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How Much Power Does a Motherboard Use? (Solved!)

Gamers and computer enthusiasts often ask this question, and the answer may surprise you. Your motherboard is the central nervous system that connects all the other parts of your machine, but how much power does it consume?

A regular motherboard’s power consumption will be in the range of 25 to 40 W while a high-end motherboard’s power consumption can reach even 80 W. A motherboard’s power consumption is highly influenced by its features, the type of voltage regulator, integrated chipsets and modules, and BIOS power-saving features.

The motherboard acts as the connection point for all components requiring power. Therefore, the total amount of power a motherboard consumes is determined by the components connected to it, and what tasks you run on your computer.

Let’s look at how your motherboard uses and regulates power and what are some of the lowest power-consuming gaming motherboards on the market. Let’s get started.

Does The Motherboard Use Power Or Is It Just A PCB?

Motherboard power

A motherboard is a computer’s central printed circuit board (PCB). It provides connectivity between the various components of a computer, including the CPU, RAM, storage devices, and peripherals. The motherboard uses power to run the components and peripherals connected to it.

Modern motherboards come packed with a lot of features and have many chipsets integrated (the LAN chipset, sound chipset, wireless, etc.) that require energy.

A motherboard’s primary function is to provide a platform for other components to connect to and use power.

For example, the CPU uses power to run its calculations, and the RAM uses power to store data.

The graphics card also uses power to render images on the screen. Some high-end motherboards may use more power than others due to built-in WiFi or LED lighting.

The power a motherboard uses depends on the number and type of components connected to it. A basic desktop computer with a few peripherals will use less power than a gaming PC with multiple graphics cards.

Computers are becoming increasingly energy efficient, by reducing the power consumption of individual components, the overall power consumption of a system can be reduced.

How Much Power Is Actually Consumed By The Motherboard?

The motherboard is in charge of linking all the other parts of the system and ensuring they all work correctly. The motherboard is also essential in regulating the power that flows through the system.

The average gaming motherboard will consume around 300 watts of power. However, this number can be lower for more energy-efficient models or higher for models with more features.

Keep in mind that the above-average power takes into consideration all the other components connected and powered by the motherboard, the motherboard itself requires little power for its components and integrated chipsets, usually, you can consider that your motherboard will require 25 to 40 W of power.

A motherboard with more RAM slots will use more power than one with fewer RAM slots. Similarly, a motherboard with built-in WiFi or Bluetooth will use more power than one without these features.

Power is typically measured in watts (W). One watt is equal to one joule per second (J/s).

The amount of power that a component uses can be calculated by multiplying the voltage (V) by the current (I). This gives us the following equation: P = VI

For example, a component with a voltage of 12V and a current of 0.5A would use 6W of power.

The power consumption of a motherboard can also be affected by its use. For example, if you constantly run CPU-intensive tasks on your PC, your motherboard will use more power than if you only use it for basic tasks like browsing the internet or watching videos.

How Much Power Does RAM Use?

One of a computer’s critical components is RAM, one of the biggest power consumers. Depending on the type of RAM, it can use anywhere from 2 watts to over 10 watts of power. So, how much power does your RAM use?

The answer depends on a few factors, including the type of RAM you have, the speed of your RAM, and how many modules you have installed. For example, if you have two 4GB DDR4-2400 modules installed in your system, they will consume around 6 watts of power. If you have four 8GB DDR4-3200 modules installed, they will consume around 12 watts of power.

As you can see, the amount of power consumed by your RAM can vary quite a bit. However, you can generally expect your RAM to consume between 2 and 10 watts of power.

Of course, the actual power consumption will vary depending on how much you use your computer and what kind of workloads you’re running. A useful generalization is that for every 100MHz increase in clock speed, there’s about a 1-watt increase in power consumption.

To estimate the amount of power your specific setup consumes, you can use a tool like PCPartPicker’s Power Consumption Calculator. Just enter your components to estimate how much power your system will use under different conditions.

What Is The Lowest Power-Consuming Gaming Motherboards On The Market?

There are a few different gaming motherboards on the market that claim to be the lowest power-consuming option. The most popular options are the MSI B350M Bazooka and the ASUS ROG Strix B350-F Gaming. But it’s important to understand that while some may use less power overall, they may sacrifice features or performance in other areas.

The MSI B350M Bazooka is a microATX motherboard that uses an AMD B350 chipset. It has a TDP of only 35 watts, making it one of the most power-efficient gaming motherboards. It also features military-grade components and support for AMD’s Ryzen processors, making it an excellent option for gamers looking to construct a high-performance gaming computer on a tight budget.

The ASUS ROG Strix B350-F Gaming is another power-efficient option, with a TDP of only 40 watts. It uses an AMD B350 chipset and supports AMD’s Ryzen processors. It features Aura Sync RGB lighting and comes with many other gaming-oriented features, making it an excellent choice for gamers who want to build a high-performance system without sacrificing style or functionality.

These are just two examples of low-power-consuming gaming motherboards available on the market. When choosing a motherboard for your gaming PC, it is essential to consider all options to find the best balance of features and performance for your needs.

MotherboardPower Consumption
MSI B350M Bazooka35 watts
ASUS ROG Strix B350-F Gaming40 watts
Lowest Power-Consuming Gaming Motherboards


A motherboard uses power to operate. The power a motherboard uses depends on its model and make and the variety and quantity of connected devices.

When choosing a gaming motherboard, it’s essential to consider its features and how much power it will consume. Energy-efficient models can save you money in the long run, both in terms of your electricity bill and heat output. With so many possibilities available, there’s bound to be a gaming motherboard for you and your requirements.

I started building and fixing PCs in high school. After a couple of years of offering consultancy to a PC repair shop, I became the goto guy for all my acquaintances for PC/Laptop related buying advice or troubleshooting.