How To Check What Power Supply You Have Jun 2026

This sticker, often called the "spec label," will list the manufacturer (e.g., Corsair, EVGA, Seasonic), the specific model name, and the total wattage. Pay close attention to the +12V rail rating if you are checking for GPU compatibility. Method 2: Check Your Documentation or Order History

To check what power supply unit (PSU) you have, the most reliable method is to physically inspect the unit , as standard operating systems like Windows 10/11 cannot identify the specific PSU model or wattage through software. Desktop PC: Physical Inspection Because the PSU does not have a data connection to the motherboard to report its identity, you must look at the label directly. Reddit +1 Locate the Label: Shut down your PC, unplug the power cable, and remove the side panel. The PSU is typically located at the top or bottom of the case. Read the Specs: Look for a sticker on the side of the unit that lists the how to check what power supply you have

If you don't have a specialized cable running from your PSU to a USB header on your motherboard, these programs will not show your power supply information. This sticker, often called the "spec label," will

💡 Never judge a power supply solely by its wattage. A high-quality 600W unit from a reputable brand is significantly better and safer than a generic 800W unit found in a budget pre-built. Look for an "80 Plus" certification (Bronze, Silver, Gold, or Platinum) on the label to gauge its efficiency. Desktop PC: Physical Inspection Because the PSU does