. Reddit +3 1. Physical Inspection (The Most Reliable Method) The only certain way to identify your PSU is to read the sticker located directly on the unit. Turn off and unplug: Completely power down your PC and remove the power cable from the wall for safety. Open the case: Use a screwdriver to remove the side panel of your computer tower. Locate the PSU: It is typically a metal box found at the very top or very bottom of the case. Read the label: Look for a large sticker or engraved plate. It will list the
Some PSUs are installed with the label facing the case interior wall. You may need to: how to check what power supply i have
On older or cheaper power supplies, the total wattage (e.g., 500W) can be misleading. Look at the sticker on the PSU again for the "12V" row. Turn off and unplug: Completely power down your