You learn that wattage isn’t just a number. It’s a promise. And not all promises are kept. A $20 700W PSU is a fire in a box. A $100 450W unit from a trusted brand can run a system that draws 440W, because it’s built to deliver its rated power continuously, not just for the first five minutes. The sticker tells you peak wattage or sustained? Most don’t say. You have to know.
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. how to tell power supply wattage
Four hundred and fifty watts.