Log into your account on Amazon, Newegg, or the site where you bought your parts. Search your order history for "Power Supply" or "PSU."
Find the "Total Wattage" or "Max Power" listed in large print (e.g., 650W, 750W, 850W). check psu wattage on pc
Here are the three ways to check, ranked from most accurate to least accurate. Log into your account on Amazon, Newegg, or
But here’s the catch: unlike a CPU or GPU, you can’t simply open a system settings window to see PSU wattage. Windows, Linux, and macOS do not report this information. You have to get physical or rely on documentation. This guide will walk you through every possible method, from the simplest glance at a sticker to advanced software estimation and multimeter testing. But here’s the catch: unlike a CPU or
Before we dive into the process, let's quickly discuss why checking PSU wattage is important. Your PSU is responsible for providing power to all the components in your PC, including the CPU, motherboard, graphics card, and peripherals. If your PSU is not sufficient, it can lead to:
These tools ask for your components and recommend a PSU wattage. If your PC is stable, your current PSU is at least that amount.