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



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Gamers and computer enthusiasts often ask this question, and the answer may surprise you.

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 power consumption of a motherboard varies based on its design, features, components attached, and the tasks being performed on the system. However, as a general guideline:

  1. Basic Motherboards: Simpler motherboards, often found in budget or older systems, might consume anywhere from 20W to 50W.
  2. High-End Motherboards: More feature-rich motherboards, equipped with things like multiple PCIe slots, advanced RGB lighting, additional controllers, or designed for overclocking, can consume between 50W to 100W or even more in some extreme cases.

Remember that the motherboard itself provides power to several other components, such as the CPU, RAM, and any expansion cards. While the power for these components doesn’t come directly from the motherboard, the motherboard’s VRM (Voltage Regulator Modules) and other power delivery systems play a role in their power management. The CPU, for instance, can consume anywhere from 35W for energy-efficient models to 250W+ for high-end, overclocked models.

The motherboard also distributes power to connected peripherals, like fans, storage devices, and USB devices. While this power doesn’t come directly from the motherboard, it’s facilitated through it.

Idle vs. Load – like all components, motherboards will consume less power when the system is idle compared to when it’s under load. The figures mentioned above are more representative of load scenarios.

To get an accurate reading of how much power your specific motherboard (and overall system) is using, you’d need to use a power meter or a similar device. This will give you a real-time measurement of your system’s power drawn from the wall, which encompasses all components, including the motherboard.

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

Motherboard power

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.

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

These are 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.

As a distinguished Professor of Computer Science, my expertise lies at the intersection of PC hardware, software development, and system troubleshooting. My foray into the realm of computer technology began during my high school years, where I honed my skills in building and repairing PCs. Subsequently, I provided consultancy services to a renowned PC repair establishment, solidifying my reputation in the field. Today, I am the trusted authority among peers and colleagues for insights and solutions related to PC and laptop challenges.

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