Sunday, May 29, 2011

How To Install or Replace an ATX Power Supply

Posted by ttblogger • 0 Comments • Discuss in Forums • Permalink
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The power supply of your PC is perhaps the most overlooked component of your system. When it’s behaving as it should, you don’t notice it’s even there, but when it starts to fail, your desktop PC can exhibit any number of strange behaviors. If your PC is suffering from seemingly random reboots or doesn’t start at all, the power supply unit (PSU) might be the culprit. In this Tech Tip, I’ll tell you how you can install or replace an ATX power supply in your PC.

First things first, the power supply unit is a metal (usually aluminum) box that sits in the rear of your PC’s case. It is designed to take the alternating current (AC) from your power outlet and converts it into a stable direct current (DC) that the components inside can safely use. The type of power supply we’re dealing with is known as an ATX power supply. ATX stands for Advanced Technology Extended and is the most common form factor that desktop PCs use today. It comes from a standard developed by Intel back in 1995 that was designed to provide the basic sizing and configuration guidelines for cases, computer motherboards and power supplies. The standard has been modified over time to meet the continued needs of components where, thanks to various modifications, allows the design to be applied to different types of cases and increasing power requirements.

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