Most people don't really know what to look for when buy a power supply for their PC. There are six important variables to consider when choosing the best option: watts, output, efficiency, brand, connections, and price. Hardware-Revolution goes in-depth, answering the questions, “Which power supply do I need?” and “What should I look for?”
Before purchasing a new power supply, use the Newegg Power Supply Calculator to be sure it meets the requirements of your system.
