 Home and Pro, Win10 Insider Preview, WinXP Home Premium, Linux Mint
       04 Apr 2018 #4

    My latest new computer [18 months ago] has an interesting feature, when it gets sufficient dust inside and on the CPU heat sink fins the fan noise will surge up and down. Blowing it out settles the noise down. A computer I built a few years ago with a fan on the ATI Radeon graphics card will change sound when it gets a lot of dust on it. I'm not a gamer [don't really overwork a computer] and don't have a preference for the fan cooling for that card, usually a good heat sink on the chip is sufficient.
      My ComputerSystem Spec

  5. ThrashZone's Avatar
    Posts : 3,675
    3-Win-7Prox64 2-Win10Prox64
       04 Apr 2018 #5

    Hi,
    I change thermal paste when temps are odd
    Use Noctua NT-H1 or thermal grizzly kryonaut which ever is easiest to find.
      My ComputersSystem Spec

  6. topgundcp's Avatar
    Posts : 2,435
    Ubuntu14.04x64 MintMate17x64 Win10Prox64
       04 Apr 2018 #6

    Overclocker normally use Arctic Silver 5 High-Density Polysynthetic Silver Thermal Compound AS5-3.5G - Newegg.com
    It is more expensive but can bring down the temp 5-10 degree C.

    Your temp under load is 50-55 degree is considered good, nothing to worry and need not to apply new paste.

    Once a month, use an air blower to blow out all the dust inside the case will also help.
      My ComputerSystem Spec

  7.    04 Apr 2018 #7

    I wouldn't worry about it, assuming your PC specs are correct, I have a Phenom 1090T on one of my rigs, haven't touched the processor since it was installed back in 2010 other than clearing out the dust every 6 months or so, runs at 55C max under load using air cooling forget what but its a cooler with copper heat pipes and a large fan, I did use Artic Silver when I installed it.
    May just be in your case the ambient room temperature is a bit higher than normal?
      My ComputersSystem Spec

  8.    05 Apr 2018 #8

    I was going to say that if the system was running fine and your temps were all normal, not to bother.

    If you know what you are doing, there's no harm in cleaning both surfaces and reapplying. Take some good measurements first, then do so after to see if you've made a difference.
      My ComputerSystem Spec

  9.    05 Apr 2018 #9

    The ambient room temp is below 25'C, it's mostly the CPU block and the radiator that heat up and cause my computer to become a 'heater' or 'heater/radiator' and it makes my bedroom then heat up around my computer.

    I do have my CPU overclocked from 3.02 to 3.8GHz but the temps are the same as when the CPU was stock clocked anyway so perhaps a couple degrees increment difference. I have no instability what so ever though.

    I benchmarked my CPU and GPU with AIDA64 Extreme as well.

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    My NB temperature is rather concerning if I'm honest.

    EDIT: I also don't know if my GPU is underclocked or if it's meant to be at the clocks it is set at.

    Graphics Processor Properties
    Video Adapter Asus R9280 Series
    GPU Code Name Tahiti Pro (PCI Express 3.0 x16 1002 / 679A, Rev 00)
    GPU Clock 300 MHz (original: 980 MHz)
    Memory Clock 150 MHz (original: 1300 MHz)
      My ComputerSystem Spec

  10.    05 Apr 2018 #10

    Leave the heat sink and thermal paste alone. It sounds to me that you have air flow restrictions, make sure the fans and inlet screens are clean and nothing inside the PC (cooling hoses, wiring harnesses) is restricting airflow.
    BTW the CPU block and rad are supposed to feel hot if the're doing there job.
      My ComputerSystem Spec


 
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