How to check the power supply on your PC, a crucial step before upgrading it

Computer pc tower wires
Your computer’s power supply connects to its main power cord. AngiePhotos/Getty Images
  • You can check the power supply on your PC by removing the side panel of its case.
  • If you bought a prebuilt PC, you can also likely check the power supply in the computer’s manual or by contacting the manufacturer.
  • Knowing your PC’s power supply can help you upgrade other parts of the computer, like your graphics card.
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Whether it’s for work or play, everyone wants their PC optimized, and your PC’s power supply plays a pivotal role in how the computer functions. If you don’t have enough power to run all the parts of your computer, then you could see some catastrophic system failures and crashes.

So if you want to upgrade your computer – for instance, putting in a cutting-edge graphics card that needs more power but can boost your frames per second – you need to make sure that your computer’s power supply is up to the task.

Unfortunately, checking your power supply isn’t as easy as other tasks. You can’t check it with an app – instead, you’ll need to open your PC’s case and look at the power supply directly.

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