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Cpu not entering cstate anymore

MingLee420

Recently got new ram but cleared bios for some reason but i entered most things i remember but my cpu isnt going into c state like maybe for a split second and never goes back down did edit power plan, i have cstates enabled have dynamic core clock and offset voltage and used to work but now dosent did i forget something in bios?

Main:

  • CPU
    10700k 5ghz All core 47 ring ratio 1.275v
  • Motherboard
    MSI Z590 A Pro
  • RAM
    4x8 viper steel samsung bdie: 4200-17-17-30
  • GPU
    Gigabyte RTX 3080 Gaming Oc
  • Case
    O11 air mini
  • Storage
    970 Evo Plus 500gb OS, Sn550 1tb, 860 evo 500gb, 2tb MX500
  • PSU
    RM750x (2018)
  • Display(s)
    Acer Nitro vg272up, Kogan 24 1080 120hz
  • Cooling
    arctic 280aio, EK M.2 NVMe Heatsink on 970 evo plus
     
    Second: 
    Cpu: i5-8400
    Cooling: ID-Cooling Frostflow 120x
    Ram: 2x8gb 2666 c16 hyperx fury, tuned the absolute balls out of it but def not stehble.
    Mobo: Asus Prime H310M-K
    Gpu: Igpu
    Case: Coolermaster MB311L
     
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Maybe I'm behind the times, but what is "C State"?  And how do you know it has gone into it for a split second?

It must be true, I read it on the internet...

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Just now, shoutingsteve said:

Maybe I'm behind the times, but what is "C State"?  And how do you know it has gone into it for a split second?

i use hwinfo, c state allows the cpu to use less power/core voltage and downclocks the cpu to like 800mhz when idle

Main:

  • CPU
    10700k 5ghz All core 47 ring ratio 1.275v
  • Motherboard
    MSI Z590 A Pro
  • RAM
    4x8 viper steel samsung bdie: 4200-17-17-30
  • GPU
    Gigabyte RTX 3080 Gaming Oc
  • Case
    O11 air mini
  • Storage
    970 Evo Plus 500gb OS, Sn550 1tb, 860 evo 500gb, 2tb MX500
  • PSU
    RM750x (2018)
  • Display(s)
    Acer Nitro vg272up, Kogan 24 1080 120hz
  • Cooling
    arctic 280aio, EK M.2 NVMe Heatsink on 970 evo plus
     
    Second: 
    Cpu: i5-8400
    Cooling: ID-Cooling Frostflow 120x
    Ram: 2x8gb 2666 c16 hyperx fury, tuned the absolute balls out of it but def not stehble.
    Mobo: Asus Prime H310M-K
    Gpu: Igpu
    Case: Coolermaster MB311L
     
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@MingLee420 The C states have nothing to do with down clocking the processor to 800 MHz. The Windows Balanced power plan with the Minimum processor state set to the default 5% is what controls the CPU lowering its MHz. I replied to the other thread where you posted this same question. 

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34 minutes ago, unclewebb said:

@MingLee420 The C states have nothing to do with down clocking the processor to 800 MHz. The Windows Balanced power plan with the Minimum processor state set to the default 5% is what controls the CPU lowering its MHz. I replied to the other thread where you posted this same question. 

 yh but the vcore was also at 1.29 but i just realised that microsoft store was donwloading 100gb of a game in the background but i paused and looks to be normal 

Main:

  • CPU
    10700k 5ghz All core 47 ring ratio 1.275v
  • Motherboard
    MSI Z590 A Pro
  • RAM
    4x8 viper steel samsung bdie: 4200-17-17-30
  • GPU
    Gigabyte RTX 3080 Gaming Oc
  • Case
    O11 air mini
  • Storage
    970 Evo Plus 500gb OS, Sn550 1tb, 860 evo 500gb, 2tb MX500
  • PSU
    RM750x (2018)
  • Display(s)
    Acer Nitro vg272up, Kogan 24 1080 120hz
  • Cooling
    arctic 280aio, EK M.2 NVMe Heatsink on 970 evo plus
     
    Second: 
    Cpu: i5-8400
    Cooling: ID-Cooling Frostflow 120x
    Ram: 2x8gb 2666 c16 hyperx fury, tuned the absolute balls out of it but def not stehble.
    Mobo: Asus Prime H310M-K
    Gpu: Igpu
    Case: Coolermaster MB311L
     
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29 minutes ago, MingLee420 said:

but the vcore was also at 1.29

When the C states are enabled, you can ignore the reported vcore. When a core enters the C7 state, it is disconnected from the voltage rail so it is sitting idle at 0 volts. There is no way for monitoring software to accurately measure this. That is like poking someone in the ribs and asking them if they are asleep. 

 

Instead of voltage, concentrate on C state percentages. 

 

On my desktop computer, I do not bother slowing the CPU down when it is idle. It is not necessary if the C states are enabled. You can get great idle power consumption and temperatures even when all 10 cores are running at 5000 MHz. 

 

image.png.ec9ec8ff0c477c8dec370d3e344cbf83.png

 

 

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