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[ The PC Guide | Systems and Components Reference Guide | Power | The Power Supply ]

Parts of the Power Supply

This section of our guide to the power supply takes a look at the various parts that comprise the power supply both inside and outside the box. The exact contents of any supply vary depending on both the supply's form factor and its individual design, but most of them have the same general components.

Annotated view of an ATX/NLX power supply showing most
of the major external components.

Original image Enlight Corporation
Image used with permission.

Warning: Power supplies generate high voltages internally and can be dangerous. Unless you have been specifically trained to work inside power supplies, you should not open one. Even with the unit unplugged dangerous electricity can remain stored within its components for some time.

Next: Case and Cover

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