Why? For capacitor aging, future upgrades, and transient spikes. That 550W estimate → 715W target. Drop to the nearest quality unit: 750W.
Here’s a short, insightful piece on —why they matter, where they fall short, and how to use them wisely. The Hidden Flaw in Every PC Power Supply Estimator You’ve picked your parts. The GPU is a beast, the CPU runs hot, and you’re eyeing RGB fans like they’re going out of style. Now, the calculator tells you: “Recommended PSU: 550W.”
But if you buy a 550W unit, you might be in for random shutdowns, coil whine, or a dead PC a year from now.