How to Undervolting For GPU and CPU

By | August 2, 2021
How to Undervolting For GPU and CPU
How to Undervolting For GPU and CPU

How to Undervolting For GPU and CPU

Undervolting your graphics card or processor is one of the most straightforward and painless methods for lowering thermals, noise, and power consumption.

These benefits frequently have little or no effect on performance. However, Undervolting the GPU is necessary for some circumstances, such as fitting a large graphics card into a small ITX chassis if you want to maintain safe operating temperatures.

We’ll go through what undervolting is, how it’s done, the benefits, and how to undervolt your GPU and CPU today.

What Is Undervolting?

Overvolting is increasing a CPU’s power consumption. Undervolting is the polar opposite of overvolting, and it can reduce your CPU’s power usage. Undervolting is the technique of dynamically lowering the voltage of computer processors and components during operation. 

Dynamic voltage scaling conserves electrical voltage in this operation, lowering energy consumption and reducing heat output by computer components.

Undervolting is used in devices like laptops and mobile phones with a limited electrical supply and is powered by a battery. Undervolting is usually managed with the use of software-based power management solutions. However, similar utilities are sometimes included by default in most operating systems.

Undervolting the CPU isn’t as standard as undervolting the GPU. It’s most likely because most people prefer to overclock their CPU rather than risk slowing it down.

Undervolting a desktop CPU also necessitates tinkering with BIOS settings, which is more complex than undervolting a GPU. Furthermore, Intel CPUs can no longer be undervolted due to an exploit known as Plundevolt.

Undervolting is a technique for lowering the operating voltage or CPU to reduce thermals and noise. Undervolting might cost you a frame or two when it comes to graphics cards. However, in many situations, there is no reduction in performance.

How to Undervolting For GPU

Undervolting a GPU may be done in a variety of ways. I’ll show you two methods for undervolting your GPU. Choose the one that appeals to you the most. But, before you begin, keep in mind that undervolting your GPU beyond the manufacturer’s guidelines may cause system harm.

Use these techniques at your own risk; if an issue is discovered, we will not be held liable for any damages. Furthermore, the first approach that I’ll describe was explicitly created for Intel systems running Windows.

Along With the Use of Intel’s Extreme Tuning Utility

First, go to Intel’s website and download and install the Extreme Tuning Utility (XTU).

  1. When you first start the software, you’ll get a splash screen. The very first thing you must do is turn on the core voltage monitoring. To allow the core to voltage monitoring, go to the “monitoring” area in the top right corner, then to the system configuration.
  2. To enable core voltage monitoring, scroll down to ‘’core voltage” and check the option. In the system monitoring area, a new core voltage monitor will emerge, displaying system voltage. Close the settings window for the system monitor now.
  3. Go to the “advance tuning” option from the left menu. Then, take a snapshot or write down the default core voltage using the snipping tool.
  4. Reduce the voltages by dragging the mouse over the core voltage offset > then click Apply. Reduce voltage in 0.020v (-0.020v) increments, but keep decreasing voltage by 0.005v (-0.005v) until the system becomes unstable or crashes, in my view.

To make sure there aren’t any problems, I recommend “running.” If your system remains stable after making voltage adjustments, you’ve effectively undervolted the GPU.

By Making Use Of MSI Afterburner

Another way to undervolt your GPU is to use this approach. “MSI afterburner” may be downloaded and installed.

  1. Open the MSI afterburner program after the installation is complete.
  2. Let’s look at the image below to get a better understanding of the software’s operation.
  3. Before making any adjustments, make sure that your graphics cards are detected.
  4. Lower the meter labeled “Core Clock (MHz)” in the middle according to your desired adjustment settings.
  5. Click the “Tick (ü)” button now.
  6. By clicking the profile slot number, you may save the changes you’ve made.
  7. Hopefully, you understand what I’m saying, but if you don’t, please let me know. It’s OK if you check through the site I supplied and watch the video to make sure you understand everything.

How to Undervolting For CPU

We’re just demonstrating to you how to undervolt Ryzen 5000 CPUs because Intel disabled undervolting on the bulk of their CPUs, and Ryzen CPUs had poor undervolt results until the Zen 3 generation. Here’s a helpful tutorial if you still want to undervolt Ryzen 3000 CPUs.

Step 1:

Using third-party software such as Throttlestop is the simplest way to undervolt your CPU. This program is available for free download here. The program is slightly under 2MB in size, so it should only take a few seconds to download.

Step 2:

The program will launch when you execute the downloaded file, and you will be able to adjust a few options. The “Speedshift – EPP” option is one you should activate since it enables Intel’s speed shift technology, which improves smooth performance and battery life.

Step 3:

This step is completed by selecting the “TS Bench” option from the app menu’s bottom section. Take note of how the temperatures of your CPUs change while you conduct this test. These numbers will compare to the temperatures after the CPU has been undervolted.

Step 4:

To begin the undervolting procedure, access the undervolting menu by pressing the “FIVR” button. Enable the “OK – save voltages immediately” option when this menu appears. Enabling this option ensures that any changes you make are instantly preserved.

Step 5:

The “Offset voltage slider” in the center portion of the menu may change your CPU’s voltage. Start by lowering your voltage by 100 millivolts.

If your machine fails, it’s because the -100mV is too much for it. Wait for it to resume before adjusting the voltage to -80mV.

Step 6:

Crushing is a necessary step in establishing your CPU’s voltage limit. If your computer remains steady after increasing the voltage by -100mV, add -10mV until it smashes.

The last stable adjustment determines the minimal voltage your computer can function at before it smashes.

The minimal number does not apply to all GPUs; it varies depending on the type of computer you have and the CPU’s power rating. After you’ve made your changes, click “Apply” and then “OK.”

Step 7:

Run a TS Bench test to measure the CPU temperature after undervolting it to see if your undervolting efforts have paid off.

If you encounter errors during the test, change (raise) the voltage value by 10mV and repeat the test. If the faults remain, make adjustments until you are free of them.

The operational temperatures of your CPU should now be lower than the temperatures obtained in the first TS Bench test before undervolting the CPU after completing this test.

Step 8:

You’ll need to set up Throttlestop after making the following modifications to guarantee that your computer doesn’t revert to its default settings when you restart it.

First, uncheck the taskbar option and then select the “settings” button while on the main app menu. A new window will pop up with a few options for you to tweak.

Enable the “start minimised” and “minimise on close” choices in this new window. Throttle stop will always stay in the notification area rather than on the taskbar when you enable these options.

  1. On your Windows PC, launch the task scheduler application (you can search for it using the search menu at the bottom left of your desktop). While the app is active, go to the app menu and select “Create basic task” from the actions section. Next, you’ll be asked to name the task; type Throttlestop and then click Next.
  2. Select “when I log on” as the trigger, then click Next. Select “start a programme” as your action and go to the next step. Then choose the throttlestop.exe file that you downloaded by clicking the browse option. Next, select the option to “Open the properties dialogue for this job when I click finish” after clicking open. After you’ve enabled this, select “Run with the highest rights” from the menu bar. After you’ve enabled this, go to the properties page and click “Run with the highest rights.”

Is Undervolting Safe?

Undervolting your CPU or GPU is relatively safe as long as you follow the instructions carefully (we shall share it later in this article). First, however, it is essential to consult your computer’s user manual to determine the appropriate voltage range for the GPU or CPU on your motherboard.

Your CPU and perhaps other motherboard components will damage if you use the incorrect voltage. The good news is that most modern computers will prevent you from changing the voltage outside the specified range.

Some people confuse undervolting with underclocking; however, the two techniques are distinct and can have different effects. Let’s have a look at how they vary.


  • Undervolting your CPU or GPU is an option if you want to minimize the amount of energy your computer consumes.
  • The quantity of heat dissipated by your CPU or GPU will be considerably decreased if the voltage is adjusted.
  • If you have a laptop that uses a lot of energy, undervolting the processor might provide you with a few minutes or even hours of more battery life.
  • When the quantity of heat dissipated by your processor is reduced, the fans spin at a slower rate, resulting in less noise.
  • Overheating is one of the leading causes of hardware failure. When the quantity of heat created by the GPU and CPU is reduced, the computer runs more relaxed, reducing the rate of heat-related hardware damage.


  • Undervolting your system without the correct information might cause it to collapse; it should be done carefully, following all of the procedures, and the voltage should gradually lower.
  • The chipset or the GPU may damage if the voltage is reduced too much. You can see what happens if the GPU’s voltage is insufficient.


Undervolting a GPU will not harm it, but it may not always result in optimal performance. You won’t harm your GPU if you undervolt it, but you will lose some stability. It would help determine whether the power savings and cooler operation are worth the risk of instability. 

While undervolting does not harm your CPU, going too far might cause your system to become unstable (though this is trivial to fix).

On the other hand, overvolting might harm your CPU if performed incorrectly, but it can allow you to overclock your processor to more incredible speeds when done correctly.