What is a VRM circuit?

If you are wondering which component of the motherboard needs the most attention, there are certainly many, but one of them called VRM will be the one we need to pay attention to because  VRM focuses  on helping for stable power of CPU and GPU. So  what is VRM  and how does it work? Let's learn about this article with WebTech360 .

What is a VRM circuit?

The VRM (Voltage Regulator Module) circuit is the voltage regulator in the motherboard. With the presence of VRM, the CPU and GPU will be provided with clean power to operate stably.

The VRM circuit is capable of converting DC power to a lower value. For example, the VRM can convert +12VDC or +5VDC power to +1.3VDC or 1.1VDC so that CPU and RAM can work properly. This voltage level is also kept at different limit, they are also known as “DC to DC converter”.

The conversion of voltages into different levels is not a new technology. However, it plays a very important role to ensure the normal operation of electrical and electronic systems.

When the VRM circuit is poor, it will affect the performance of the processor when it loads tasks. More seriously, the computer system can be turned off suddenly, especially when OC. Therefore, users need to pay more attention to this part to help the computer work well.

How does the VRM circuit work?

A modern computer power supply (PSU) typically supplies 12V to the motherboard. However, CPUs and GPUs cannot withstand that voltage. At that time, the VRM will work its magic when adjusting the source to about 1.3V, 1.1V or lower so that the GPU/CPU works in the best state.

The VRM circuit must work correctly to avoid unfortunate incidents, especially those affecting the CPU. This explains why its structure is much more complicated than that of conventional transformers.

Basically, a VRM circuit is a buck converter - a type of device that can drop exactly the desired voltage level. The structure of the circuit consists of 3 main parts which are:

- MOSFET: Metal-Oxide Semiconductor Field-Effect Transistor.

- Inductor

- Capacitor

In addition, they are also integrated with control ICs (also known as PWM controllers). There are two common types of VRM circuits: single-phase and multi-phase. In particular, most computers today are equipped with multiphase circuits with the following schematic diagram:

The phases of the VRM circuit will take turns supplying power to the CPU for short and staggered intervals. Therefore, at a time, only 1 phase is active, but the total power generated for the supply remains stable. This is an important factor for the computer to work well and promote the performance of the CPU/GPU.

Using a multiphase VRM circuitry also brings a pretty big benefit in terms of heat dissipation. The transmission of power over a larger area reduces local heat generation. This reduces pressure on system components, improving power and operating costs.

What is a VRM circuit?

VRM Single Phase

What is a VRM circuit?

Multi-Phase VRM

Voltage doubler in VRM . circuit

Multiphase VRM circuits are sold with the symbol “ 6+2” or “8+3” . The number before the plus sign is the number of phases dedicated to providing power to the CPU. The other number indicates the number of phases to supply voltage to other components of the motherboard such as RAM.

In case the first number is greater than 8, namely “12 + 1” or “18 + 1” , the actual number of phases is not so large. The manufacturer will use a voltage doubler (doubler) with the operating method is to split the power between the two lanes of MOSFET, capacitor and inductor available in each phase.

Thanks to the doublers, the manufacturer will take advantage of the benefits of the current phase without having to install additional physical phases, thus saving a lot of costs. However, mirrored phases will not be quite as efficient as real ones. The frequency of the supply current will be halved and there will be a certain delay. Moreover, at a time, only 1 of 2 phases can be turned on. Therefore, the way to create a VRM circuit with multiple phases using a doubler is just a way of marketing sales of the manufacturers, not bringing too much effect in reality.

Example: A VRM with 6 phases mirrored (to 12 phases) will typically perform less efficiently than a real 7 or 8 phase VRM.

With a basic VRM, it was possible to ensure the power source for the mid-range CPU to operate in a state. But when you need to overclock or perform performance-intensive tasks, then the quality of the VRM circuit will become more important.

The reason is because with 2 power supplies of the same power level, the one with VRM can give you a higher maximum power level of each line. As a result, power-intensive tasks will be quickly responded to by the VRM circuit. Users also do not have to invest in a larger power supply to meet the operation of the machine.

Hope this article helped you visualize the importance of VRM as well as answer questions related to this important component. Wish you will choose a quality motherboard as well as know which is a good motherboard to build a quality computer set at the best price!

Tags: #Wiki
Sign up and earn $1000 a day ⋙

Leave a Comment

What is 3uTools? How to install and use 3uTools in detail

What is 3uTools? How to install and use 3uTools in detail

3uTools supports users to manage utility applications more than the traditional way. Easy-to-use interface, will bring interesting experiences to you.

What is rendering?

What is rendering?

Rendering is the process of creating an image from a model into a movie scene or image using computer software.

What is CPU? What are the popular CPU types today?

What is CPU? What are the popular CPU types today?

The CPU is the data processing center, or simply understood, it is the brain that controls most of the rest of the components in a computer.

What is GPU? How does GPU affect work and play?

What is GPU? How does GPU affect work and play?

The GPU is the processor that handles graphics-related tasks for the CPU's central processor. Features on GPUs go far beyond basic graphics drivers like Intel's GPU

What is a Flyer? 3 Secrets of Best Flyer Design

What is a Flyer? 3 Secrets of Best Flyer Design

Flyer is a form of advertising, a marketing product that has existed for a long time, also known as leaflets, product marketing brochures.

What is ECC RAM? Distinguishing Non-ECC, Registered ECC and Unbuffered ECC RAM

What is ECC RAM? Distinguishing Non-ECC, Registered ECC and Unbuffered ECC RAM

ECC RAM is a type of RAM that has the ability to control the flow of data accessed in it to help automatically correct errors. ECC RAM has very high stability which helps you to reduce risk.

What is Ray Tracing? Learn how Ray Tracing works

What is Ray Tracing? Learn how Ray Tracing works

Ray Tracing is a technique that helps a computer create an image by tracing the path of light through pixels on the same image plane.

What Is Chipset? Its Tasks in the Computer System

What Is Chipset? Its Tasks in the Computer System

Chipset is a collection of chips, chipset refers to the chip on the mainboard or on the expansion card. On PC, commonly known as northbridge and southbridge.

What is Hyperthreading? Without Hyper threading, what will the CPU performance be like?

What is Hyperthreading? Without Hyper threading, what will the CPU performance be like?

Hyper threading is a hyper-threading technology and is known as Intel HT technology by globally famous technology manufacturer Intel.

What is V-Sync, FreeSync on the monitor? Are they really useful?

What is V-Sync, FreeSync on the monitor? Are they really useful?

On the quality screen, they integrate a technology called V-Sync, FreeSync. Let WebTech360 explain to you about V-Sync, what is FreeSync?

What is Anti-Aliasing? The Role of Anti-Aliasing

What is Anti-Aliasing? The Role of Anti-Aliasing

Anti-aliasing is the main adjustment mode to help objects and people become softer and not angular, the game experience will also be better.

What is Animation? 3 Simplest Ways to Create Animation

What is Animation? 3 Simplest Ways to Create Animation

Animation is an age-old method in which people make motions of images based on still images.

What is Footage Video? The Secret To Owning A Movie-like Footage

What is Footage Video? The Secret To Owning A Movie-like Footage

Footage is unedited raw footage and footage. You can understand that footage is all the components that make up a video, and footage is very diverse.

What is Storyboard? Why Do You Need Storyboards?

What is Storyboard? Why Do You Need Storyboards?

Storyboard is a storyboard, consisting of a series of illustrations and accompanied by notes about what is going on, carrying the content of the story.

Named return parameters in Golang

Named return parameters in Golang

In Golang, named return parameters are often referred to as named parameters. Golang allows naming the return parameters or results of functions in the function signature or definition.

Instructions for setting chat wallpaper on WhatsApp

Instructions for setting chat wallpaper on WhatsApp

WhatsApp has a chat wallpaper changer feature that allows users to set chat themes on WhatsApp. Users can choose from 30 different wallpapers for their chats, or use their personal photos to set chat wallpapers on WhatsApp.

What is FLV file? How to open FLV file on computer?

What is FLV file? How to open FLV file on computer?

You often download videos from the Internet to your computer to watch offline and often see FLV files. Are you struggling to know how to open them? Today, we will provide information about FLV video files for you in the article below.

How to view news archive on Facebook phone, computer

How to view news archive on Facebook phone, computer

To review Facebook posts, you need to enable Facebook's news archive. All Facebook posts after enabling archive mode will be saved in the archive for you to review whenever you need.

Latest MU Luc Dia VNG Code and how to redeem code

Latest MU Luc Dia VNG Code and how to redeem code

You can exchange MU Luc Dia VNG game codes for Zen and other currencies.

10 indispensable apps for book lovers

10 indispensable apps for book lovers

Just because you don't have a book on you doesn't mean you have to stop reading. All you need is your phone to try out social media apps for book lovers and find the next book you want to read.

Learn About Spotify Connect: The Spotify Feature Thats Forced Users to Quit YouTube Music

Learn About Spotify Connect: The Spotify Feature Thats Forced Users to Quit YouTube Music

The ability to control music playing on one device from another is an underrated feature that YouTube Music doesn't have — and that forces people to turn to Spotify.

How to Make a Snowball Explode in Minecraft Bedrock & Java Editon

How to Make a Snowball Explode in Minecraft Bedrock & Java Editon

Minecraft commands allow players to create many interesting effects and one interesting option is to make snowballs explode. Here is how to make snowballs explode in Minecraft.

Does Your PC Have an NPU? Heres How to Check

Does Your PC Have an NPU? Heres How to Check

On Windows 11, you can quickly check if your computer has an NPU (Neural Processing Unit), through 3 very simple ways.

Is Hibernate mode bad for PC?

Is Hibernate mode bad for PC?

Hibernate mode was born out of the need to keep the computer on 24/7 without wanting to drain the battery or to ensure the system is not affected by power failure, unlike the case of Sleep mode.

Instructions to add Euro 2024 calendar on iPhone

Instructions to add Euro 2024 calendar on iPhone

Adding the Euro 2024 calendar on iPhone helps users easily follow matches within the framework of Euro 2024, a football tournament with exciting matches.

Summary of information about Samsung One UI 7

Summary of information about Samsung One UI 7

Samsung Galaxy phones running One UI 7.0 will be more secure with Lockdown Mode, preventing unauthorized attacks.

How to create poster effect for photos in Photoshop

How to create poster effect for photos in Photoshop

Add a quick and easy poster effect to your images using Photoshop to recreate the classic look of posters printed with limited ink colors.

How to switch between old Outlook and new Outlook

How to switch between old Outlook and new Outlook

Not everyone is familiar with the new Outlook interface and wants to go back to the old Outlook to use the full features and more customizations on Outlook. Below is a guide to switch between the old Outlook and the new Outlook.

Learn About Organic Maps: An Open Source Alternative to Google Maps

Learn About Organic Maps: An Open Source Alternative to Google Maps

Organic Maps is a free, open-source mapping app for Android and iOS, developed by the same team behind MapsWithMe, first launched in 2011.