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Home»Windows»Minimum Processor State In Windows (Everything You Need to know)

Minimum Processor State In Windows (Everything You Need to know)

Deep ShresthaBy Deep ShresthaOctober 23, 2022
minimum processor state

When a system is idle, the configuration in the Operating System can lower system resource consumption, both hardware and software, to reduce power usage. Windows offers you multiple power options that let you lower system performance if it meets certain conditions. One such setting is the Minimum Processor State in Windows. 

Minimum Processor State is a power setting that lets you change the minimum processor usage value. You should set the minimum processor state to a lower value so that the processor uses minimum resources when it is performing minimal tasks, inactive or idle. This results in the CPU consuming less power.

However, there is much more to the minimum processor state and how it affects the CPU usage, power consumption, and heat generated. This article addresses a few queries about Windows’s minimum processor state setting and its optimal value.

Table of Contents

  • What Is Minimum Processor State in Windows?
  • How Does Minimum Processor State Value Affect Performance?
  • How to Change Minimum Processor State?
  • Add/Remove Minimum Processor State
  • What is the Ideal Minimum Processor State Value?
  • Does Lowering Minimum Processor State Save Battery?

What Is Minimum Processor State in Windows?

minimum processor state visualization

The minimum processor state refers to the amount of processing power a CPU is directed to use when the system is idle or under low stress. The minimum processor state value in power options lets you change the percentage value that determines the minimum operating frequency of the CPU.

If you set the minimum processor state value to 15%, the CPU will not go below 15% processor usage. But this entirely depends on the device you use.

When you change the minimum processor state value, you can not only control the power consumption, i.e., voltage and current, but also CPU core temperatures and clock speed.  You can lower the minimum processor state to lower CPU temperature if you are facing higher CPU temperature even when idle.

cpu minimum processor state

However, if you are running a processor-intensive application, and you see a dip in performance due to processor thermal throttling, increasing the minimum processor state value will bypass the thermal throttling.

Depending on the process you are currently running, you can either increase or decrease the minimum processor state value.

Since minimum and maximum processor state directly contributes to the change in system temperature, setting a lower minimum processor state also lowers the CPU fan’s RPM when idle, and increasing the value increases the fan’s RPM. 

Here are some components that changing the minimum processor state affects.
  • The voltage on each core
  • Temperatures
  • Power
  • Current
  • Each Core’s clock speed
  • CPU fan speed (Only if it is set to automatic)

One disadvantage of lowering the minimum processor state value is that it may decrease system performance. If that’s the case, you can slightly increase the minimum processor state. However, we only recommend setting the value to between 5%-15%.

How Does Minimum Processor State Value Affect Performance?

cpu utilization minimum processor state

When you set a lower minimum processor state value, the CPU usage will not go below the set percentage. This is a good configuration if you want to improve your CPU component’s lifespan. However, this can lead your system to have a choppy performance when running processor-intensive application.

When you run an application that uses quite a lot of processor resource, its temperature will increase, resulting in higher CPU fan RPM to cool the processor. But if the CPU starts to thermal throttle and the minimum processor state value is low, the system will use lower processor resource.

This means the low processor resources for the application, which will not perform as efficiently as it used to. This is where increasing the minimum processor state value comes in.

high cpu usage minimum processor state

When you have a higher minimum processor state value and the CPU starts to thermal throttle, the power settings will not let CPU usage go below the minimum processor state value. Even if the CPU thermal throttles, the system cannot limit the usage of processor.

This implies that, the processor-intensive application which suffered when setting a lower minimum processor state value will work pretty smoothly if you increase the value.

However, this does come with a few disadvantage like decreased processor and CPU fan life span, or the system may suffer from cooling issues due to dried-up thermal paste or abrupt shutdown because of overheating.

How to Change Minimum Processor State?

By default, Windows sets the minimum processor state value as 5%. But you can change its value according to your choice. Although you can select the minimum processor state to any value of your choice, make sure that you do not set a high percentage value. 

If you set the minimum processor state to a higher value, suppose 70%, your CPU will use higher processor resources even on idle. By doing this, the system does not let the CPU run below 70%.

So, if the CPU starts to thermal throttle, it will use 70% of the processor at the least, providing more resources. However, this might result in constant power consumption and increased CPU temps. And, the CPU fan will constantly spin at a higher RPM, which never a good sign.

  1. Press the Windows + R key to open Run.
  2. Typepowercfg.cpl and press Enter to open Power Options.
  3. Click on Change plan settings on the selected power plan.
    change power plan minimum processor state
  4. Click on Change advanced power settings.
  5. Expand Processor power management, and then expand Minimum processor state.
  6. Set the value to 25%. If you are on a Laptop, set both On-battery and Plugged-in to 5%.
    change advanced power minimum processor state
  7. Click on Apply, and then Save.

Add/Remove Minimum Processor State

If you cannot find the minimum processor state in power options, you need to make the setting visible using Command Prompt. Below we have explained the steps to add and remove minimum processor state in Windows

  1. Press the Windows + R key to open Run.
  2. Type cmd and press Ctrl + Shift + Enter to open Command Prompt as Administrator.
  3. Type powercfg -attributes SUB_PROCESSOR 893dee8e-2bef-41e0-89c6-b55d0929964c -ATTRIB_HIDE and press Enter to add minimum processor state to power options.
    add minimum processor state
  4. Type powercfg -attributes SUB_PROCESSOR 893dee8e-2bef-41e0-89c6-b55d0929964c +ATTRIB_HIDE and press enter to remove minimum processor state.
    remove minimum processor state
  5. Open Power options to check the minimum processor state.

What is the Ideal Minimum Processor State Value?

ideal minimum processor state

The default value for minimum processor state is 5%. However, depending on the type of system you use, this value can vary. Meaning that, if you are on a desktop, the base frequency that the processor can use to operate the entire system is about 20%.

Note: Base frequency is the minimum frequency that the CPU requires to keep the entire system running

So, setting the minimum processor value to minimum operating frequency will not make any sense as the processor will constantly use 20%. For desktop, you can set this value to 20%-30%.

However, in case of laptop, the base frequency to operate the system is very low compared to desktop. Therefore, you can set this value as low as 5% for laptops. But if you are running a heavy application, you can increase this value to 50% to increase its performance.

The CPU will constantly use higher resources if you have a higher minimum processor state value, even when the system is idle. This means higher CPU temperature and constant CPU usage.

Therefore, you can stick with the default 5% as the minimum processor state value. However, if your system suffers from lags when running processor-intensive application, you can slightly increase this value to improve CPU performance.

Does Lowering Minimum Processor State Save Battery?

Your CPU will run on a lower voltage when you lower the minimum processor state value. This means the power consumption is also low, thus increasing battery life. However, we do not recommend that you set the value to 0. 

Although your battery life will improve, the CPU performance may decrease if you set the minimum processor state to 0.

Question
Deep Shrestha
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Deep Shrestha works as a computer hardware writer at TechNewsToday with several hardware and programming certifications. Although he has been writing technical content for more than a year, his interest in hardware components started at a very young age ever since he heard about PC building. Pursuing his passion, he has assembled several desktop computers. Besides building desktop PCs, Deep also has hands-on experience fixing software and hardware issues on laptops and desktop computers. Using all this knowledge and skills about computer hardware, he's on a quest to make content that's easy to read and understand for everyone. You can contact him at deep@technewstoday.com

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