This article addresses the common issue of sudden PC shutdowns caused by overloaded power supplies, specifically focusing on the capabilities of an 850W 80 Plus Bronze PSU. It clarifies the misconception surrounding the "Bronze" rating as an efficiency standard rather than a cap on wattage output. By introducing the industry-standard "80% Rule," the article establishes a real-world safe limit of 680 watts for an 850W unit. It outlines compatible high-end hardware configurations (such as an RTX 4080 paired with a Ryzen 7), identifies risky setups to avoid (like the power-hungry RTX 4090), and highlights warning signs that a power supply is failing to keep up with system demands.