Knowing your power supply unit’s (PSU) wattage is crucial—whether you’re upgrading a graphics card, troubleshooting random shutdowns, or building a new PC from scratch. Unfortunately, unlike your RAM or CPU, Windows cannot directly read your PSU’s maximum power capacity.
If your PSU has no clear wattage label, or it says “Max Output: 400W (Peak)”, consider replacing it immediately with a reputable brand (Corsair, EVGA, Seasonic, be quiet!). An unknown or lying PSU is the #1 cause of mysterious crashes and can even damage your components. how can i find out my psu wattage
Here is the only reliable way to find your PSU wattage, along with a few workarounds if you can’t open your PC case. This is the only method that gives you an exact answer. You will need to look at the physical sticker on the side of your power supply. Knowing your power supply unit’s (PSU) wattage is