A strong, reliable power supply is the heart of a strong, reliable PC. Here's how to replace or install a new power supply in your computer.

Learning how to install a power supply is essential, whether you're building a gaming PC for the very first time or replacing existing parts.

Power supplies are a frequently misunderstood—and overlooked—PC component. Many users choose a PC power supply based on total wattage alone, assuming that higher is always synonymous with better.

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