F5F Stay Refreshed Power Users Overclocking What should be done with C-states?

What should be done with C-states?

What should be done with C-states?

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BreddyBoom
Member
93
08-26-2017, 09:33 AM
#1
Hey! I've been attempting to push my i5-6600K overclock for a few days now. This is my initial experience with overclocking, and I'm gradually understanding how these things function. Initially, I tried fixed Vcore and managed to reach a stable speed around 4300GHz at 1.3V, but I was frustrated because the voltage would spike when the system wasn't running. Since my BIOS didn’t have an adaptive voltage feature (at least I couldn’t locate it), I explored other methods. I discovered that adjusting Vcore with an offset didn’t change much in output, except for a drop to about 0.88V during idle.

Now I’m focusing on C-states. In my BIOS, each C-state has three options: Auto, Enabled, and Disabled. Here are the recordings from the first few minutes after booting with all three settings. Why isn’t there a clear difference between Enabled and Disabled? I thought Enabled would behave like Auto, but both settings seemed to produce different outcomes. Since I mainly use the PC for gaming, which setting do you recommend?

Some details:
CPU: Intel Core i5-6600K
CPU Cooler: ID-COOLING SE-214
Motherboard: ASRock Z170 Pro4S
GPU: MSI GTX 1080 TI GAMING TRIO
OS: Windows 10 version 1903
B
BreddyBoom
08-26-2017, 09:33 AM #1

Hey! I've been attempting to push my i5-6600K overclock for a few days now. This is my initial experience with overclocking, and I'm gradually understanding how these things function. Initially, I tried fixed Vcore and managed to reach a stable speed around 4300GHz at 1.3V, but I was frustrated because the voltage would spike when the system wasn't running. Since my BIOS didn’t have an adaptive voltage feature (at least I couldn’t locate it), I explored other methods. I discovered that adjusting Vcore with an offset didn’t change much in output, except for a drop to about 0.88V during idle.

Now I’m focusing on C-states. In my BIOS, each C-state has three options: Auto, Enabled, and Disabled. Here are the recordings from the first few minutes after booting with all three settings. Why isn’t there a clear difference between Enabled and Disabled? I thought Enabled would behave like Auto, but both settings seemed to produce different outcomes. Since I mainly use the PC for gaming, which setting do you recommend?

Some details:
CPU: Intel Core i5-6600K
CPU Cooler: ID-COOLING SE-214
Motherboard: ASRock Z170 Pro4S
GPU: MSI GTX 1080 TI GAMING TRIO
OS: Windows 10 version 1903

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CooKonut
Member
196
09-02-2017, 12:20 AM
#2
Hey there, I'm using the Asus X Hero Z-370 / 8700k at 5.1 ghz. My BIOS includes six overclocking profiles. I have "adaptive + c states on" and "manual vcore c staes off" set. When I switch to C states, it works well as long as the Windows power plan is "balanced," allowing the CPU to adjust clock and voltage. The 8700k at 5.0 ghz with adaptive profile runs at 1.28v, C states enabled, avx offset 0, and balanced power plan. Also, Avast Anti-Virus has a game mode that activates focus assist and sets the maximum power plan automatically, which is really convenient. My 5.1 ghz manual vcore is 1.34v; I've turned off C states and Intel speed step.
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CooKonut
09-02-2017, 12:20 AM #2

Hey there, I'm using the Asus X Hero Z-370 / 8700k at 5.1 ghz. My BIOS includes six overclocking profiles. I have "adaptive + c states on" and "manual vcore c staes off" set. When I switch to C states, it works well as long as the Windows power plan is "balanced," allowing the CPU to adjust clock and voltage. The 8700k at 5.0 ghz with adaptive profile runs at 1.28v, C states enabled, avx offset 0, and balanced power plan. Also, Avast Anti-Virus has a game mode that activates focus assist and sets the maximum power plan automatically, which is really convenient. My 5.1 ghz manual vcore is 1.34v; I've turned off C states and Intel speed step.

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FionnMacu
Member
147
09-05-2017, 03:19 PM
#3
It is the low power setting designed for periods when the CPU is idle. When overclocking, you should disable it unless your system uses adaptive voltage control. Switch it off and configure Windows power mode to performance.
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FionnMacu
09-05-2017, 03:19 PM #3

It is the low power setting designed for periods when the CPU is idle. When overclocking, you should disable it unless your system uses adaptive voltage control. Switch it off and configure Windows power mode to performance.

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Doddero
Junior Member
27
09-05-2017, 11:14 PM
#4
Hey there, I'm using the Asus X Hero Z-370 / 8700k at 5.1 ghz. My BIOS includes six overclocking profiles. I have "adaptive + c states on" and "manual vcore c staes off" set. If I keep the C states values unchanged and enable C states, it works well as long as the Windows power plan is "balanced." This allows the CPU to adjust clock and voltage accordingly. The 8700k at 5.0 ghz with adaptive profile runs at 1.28v, C staes are enabled with avx offset 0, and the power plan is balanced. Also, Avast Anti-Virus has a game mode that activates focus assist and sets the maximum power plan automatically, which makes it easy to just leave Windows in balanced mode—it's really convenient. My 5.1 ghz manual vcore is set to 1.34v, C states are off, and Intel speed step is disabled.
D
Doddero
09-05-2017, 11:14 PM #4

Hey there, I'm using the Asus X Hero Z-370 / 8700k at 5.1 ghz. My BIOS includes six overclocking profiles. I have "adaptive + c states on" and "manual vcore c staes off" set. If I keep the C states values unchanged and enable C states, it works well as long as the Windows power plan is "balanced." This allows the CPU to adjust clock and voltage accordingly. The 8700k at 5.0 ghz with adaptive profile runs at 1.28v, C staes are enabled with avx offset 0, and the power plan is balanced. Also, Avast Anti-Virus has a game mode that activates focus assist and sets the maximum power plan automatically, which makes it easy to just leave Windows in balanced mode—it's really convenient. My 5.1 ghz manual vcore is set to 1.34v, C states are off, and Intel speed step is disabled.