Whether your computer is crashing during gaming, shutting down randomly, or you’re planning to install a new graphics card, knowing your Power Supply Unit’s (PSU) wattage is crucial.
Every PSU has a sticker. This is the only way to get 100% accurate information.
You do not need to open a laptop. Look at the power brick (the block on the charging cable). how do i check my power supply wattage
Knowing the wattage of your power supply unit (PSU) is crucial, whether you are planning to upgrade your graphics card, troubleshooting random shutdowns, or simply curious about your computer's capabilities.
: Look for a large number followed by "W" (e.g., 500W, 750W). The label also lists the brand, model, and detailed voltage rails. Whether your computer is crashing during gaming, shutting
If you are upgrading to a powerful graphics card (like an RTX 4070 or above), do not guess. Open the case and read the sticker. A 750W PSU looks identical to a 400W PSU from the outside—don't risk frying your new hardware.
Low to Moderate Difficulty: Very Easy
: You may need to remove the side panel using a screwdriver.