How To Tell Power Supply Wattage [Desktop POPULAR]

Shutdown. Silence. The machine protecting itself from you.

The sticker gives you a number. The truth gives you a lesson. And sometimes, the only way to learn is to sit in the dark, with a dead machine, and finally turn the box over. how to tell power supply wattage

You contort your phone beneath the PSU and snap a photo. Blurry, but readable. A sticker with logos, certifications, warnings in six languages, and then—smaller than the barcode, smaller than the serial number—the number you need: . Shutdown

You remember the graphics card you installed last year. The one the forums said needed “at least 500W.” You’d read that. You’d nodded. Then you’d told yourself it would probably be fine, because people online exaggerate, right? The sticker gives you a number

The first time your PC shut down mid-game, you blamed the game. Corrupted save, bad patch, who knows. You restarted, loaded back in, and made it forty-five minutes before the screen went black again. No warning, no blue screen, no flicker—just nothing . Like someone had pulled the plug.

Your PSU had +12V @ 28A. 336W. You’d been running a 395W system on a 336W rail. For a year. The fact that it only shut down occasionally was a miracle, not a malfunction.

And you realize: the question was never “how to tell power supply wattage.” The question was “how to stop lying to yourself about what you need.”