Cpu going .40-.50 ghz at 20 percent cpu!

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  1. Lovealll
    Posts : 7
    Windows 10
       New #1

    Cpu going .40-.50 ghz at 20 percent cpu!


    Yesterday I just resetted my laptop and I've been experiencing some problems when I play a game my cpu goes 2.6ghz then randomly out of no where it goes .40ghz or .50 the worse part is the percentage of my cpu is only 20-40 no programs making it high or anything, I'm not running things in background, my laptop isn't over heating please some give me some tip or solution to fix this and thank you !


    Specs:Intel(R) Pentium (R) CPU N3540 @2.16GHz

    4.00 GB (3.89 GB usable)
    64-bit operating system, x64 based proccesor


    Os Build-14393.0

    Windows 10 version 1607
    Last edited by Lovealll; 24 Feb 2018 at 20:37.
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  3. PolarNettles
    Posts : 809
    Win10
       New #2

    Are you seeing any performance degradation in your game?

    It's normal for your CPU speed to drop down to a few hundred MHz when nothing much is using the CPU.
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  4. Berton
    Posts : 14,009
    Win10 Pro and Home, Win11 Pro and Home, Win7, Linux Mint
       New #3

    And just because a CPU or parts are not overheating does not mean they have not been overheated. I junked a nice Gateway desktop the other day because of heat damage, sufficient to prevent Win10 to be re-installed clean.
    Last edited by Berton; 24 Feb 2018 at 23:06.
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  6. Lovealll
    Posts : 7
    Windows 10
    Thread Starter
       New #4

    PolarNettles said:
    Are you seeing any performance degradation in your game?

    It's normal for your CPU speed to drop down to a few hundred MHz when nothing much is using the CPU.
    When speed drop down the performance is terrible like it's like I lag so much I move every 2 sec step by step I can try to send a vid of it if needed
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  7. PolarNettles
    Posts : 809
    Win10
       New #5

    That sounds like thermal throttling then.

    Can you run HWiNFO - Hardware Information, Analysis and Monitoring Tools and check the sensor status?

    Cpu going .40-.50 ghz at 20 percent cpu!-image.png
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  8. Lovealll
    Posts : 7
    Windows 10
    Thread Starter
       New #6

    Cpu going .40-.50 ghz at 20 percent cpu!-capture.png
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  9. Lovealll
    Posts : 7
    Windows 10
    Thread Starter
       New #7

    The temperature is like that because my laptop is on my bed but when I wasn't on the bed it still did the same.
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  10. PolarNettles
    Posts : 809
    Win10
       New #8

    Are you able to get this to happen reliably? How long does the CPU speed stay low?

    In HWINFO Sensor Status, start a log when the CPU is running normally.
    Cpu going .40-.50 ghz at 20 percent cpu!-image.png

    Then play your game until you see the CPU speed drop and stop the log.
    Cpu going .40-.50 ghz at 20 percent cpu!-image.png

    Also, save reports from when the CPU speed is normal and from when the CPU speed is low. Attach all 4 files to this thread and we can take a look to see what exactly is happening.
    Cpu going .40-.50 ghz at 20 percent cpu!-image.png
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  12. Lovealll
    Posts : 7
    Windows 10
    Thread Starter
       New #9

    PolarNettles said:
    Are you able to get this to happen reliably? How long does the CPU speed stay low?

    In HWINFO Sensor Status, start a log when the CPU is running normally.



    Cpu going .40-.50 ghz at 20 percent cpu!-image.png

    Then play your game until you see the CPU speed drop and stop the log.
    Cpu going .40-.50 ghz at 20 percent cpu!-image.png

    Also, save reports from when the CPU speed is normal and from when the CPU speed is low. Attach all 4 files to this thread and we can take a look to see what exactly is happening.
    Cpu going .40-.50 ghz at 20 percent cpu!-image.png
    Hey, It didn't go down this time but I did notice something when i minimize the game the speed drops to 0.40-0.80 but when i quickly minimize i can see when for a second that when i run game it going 2.64Ghz also
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  13. Steve C
    Posts : 7,901
    Windows 11 Pro 64 bit
       New #10

    Also check in your power plan settings that the maximum CPU speed is set to 100%.
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